亚比棉茎叶茸毛性状研究  

Study on biological characters of pubescence of Gossypium arboreum bickii

作　　者：李毳[1] 柴宝峰[2] 

机构地区：[1]山西财经大学环境经济系,太原030012 [2]山西大学黄土高原研究所,太原030006

出　　处：《中国生态农业学报》2004年第2期58-60,共3页Chinese Journal of Eco-Agriculture

基　　金：山西省青年基金项目 (2 0 0 0 10 3 8);山西省出国留学人员基金共同资助

摘　　要：实验研究人工合成异源 4倍体亚比棉茸毛性状、形态、密度和性状遗传结果表明 ,亚比棉茎、叶茸毛主要着生于其脉上 ,中脉、侧脉至小支脉茸毛密度依次呈递减趋势 ,且其茸毛茎 >叶 >花器官。分布密度茎部为 12 .30根 /mm2 ,叶部为 10 .38根 /mm2 。茸毛复毛数量远大于单毛 ,分枝一般 6～ 7根 ,多者达 15根以上 ,最长可达 6 2 0 μm。亚比棉茸毛优良性状系其父本野生比克氏棉多毛抗虫优良性状的转育和表达。The biological characters,morphology,density and structure of pubescence of a new cotton species named heterotetraploid Gossypium arboreum bickii[A 2A 2G 1G 1]are studied in this paper. The results indicate that the pubescence of stem and leave are mainly distributed on the vein,and the densities of the pubescence show a decreasing tendency from middle vein,side vein to branch vein. Moreover,pubescences on stem are more than those on leaves,those on leaves are more than those on flower apparatus,the average density on stem is 12.30 per mm2,and that on leaves is 10.38 per mm2;the pubescences include mono-pubescence and multi-pubescence. The amount of multi-pubescences is more than that of mono-pubescences. Generally,there are 6～7 pubescences per multi-pubescence,even more than 15. The length of pubescence is up to 620μm. The longer pubescence in stem and leaves,as the excellent trait of anti-insect,is inherited and expressed from the wild G.bickii as a father of G.arboreum bickii.

关 键 词：亚比棉 茎 叶 茸毛性状 抗虫性状 茸毛形态 茸毛密度 遗传 

分 类 号：S562[农业科学—作物学]