不同品种的叶龄指数所对应的雄、雌穗分化各时期是基本一致的。
Leaf number index right should the spike differentiation all stages within different variety were very similar.
1997年在分蘖中、后期持续高温，有效分蘖终止期和最高分蘖期向后延迟，叶龄指数增加。
In 1997, the valid tiller ending phase and maximum tiller phase delayed and leaf ages index increased in medium and late tillering phase under high_temperature.
以12个玉米品种为材料，在春播与夏播条件下进行玉米叶龄指数与穗分化期回归关系的试验研究。
With 12 maize varieties used as materials, the regression relationship between the leaf number index and spike differentiation were studied under the spring and summer sowing.
以12个玉米品种为材料，在春播与夏播条件下进行玉米叶龄指数与穗分化期回归关系的试验研究。
With 12 maize varieties used as materials, the regression relationship between the leaf number index and spike differentiation were studied under the spring and summer sowing.
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