| 闫锋,李清泉,董扬,季生栋,郑旭,赵蕾.黑龙江糜子种质资源农艺性状遗传多样性[J].干旱地区农业研究,2021,39(4):239~244 |
| 黑龙江糜子种质资源农艺性状遗传多样性 |
| Genetic diversity of agronomic traits analysis of broom corn millet germplasm in Heilongjiang Province |
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| DOI：10.7606/j.issn.1000-7601.2021.04.30 |
| 中文关键词: 糜子 种质资源 农艺性状 遗传多样性 黑龙江省 |
| 英文关键词:broom corn millet germplasm resources agronomic traits genetic diversity Heilongjiang Province |
| 基金项目:财政部和农业农村部：国家现代农业产业技术体系建设专项（CARS-07-06B）；黑龙江省农业科学院农业科技创新跨越工程项目（HNK2019CX05-06）；黑龙江省农业科学院院级课题（2020YYF035） |
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| 中文摘要: |
| 对黑龙江省149份糜子种质资源的11个农艺性状进行了评价鉴定。结果表明:该批糜子种质资源具有较为丰富的遗传多样性，6个数量性状的遗传多样性指数分别为千粒重（2.06）、主茎高（2.02）、主穗长（2.02）、生育期（1.94）、单株粒重（1.79）、主茎节数（1.37）,5个质量性状的遗传多样性指数分别为粒色（1.87）、花序密度（0.64）、穗型（0.64）、花序色（0.51）、穗分枝长（0.46）;相关分析结果表明，单株粒重与穗型和花序密度呈极显著正相关；主成分分析结果表明，前4个主成分累计贡献率达到72.49%,第1主成分主要与穗型有关，第2主成分主要与生育期有关，第3主成分主要与籽粒性状有关，第4主成分主要与产量有关；聚类分析在遗传距离为10.0时将149份糜子种质划分为4类；筛选出20份具有早熟、矮秆、大穗的糜子资源。 |
| 英文摘要: |
| In this study, 11 agronomic traits of 149 proso millet germplasm resources from Heilongjiang were evaluated. The results showed that these broom corn millet germplasm resources represented abundant genetic diversity, and the genetic diversity index of 6 quantitative traits were 1000-grain weight(2.06)>height of main stem(2.02), main spike length(2.02)>growth period(1.94)>grain weight per plant(1.79)>node numbers of main stem(1.37), and the genetic diversity index of 5 quality traits were grain color (1.87)>inflorescence density(0.64), spike shape(0.64)>inflorescence color(0.51)>length of spike branching(0.46). Correlation analysis showed that grain weight per plant positively correlated to spike shape and inflorescence density. The cumulative contribution of the top 4 principal factors reached 72.49% in the principal factors analysis. The first principal factor was mainly related to spike shape, the second principal factor was mainly related to growth period,the third principal factor was mainly related to seed, and the forth principal factor was mainly related to yield. Based on the cluster analysis, 149 proso millet germplasm resources were classified into 4 groups and 20 germplasm accessions with elite traits（early maturing, short stalk,good seed setting rate and high yield）were found useful for future breeding. |
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