作者： Luo, Zhuo;Song, Haixing;Huang, Min;Zhang, Zhenhua;Peng, Zhi;...

期刊： Agronomy,2022年12(5):1103- ISSN：2073-4395

通讯作者： Song, H.;Tian, C.

作者机构： [Luo, Zhuo; Song, Haixing; Zhang, Zhenhua; Tian, Chang; Peng, Zhi] Hunan Agr Univ, Hunan Prov Key Lab Plant Nutr Common Univ, Coll Resources & Environm, Hunan Prov Key Lab Farmland Pollut Control & Agr, Changsha 410128, Peoples R China.;[Luo, Zhuo; Song, Haixing; Zhang, Zhenhua; Tian, Chang] Natl Engn Res Ctr Efficient Utilizat Soil & Ferti, Changsha 410128, Peoples R China.;[Huang, Min] Hunan Agr Univ, State Key Lab Hybrid Rice, Changsha 410128, Peoples R China.;[Peng, Zhi] Yueyang Agr Sci Inst, Yueyang 414000, Peoples R China.;[Zi, Tao] Hunan Biol & Electromech Polytech, Changsha 410127, Peoples R China.

通讯机构： [Haixing Song; Chang Tian] A;Authors to whom correspondence should be addressed.<&wdkj&>Hunan Provincial Key Laboratory of Farmland Pollution Control and Agricultural Resources Use, Hunan Provincial Key Laboratory of Plant Nutrition in Common University, College of Resources and Environment, Hunan Agricultural University, Changsha 410128, China<&wdkj&>National Engineering Research Center for Efficient Utilization of Soil and Fertilizer Resources, Changsha 410128, China

关键词： nitrogen reduction;dense planting;yield;nitrogen use efficiency;soil net mineralized nitrogen

摘要： Under the current rice cropping system, excessive nitrogen application has become a major issue that needs to be changed, and nitrogen reduction has become a hot research topic in recent years. The use of optimum planting density is becoming a common agronomic management system in addition to nitrogen reduction, especially under double cropping rice systems. In this paper, changes in rice yield, nitrogen-use efficiency (NUE) and net N mineralization under dense planting with a reduced nitrogen rate (DPRN) were studied. By comparing DPRN with high-nitrogen sparse planting (SPHN), we found that the population tiller number (tiller number per unit area) increased by 9–27% under DPRN cultivation. Nitrogen accumulation under DPRN treatment of double-cropped rice was basically stable. NUE under DPRN was significantly higher by 1.3–22.7% compared to SPHN. The partial factor productivity of applied N (PFPN) was significantly higher than that of SPHN, with an increase of 4.3–22.8%. The net N mineralized of double-cropped rice under DPRN increased at different stages, and the increase in late-season rice (LSR) was greater than that of early-season rice (ESR). The highest net N mineralized in double cropping rice at different stages was found in the dense planting treatment (DP) and N2 (120 kg N h−1). In conclusion, DPRN cultivation of double-cropped rice could be accepted as a proper management strategy for reducing nitrogen input, improving NUE and promoting soil nitrogen mineralization under given conditions. © 2022 by the authors. Licensee MDPI, Basel, Switzerland.

语种： 英文

作者： 陈鸽;李中希;徐华勤;傅岳峰;黄敏;...

期刊： 杂交水稻,2022年37(3):118-125 ISSN：1005-3956

作者机构： [陈鸽] 湖南农业大学农学院,,岳阳市农业科学研究院;[李中希; 傅岳峰] 岳阳市农业科学研究院;[徐华勤] 湖南农业大学资源环境学院;[黄敏; 邹应斌] 湖南农业大学农学院

关键词： 早籼稻;直播;播期;秧苗素质;产量

摘要： 在洞庭湖区以陆两优996、株两优819、中嘉早17和湘早籼45号为材料，研究播期对直播早籼稻秧苗素质和产量的影响。结果表明，播期每向后推迟5 d，全生育期平均缩短3 d。随着播期推迟，出苗率、苗高、叶龄、单株绿叶数、茎基宽、百株地上部鲜重和干重、成秧率均显著提高，以第Ⅲ播期和第Ⅳ播期的秧苗素质最佳；播期对产量有极显著影响（P<0.01），随着播期推迟，有效穗数、每穗粒数先增加后下降，结实率下降，千粒重无明显变化，以第Ⅲ播期的产量最高；相同播期下，陆两优996和中嘉早17的产量高于株两优819和湘早籼45号。综上，洞庭湖区适宜于4月1日进行早稻直播，秧苗素质好，能获得高产，推荐品种为陆两优996和中嘉早17。

语种： 中文

作者： Yin, Xiaohong;Li, Xing;Xie, Jiaxin;Xiao, Zhengwu;Zhao, Chunrong;...

期刊： Agronomy,2022年12(11):2775- ISSN：2073-4395

通讯作者： Min Huang

作者机构： [Xie, Jiaxin; Xiao, Zhengwu; Chen, Jiana; Li, Xing; Yin, Xiaohong; Zhou, Chuanming; Cao, Fangbo; Kang, Yuling; Huang, Min; Zhao, Chunrong] Hunan Agr Univ, Key Lab Minist Educ Crop Physiol & Mol Biol, Rice & Prod Ecophysiol, Changsha 410128, Peoples R China.

通讯机构： [Min Huang] A;Author to whom correspondence should be addressed.

