摘要
采用分期播种法，分析了光、温、水等气候因素和红小豆生育期、生育结构及开花结荚的关系。结果表明，随着播期的推迟，全生育日数、播种至出苗日数、出苗至始花日数、始花至终花日数都逐渐缩短，日平均温度的升高是播种至出苗阶段缩短的主要原因；日平均温度升高，光照时数缩短，共同促进了出苗至始花日数的减少；光照时数缩短，使站花至终花日数逐渐缩短。5月29日红小豆单株花朵数、单株结荚数减少除了受播期各生育阶段缩短影响外，晚播花期降雨量减少是又一原因。
The relations between photoperiod, temperature. or rainfall and the development of Adzuki bean were studied by planting Adzuki bean at different stages. The results showed that the growth period,the days from planting to seedling emergence, the days from seedling emergence to blossom and flowering phase were shortened when Adzwki bean was planted later. The higher average temperature per day was the main reason for the decrease of the days from planting to seedling emergence. The higher average temperature per day and the shortened photoperiod caused the days from seedling emergence to blossom to be shortened. The short photoperiod was the main reason for the decrease of the flowering phase. Beacuse each stage was shortened and the rainfall becomes less,the number of flowers and pods per plant was lessened when Adzukibean was planted on May 29.
出处
《山西农业科学》
1997年第3期40-43,共4页
Journal of Shanxi Agricultural Sciences
关键词
红小豆
生育结构
开花结荚
Adzwki bean
Development
Photoperiod
Temperature
Rainfall
