山西省谷子种质资源收集与多样性分析

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Abstract： In this study，a comprehensive survey and collection of foxtail milet germplasm resources were conducted across 1l prefecture-level citiesand 105 county-level administrative regions in Shanxi province， China.Specialized investigation teams caried out systematic surveys and rescue collections in 3O counties （cities，districts）of these prefecture-level cities.The distribution of the collected foxtail millet germplasm resources was cataled and analyzed，and phenotypic identification was performed in the field.The results showed that a total of 406 foxtail millet germplasm resources were collcted in this survey. The number of germplasm resources collected in the Jinzhong city was the highest，with 56 samples，accounting for 13.97% of the total resources，while only six samples of germplasm resources were collected in the Yangquan city. Genetic diversity analysis indicated that the coefficient of agronomic traits variation （ of foxtail millet germplasm resources ranged from 11.67% to 28.88% ，and the mean Shannon-Wiener diversity index was 2.O1.Correlation analysis showed that the correlation coefficients between different traits ranged from -0.34 to 0.97. Principal component analysis showed that the first five principal components represented 77.707% of the total genetic variability. Using the membership function method，11 elite accessions such as Zigenbai， Xiaohonggu，and Jiagu，were identifiedassuperior genetic resources.Theseresults indicate that foxtail millet in Shanxi harbors substantial genetic diversity，providing valuable germplasm for future breeding programs.

Key words： foxtail millet; germplasm resources;agronomy traits;diversity analysis;Shanxi

谷子[Setariaitalica（L.）Beauv.]是禾本科一年生草本植物，起源于中国黄河流域[1]，具有耐贫瘠、耐旱、适应性强等特点[2-3]。（剩余10979字）