关键词： gas exchange;photosynthesis research;portable photosynthesis system;rice

摘要： The availability of commercially available portable photosynthesis systems has facilitated widespread photosynthetic research. Our study aimed to evaluate the reliability of a recently developed inexpensive portable photosynthesis system, Yaxin-1105, in measuring gas exchange in rice (Oryza sativa L.) leaves. Gas exchange parameters, including net photosynthetic rate (Anet), stomatal conductance (gs), intercellular CO2 concentration (Ci), and transpiration rate (E), were measured on 88 rice leaves across seven rice cultivars and three growth stages (panicle initiation, heading, and early ripening), using both Yaxin-1105 and LI-6400XT. There were significant difference between each gas exchange parameter at each growth stage measured by Yaxin-1105 and LI-6400XT, except Ci at the heading stage. Mean Anet, gs, and E measured by Yaxin-1105 were 26–66% lower than those measured by LI-6400XT at panicle initiation, heading, and early ripening stages. Mean Ci measured by Yaxin-1105 was 13–22% higher than that measured by LI-6400XT at panicle initiation and early ripening stages. The coefficients of determination between each gas exchange parameter measured by Yaxin-1105 and by LI-6400XT at panicle initiation, heading, and early ripening stages ranged from only 0.0007 to 0.1889. These results indicate that the Yaxin-1105 is not a reliable tool for measuring gas exchange in rice leaves. © 2022 by the authors.

语种： 英文

作者： Huang, Min;Chen, Jiana;Cao, Fangbo

期刊： Scientific Reports,2022年12(1):6207 ISSN：2045-2322

通讯作者： Huang, M

作者机构： [Chen, Jiana; Cao, Fangbo; Huang, Min; Huang, M] Hunan Agr Univ, Key Lab, Rice & Prod Ecophysiol, Minist Educ Crop Physiol & Mol Biol, Changsha 410128, Peoples R China.

通讯机构： [Huang, M ] H;Hunan Agr Univ, Key Lab, Rice & Prod Ecophysiol, Minist Educ Crop Physiol & Mol Biol, Changsha 410128, Peoples R China.

摘要： The development of double-season rice cropping systems has made a considerable contribution toward achieving rice self-sufficiency in China. However, the planting area for double-season rice has sharply decreased in the Hunan-Jiangxi region (the most important producing region of double-season rice in China) as a result of the conversion from double- to single-season rice cropping systems (referred as the rice “double-to-single” phenomenon). Due to concerns about the negative effect of the “double-to-single” phenomenon on rice self-sufficiency in China, we have estimated the planting area of double- and single-season rice in the Hunan-Jiangxi region that will be needed by 2030 to maintain the contribution to China’s rice production, based on the most recent 10 years (2011–2020) of historical data available. The results of our analysis can provide guidance for the government’s decision-making when planning the planting area of double- and single-season rice in the Hunan-Jiangxi region. © 2022, The Author(s).

语种： 英文

作者： Zhao, Chunrong*;Yin, Xiaohong*;Chen, Jiana*;Cao, Fangbo*;Abou-Elwafa, Salah F.;...

期刊： CANADIAN JOURNAL OF MICROBIOLOGY,2022年68(7):483-492 ISSN：0008-4166

通讯作者： Zhao, Chunrong;Yin, Xiaohong;Chen, Jiana;Cao, Fangbo;Abou-Elwafa, Salah Fatouh Abou-Elwafa;Huang, Min

作者机构： [Chen, Jiana; Yin, Xiaohong; Cao, Fangbo; Huang, Min; Zhao, Chunrong] Hunan Agr Univ, Key Lab, Minist Educ Crop Physiol & Mol Biol, Rice & Prod Ecophysiol, Changsha 410128, Peoples R China.;[Zhao, Chunrong] Jiangxi Agr Univ, Minist Educ, Nanchang 330045, Jiangxi, Peoples R China.;[Zhao, Chunrong] Jiangxi Agr Univ, Jiangxi Key Lab Crop Physiol Ecol & Genet Breedin, Nanchang 330045, Jiangxi, Peoples R China.;[Abou-Elwafa, Salah F.] Assiut Univ, Agron Dept, Fac Agr, Assiut 71526, Egypt.

通讯机构： [Abou-Elwafa, S.F.] A;[Huang, M.] R;Agronomy Department, Faculty of Agriculture, Assiut University, Assiut, Egypt

关键词： Oryza Sativa;rapeseed straw-derived biochar;soil amendment;soil bacterial community

摘要： Numerous studies have reported the dynamics of microbes when biochar was applied, whereas the information on the alterations of bacterial community after application of rapeseed straw-derived biochar is limited. A pot experiment with two rapeseed straw-derived biochar application treatments (with biochar application at the rate of 200 g/pot, C1, and without biochar application, 0 g/pot, C0) was conducted. No significant differences were observed in the number of operational taxonomic units, observed species, Shannon index, Simpson index, Chao1, ACE, and phylogenetic diversity whole tree between the C1 and C0 treatments. Taxonomic analysis at the phylum level showed that the abundances of Bacteroidetes and Parcubacteria were higher in the C1 treatment compared to the C0 treatment, while Acidobacteria, Chloroflexi, Rokubacteria, Berkelbacteria, and Latescibacteria were observed with higher abundance in the C0 treatment compared to the C1 treatment. Taxonomic analysis at the genus level showed that the abundances of Gracilibacter, Lentimicrobium, unidentified Rikenellaceae, Hydrogenophaga, and Bacillus were higher in the C1 treatment compared to the C0 treatment, while Candidatus Solibacter, Candidatus Koribacter, and Lutispora abundances were found to be higher in the C0 treatment compared to the C1 treatment. Obvious clusters were observed between the C1 and C0 treatments in both principal component analysis and nonmetric multidimensional scaling. These results indicate that soil bacterial community was altered after rapeseed straw-derived biochar was applied. © Canadian Science Publishing. All rights reserved.

