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本文对甘薯早代品系10个数量性状的相关遗传力作了估算.结果表明,在选择强度相同时,利用某一性状对单株薯重进行间接选择的效果不如对单株薯重直接选择的效果好.通对对相关遗传力的通径分析表明,结薯数、蔓粗、大中薯数、大中薯重4个性状决定了单株薯重变异的94.99%,说明这4个性状是影响单株薯重的主要因素.
In this paper, we estimated the heritability of 10 quantitative traits in sweet potato early generations.The results showed that the indirect selection of single potato weight with some trait was not as effective as the direct selection of single potato weight with the same selection intensity Path analysis of related heritability showed that the four traits, tuber number, vine length, tuber number, and medium-sized tuberous weight, determined 94.99% of single potato weight variation, indicating that these four traits were Affect the main factors of potato weight.