中国本土割手密血缘创新亲本材料的利用潜力分析

 以云割F1，F2，崖城71-374（F2）及其后代与国内外常用亲本配成的30个杂交组合为研究材料，分析其有性世代主要性状的遗传效应。结果表明：母本、父本及选配方式的不同后代的主要性状均表现极显著差异（P<001），平均遗传力依次为：组合（896%）＞父本（764%）＞母本（706%）；后代主要性状的遗传力大小顺序为锤度＞有效茎＞茎径＞株高＞蔗产量＞糖产量；云割F197-105，云割F197-147，云割F203-7，云割F203-78，云割F180-189，云瑞05-458，云割F203-72等7个材料做父本的一般配合力优于优良亲本崖城71-374，可作为优良创新种质、亲本材料重点利用；云蔗99-155，云割F203-315，云蔗89-7，桂糖92-66，内江00-118可作为高糖亲本利用；德蔗93-88×云割F203-7，CP65-357×云割F180-189，粤糖93-159×云割F180-189可作为高产、高糖优良创新组合重点利用；CP65-357×云割F197-105，粤糖93-159×云割F197-147，云瑞05-344×云割F197-105，Q141×云割F197-105，云瑞05-189×云割F203-78，云瑞05-344×云瑞05-458，农林03-1×云割F197-105等可作为高生物量能源甘蔗育种优良创新组合重点利用。

Breeding Potential of Creation Parents Derived from China Native Saccharum spontaneum in Sugarcane

The parents derived from China native Saccharum spontaneum Yunge F1,F2,Yacheng 71-374(F2) and some of their progenies were crossed to commonly used parents,thirty cross combinations were made to study the hereditary effects of main trait.The results indicated the effects on offspring by male,female and combination were extremely significantly different(P<0.01).The contribution sequence of broad-sense heritability on offspring populations was cross combination(89.6%)>male(76.4%)>female(70.6%),sequence of bro...