大豆M型雄性不育系测交品种花期特性及调节模式研究

STUDY ON THE CHARACTER AND THE ADJUSTMENT MODEL FOR FLOWERING PERIOD OF THE TEST CROSSING VARIETIES OF SOYBEAN M TYPE MALE STERILE LINE

采用国内外大豆品种 112个与不育系同期夏播 ,观察其花期特性的差别 ;根据不同区域和不同季候生态型的五个父本组品种分期播种试验的结果 ,提出推迟或提前播种的具体模式 ,从而有效地调节跨越南北 2 0个纬度的春、夏大豆父本品种的花期 ,使其与夏播不育系的花期相遇 。

The difference of the character of the flowering period was observed by the summer seeding of 112 soybean varieties and male sterile lines at the same time. The models for delay sowing or earlier sowing were set up according to the results of 5 male parent groups sowed on different time in different areas and climatic ecological type. This models can adjust the flowering period effectively of the spring and the summer soybean varieties spacing over 20 degrees on latitude, and make them to meet with the flowering period of the male sterile lines.