Interaction between strains of Bradyrhizobium and groundnut (Arachis hypogaea L.) cultivars
1990
Joshi, P.K. | Kulkarni, J.H. | Bhatt, D.M. (National Research Centre for Groundnut, Junagadh (India))
Field experiments were conducted during the rainy seasons of 1985 and 1986 at the National Research Centre for Groundnut, Junagadh, India, to investigate the responses of five groundnut cultivars, representing two habit groups, to eight strains of Bradyrhizobium. Observations at 30 days of crop growth on nodule dry weight and plant dry weight during 1985 and plant dry weight in 1986 indicated significant interaction between some of the strains of Bradyrhizobium and cultivars of groundnut. Bradyrhizobium strains IGR 68, IGR 76 and NC 92 were found superior to most of the other strains and the uninoculated control in producing more nodules and plant dry weight in both years. Among cultivars, the Spanish bunch cultivar JL 24 proved to be the best in producing more vigorous nodulation and increased plant dry weight. Spanish bunch cultivars produced better pod yields than Virginia cultivars.
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