摘要
对87份云南割手密无性系进行了染色体数目和植物学性状的观察,发现云南割手密染色体数目有2n=60、64、70、80四种类型。讨论了染色体倍性与植物学性状及地理分布的关系。
Chromosome counts and morphological observation on 87 clones of Saccharum spontaneum collected from Yunnan Province were carried out. It revealed four chromosome types: 2n= 60, 64, 70, 80. Most of the S. spontaneum (71 clones)have 2n= 80, some (8clones) have 2n=64. Individuals with 2n= 60 and 70. The geographical distribution of the chromosome number in Yunnan was discussed.
基金
国家自然科学基金
关键词
甘蔗
割手密
染色体
地理分布
云南
Saccharum spontaneum
chromosome
geographical distribution
Yunnan