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为配合马尾松(Pinus massoniana Lamb.)地理种源试验工作的开展,我们拟对马尾松的不同种群进行染色体组型研究,以了解它们之间的异、同,为阐明马尾松种群之间的亲缘关系及育种实践提供参考。现将第一批四个种群的研究结果报道如下: 一、材料和方法马尾松种子采自四川涪陵、南江,湖南靖县和湖北通山。染色体制片是待种子发芽后胚根长至1厘米左右时,用0.5％秋水仙碱溶液预处理12小
In order to cooperate with the Pinus massoniana Lamb. Geographical provenance experiment, we plan to study the genotypes of different populations of Pinus massoniana to understand the differences between them. In order to clarify the relationship between Pinus massoniana Lamb Kinship and breeding practice. Now the first batch of four population results reported as follows: First, materials and methods Masson pine seeds were collected from Sichuan Fuling, Nanjiang, Hunan Jingxian and Hubei Tongshan. Chromosome preparation is to be seed germination radicle growth to about 1 cm, 0.5% colchicine solution pretreatment 12 small