云南野生甘蔗种质血缘F_3代亲本材料抗旱性研究初报  

A preliminary report on the drought resistance of sugarcane F_3 clones with Yunnan wild breed

作　　者：经艳芬[1] 桃联安[1] 杨李和[1] 张家瑞[1] 

机构地区：[1]云南省农科院甘蔗研究所瑞丽育种站,云南瑞丽678600

出　　处：《甘蔗（福建）》2002年第1期19-23,共5页Sugarcane

基　　金：云南省自然科学基金;云南省农科院自然科学基金资助项目

摘　　要：对 4个含云南割手密种血缘、5个含斑茅种血缘的 F3 代参试材料 ,进行了桶栽干旱胁迫条件下丙二醛含量、相对质膜透性以及株高伤害率等抗旱性指标的测定 ,筛选出各项指标均优于对照新台糖 10的云割 F3 95 /12 8和云斑 F3 99/719两个材料 ,并从种质基础和血缘关系上对其抗旱性状的遗传背景作了分析。初步认为 :(1)在楚连璧提出的“异质复合分离理论”指导下 ,已经获得云南野生甘蔗种质资源的抗旱性“性状复合遗传力”杂种优势 ;(2 )云割 F3 95 /12 8和云斑 F3According to the test of malondialdehyde content, permeability of plasma membrane and damage rate to plant height of 9 F 3 sugarcane clones with Yunnan wild breed (4 with S. spontaneum breed, 5 with E. arundinaceum breed) under water stress condition of barrel culture, 2 clones with better indexes than the control Newtaitang 10 were screened out, which were 95/128(an F 3 clone with Yunnan S. spontaneum breed) and 99/719(an F 3 clone with Yunnan E. arundinaceum breed ). It was suggested that the two clones could be used as parents for drought resistant breeding in sugarcane.

关 键 词：甘蔗 野生种质 抗旱性 抗旱育种 异质复合分离理论 株高伤害率 丙二醛含量 相对质膜透性 

分 类 号：S566.103.4[农业科学—作物学] S566.101