摘要
采用盆栽土培方法，在灭菌和不灭菌条件下研究了棉花在３种土壤上生长时对两种ＶＡＭＦ菌株的反应。结果表明，棉花对ＶＡＭＦ有很强的依赖性，接种外源ＶＡＭＦ可以改变棉花ＶＡＭＦ的感染曲线和棉花磷素的吸收模式。提出棉花优势ＶＡＭＦ的评价标准：起始感染速度快，前期感染强度大，满足宿主前中期磷素需要；中期最高感染率不过高（＜６５％），最经济地利用宿主碳水化合物。筛选出Ｇｌｏｍｕｓ属的ｓｐ．优势新种，在黄淮海棉区具有应用前景。
The effect of two indigenous strains of VAMF on cotton were tested by pot soil cul-ture under sterilizing or not sterilizing condition. The result showed that cotton highly depend-ed on VAMF for growth and development,it also showed that inoculation of foreign VAMFcould change the infective curve of VAMF and the normal phosphorus absorption of cotton. A new criteria advanced by us that dorminant VAMF strains of cotton characterised by fast in-fective speed to meet the need of phosphorus by cotton and a optimum infective rate(≤65%)to a lower consumption of assimilation products of cotton at the least amount. A new species of Glomus to be named has a bright applied feature in Huanghuaihai Cotton Region.
出处
《棉花学报》
CSCD
北大核心
1994年第4期237-242,共6页
Cotton Science
基金
中国农业科学院院长基金
关键词
棉花
VAMF
菌根真菌
菌株
磷
Cotton,VAMF Glomus,infection rate,phosphorus nutrition
