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耐储藏大豆种质的筛选是大豆种子耐储藏性遗传改良的基础。通过测定种子发芽率和电导率等指标,对87份大豆种子的耐储藏性进行评价。结果共筛选出耐储藏大豆种质38份,包括24份地方种质和14份栽培种质。相关分析表明,大豆种子的耐储藏性与种皮色素沉积量正相关,与大豆籽粒大小负相关。但在这些耐储藏种质中,20份种质的种皮为黄色,3份种质的百粒重超过22 g;大豆种子的耐储藏性与电导率负相关,但并不显著,电导率只能作为评价大豆耐储藏性的参考指标。所筛选出的38份种质可直接用于大豆种子耐储藏性的遗传改良,为进一步研究大豆种子耐储藏性的遗传机理奠定材料基础。
Screening of resistant soybean germplasm is the basis of genetic improvement of tolerant soybean seed. The storage resistance of 87 soybean seeds was evaluated by measuring the germination rate and conductivity of seeds. Results A total of 38 resistant soybean germplasms were screened, including 24 local germplasms and 14 cultivated germplasms. Correlation analysis showed that the storage resistance of soybean seeds was positively correlated with the amount of seed coat pigmentation and negatively correlated with the grain size of soybean. However, among these resistant germplasms, the seed coat of 20 germplasms was yellow, and the germination of three germplasms was over 22 g. The storage resistance of soybean seeds was negatively correlated with the conductivity, but not significant. The conductivity Only as a reference to evaluate the resistance of soybean storage. Thirty-eight germplasm screened out could be directly used for genetic improvement of soybean seed storage resistance, which laid the material foundation for further study on the genetic mechanism of soybean seed storage resistance.