作物学报2000，Vol.26Issue(4)：399-405,7.
小麦花后高温对籽粒胚乳细胞发育及粒重的影响
Effect of High Temperature after Anthesis on Endosperm Cell Development and Grain Weight in Wheat
封超年 1郭文善 1施劲松 1彭永欣 1朱新开1
作者信息
- 1. 扬州大学农学院,江苏,扬州,225009
- 折叠
摘要
Abstract
The pot experiment was carried out from 1993 to 1995 in Yangzhou to study the influence of high temperature after anthesis on endosperm cell development and grain growth in wheat(T．aestivum L．CV．Yangmai 5 and PH85-4)．The main results were as follows．The dffect of high temperature after anthesis on grain weight was：treatment 20th～22nd day〉12th～14th day〉5th～7th day〉lst一3rd day>28th一30th day>CK．The endosperm cellprioliferation rate was increased during a short period after high temperature，but the proliferationduration was signficantly shortened，which resulted in the decrease of the maximum endospermcell aumber and the decline of grain weight The high temperature in spike or leaf parts couldsignificantly affect grain weight and spikes was more sensitive to high temperature than leaves．The order of grain endosperm cell number and weight in different positions was not changedunder high temperature treatment，but the difference was enlarged．关键词
小麦/高温/粒重/胚乳细胞Key words
Wheat/High temperature/Grain weight/Endosperm cell number分类
农业科技引用本文复制引用
封超年,郭文善,施劲松,彭永欣,朱新开..小麦花后高温对籽粒胚乳细胞发育及粒重的影响[J].作物学报,2000,26(4):399-405,7.
