南方农业学报2012，Vol.43Issue(3)：272-276,5.DOI:10.3969/j:issn.2095-1191.2012.03.272
云南中低海拔甘蔗细茎野生种遗传力和配合力分析
Analysis of combining ability and heritability of Saccharum spontaneum L.collected from low and middle altitude areas of Yunnan Province
摘要
Abstract
[Objective ]The present experiment was conducted to select Saccharum spontaneum L. clones with high combining ability and heritability and expand the sugarcane genetic diversity in breeding. [ Method ] Seven Saccharum spontaneum L, clones, collected from different altitudes of Yunnan Province were selected by using SSR molecular marker and backcrossed with sugarcane variety Dezhe 93-94. The broad-sense heritability and camhining ability of six main economic traits, including plant height,slalk diameter, brix, millabie stalk number, sugar yield and cane yield were calculated by R software. [Result]The results of variance showed that stalk diameter, sugar yield, cane yield, millable stalk number and plant height were highly significant, while the brix was significant. The broad-sense heritability of all combinations was excellent and found over 67.0%. The special combining ability of two combinations viz., Dezhe 93-94×Yunge 82-114 and De2he 93-94×Yunnan 1 showed positive effects on plant height, millable stalk number, sugar yield and cane yield. The special combining ability of Dezhe 93-94xRuige 07-3,Dezhe 93-94×Ruige 06-7-3 showed positive effects on stalk diameter, sugar yield and cane yield. The special combining ability of Dezhe 93-94×Yunge 83-184 and Dezhe 93-94xYunge 83-174 showed positive effects on millable stalk number. [Conclusion]The Sacrharum spontaneum L. clones such as Yunge 82-114, Ruige 07-30, Ruige 06-7-3 and Yunnan 1, which were selected from low and middle altitude areas of Yunnan showed tremendous heritability and combining ability of cane and sugar yield, while Yunnan 1. Yunge 83-174 and Yunge 83-184 showed great heritability and combining ability of millable stalk number, therefore, may be used for developing innovative parents as required in breeding.关键词
甘蔗细茎野生种/遗传力/配合力/分子标记/中低海拔地区/云南Key words
S. sponlaneum L./ combining ability/ heritability/ molecular marker/ low and middle altitude/ Yunnan分类
农业科技引用本文复制引用
朱建荣,桃联安,董立华,周清明,杨李和,安汝东,经艳芬..云南中低海拔甘蔗细茎野生种遗传力和配合力分析[J].南方农业学报,2012,43(3):272-276,5.基金项目
现代农业产业技术体系建设专项资金资助项目(nycytx-024-01-03,nycytx-024-02-07) （nycytx-024-01-03,nycytx-024-02-07）
云南省重点新产品开发计划项目(2010BB011) （2010BB011）