语种： 英文

作者： 陈鸽;刘宇;曹家林;雷涛;张鸣宇;...

期刊： 作物学报,2022年 ISSN：0496-3490

作者机构： [黎星; 康玉灵; 曹放波; 曹家林; 刘宇; 解嘉鑫; 雷涛; 黄敏; 肖正午; 张鸣宇] 湖南农业大学作物生理与分子生物学教育部重点实验室;岳阳市农业科学研究院农业生态环境研究所;[刘龙生] 衡阳市农业科学院植物保护与耕作技术研究所;[陈鸽] 湖南农业大学作物生理与分子生物学教育部重点实验室<&wdkj&>岳阳市农业科学研究院农业生态环境研究所

关键词： 休闲杂草;免耕水稻;产量;氮肥利用率

摘要： 为评价南方稻田休闲杂草还田对免耕水稻产量形成和氮肥吸收利用的影响，于2020和2021年，以超级杂交稻品种桂两优2号和Y两优1号为材料，在湖南省浏阳市进行大田定位试验，研究不同施氮量(0、150和225 kg hm–2)下休闲杂草还田(折合干重500 g m–2)对免耕水稻产量及其产量构成、干物质积累、氮素积累、氮肥利用率的影响。结果表明，杂草还田处理免耕水稻的产量较杂草不还田处理高10.28%。与杂草不还田处理相比，杂草还田处理免耕水稻的有效穗数、每穗粒数、群体颖花量和结实率分别高7.73%、4.52%、12.42%和0.88%，分蘖中期至拔节期、拔节期至齐穗期、齐穗期至成熟期的干物质积累量和氮素积累量分别高11.77%和40.74%、2.26%和21.16%、6.56%和28.09%。杂草还田处理免耕水稻的氮收获指数、氮肥吸收利用率、氮肥生理利用率、氮肥农学利用率和氮肥偏生产力比杂草不还田处理分别高4.11%、25.88%、7.50%、34.78%和12.28%。与杂草不还田条件下施氮225 kg hm–2处理相比，杂草还田条件下施氮150 kg hm–2处理免耕水稻的产量、氮收获指数、氮肥吸收利用率、氮肥生理利用率、氮肥农学利用率和氮肥偏生产力分别高7.77%、6.05%、44.83%、18.57%、70.98%和61.66%。由此可见，休闲杂草还田有利于提高免耕水稻产量和氮肥利用率，是减少免耕水稻氮肥施用的有效策略。

语种： 中文

作者： Tao, Zui;Lei, Tao;Cao, Fangbo;Chen, Jiana;Yin, Xiaohong;...

期刊： Phyton-International Journal of Experimental Botany,2022年91(2):429-437 ISSN：1851-5657

通讯作者： Huang, Min;Liang, Tianfeng

作者机构： [Chen, Jiana; Yin, Xiaohong; Cao, Fangbo; Lei, Tao; Tao, Zui; Huang, Min] Hunan Agr Univ, Coll Agron, Crop & Environm Res Ctr, Changsha 410128, Peoples R China.;[Yin, Xiaohong; Liang, Tianfeng] Guangxi Acad Agr Sci, Rice Res Inst, Guangxi Key Lab Rice Genet & Breeding, Nanning 530007, Peoples R China.

通讯机构： [Huang, Min] H;[Liang, Tianfeng] G;Hunan Agr Univ, Coll Agron, Crop & Environm Res Ctr, Changsha 410128, Peoples R China.;Guangxi Acad Agr Sci, Rice Res Inst, Guangxi Key Lab Rice Genet & Breeding, Nanning 530007, Peoples R China.

关键词： Harvest index;nitrogen uptake;plant height;lodging resistance;stem breaking resistance;super-rice hybrid

摘要： The "super rice" breeding program in China has been successful in developing high-yielding hybrids, including few with high harvest index values. However, there is limited information on the relationship between lodging resistance and harvest index, and the mechanisms underlying the relationship in super-rice hybrids. In this study, a two-year field experiment was conducted to compare lodging resistance and its related traits between two super rice hybrids differing in harvest index, i.e., Guiliangyou 2 (G2) with a high harvest index and Y-liangyou 1 (Y1) with a typical harvest index of modern high-yielding rice varieties. Results showed that compared to Y1, G2 was lower in plant height due to its lower aboveground N uptake, and its higher stem breaking resistance (i.e., lower stem breaking index) resulted from a lower stem height at its center of gravity. Consequently, G2 had a higher lodging resistance (i.e., lower plant lodging index) than Y1. This study suggests that developing super-rice hybrids with high harvest index values is a possible way to achieve both high grain yield and strong lodging resistance in rice.

