Evaluation of exotic french bean (Phaseolus vulgaris L.) germplasm and estimation of character association under tarai region of Uttaranchal
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Date
2005-04
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G.B. Pant University of Agriculture and Technology, Pantnagar - 263145 (Uttarakhand)
Abstract
The present investigation was conducted during January – May, 2004 at Vegetable Research Centre, G. B. Pant University of Agriculture & Technology, Pantnagar, U. S. Nagar, Uttaranchal with four hundred forty one diverse genotypes of French bean (Phaseolus vulgaris L.) introduced from CIAT, Cali, Columbia. The experiment was laid out in augmented design with single replication. Genetic variability was studied for characters viz., days to 50 % flowering, number of pods per plant, pod length, plant height, days to maturity, seed yield per plant and 100-seed weight. Data were analysed statistically for mean, simple correlation coefficient and path coefficient. The mean estimates of genotypes indicated that there was a wide range of variation in the germplasm for characters studied. Correlation coefficient studies indicated that seed yield per plant was positively and significantly correlated with number of pods per plant, pod length and 100-seed weight but negative and significant association with days to 50 % flowering and days to maturity was established. Maximum positive direct effect on seed yield per plant was imposed by number of pods per plant, 100-seed weight and pod length. However, high negative direct effect was noted for plant height, days to maturity and days to 50 % flowering.
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