大豆重组自交系Jinf F10抗大豆孢囊线虫4号生理小种抗性的分析研究

2002-2005年,对以晋豆23为母本、灰布支为父本的大豆重组自交系Jinf F10群体的29个主要农艺性状和抗大豆孢囊线虫4号生理小种抗性进行了研究分析。结果表明:大豆重组自交系根系孢囊量与小区产量、单株粒重、粒长呈高度负相关,与单株质量、荚粒重呈显著负相关,与4粒荚数呈高度正相关,与粒宽、叶宽呈显著正相关。不同抗性的抗孢囊材料,相关性存在差异,高抗材料与株高、开花日数呈高度正相关;中抗材料与主茎节数和生育日数呈显著负相关,与单株粒重呈显著正相关;中感材料与29个主要农艺性状相关不显著;高感材料与百粒重、2粒荚长、小区产量、茸毛数呈高度正相关,与茎粗呈显著正相关。大豆重组自交系质量性状,黑色种皮与抗孢囊材料密切相关;脐色中褐黄色对黑色显性;花色和茸毛色分别为紫花对白花和棕毛对灰毛显性。

Studies on Relationship between Agronomic Traits and Resistance of SCN4 Race in Soybean Canopies

The relationship was studied between 29 agronomic traits and resistance of SCN4 race.This soybean RIL population was named as Jinf with across between Jinbean23 and ZDD2315.The result showed: No.of SCN was high negative correlation with yield per plot,seed weight per plant,seed length and was high positive correlation with No.of 4-seed per plant.No.of SCN was close negative correlation with weight per plant,weight of pod and was close negative correlation with seed breadth,leaves breadth.