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种子园内的花粉密度是影响种子产量和质 量的重要因素。为掌握种子园初果期的花粉密 度及其变化规律,花粉密度与球果出籽率的关 系,人工辅助授粉对种子生产的影响,进而为 种子园的花粉管理提供依据,我们从1982至 1985年,对东陵油松无性系种子园的花粉密度 进行了连年测定。1983年和1984年对人工辅助 授粉的增产效果进行了试验。现将试验结果报 告如下:
Pollen density in the seed garden is an important factor that affects seed yield and quality. In order to understand the relationship between the pollen density and its variation during the early fruit stage of seed orchard, the relationship between the pollen density and the seed yield, the effect of artificial pollination on the seed production, and then provide the basis for the pollen management of the seed orchard. From 1982 to 1985 Year, the Dongling clonal seed orchard pollen density for successive years measured. In 1983 and 1984, artificial stimulation of artificial pollination was tested. The test results are reported as follows: