“Response of promising adzuki bean (Vigna angularis) genotypes to different fertility levels”
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Date
2023
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College of Forestry, Ranichauri
Abstract
Title: “Response of promising adzuki bean (Vigna angularis) genotypes to different fertility levels”
Azuki bean (Vigna angularis) belongs to a group of legumes known as the Asian Vigna. China is the largest producer of adzuki with an estimated production of about 260 thousand tons in the year 2019-20 and followed by Japan. In India, it is considered as a potential crop and its cultivation is limited to the North-eastern and Northern hill zones. It mainly grown in Chamba, Kangra, Mandi and Bilaspur districts of HP.
The current investigation was conducted in kharif2022, at Research and Extension Centre, Gaja, College of Forestry, Ranichauri (Tehri Garhwal). The experiment comprised of two factors viz., fertility levels (F): F1- Control, F2- 75% NPK, F3- 100% NPK and F4- 125% NPK in main plot and genotypes (V): V1- EC0000264, V2- IC455396, V3- IC469174, V4- IC469175 and V5- HPU-51 in sub plot with total of 20 treatment combinations that were evaluated in split plot design with two replications. The seed after harvest were analysed for seed quality parameters in 2 factors complete randomized design with three replications at Department of Seed Science and Technology, College of Forestry, Ranichauri. The data was analysed using OP Stat with figures from SAS (proc glm).
Among the fertility levels, F3 performed well in field conditions compared to others. Among various genotypes, V3 showed maximum growth with V2 having better yield attributes, yield and economics of adzuki bean as compared to other genotypes.
On the basis of laboratory experiments, F3 performed well as compared to other fertility levels. Among different genotypes, V3 showed significant results over others. Also, the interactions between fertility levels and genotypes were found significant for quality parameters under standard germination and stress tolerance tests. Among all the traits, number of branches per plant exhibited highest GCV, PCV and ECV followed by grain yield, dry weight, number of pods per plant and fresh weight. High heritability was observed for fresh weight, biological yield and dry weight. High genetic advance was observed for test weight followed by fresh weight and harvest index. For genetic advance per cent mean, the maximum was found in seed yield, while minimum in plant height. High heritability coupled with high genetic advance indicates the presence of high additive gene effects providing scope for the improvement through hybridization and selection.
Based on the study, it can be concluded that application of recommended fertilizer (100% NPK) enhances the growth, seed yield and economic of adzuki bean ofV2 (IC455396) genotypeand seed quality ofV3 (IC469174) of adzuki bean.