棉豆瓜菜玉米等接种VA菌根真菌的生长反应

Growth Responses of Cotton, Corn etc. to the Inoculation of VAM Fungi

1989年在佐治亚大学生态所温室用缺速效磷的灭菌河沙土,在328个无菌盆栽中研究了棉花等7种作物接种G.etunicutum等5种VAM真菌孢子混合液后的生长反应情况,每立方厘米无菌土中接入3个混合孢子为+VAM处理, 对照不接,对比法排列,生长期70多d.结果表明,+VAM处理的棉花、玉米、大豆、西红柿的苗干重分别比各自的对照高947%.74.2%,27.8%和124.9%,而西瓜和油菜则无显著反应(t检验);G.macrvcarpum菌种可能有较强的孢子生产能力.

In 1989, 7 crops in 328 steriled pots with sandy soil (P deficient) were inocu ared with the mixture of 5 species of VAM fungi (3 spores per cm3of soil)and grown in the gree house for about 70 days. The results showed that, with the VAM inoculation, much, greater growth was obtained in cotton (947%), corn (74, 2%), soybean (272. 8%), tomato (124.9%), and hot pepper (552%), but no significant growth enhancement in watermelon and rape was found. Probably the G. macrocarpum species is capable of reproducing more spores.