湖南农业大学学报（自然科学版）2011，Vol.37Issue(1)：1-6,6.DOI:10.3724/SP.J.1238.2011.00001
水稻光能辐射利用率与产量的关系
Relationship between solar radiation use efficiency and rice grain yield
摘要
Abstract
Three types of rice varieties including supper hybrid rice, hybrid rice and conventional rice were used to explore the relationships between radiation use efficiency (RUE) and grain yield.The results showed as follows.Grain yield of super hybrid rice was higher than hybrid rice and conventional rice on the same sowing date, and there was a significant difference among three types of rice varieties sowing May 22.And grain yield sowed in May 22 was higher than sowed in July 17.There was higher grain yield of super hybrid rice because of high spikelet numbers.Grain yield sowed in May 22 was higher than sowed in July 17.There was higher radiation use efficiency of super hybrid rice.There was a significant negative correlation between RUE and the filled ratio during rice growth and development sowing May 22, and a significant positive correlation between RUE and 1 000-grain weight from booting to head-flowering, but RUE was not related to the other indices, including the number of spikelet, grain yield and harvest index; there was a significant negative correlation between RUE and the filled ratio on the MT and FL sowing July 17, and were no significant trend among RUE and the other indices, such as the number of spikelet, grain yield and harvest index.关键词
水稻/播期/光能辐射利用率/产量Key words
rice/ sowing date/ solar radiation use efficiency/ yield分类
农业科技引用本文复制引用
李迪秦,唐启源,秦建权,张运波,杨胜海,陈立军,李小勇..水稻光能辐射利用率与产量的关系[J].湖南农业大学学报（自然科学版）,2011,37(1):1-6,6.基金项目
国家自然科学基金项目(30671219) （30671219）
长沙市科技局项(k0803115-21) （k0803115-21）