语种： 英文

作者： 肖正午;黄敏

期刊： 中国稻米,2022年28(03):34-41 ISSN：1006-8082

作者机构： 湖南农业大学农学院/作物与环境研究中心,长沙410128;[黄敏; 肖正午] 湖南农业大学

关键词： 稻米;鲜湿米粉;品质评价;加工方式;保鲜方式

摘要： 米粉种类丰富,口感爽滑,质地柔韧,既可作为主食,又能当作早餐,深受广大消费者喜爱。因此,科学评价米粉品质、探究米粉品质影响因素始终受到研究者和企业的密切关注。本文综述了鲜湿米粉的分类与评价方法,从稻米品质、浸泡处理方式、磨粉工艺、辅料与食品添加剂、贮存保鲜方式等五个方面探讨了影响米粉品质的因素。目前,按成型工艺将鲜湿米粉分为切粉和榨粉。高直链淀粉含量品种做的米粉断条率和蒸煮损失率低,感官品质好,因此可将直链淀粉含量作为核心指标筛选出适宜作米粉的水稻品种。在调试出合适米水比的条件下,半干法研磨安全环保,对淀粉损伤较小,生产出的米粉品质与湿法研磨无显著差异。盐类或单甘脂等添加剂与保鲜方式结合使用,对鲜湿米粉保鲜效果更好。

语种： 中文

作者： Huang, Min;Lei, Tao;Cao, Jialin;Tao, Zui;Cao, Fangbo;...

期刊： EXPERIMENTAL AGRICULTURE,2022年58:e24 ISSN：0014-4797

通讯作者： Min Huang

作者机构： [Chen, Jiana; Yin, Xiaohong; Cao, Jialin; Cao, Fangbo; Zou, Yingbin; Lei, Tao; Huang, Min; Tao, Zui] Hunan Agr Univ, Minist Educ Crop Physiol & Mol Biol, Rice & Prod Ecophysiol, Key Lab, Changsha 410128, Peoples R China.;[Lei, Tao] Hengyang Acad Agr Sci, Hengyang 421101, Peoples R China.

通讯机构： [Min Huang] R;Rice and Product Ecophysiology, Key Laboratory of Ministry of Education for Crop Physiology and Molecular Biology, Hunan Agricultural University, Changsha410128, China

关键词： Growth patterns;Grain yield;Hybrid rice;Lodging resistance

摘要： Improving grain yield and lodging resistance are two important targets for improving rice production. The aim of this study was to link grain yield and lodging resistance with growth patterns in rice. A nitrogen (N) fertilization experiment was conducted in 2020 and 2021, which consisted of two N rates (150 and 225 kg ha-1) and three N split-application ratios among the basal, early tillering, and panicle initiation stages (6:3:1, 5:3:2, and 4:3:3). The results demonstrated that increasing the N rate from 150 to 225 kg ha-1 did not affect grain yield but increased the plant lodging index by 16%. This increase in the plant lodging index was attributable to a higher plant fresh weight resulting from improved post-heading growth and a lower plant lodging load, which was partially due to a higher leaf area index. Altering the N split-application ratio from 6:3:1 to 4:3:3 increased grain yield by 4% but did not affect the plant lodging index in rice. The increase in grain yield was due to improved post-heading growth mainly resulting from increased radiation use efficiency during the post-heading period, which was partially attributable to increased specific leaf weight. An improvement in pre-heading growth in 2021 did not affect grain yield but increased the plant lodging load and decreased the plant lodging index by 36% compared to 2020. The improvement in pre-heading growth was due to a higher intercepted solar radiation resulting from higher leaf area index and incident solar radiation during the pre-heading period. The results of this study indicate that improving pre-heading growth can maintain grain yield and increase lodging resistance, while improving post-heading growth by increasing canopy radiation use efficiency (but not the leaf area index) can increase grain yield and maintain lodging resistance. ©

语种： 英文

作者： Huang, Min

期刊： Food Security,2022年14(1):267-272 ISSN：1876-4517

通讯作者： Min Huang

作者机构： [Huang, Min] Hunan Agr Univ, Coll Agron, Crop & Environm Res Ctr, Changsha 410128, Peoples R China.

通讯机构： [Min Huang] C;Crop and Environment Research Center, College of Agronomy, Hunan Agricultural University, Changsha, China

关键词： Food security;Grain yield;Hybrid rice;Inbred rice;Rice production area;Production growth rate

摘要： The development of hybrid rice varieties, which have been reported to out-yield inbred rice varieties by about 10%, is necessary in ensuring China’s food security. However, the agricultural area where hybrid rice is grown has decreased by 25% (about 5 million ha) in China since 1995. Assuming such better yield performance of hybrids compared to inbreds, the decrease in hybrid rice production area in China is cause for concern. This review discusses the causes of such decline and analyse its potential effects on rice self-sufficiency. The analysis suggests that: (1) the decreasing hybrid rice production area is caused not only by technological factors but also by socio-economic factors; and (2) the decreased area under hybrid rice production does not lead to additional pressure on increasing crop yields from either hybrid or inbred rice production. These results should draw the attention of rice breeders, rice scientists, and rice producers to close the gap between the actual yield currently harvested and the potential yield of both rice hybrids and inbred rice. This will have to be achieved through scientific, technological, and socio-economic research and applications. © 2021, International Society for Plant Pathology and Springer Nature B.V.

语种： 英文

作者： Xiao, Qian;Dai, Miaoqi;Zhou, Hui;Huang, Min;Lim, Loong-Tak;...

期刊： Carbohydrate Polymers,2022年282:119105 ISSN：0144-8617

通讯作者： Xiao, Q

作者机构： [Zeng, Chaoxi; Dai, Miaoqi; Zhou, Hui; Xiao, Qian; Huang, Min] Hunan Agr Univ, Sch Food Sci & Technol, Changsha 410128, Hunan, Peoples R China.;[Lim, Loong-Tak] Univ Guelph, Dept Food Sci, Guelph, ON N1G 2W1, Canada.

通讯机构： [Xiao, Q ] H;Hunan Agr Univ, Sch Food Sci & Technol, Changsha 410128, Hunan, Peoples R China.

