【摘要】 对不同抗性大豆品种与大豆胞囊线虫的田间群体动态关系进行了系统研究 ,结果表明 :大豆胞囊线虫胞囊的孵化不依赖于寄主根分泌物 ,在侵染的中后期感病品种根内线虫总数是抗性品种的3～10倍 ,抗性品种的抗性主要表现在两个时期 ,即出苗13～16d和出苗27d。有的品种(如磨石豆)根内二龄幼虫到三龄幼虫阶段死亡率更高 ,但多数抗性品种中从三龄幼虫发育到四龄幼虫阶段的抑制强于从二龄幼虫发育到三龄幼虫阶段的抑制 ,仅有少数抗性品种在四龄幼虫发育到成虫阶段表现良好的抗性更多还原

【Abstract】 The relationships between soybean cultivars and population dynamics of Heterodera glycines (SCN) were studied. The cysts of SCN could hatch in soil absenting host plants. The numbers of SCN in susceptible soybean roots were 3 to 10 times the numbers in resistant soybean roots. Most resistant soybean cultivars inhibited J2 and J3 development, and some resistant soybean cultivars inhibited J4 development.更多还原