抗大豆胞囊线虫病野生大豆种质资源的初步筛选

Identification on Soybean Germplasm Resistant to Soybean Cyst Nematode from Glycine soja

对来自河北东部沿海地区的119份野生大豆资源进行了大豆胞囊线虫的抗性鉴定,结果表现抗病的有48份,占40.3%,表现感病的资源有71份,占59.7%。通过对供试材料的部分农艺性状与雌虫指数进行相关分析,发现单荚粒数和根瘤数与野生大豆抗胞囊线虫反应呈极显著正相关。对野生大豆资源的来源分析表明,抗大豆胞囊线虫病野生大豆资源在冀东分布广泛,其中滦南野生大豆抗性资源比较丰富。

A total of 119 wild soybean accessions from the eastern coastal region of Hebei province were identified for their reaction to SCN.The results showed that there were 48 accessions resistant to SCN,and 71 accessions susceptible to SCN,accounting for 40.3% and 59.7% of the tested accessions,respectively.Correlation analysis for several characters and female index of the accessions tested were conducted.There was a significantly positive correlation between seeds per pod,root nodule number and resistance to SCN.The results indicated that the distribution of SCN resistant wild soybeans was extensive in the eastern coastal region of Hebei province,especially in Luannan.