杉木种子园促花试验

为筛选出杉木种子园最佳的促花方法,为杉木生产提供更多的优良种子,设拉枝法、断顶法、环扎法、环割法4个处理,1个对照,重复4次。结果表明:4种处理方法的球花形成值均明显高于对照值,其中以环扎法最佳,球花形成值高于对照值的1.15倍;环割法、拉枝法及断顶法3个处理值分别高于对照值的0.60、0.36、0.35倍;从雄、雌球花形成分析看,环扎法的雄球花形成值高于对照1.64倍,而雌球花形成值仅高于对照0.65倍;环割法、断顶法的雌球花形成值分别高于对照的0.82、0.71倍。

Study on Flower Promotion in Cunninghamia lanceolata Seed Orchard

In order to screen out the best flower-promoting method of Cunninghamia lanceolata in seed orchard, more good seedlings are provided for the forestation of Cunninghamia lanceolata . Theexperiment consisted of four treatment groups: pull-up method group, broken-top method group, cerclage method group, and ringing method group, and one control group. Each group repeat 4 times. The results show: The formation value of Cunninghamia lanceolata bulbs in four treatment groups were significantly higher than the control group. The cerclage method group is the best, the value is 1.15 times higher than the control group;the values of ring cutting method group, pulling method group and broken-top method group are 0.6, 0.36, and 0.35 times higher than the value of control group. From the formation of the number of female and female bulbs analysis, the formation value of male bulbs in cerclage group is 1.64 times higher than control group, while the female flower formation value is only 0.65 times higher. The formation value of female bulbs in the ringing method group and the broken top method group are 0.82 and 0.71 times higher than the value of control.