当前位置: 首页 > 文章 > Responses of yield characteristics to high temperature during flowering stage in hybrid rice Guodao 6. 水稻科学(英文版) 2008,15 (3) 215-222
Position: Home > Articles > Responses of yield characteristics to high temperature during flowering stage in hybrid rice Guodao 6. Rice Science 2008,15 (3) 215-222

Responses of yield characteristics to high temperature during flowering stage in hybrid rice Guodao 6.

作  者:
Fu GuanFu;Tao LongXing;Song Jian;Wang Xi;Cao LiYong;Cheng ShiHua
单  位:
State Key Laboratory of Rice Biology; China National Rice Research Institute; China; Hangzhou 310006
关键词:
crop yield;filling period;flowering;hybrids;rice;seed set;seeds;spikelets;temperature;yield components;Oryza;Oryza sativa
摘  要:
By sowing at different dates during 2005 and 2006 both in paddy fields and greenhouse, a super hybrid rice combination Guodao 6 and a conventional hybrid rice combination Xieyou 46 (as control) were used to analyze the differences in heat injury index, seed setting rate, grain yield and its components. Guodao 6 showed more stable yield and spikelet fertility, and lower heat injury index than Xieyou 46. Further studies indicated that the spikelet sterility is positively correlated with the average daily temperature and the maximum daily temperature, with the coefficients of 0.8604 and 0.9850 (P<0.05) respectively in Guodao 6. The effect of high temperature injury on seed setting caused by maximum daily temperature was lower than that by average daily temperature during the grain filling stage.

相似文章

计量
文章访问数: 9
HTML全文浏览量: 0
PDF下载量: 0

所属期刊

推荐期刊