贵州野生匍匐翦股颖结实特性研究

Research on Seed Production Characteristics of Wild Creeping Bentgrass in Guizhou

观察了匍匐翦股颖的结实特性。在田间栽培条件下,匍匐翦股颖一般5月初开始抽穗,7月初结束;5月中旬开始开花,7月底结束。群体抽穗的时间不集中(58d),开花时间也不集中(72d)。自交结实性差,不同时期的群体抽穗率和开花百分率不同。结实率与群体抽穗率,群体开花率均为正相关。探讨了结实率低下的原因,主要与生态因素结实花在穗上分布部位以及单株间结实性不一致相关。

Observe the seed production characteristics of creeping bentgrass. Under the conditions of being cultivated on the farm, creeping bentgrass began head sprouting in early May and end during the first part of July. The period of head sprouting of the population of the grass is not concentrated (58 days) and the period of blooming is also not concentrated (72 days). The head sprouting abilities are very poor and the sprouting rates of populations and the blooming rates of populations grown at different times differ. There is a positive correlation between the head sprouting with the seed bearing rates and the percentage of the population that blooms. Some of the seed bearing and head sprouting between single stubs did not correspond mainly due to ecological factors.