The distribution of flowering phase of plant in grassland community was studied by localized observation on phenological phase of species.
通过草地群落物种物候期定位观测，研究了植物种的花期分布规律。
The preliminary results are as follows:1. When top cluster leaves are treated by exogenous ethrel, leaves in different phenological-phase have no obvious effect on injuring;
初步研究成果如下：1。不对顶蓬叶外施乙烯利时，叶片物候期对伤害结果没有显著影响；
The preliminary results are as follows:1. When top cluster leaves are treated by exogenous ethrel, leaves in different phenological-phase have no obvious effect on injuring;
初步研究成果如下：1。不对顶蓬叶外施乙烯利时，叶片物候期对伤害结果没有显著影响；
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