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草业学报  2009 

一年生龙胆属植物的繁殖分配及其花大小、数量的权衡关系研究

, PP. 58-66

Keywords: 繁殖投入,繁殖分配,花大小,花数量,权衡

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Abstract:

对青藏高原东缘高寒草甸一年生龙胆属植物的花期繁殖分配及其花大小与数量间权衡关系的研究发现,1)个体越大,繁殖投入越高;2)繁殖分配与个体大小间无固定的相关模式,表明不同物种对相似环境压力的适应对策不同;3)花大小和总花数均随个体增大而增加,花数量的增加要比花大小的增加更加显著;4)在采用偏相关方法控制植物个体大小后,花大小与花数目之间表现出权衡关系,与理论预测一致。

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