Legume Research

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Legume Research, volume 30 issue 4 (december 2007) : 275 - 278

ESTIMATION OF GENETIC VARIABILITY FOR NITROGEN FIXATION IN BLACK GRAM GENOTYPES WITH DIFFERENT STRAINS OF RHIZOBIUM

D.P. Neemar, S.K. Jain, V.L. Mathur
1Department of Plant Breeding and Genetics, Maharana Pratap University of Agriculture and Technology, Udaipur - 313 001, India

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Cite article:- Neemar D.P., Jain S.K., Mathur V.L. (2024). ESTIMATION OF GENETIC VARIABILITY FOR NITROGEN FIXATION IN BLACK GRAM GENOTYPES WITH DIFFERENT STRAINS OF RHIZOBIUM. Legume Research. 30(4): 275 - 278. doi: .

ABSTRACT

Twenty genotypes of black gram treated with two Rhizobium strains were planted in three environmentsviz., control (E1), treated with Rhizobium strain I (E2) and Rhizobium strain II (E3) under control condition in green house. Mean and variability parameters were computed for each environment and over the environments for all the traits. Performance of all the genotypes was superior in E2 and E3 than E1for number of nodules, nodule fresh weight, plant fresh and dry weight, total number of leaves, leaf area, seed yield per plant, nitrogen content, nitrogen reductase activity (NRA) and laghaemoglobin which might be due to increase in nitrogen fixation by Rhizobium treatments which affected favourably. High estimates of genetic gains along with high heritability and GCV were recorded for NRA (E1 and E3), total number of leaves (E3), grain yield (all environments), nodule fresh and dry weight (E2 and E3), plant fresh and dry weight (E3), leghaemoglobin content (all environments). Therefore, selection of these fixation aimed to improve grain yield in black gram

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