期刊论文

Effects of Three Chemical Regulators on Source-sink Relationship of Double-cropping Super Rice in Southern Hunan

中文

杂交水稻

1005-3956

2021

36

01

93-100

10.16267/j.cnki.1005-3956.20200303.063

国家重点研发计划“粮食丰产增效科技创新”重点专项（2017YFD0301501,2018YFD0301005）；

本校为第一机构

为筛选适宜湘南双季超级稻的化学调控剂,以中嘉早17和盛泰优018为材料,比较研究了3种化学调控剂（壮谷饱、壳寡糖、胺鲜酯）对湘南双季超级稻产量形成的源库关系的影响。结果表明,3种化学调控剂中,胺鲜酯增源效果最好,其各时期叶面积指数、高效叶面积指数、叶片SPAD值和干物质积累量均显著高于对照（清水）,壮谷饱也有较好的增源效果,而壳寡糖增源效果不明显;胺鲜酯扩库效果最好,其颖花数、有效穗数和结实率显著提高;与对照相比,胺鲜酯处理早晚2季总产量提高13.81%,壮谷饱处理增产8.86%,壳寡糖增产效果不明显;壮谷饱对提高千粒重的效果最好;胺鲜酯处理的粒叶比、叶片与茎鞘物质输出率较高,壮谷饱...

In order to screen the optimal chemical regulators for double-cropping rice in southern Hunan, the effects of three new types of chemical regulators (Zhuanggubao, C1; chitooligosaccharide, C2; prochlorazate, C3) on source-sink relationship of yield formation of rice were comparatively studied with Zhongjiazao 17 (early rice) and Shengtaiyou 018 (late rice) as the materials. The results showed that among three chemical regulators, C3 had the best effect on increase of source, and its leaf area index (LAI), efficient LAI, leaf SPAD value and dry matter accumulation were significantly higher than...