关键词： Deep eutectic solvent;Microstructure;Molecular structure;Semi-crystalline lamellar structure;Starch nanoplatelets

摘要： In this study, we report a top-down approach to fabricate starch nanoplatelets (SNPs) based on a deep eutectic solvent (DES) comprised of choline chloride and oxalic acid dihydrate. When subjecting waxy maize starch (WMS) to 2 h of DES treatment, the SNPs of oxalate half-ester were successfully fabricated. The formation mechanism of SNPs was studied by monitoring the changes in nanoplatelet morphology, amylopectin chain distribution, long-range crystallinity, and semi-crystalline lamellar structure of the DES-treated WMS at various treatment times. During the DES treatment, relative crystallinity values of WMS gradually decreased from 28.7 to 25.2%. With increasing DES treatment time from 0 to 1.5 h, the thickness of crystalline lamellae decreased from 6.38 to 5.57 nm, whereas the opposite trend was observed for the thickness of amorphous lamellae. The method developed in this work offers a green and efficient route to prepare non-toxic starch nanomaterials. © 2022 Elsevier Ltd

语种： 英文

作者： Cao, Jialin;Tang, Maoyan;Zhang, Ruichun;Chen, Jiana;Cao, Fangbo;...

期刊： EXPERIMENTAL AGRICULTURE,2022年58:e17 ISSN：0014-4797

通讯作者： Min Huang

作者机构： [Chen, Jiana; Cao, Jialin; Cao, Fangbo; Huang, Min] Hunan Agr Univ, Minist Educ Crop Physiol & Mol Biol, Rice & Prod Ecophysiol, Key Lab, Changsha 410128, Peoples R China.;[Tang, Maoyan] Guangxi Acad Agr Sci, Rice Res Inst, Nanning 530007, Peoples R China.;[Fang, Shengliang; Zhang, Ruichun; Liu, Longsheng; Zhang, Ming] Hengyang Acad Agr Sci, Hengyang 421101, Peoples R China.

通讯机构： [Min Huang] R;Rice and Product Ecophysiology, Key Laboratory of Ministry of Education for Crop Physiology and Molecular Biology, Hunan Agricultural University, Changsha, 410128, China

关键词： Chalkiness;Hybrid rice;Starch granules

摘要： The occurrence of chalkiness has decreased in new hybrid rice cultivars in China. As both chalkiness occurrence and starch granule size are associated with the biosynthesis of starch, we hypothesized that there may be a correlation between chalkiness occurrence and starch granule size, and this may partially explain the decreased chalkiness occurrence in the new hybrid rice cultivars. To test this hypothesis, a field experiment was conducted over eight environments (two years × four sowing dates) with two hybrid rice cultivars: one recently developed with low chalkiness occurrence, Jingliangyou 1468 (JLY1468) and a relatively older cultivar with high chalkiness occurrence, Liangyoupeijiu (LYPJ). Results showed that JLY1468 had a higher cumulative distribution of large-diameter (7.51-19.50 μm) starch granules and a lower grain weight of milled rice compared to LYPJ. As a consequence, mean and relative starch granule diameters were 6% and 21% higher in JLY1468 than in LYPJ, respectively. Although both the chalky grain rate and chalkiness degree were negatively correlated with mean and relative starch granule diameter, they were more closely correlated with the relative granule diameter. These results support our hypothesis regarding the relationship between chalkiness occurrence and starch granule size and suggest that the relative starch granule diameter is a relevant parameter in understanding the occurrence of chalkiness in hybrid rice. © The Author(s), 2022.

语种： 英文

作者： Hu, Liqin;Cao, Jialin;Zhang, Mingyu;Liu, Yu;Xiao, Zhengwu;...

期刊： Cereal Chemistry,2022年99(5):1007-1012 ISSN：0009-0352

通讯作者： Huang, M

作者机构： [Xiao, Zhengwu; Liu, Yu; Zhang, Mingyu; Cao, Jialin; Huang, Min; Hu, Liqin; Huang, M] Hunan Agr Univ, Rice & Prod Ecophysiol, Key Lab, Minist Educ Crop Physiol & Mol Biol, Changsha 410128, Peoples R China.;[Iqbal, Anas] Guangxi Univ, Key Lab Crop Cultivat & Farming Syst, Coll Agr, Nanning, Peoples R China.

通讯机构： [Huang, M ] H;Hunan Agr Univ, Rice & Prod Ecophysiol, Key Lab, Minist Educ Crop Physiol & Mol Biol, Changsha 410128, Peoples R China.

关键词： amylose;rice;starch digestion;texture;water-to-rice ratio

摘要： Background and Objectives: Increasing the water-to-rice (W/R) ratio can alleviate the hardness of cooked rice with high amylose content. However, whether it affects starch digestibility remains unknown. To determine the effect of the W/R ratio during cooking on starch digestion and texture properties, three W/R ratios, that is, 1.2, 1.6, and 2.0, two cultivars with different amylose contents: Zhenguiai (ZGA, 26.8 g/100 g) and Yuzhenxiang (YZX, 17.2 g/100 g) were evaluated. Findings: Our results showed that the different W/R ratios had no significant effect on the glucose production rate (GPR) of the ZGA and YZX cultivars. However, when the W/R ratio increased from 1.2 to 2.0, the hardness and chewiness of ZGA decreased by 33.5% and 42.0%, respectively. The hardness and chewiness of ZGA were quite close to YZX under the 2.0 W/R ratio. In addition, the GPR of ZGA was 48% lower than that of YZX under the same cooking condition. Conclusions: The hard texture of the high amylose content cultivar can be maximally adjusted without affecting digestion properties by increasing the W/R ratio in the range of 1.2–2.0. Significance and Novelty: Diabetic patients will not have to endure the hard texture of high-amylose rice. Rice producers can recommend more than one W/R ratio for consumers. © 2022 Cereals & Grains Association.

