【摘要】 本文对苹果梨、朝鲜洋梨辐射营养后代的短枝型变异进行了研究。研究结果表明:辐射有利于培育短枝型品种。在本试验范围内,辐射处理均有不同程度的矮化,而且与对照差异极显著。朝鲜洋梨较苹果梨对辐射处理更敏感。采用辐射诱变矮化型品种,可在V₁代直接进行选择。更多还原

【Abstract】 In this article,the variation of short-branch type Apple pear and Korean pear(Pyrus communis) induced by γ-ray irradiation was discussed. The results obtained are as follows.(1) In comparing with Apple pear, Korean pear(Pyrus communis)appeared more susceptible to γ-ray treatment.(2) γ-ray irradiation increased the frequency of the short-branch variation.(3) The character of short-branch induced by γ-ray irradiation could be directly introduced to the Ⅴ(vegetative) generation.更多还原