嗑食型向日葵核心种质构建及种质创新研究

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本文对搜集到的43份嗑食型向日葵种质资源进行了聚类分析,并初步确定嗑食型向日葵的核心种质为云南大理农家种、赤葵2号、承德围场农家种、山西朔州平鲁区陶村乡农家种、扎鲁农葵一号、赤峰松山区农葵、三道眉、益民大白花葵、星火葵花、西安高岭农家种、H4、DK119、LD5009;利用100戈瑞,150戈瑞,200戈瑞三个辐射剂量的60G。伽马射线照射食葵种子,诱发其变异,结果表明,100戈瑞照射食葵风干种子的存活率为41.5%,接近于辐射诱变育种的临界剂量,从辐射诱变二代群体中筛选到早熟和矮秆变异类型,因而1
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