语种： 英文

作者： Luo, Zhuo;Song, Haixing;Huang, Min;Zhang, Zhenhua;Peng, Zhi;...

期刊： Agronomy,2022年12(5):1090- ISSN：2073-4395

通讯作者： Luo, G.;Song, H.

作者机构： [Shen, Tao; Luo, Zhuo; Song, Haixing; Luo, Gongwen; Zhang, Zhenhua; Yang, Zhichang; Peng, Zhi] Hunan Agr Univ, Hunan Prov Key Lab Plant Nutr Common Univ, Coll Resources & Environm, Hunan Prov Key Lab Farmland Pollut Control & Agr, Changsha 410128, Peoples R China.;[Shen, Tao; Luo, Zhuo; Song, Haixing; Luo, Gongwen; Zhang, Zhenhua; Yang, Zhichang] Natl Engn Lab Efficient Utilizat Soil & Fertilize, Changsha 410128, Peoples R China.;[Huang, Min] Hunan Agr Univ, State Key Lab Hybrid Rice, Changsha 410128, Peoples R China.;[Peng, Zhi] Yueyang Agr Sci Inst, Yueyang 414000, Peoples R China.

通讯机构： [Haixing Song; Gongwen Luo] A;Authors to whom correspondence should be addressed.<&wdkj&>Hunan Provincial Key Laboratory of Farmland Pollution Control and Agricultural Resources Use, Hunan Provincial Key Laboratory of Plant Nutrition in Common University, College of Resources and Environment, Hunan Agricultural University, Changsha 410128, China<&wdkj&>National Engineering Laboratory for Efficient Utilization of Soil and Fertilizer Resources, Changsha 410128, China

关键词： reducing nitrogen;reasonable dense planting;stabilized yield;nitrogen use efficiency;nitrogen translocation

摘要： Nitrogen fertilization and planting density are two key factors that influence the yield of rice. Reducing nitrogen fertilizer input and increasing planting density will help to improve nitrogen use efficiency and stabilize yield. Field and15N tracer method in plot experiments were conducted to study the trends of yield, nitrogen use efficiency (NUE) and nitrogen transfer of hybrid rice and conventional rice under dense planting with a reduced nitrogen rate (DPRN) and sparse planting with a high nitrogen rate (SPHN). Among the nitrogen in rice plants, the proportion of nitrogen from fertilizer under the DPRN was reduced by 1.8–13%. The late-season rice (LSR) had a higher rate of decrease compared with the early-season rice (ESR). The uptake efficiency of nitrogen fertilizer was significantly higher under the DPRN than that under the SPHN, with an increase of 7.7–21.9%. The accumulated nitrogen and translocated ratio under the DPRN before the heading stage were 6.1–10.8% and 2.0–9.6% higher than those under the SPHN, respectively. The yield did not change under different treatments. Those findings suggest that the DPRN could guarantee a stabilized yield while increasing the NUE and the amount of translocated nitrogen in the double-cropped rice system. © 2022 by the authorsLicensee MDPI, Basel, Switzerland.

语种： 英文

作者： Chen, Jiana;Cao, Fangbo;Albaqami, Mohammed;Huang, Min*;Abou-Elwafa, Salah F.*

期刊： Journal of Plant Growth Regulation,2022年41(8):3317-3332 ISSN：0721-7595

通讯作者： Huang, Min;Abou-Elwafa, Salah F.

作者机构： [Chen, Jiana; Cao, Fangbo; Huang, Min] Hunan Agr Univ, Coll Agron, Crop & Environm Res Ctr, Key Lab,Minist Educ Crop Physiol & Mol Biol, Changsha, Peoples R China.;[Albaqami, Mohammed] Umm Al Qura Univ, Fac Appl Sci, Dept Biol, Mecca, Saudi Arabia.;[Abou-Elwafa, Salah F.] Assiut Univ, Fac Agr, Agron Dept, Assiut 71526, Egypt.

通讯机构： [Huang, Min] H;[Abou-Elwafa, Salah F.] A;Hunan Agr Univ, Coll Agron, Crop & Environm Res Ctr, Key Lab,Minist Educ Crop Physiol & Mol Biol, Changsha, Peoples R China.;Assiut Univ, Fac Agr, Agron Dept, Assiut 71526, Egypt.

关键词： Oryza sativa;Starch and sucrose metabolism;LC–MS/MS analysis;TMT labeling;Differential protein expression;Grain development

摘要： Grain filling is a pivotal grain weight determinant factor and has a great impact on rice yield potential. High grain weight was attributed to a high grain-filling rate. Proteomic analysis during the early ripening stage of rice grains from two cultivars that possess contrasting phenotypes in grain-filling rates was performed to identify proteins associated with high grain-filling rates. Two hundred and nineteen differentially expressed proteins (DEPs) were identified from the grain of two selected cultivars. We observed six more abundant enzymes involved in starch and sucrose metabolism during rice grain filling in the high grain-filling rate cultivar X42. Gene ontology (GO) and the Kyoto Encyclopedia of Genes and Genomes (KEGG) analysis revealed that most of the identified DEPs during grain filling were implicated in physiological and biochemical processes. These processes include carbohydrate metabolism, energy metabolism, secondary metabolites metabolism, and amino acids metabolism. Besides, most of those identified DEPs are differentially expressed in the two rice cultivars during grain filling. These findings indicate the essential roles of DEPs in rice grain development. During the grain-filling stage, starch, sucrose, fatty acids, and amino acids biosynthesis were more active and their metabolisms were also significantly enriched. Protein–protein interactions indicate the implication of proteins in several biological processes, for instance, carbohydrate metabolism, fatty acid metabolism, energy metabolism, and secondary metabolites biosynthesis. Data from our study provided valuable information about carbohydrate and amino acids biosynthesis, transport, and their metabolism in two genotypically grain filling.

