Impact of VA-mycorrhiza, Azotobacter and Rhizobium on Growth and Nutrition of Cowpea
2001
Kumar, R. | Gupta, P.P. | Jalali, B.L. (Chaudhary Charan Singh Haryana Agricultural University, Hisar (India). Dept. of Plant Pathology).
Cowpea was inoculated with VA-mycorhiza (Glomus fasciculatum), Rhizobium (CP-3 and Azotobacter (Mac-21) in nutrient deficient sterilized soil using earthern pots. Plants inoculated with mycorrhiza plus Rhizobium and Azotobacter had highest seed germination, number of nodules, nodule dry weight, plant height, mycorrhizal colonization and nutrient content as compared to inoculation with either one organisms or two organisms. Interactions between host and symbionts also varied with cultivars. From present study it can be concluded that VA-mycorrhiza or Azotobacter or Rhizobium or their combinations can have important effect on nodulation, nitrogen fixation and p uptake in legumes.
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