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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。
In this paper, the number of female flowers in the current year and the number of the current year; the number of female flowers in the current year, the number of the same year and the second year of the next spring, the number of annual cones; the number of spring and fall annual number of cones; the number of cones in spring and the number of cones in the second year The number of fall and mature cones in these four cases before and after the flower rate, fruit drop rate and correlation were studied for the pine seeds six and a half years ahead of the prediction provides the basis and mathematical model.