南方农业学报2011，Vol.42Issue(9)：1035-1040,6.
云南不同生态型甘蔗细茎野生种育种潜力分析
Breeding potential of Saccharum spontaneum L.collected from several ecological areas of Yunnan
摘要
Abstract
The present experiment was conducted to screen new sugarcane combinations or germplasm with the objectives to expand the sugarcane genetic background and enhance the breeding efficiency of sugarcane. [Method] Ten Saccharum spontaneum L. Clones, collected from several ecological areas of Yunnan Province, were crossed to sugar cane landrace, and their seventeen combinations were used as materials. The broad-sense heritability and combining ability of six main economic traits, including plant height, diameter, brix, millable stalk number, sugar yield and cane yield were calculated by R software. [Result]The different S. Spontaneum L. When used as male parents, showed improvement in yield and economic characters of their hybrids. The effect of male and female parents on their hybrids was mainly observed in improvement of brix, stalk diameter, plant height and millable stalk number. In all parents and their cross combinations, the different combination patterns showed significant effects on the character improvement of their hybrids. The S. Spontaneum L. Collected from hot and humid regions showed high general combining ability for cane yield, especially in Yunge 82-114 and Ruige 06-7-3 which can be used as important germplasm in breeding of high cane yielding varieties. The S. Spontaneum L., especially Yunge 83-174, Yunge 83-160 and Yunnan 1, collected from semi-humid and semiarid regions showed high general combining ability for brix and may be used as fine germplasm in breeding high sugar yielding varieties. The special combining ability of three combinations viz., Yuetang 93-159× Yunge 82-114, CP65-357 × Ruige 06-7-3 and CP77-1776× Yunge 82-114 showed positive effects on sugar yield, cane yield and brix and these may be utilized in breeding both, the high sugar and high yielding varieties. [Conclusion]Different ecological types of Saccharum spontaneum L. Collected from Yunnan showed different heritability potential on cane yield and sugar yield, which can be selected with breeding objectives to make innovative germplasm and breeding new type of parents for enriching the sugarcane genetic background.关键词
甘蔗/生态型/细茎野生种/配合力/遗传力/云南Key words
sugarcane/ ecological type/ S. Spontaneum L./ combining ability/ heritability/ 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,安汝东,杨李和,段惠芬,刘洪博,经艳芬..云南不同生态型甘蔗细茎野生种育种潜力分析[J].南方农业学报,2011,42(9):1035-1040,6.基金项目
国家“863”计划项目(2007AA 100701) （2007AA 100701）
国家农业部公益性行业(农业)科研专项项目(nyhyzx07-019) （农业）
云南省面上基金项目(2007C236) （2007C236）
