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利用包括“短青春期”在内的 8个大豆品种类型 ,通过分期播种观察大豆出苗至开花天数与开花至成熟天数对不同光 (温 )条件的反应 ,以进一步明确大豆“短青春期”品种生育期性状的光 (温 )敏感性特征。结果表明 :“短青春期”品种中豆 2 4和巨丰出苗至开花天数播季敏感性与春大豆泰兴黑豆和矮脚早相似 ,出苗至开花天数短 ,对播季不敏感 ;但开花至成熟天数长 ,对播季敏感 ,与春大豆品种明显不同。秋大豆丽秋 2号出苗至开花天数很长 ,对播季非常敏感 ,开花至成熟天数较短 ,播季敏感性仅较春大豆泰兴黑豆和矮脚早略高。“长青春期”类型 F90 -7354出苗至开花天数和开花至成熟天数比夏大豆晚熟类型略短 ,敏感性略弱。中豆 2 4和巨丰生殖生长期播期敏感性明显大于营养生长期播期敏感性 ,其比值分别为 5.79和 5.1 8,高于其它类型品种
The responses of different light (temperature) conditions to different light (temperature) conditions were observed by staging sowing dates of soybean emergence to flowering to mature days with the help of 8 soybean varieties including “short puberty” to further clarify the growth period of “short puberty” Light (temperature) sensitivity of traits. The results showed that the sensitivities of Zhongzhong 2 4 and Jufeng to the days of flowering were the same as those of spring soybean Taixing black beans and bantam, the days from emergence to flowering were short and insensitive to seeding season; however, flowering to maturity Long days, sensitive to seasons, significantly different from the spring soybean varieties. Autumn soybean Liqiu 2 emergence to flowering days is very long, very sensitive to the sowing season, flowering to mature days shorter, seasons sensitive only spring soybean Taichung black beans and bantam slightly higher. The “adolescent” type F90 -7354 had slightly shorter days of emergence and flowering to ripening days than the summer soybean late maturing type, and its sensitivity was slightly weaker. The sensitivity of sowing dates of Zhongdu 2 4 and Jufeng during reproductive growth stage was significantly greater than that of sowing dates during vegetative growth stage, with the ratios of 5.79 and 5.18, respectively, higher than other varieties