语种： 英文

作者： Chen, Jiana;Abou-Elwafa, Salah Fatouh;Huang, Min

期刊： Journal of Cleaner Production,2022年371:133627 ISSN：0959-6526

通讯作者： Salah Fatouh Abou-Elwafa<&wdkj&>Min Huang

作者机构： [Chen, Jiana; Huang, Min] Hunan Agr Univ, Key Lab Minist Educ Crop Physiol & Mol Biol, Rice & Prod Ecophysiol, Changsha 410128, Peoples R China.;[Abou-Elwafa, Salah Fatouh] Assiut Univ, Fac Agr, Agron Dept, Assiut, Egypt.

通讯机构： [Salah Fatouh Abou-Elwafa] A;[Min Huang] R;Rice and Product Ecophysiology, Key Laboratory of Ministry of Education for Crop Physiology and Molecular Biology, Hunan Agricultural University, Changsha, 410128, China<&wdkj&>Agronomy Department, Faculty of Agriculture, Assiut University, Assiut, Egypt

关键词： Crop production;Energy;Energy output;Energy input;Sustainable agriculture

摘要： This study analyzes dynamic changes in fossil energy input, energy output and fossil energy use efficiency in crop production in Hunan province, China, from 2010 to 2019 to determine the factors contributing to fossil energy use efficiency in crop production. The results showed that energy input decreased from 19.98 to 18.13 GJ ha-1 from 2010 to 2019, whereas energy output increased from 64.57 to 69.57 GJ ha-1. Energy use efficiency was estimated at 3.23 in 2010 and increased to 3.84 in 2019. The application of fertilizers (nitrogen and phosphorus) and pesticides was decreased, while the application of compound fertilizers was increased from 1.00 to 1.43 GJ ha-1 with a steady energy input during the study period. The yield of advantageous industry crops in Hunan province (cereals, oil-bearing crops, vegetables and fruits) was increased, while other crops (fiber crops, beans, sugarcane, tubers, tobacco and cotton) showed an indiscernible pattern. Our results indicate that developing countries need to promote the production and application of compound fertilizers to reduce energy input, develop competitive industries to increase energy output, adopt policies to optimize crop production structure and establish sustainable agricultural production systems.

语种： 英文

作者： 赵春容;范龙;陈佳娜;曹放波;尹小红;...

期刊： 杂交水稻,2022年37(4):115-120 ISSN：1005-3956

作者机构： [赵春容; 范龙; 陈佳娜; 曹放波; 尹小红; 黄敏] 湖南农业大学作物生理与分子生物学教育部重点实验室

关键词： 杂交水稻;生物炭;氮肥;产量

摘要： 2016-2017年,以杂交中籼稻品种Y两优1号和珞优9348为材料进行大田试验,研究生物炭施用(C0:0 t/hm~2、 C1:20 t/hm~2)对不同氮肥水平(N0:0 kg/hm~2、N1:90 kg/hm~2、N2:150 kg/hm~2)下杂交中籼稻的产量、产量构成、干物质和收获指数的影响。结果表明,施用生物炭对杂交中籼稻产量、单位面积穗数和每穗粒数没有产生明显影响,但在一定程度上提高了结实率、千粒重、齐穗期或成熟期地上部干物质量,而明显降低了收获指数。增施氮肥对杂交中籼稻增产显著,有利于提高单位面积有效穗数、每穗粒数、千粒重、齐穗期和成熟期地上部干物质量,而不利于提高结实率和收获指数。

语种： 中文

作者： Huang, Min;Liu, Yu;Cao, Fangbo;Chen, Jiana

期刊： Journal of Soil Science and Plant Nutrition,2022年22(1):1052-1059 ISSN：0718-9508

通讯作者： Huang, M.

作者机构： Rice and Product Ecophysiology, Key Laboratory of Ministry of Education for Crop Physiology and Molecular Biology, Hunan Agricultural University, Changsha, 410128, China

通讯机构： Rice and Product Ecophysiology, Key Laboratory of Ministry of Education for Crop Physiology and Molecular Biology, Hunan Agricultural University, Changsha, China

关键词： Crop N utilization;Rice;Soil N mineralization;Yield

摘要： The aim of this study was to determine the effects of past N fertilizations on soil N mineralization and crop yield formation in the succeeding season in a rice paddy. A field experiment was conducted to compare soil N mineralization and yield attributes of the succeeding crop in a rice paddy following four N application rates (0, 50, 100, and 200 kg N ha−1) during the previous six consecutive crop seasons. Results showed that soil N mineralization potential and maximum and mean N mineralization rates increased with the increase of rates of N applied in the previous seasons, with increases by 14–30% at the N rate of 200 kg N ha−1. Total N uptake by the succeeding crop was significantly and positively related to soil N mineralization potential and maximum and mean N mineralization rates, showing determination coefficients of 0.701–0.729. There was a significant negative relationship between internal N-use efficiency and total N uptake in the succeeding crop; namely, internal N-use efficiency for biomass production decreased by 4 g g−1 for each 1 g m−2 increase in total N uptake. The previous six seasons of N fertilizer applications did not significantly affect grain yield, yield components, total biomass production, and harvest index of the succeeding crop. These results indicate that past N applications can accelerate soil N mineralization and consequently lead to a partial increase in total N uptake by the succeeding crop, but the subsequent crop’s grain yield is not necessarily affected because the increased total N uptake can be offset by the decrease in internal N-use efficiency for biomass production. The finding of this study highlights the need to fully consider soil nutrient supply and crop nutrient-use efficiency when developing new nutrient management practices for rice production. © 2021, The Author(s) under exclusive licence to Sociedad Chilena de la Ciencia del Suelo.

