摘要
通过分期播种的方法 ,对 3个不同类型小麦品种的生育特征、穗分化进程及受冻害情况等进行了系统观察和研究。结果表明 ,春性越强的小麦品种 ,播种越早 ,越冬前发育速度越快 ,达到的幼穗发育阶段越高 ,越冬期间受冻越严重。以二棱期越冬 ,小麦受冻的危险较小。据此 。
The development characteristics, spike differentiation processes and winter killing of three varieties of wheat were studied in the different sowing stages. The results showed that the stronger the springness of wheat was in earlier sowing stages, the quicker it developed and the higher spike differentiation phases it reached before the over wintering and the more serious winter killing it suffered from in winter. If it was at the double ridge phase during the over wintering, the risk of being winter killed was lower. By these, the safe sowing time of different wheat were put forward.
出处
《麦类作物学报》
CAS
CSCD
2002年第2期46-50,共5页
Journal of Triticeae Crops
基金
河南省教委科技攻关项目 (19992 10 0 3 0 )
