摘要
1983～1985年以“黄壳早”、“芦竹青”、“古巴苎麻”和“武冈红皮种”为材料进行自交,并观测了自交一代的分离和变异情况,研究结果表明:a.根据自交一代的形态分类,可将“芦竹青”繁殖后代分为40个类型,“芦竹青”自交一代的麻骨颜色分离为四种,其分离比例为9.3:4.2:3:0.7,基本符合孟德尔遗传规律;b.个体间产量性状差异很大,株高变冥为0.23～1.68m,茎粗变异为0.48～1.14 cm,有效株变异为1～23株;c.40个类型的纤维细度的变异呈正态分布,变异为1168～1905公支,最细的类型和最粗的类型相差747支上述结果表明:苎麻自交后代的形态性状、产量性状和纤维细度均产生显著的分离和差异。
'Huangkezao', 'Luzhuqing', ' Ramie of Cuba' and 'Wugang Red Skin'were selfcrossed to study progeny variation and segregation from 1983 to 1985.The results are as follows: 1. Luzhuqing's progeny is able to be classifiedinto 40 types according to their morphologic characters. The color of stalk'sxylon core segregates inso 4 kinds, and the segregation ratio is 9.3=4.2:3.0:0.7, which is basically in accordance with Mondel's Genetics Law. 2. Theyieldc haracters varies markedly with each other among the self-bred progeny fromone variety. The variation range of plant height, stem diameter and effectivestem number are 0.23~1.68 meters, 0.48~1.14 centimeters and 1~23 stalksrespectively. 3. The variation of fiber fineness of the 40 types appears to benormally distributed and the variation range is l 158~1905 counts. These results show a wide-ranging variation and a notable segregation oframie self-bred progeny in the characters of morphology, agronomy and fiberfineness.
关键词
苎麻
自交
分离
变异
Boehmeria nivea
Inbreeding
Isolation
Variation (biology)
