【摘要】 室内测定了不同浓度的 6种阳离子 :钼、硼、锌、铜、锰和铁对大豆胞囊线虫卵的孵化、大豆种子发芽和根系生长 ,以及对线虫生防菌———厚垣轮枝菌菌丝生长的影响。结果发现 ,在供试所有浓度下 ,铜、锰和铁明显抑制大豆胞囊线虫的卵孵化 ,锌具明显刺激作用 ;在供试浓度水平较低时 ,铜、锰和铁对大豆种子发芽及根系生长有轻微抑制 ,锰的抑制较为明显 ,但均不影响进一步发育 ;在供试浓度较低时 ,铜、锰和铁对厚垣轮枝菌菌丝生长无任何影响。铜可作为线虫生防制剂的添加剂。更多还原

【Abstract】 In laboratory test, influence of 6 ions (Mo 6+ ,B 3+ ,Zn 2+ ,Cu 2+ ,Mn 2+ and Fe 2+ ) on hatching of eggs of SCN, germination of seed and growth of germ roots of soybean, and hyphal growth of the fungus, Verticillium chlamydosporium, the biocontrol agent of SCN was investigated. The results showed that: Zn 2+ could stimulate hatching of eggs of SCN. Cu 2+ , Mn 2+ and Fe 2+ decrease hatching. The latter three ions appeared to inhibit germination of seed and growth of germ roots of soybean. However, they did not affect the growth of soybean continuously. Under lower concentration, the above three ions did not influence the hyphal growth of V. chlamydosporium. Cu 2+ could be applied as a supplement to the biological control formulation.更多还原