摘要
通过对水稻不同生育时期的光温因子与产量构成因素及产量性状和品质性状的分析结果,发现在温光因子中,移栽期-始穗期日照、始穗期-成熟期积温对水稻的产量性状和品质性状的影响较大;在产量性状中,每穴穗数和结实率是受环境影响较大的性状;在品质性状中,蛋白质含量、垩白粒率、长宽比是受环境影响较大的性状。同时,灌浆结实期高温导致水稻结实率明显下降、千粒重略有提高;蛋白质含量、垩白粒率、长宽比受环境影响最大。
The analysis results of effect of light and temperature factors at different growth stage on yield and quality of rice showed that the illumination from transplanting to initial heading stage and accumulative temperature from initial heading to maturity affected yield and quality of rice greatly. Among yield components, the panicles per hill and kernel set rate were influenced greatly and the protein content, chalky grain rate ratio of grain length to width were affected greatly among quality traits. Meantime, the high temperature at filling stage led to decrease of kernel set rate, but the light increase of 1000-grain weight.
出处
《北方水稻》
CAS
2009年第3期10-12,共3页
North Rice
关键词
光温因子
高温
产量
品质
Temperature and illumination factors
High temperature
Yield
Quality
