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柳树(Salix L.)是易于杂交的种群.本文是根据1962—1978年进行的S.babylonica,S.matsud-ana,S.pseudo—matsudana,S.psendo-losiogyne,S.glandulosa,S.wilsonii,S.fragilis,S.alba,S.koreensis,S.yunnanensis,S.purpurea,S.rorida,S.mougolica,S.triandra,S.grancilis-tyla,S.leucopithecia,S.paraplesia,S.integra,S.viminalis,S.gilgiana,S.pnerhtisinensis等柳树的种内及种间杂交试验,对其杂交可配性和杂种优势进行了总结和分析.在282个杂交组合中,有200个组合得到杂交种子.F_1当年生长一般都超过垂柳实生苗,具有杂种优势.特别是垂柳、旱柳、白柳种内及种间杂交,F_1生长优势比较突出,平均生长优势都大于1.这类杂交以垂柳为母本的组合生长优势为1.31—1.47,而以旱柳为母本的组合则较低.乔木柳与灌木柳种间杂交,F_1多为负向生长优势.
Willow (Salix L.) is an easy-to-hybrid population.This article is based on S.babylonica, S.matsud-ana, S.pseudo-matsudana, S.psendo-losiogyne, S. glandulosa, S.wilsonii , S. fragilis, S. alba, S. koreensis, S. yunnanensis, S. purpurea, S. rrorida, S. mougolica, S. trindra, S. gancilis-tyla, S. leucopithecia, S. paraplesia, S. integra , S. viminalis, S. gilgiana, S.pnerhtisine and other willows were studied in this study, and their hybridization compatibility and heterosis were summarized and analyzed.Among the 282 crossing combinations, 200 combinations were obtained Hybrid seeds.F_1 generally grew more than the weeping willow seedlings in the year, with heterosis.Especially weeping willow, Salix matsudana, white willow species and interspecific hybridization, F_1 growth more prominent, the average growth advantage is greater than 1. This type of hybrid weeping willow The combination of the female parent and the shrub willow will have the advantage of 1.31-1.47, while the combination of the willow will be lower.