期刊论文

Effects of Chemical Regulation on Root,Leaf Physiological Characteristics and Yield of Double-Cropping Rice in Southern Hunan

中文

作物研究

1001-5280

2022

36

3

189-195

10.16848/j.cnki.issn.1001-5280.2022.03.01

本校为第一机构

为探索适宜湘南双季稻的化学调控方式，以中嘉早17和盛泰优018为材料，在湖南衡阳县开展大田试验，研究和比较2种化学调控剂（胺鲜酯、壳寡糖）对湘南双季稻根系特性、叶片生理特性及产量的影响。结果表明：（1）相较于对照（清水）,两种化学调控剂对水稻根干质量和根体积无显著影响；（2）喷施胺鲜酯显著提高了孕穗期—灌浆中期水稻叶片超氧化物歧化酶（SOD）活性，降低了叶片丙二醛（MDA）含量，同时有效降低了生育中后期叶片MDA含量的增长幅度；（3）喷施胺鲜酯可显著提高双季稻产量，两年早稻平均产量为6.56 t/hm~2,比对照增产8.07%;两年晚稻平均产量为7.78 t/hm~2,比对照增产10.20%;增产原...

In order to explore the chemical regulations suitable for double-cropping rice in Southern Hunan,a field experiment was carried out in Hengyang county,Hunan province,using Zhongjiazao 17 and Shengtaiyou 018 as materials,and the effects of two chemical regulation methods(chitooligosaccharide and prochlorazate)on the root characteristics,leaf physiological characteristics and yield of double-cropping rice in Southern Hunan were compared.The results showed that:(1)Compared with the control,the roots dry weight and roots volume of rice treated with prochlorazate increased,and the ratio of root and...