论文部分内容阅读
青桃盛果期,特别中庸偏旺的植株,单、复花芽果枝数大体均等,复花芽果枝以其复芽个体较大,枝条较粗而往往表现为优势。然而笔者于1974—1979年观察了青桃树以单、复花芽结果对盛果初期的影响,结果表明:利用单花芽结果,控制了强旺枝和结果部位,使果枝分布均匀,树势稳定,尤其果枝数、花芽数、单株产量等的变动趋势与年度增加无关,r为:-0.2899、0.0620(单、复花芽果枝数分别占总果枝数的35.1％和16.7％),-0.3830、-0.1804(单、复花芽朵数分别占总花芽朵数的44.5％和13.4％),0.4093(单株年产量为179.4公斤,从而延长了盛果期;利用复花芽结果却相反,促进树势极性生长,旺枝增强,果枝外移,内膛空虚,尤其果枝数、花芽数、单株产量等的变动趋势随年度增加而呈显著与极显著负相关,r为:-0.8938~(**)、-0.9818~(**)(单、复花芽果枝数分别占总果枝数的27.1％和21.1％),-0.953~(**)、-0.8908~(**)(单、复花芽朵数占总花芽朵数的35.3％和6.8％).-0.8853~(**)(单株产量较单花芽结果减产19.4％),从而明显缩短盛果期。
Peach fruit full of fruit, particularly moderate in the plants, single, complex flower buds roughly equal number of branches, flower buds fruiting branch of its larger individual buds, branches tend to show the advantages of coarse. However, in 1974-1979, the author observed the effect of single and complex flower buds on the early stage of Shengguo fruit. The results showed that using the single flower buds, the branches and the fruit were controlled and the fruit branches were distributed evenly and the tree vigor was stable (R = -0.2899, 0.0620, respectively. The number of fruiting branches in single and complex flower buds accounted for 35.1% and 16.7% of the total number of branches, respectively), 0.3830, -0.1804 (single, complex flower buds accounted for 44.5% and 13.4% of the total number of flower buds), 0.4093 (annual output of 179.4 kg per plant, thereby extending the full fruit period; the use of complex flower buds, on the contrary, the promotion of tree vigor The trend of polar growth, vigorous growth, fruiting branches moving outward, emptiness, especially the number of fruit branches, the number of flower buds, the yield per plant and other changes with the annual increase was significantly and extremely significant negative correlation, r = -0.8938 ~ (* *), -0.9818 ~ (**) (single and complex flower buds accounted for 27.1% and 21.1% of the total number of fruit branches respectively), 0.953 ~ (**) and -0.8908 ~ (**) The number of flowers accounted for 35.3% and 6.8% of the total number of flower buds) .- 0.8853 ~ (**) (yield per plant than the single flower bud result of 19.4%), which significantly shorten the full fruit period.