摘要
用地理播种法研究了１５个早熟大豆品种生育期的表现。试验表明，相同品种在不同环境下生育期表现不同。从低纬度地区到高纬度地区，生育期逐渐延长。由于光温综合作用的结果，生育结构发生“前延后促”现象。根据出苗——始花变异率，可将供试品种分为温敏型品种和光敏型品种。极早熟类型品种一般为温敏型，中熟类型品种为光敏型，早熟类型品种兼两种类型。早熟大豆始花——成熟日数与全生育期的相关系数大于出苗——始花和全育期的相关系数。
15 early-maturing Varieties were planted in six regions study the expressions of their characters.The results indicated that the same Varieties in the growth periods expressions with different ecological cenditions.Generally,the gvoewth periods of soybean longthened along with up of the latitude,in Which the earlier stage (the days from emergence to flowering) lengthened and the later stage (the days from flowering to maturing )Shortened. According to the variation rate on the days from emergence to flowering.Varieties were divided into two types :Sensitiue to day lengeth and sensitiue to temperature .Most of the super-early-maturing type varieties were sensitive to temperature.Most of the micldle-maturing ones to day length,and the early-maturing type Varieties belonged to both. There was higher correlation between the days from flowering to maturing and grewth period than that between the days from emergence to flowering and grewth period.
关键词
早熟大豆
生育期
生育结构
相关性
Early-maturing Soybean,Growth Period .Growth period Structure,Correlation.
