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对4份毕节高支苎麻的主要农艺性状进行遗传分析的结果表明:鲜皮出麻率和单纤维支数等农艺性状具有较大的遗传力,可在早代单蔸(株)选择或直接选择,产量、鲜定厚、茎粗等性状的遗传力较低,应根据各性状同相关关系进行间接选择或推迟到晚期世代选择。遗传变幅较大的性状有鲜皮出麻率、株高、单荒产量等,由于性状的改良效果主要由性状的遗传力和变异幅度及选择强度所决定,因此,在5%的选择强度下,遗传改良效果好的性状为株高、有效株率、鲜皮出麻率。
Genetic analysis of the main agronomic traits of 4 ramie high-yield ramie showed that the traits of epithermal yield and single-fiber number had great heritability, which could be selected in the early stage of single ramie The heritability of traits such as selection, yield, fresh-set thickness and stem diameter is relatively low, and should be indirectly selected or deferred to the later generations according to the traits associated with the traits. Larger genetic variation traits such as fresh husk hemp yield, plant height, single crop yield, etc., because the improvement of traits mainly by the heritability and variation of traits and the choice of intensity, so, at 5% of the selective intensity Under the good genetic improvement traits as plant height, effective plant rate, fresh husk output rate.