热带亚热带植物学报2009，Vol.17Issue(6)：602-605,4.
橡胶树新品种云研77-2和云研77-4的细胞学鉴定及育种过程
Cytological Identification and Breeding Course of Hevea 'Yunyan 77-2' and 'Yunyan 77-4'
摘要
Abstract
The chromosomes of two new varietiese 'Yunyan 77-2' and 'Yunyan 77-4' and their parents 'PR107'and 'GT1'were observed.and the breeding process of the new varieties was summarized.The results showed that the chromosome number of 'PR107'and GT1'is 2n=2x=36.whereas 2n=3x=54 for 'Yunyan 77-2' and 'Yunyan 77-4'.'Yunyan 77-2' and 'Yunyan 77-4' are triploids.It is an effective way to breed new Hevea varieties by establishing a pollination garden of special parents,setting reasonable screening criteria and selecting the polyploid seedlings under stress circumstances.关键词
巴西橡胶/三倍体/细胞学观察/育种/实生筛选Key words
Hevea brasiliensis/ Triploid/ Cytological observation/ Breeding/ Seedling screening分类
农业科技引用本文复制引用
李惠波,周堂英,宁连云,李国华..橡胶树新品种云研77-2和云研77-4的细胞学鉴定及育种过程[J].热带亚热带植物学报,2009,17(6):602-605,4.基金项目
云南省青年基金项目(2007204)资助 （2007204）