语种： 英文

作者： Ali, Izhar;Iqbal, Anas;Ullah, Saif;Muhammad, Ihsan;Yuan, Pengli;...

期刊： Foods,2022年11(5) ISSN：2304-8158

通讯作者： Jiang, LG

作者机构： [Zhao, Quan; Zhang, Hua; Yuan, Pengli; Gu, Minghua; Liang, He; Ullah, Saif; Muhammad, Ihsan; Ali, Izhar; Jiang, Ligeng; Jiang, LG] Guangxi Univ, Coll Agr, Nanning 530004, Peoples R China.;[Iqbal, Anas] Guangxi Univ, Coll Life Sci & Technol, Nanning 530004, Peoples R China.;[Yang, Mei] Guangxi Univ, Coll Forestry, Nanning 530004, Peoples R China.;[Huang, Min] Hunan Agr Univ, Coll Agron, Crop & Environm Res Ctr, Changsha 410128, Hunan, Peoples R China.

通讯机构： [Jiang, LG ] G;Guangxi Univ, Coll Agr, Nanning 530004, Peoples R China.

关键词： Biochar;Rice;Rice milling and appearance quality;RVA profile characteristics

摘要： Improving rice production in modern agriculture relies heavily on the overuse of chemical fertilizer, which adversely affects grain quality. Biochar (BC) application is well known for enhancing rice yield under reduced nitrogen (N) application. Therefore, we conducted a two-year field experiment in 2019 and 2020 to evaluate RVA profile characteristics, grain milling, and appearance qualities under four BC rates (0, 10, 20, 30 t ha−1 ) in combination with two N levels (135 and 180 kg ha−1 ). The results showed that BC at 30 t ha−1 along with 135 kg N ha−1 improved rapid visco-analyzer (RVA) profile attributes, including peak viscosity (4081.3), trough viscosity (3168.0), break down (913.3), final viscosity (5135.7), and set back (1967.7). Grain yield, grain rain length, milled rice rate, percent grains with chalkiness, amylose, and starch content were improved by 27%, 23%, 37%, 24%, 14%, and 8%, respectively, in the plots treated with the combination of 30 t BC ha−1 and 180 kg N ha−1 . A positive coefficient of correlation was observed in RVA profile, milling, and apparent quality of rice with soil properties. These results suggested that BC at 20 to 30 t ha−1 in combination with 135 kg N ha−1 is a promising option for enhancing grain yield, RVA profile, appearance, and milling quality. © 2022 by the authors. Licensee MDPI, Basel, Switzerland.

语种： 英文

作者： Li, Chao;Zhao, Yang;Cheng, Kaikai;Zhou, Junyu;Xiao, Xiaoping;...

期刊： Agronomy,2022年12(9):2209- ISSN：2073-4395

通讯作者： Min Huang

作者机构： [Li, Chao; Huang, Min] Hunan Agr Univ, Minist Educt Crop Physiol & Mol Biol, Rice & Prod Ecophysiol, Key Lab, Changsha 410128, Peoples R China.;[Tang, Haiming; Xiao, Xiaoping; Li, Chao; Cheng, Kaikai; Zhou, Junyu] Hunan Acad Agr Sci, Soil & Fertilizer Inst, Changsha 410125, Peoples R China.;[Zhao, Yang] Hunan Acad Agr Sci, Rice Res Inst, Changsha 410125, Peoples R China.;[Iqbal, Anas] South China Agr Univ, Coll Agr, State Key Lab Conservat & Utilizat Agrobioresouec, Guangzhou 510642, Peoples R China.

通讯机构： [Min Huang] R;Rice and Product Ecophysiology, Key Laboratory of Ministry of Eduction for Crop Physiology and Molecular Biology, Hunan Agricultural University, Changsha 410128, China<&wdkj&>Author to whom correspondence should be addressed.

关键词： rape-rice;flooding;earthworm;field margin size;rotary tillage

摘要： Field margin (FM) provides refuges for earthworm survival in rape-rice system after flooding, while the effects of FM with different size on earthworm in arable field (AF) is unclear. In this study, we investigated the effects of different FM sizes, a conventional size (FM I) and three expanding sizes (FM II, FM III, FM IV), on earthworm population characteristics in FM and AF. The results showed that the mean abundance of earthworm under the expanding sizes at 1 day and 60 day of flooding after rape harvest was 16.5 and 20.2 times higher than that of FM I, respectively. After stopping flooding, juveniles first migrated from FM to AF, whereas more than half of them were killed by subsequent rotary tillage, and the mortality decreased with expanding FM size. Subsequently, expanding FM sizes promoted earthworm to distribute evenly through the AF at faster speeds. At rape maturity, the mean abundance and total biomass of earthworm of AF under expanding FM sizes were significantly greater than that of FM I, and this positive effect increased with expanding FM size. The results indicated that expanding FM size can mitigate the hazard of rotary tillage to earthworm and promote rapid recovery of earthworm population in AF.

语种： 英文