杂交棉F_2代利用研究进展  

Utilization of F_2 Generation Hybrid in Cotton

作　　者：李瑞莲[1] 陈金湘[1] 刘爱玉[1] 

机构地区：[1]湖南农业大学棉花研究所,湖南长沙410128

出　　处：《湖南农业大学学报（自然科学版）》2004年第3期298-302,共5页Journal of Hunan Agricultural University(Natural Sciences)

基　　金：湖南农业大学青年基金资助项目(03QN06)

摘　　要：对杂交棉F2代的产量、品质、抗虫性等方面的利用进行了综述:F2代的产量优势在10%～15%,增产的主要原因是铃数的增加;F2代与F1代相比,纤维品质基本相同,无显著差异;杂交抗虫棉F2代虽然存在抗性分离,但采取一些防治措施可避免棉铃虫的为害.由于F2代在产量、品质和抗虫性方面与其亲本比较具有一定的优势,因此,可以考虑利用.This paper summarizes status and development of utilization researches of F2 generation hybrid of cotton at home and abroad.F2 generation hybrids have advantage in yield of 10%~15%, mainly reason of bolls increasing; The difference of fiber qualities between F1 and F2 was not significant.By adopting some preventive measures, F2 plants can prevent from cotton bollworm although F2 is the generation segregation of resistances in transgenic bollworm-resistant hybrid cotton.In conclusion, heterosis of F2 generation hybrids in yields, quality and worm-resistance presented well than its parent,so the utilization of F2 generation hybrids of cotton is considerable.

关 键 词：棉花 杂种F2代 杂种优势利用 

分 类 号：S562.099[农业科学—作物学]