论文部分内容阅读
１９９３～１９９５年在河南卢氏种子园作了授粉试验，分析了不同授粉试验的授粉效率，证实在油松雌球花授粉期内，最先到达珠被臂的花粉，具有进入珠孔和珠心的优先权；在花芽绽开后第１～４ｄ为雌球花的最适可授期，其中又以第２～３ｄ的授粉效率最高；在可授期内重复授粉，对提高授粉效率和增加球果中饱满种子数量的效果不明显；一个授粉袋一次授粉用量以０２ｍＬ为宜，小于０１ｍＬ时授粉效率明显下降，大于０２ｍＬ也不能增加球果中的饱满种子数；当交配设计的亲本花粉缺乏时，可用死花粉或滑石粉与新鲜花粉以１∶１的比例混合使用。本文还对各种授粉试验的授粉效率，开花同步指数估算时加权植的确定，及其加权后同步指数的变化作了初步讨论。
From 1993 to 1995, pollination experiments were conducted in Lushi Seed Orchard in Henan Province. The pollination efficiency of different pollination experiments was analyzed. It was confirmed that pollen, The priority of the heart; 1 ~ 4d after flower buds are the most suitable for the pollination of female flowers, of which the second to 3d pollination efficiency is the highest; pollination can be repeated within the allowable period, to improve pollination efficiency and increase Cone fruit full seed number effect is not obvious; pollination bag a pollination amount of 0 2mL is appropriate, less than 0 1mL pollination efficiency decreased significantly, greater than 0 2mL can not increase the full seed in the cones; Mating design of the parental pollen lack of available dead pollen or talc and fresh pollen mixed 1: 1 ratio. The paper also discussed the pollination efficiency of various pollination experiments, the determination of weighted planting when flowering synchronization index was estimated, and the change of the weighted synchronization index.