浙江农业学报

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浙江省大豆花叶病毒(SMV)流行株系抗性种质的筛选及农艺性状调查

  

  1. (1浙江省农业科学院 作物与核技术利用研究所 杭州国家大豆改良分中心,浙江 杭州 310021;2南京农业大学 大豆研究所 国家大豆改良中心,江苏 南京 210095)
  • 出版日期:2015-04-25 发布日期:2015-04-30

Screening and agronomic character investigation of resistant germplasms to the popular strains of Soybean mosaic virus (SMV) in Zhejiang Province

  1. (1 Hangzhou Sub\|center of National Soybean Improvement, Institute of Crops and Nuclear Technology Utilization, Zhejiang Academy of Agricultural Sciences,Hangzhou 310021, China;2 National Center for Soybean Improvement, Soybean Research Institute, Nanjing Agricultural University, Nanjing 210095, China)
  • Online:2015-04-25 Published:2015-04-30

摘要: 大豆花叶病毒株系SC9和SC15是浙江省的流行株系。为了调查大豆对这两个流行株系的抗性并筛选抗源,该试验利用人工接种的方法对55份栽培大豆和39份野生大豆种质进行了抗性鉴定,并进一步调查了筛选出抗源材料的农艺性状。栽培大豆种质中,对株系SC9和SC15表现为抗病的分别有12份和15份,分别占参试栽培大豆种质总数的21.8%和27.3%;对两株系表现双抗的有10份,占参试栽培大豆种质总数的18.2%。其中来自浙江、辽宁、江苏等地的栽培种质抗性较好。野生大豆种质中,仅有1份种质对SC15表现中抗,其余种质均表现不同程度的感病。农艺性状调查结果显示,抗源开心绿宝石的主茎节数、单株荚数、单株粒数等性状明显优于其他品种;抗寒1号的荚长、荚宽、百粒鲜重和蛋白含量等性状也明显优于其他品种;23037\|1的蛋白含量相对较高;浙农8号种子的可溶性糖含量相对较高。筛选出的具有良好抗性的种质资源可作为抗源材料用于今后的抗病新品种选育及与抗性相关的研究。

关键词: 栽培大豆, 野生大豆, 大豆花叶病毒, 抗性鉴定, 农艺性状

Abstract: SC9 and SC15 are the most popular Soybean mosaic virus (SMV) strains in Zhejiang Province. In order to screen for resistant materials to these two popular SMV strains, 55 cultivated soybean and 39 wild soybean germplasms were inoculated with these two strains in two independent experiments. The results showed that 12 and 15 cultivated soybeans were highly resistant to strain SC9 and SC15, respectively, accounting for 218% and 273% of the tested cultivated soybeans, respectively. Ten of them were highly resistant to both SC9 and SC15. These resistant materials mainly came from Zhejiang, Liaoning and Jiangsu Provinces. Only 1 wild soybean germplasm showed moderate resistance to SC15, and all the others were susceptive to SC9 and SC15 in different degrees. Agronomic traits investigation of these resistant materials showed that the node number, pod number and seed number of Kaixinlyubaoshi were significantly higher than other germplasms. Kanghan 1 exhibited larger pod length, pod width, 100\|seed weight and protein content. The germplasm 23037\|1 and Zhenong 8 showed higher protein content and soluble sugar content, respectively. These resistant germplasms with better agronomic traits could be further used in soybean breeding, production, and SMV related researches.

Key words: cultivated soybean, wild soybean, Soybean mosaic virus, resistance identification, agronomic traits