摘要
研究了１３份贵州苎麻地方品种７个数量性状的遗传变异系数、遗传力和遗传进度，结果显示供试品种部分性状的遗传变异较丰富，预期选择效果较好。遗传相关和通径分析表明，单蔸产量和纤维品质的矛盾主要由茎粗（三季麻）、鲜皮厚度（头麻和二麻）、鲜皮出麻率（头麻和三麻）、有效株率（二麻和三麻）引起。在苎麻丰产优质选择中，以株高、鲜皮厚度、鲜皮出麻率、有效株率相结合间接选择，可望获得理想效果。
The hereditary variation coefficient and capacity and progress of seven quantita-tive characters of thirteen local ramie varieties in Guizhou were analysed.The results showed as follows.The hereditary variation of some characters of tested varieties is abundant. The estimated effect of selection in advance would be available. The contradition between fibre yield per stool and quality are mainly coused by stem diameter,fresh bast thinkness,ratio of fresh bast and effective stool.Selecting indirectly,there would be a ideal effect when combine plant height with bast thinkness and ratio of fresh bast and effective stool to get stools of good fibre quality and high yield.
出处
《贵州农业科学》
CAS
1994年第2期29-33,共5页
Guizhou Agricultural Sciences
关键词
苎麻
品种资源
遗传潜势
ramie
gene resources
hereditary potentiality
Guizhou
