油松前期球果数(以及雌花数)和后期球果数关系的分析

An Analysis on the Relationship between the Number of Pinecones ( as well as Female Flowers) in Their Early and Late Periods

本文对当年雌花数与当年球果数 ;当年雌花数、当年球果数与第二年春季隔年球果数 ;春季隔年球果数与秋季成熟球果数 ;春季当年球果数与第二年秋季成熟球果数这四种情况的前、后期落花率、落果率以及相关性进行了研究 ,为油松种子提前半年和一年半进行预测提供了依据和数学模型。

This paper studied the relationships between the numbers of female flowers and pinecones of the current year;female flowers,pinecones of the current year and the numbers of pinecones of the biennial year in next spring;the numbers of biennial year's pinecones in spring and the numbers of ripened pinecones in autumn;the numbers of the current year's pinecones in spring and the numbers of ripened pinecones in nextautumn.The rates of flower and cones dropping were also studied.Itprovided a basis and mathematics model for the fore- casting of seed yield before half or half and a year.