| 糜子种质材料的抗倒伏性、农艺性状及力学特性 |
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| 引用本文：董孔军，刘天鹏，何继红，任瑞玉，张 磊，杨天育.糜子种质材料的抗倒伏性、农艺性状及力学特性[J].西北农业学报,2018,27(8):1119~1126 |
| DOI:10.7606/j.issn.1004-1389.2018.08.006 |
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| 基金项目:国家现代农业产业技术体系(CARS-06-13.5-A9)；国家自然基金地区基金（31460381）；甘肃省农业科学院学科团队（2017GAAS21）。 |
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| 中文摘要:2016 年在敦煌绿洲灌水区对来自中国不同生态区的 59 份糜子种质材料进行田间抗倒伏性鉴定与评价。结果显示： 59 份种质材料中 17 份未倒伏，占 28.8%， 42 份有不同程度的倒伏，占 71.2%。农艺性状与倒伏率的相关性分析表明，糜子株高、株穗质量及茎粗与倒伏率显著相关。茎秆机械强度、倒伏指数与倒伏率极相关，相关系数分别是 -0.364 和 0.833 。倒伏指数和农艺性状的相关性与倒伏率和农艺性状的相关性吻合度最高，说明倒伏指数能全面可靠地代替倒伏率评价糜子种质材料的抗倒伏性。同时筛选鉴定的‘陇糜 7 号’‘陇糜10号’ ‘内糜3号’抗倒伏性强，综合性状优良，是糜子抗倒伏基因资源的理想材料。 |
| 中文关键词:糜子 抗倒伏 种质资源 农艺性状 力学特性 |
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| Interrelation of Lodging Resistance, Agronomic Traits and Mechanical Properties of Germplasm Resources in Broomcorn Millet |
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| Abstract:Lodging resistance of 59 broomcorn millet germplasms from different ecological areas in China were identified and evaluated in Dunhuang Oasis Irrigation region in 2016.The results showed that there were 17 germplasm resources resisted to lodging,accounting for 28.8% of the materials, 42 germplasm resources had different degrees of lodging,accounting for 71.2% of the lodging materials.The correlation analysis between agronomic traits and lodging rate showed that plant height, panicle mass and stem diameter were significantly correlated with lodging rate.The stem mechanical strength, lodging index and lodging rate of correlation coefficient was -0.364 and 0.833,respectively.The collection of lodging index,agronomic traits and lodging rate was consistent,so,instead of the lodging rate,the lodging index was comprehensively reliable to evaluate the lodging resistance of millet germplasm .By lodging index, 3 accessions of ‘Longmei 7’,‘Longmei 10’ and ‘Neimei 3’ had strong lodging resistance, its comprehensive characters were ideal materials for germplasm resources in resistance to broomcorn millet lodging. |
| keywords:Broomcorn millet Lodging resistance Germplasm resources Agronomic traits Mechanical properties |
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