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Agriculture University, Jodhpur

Agriculture University, Jodhpur was established on 14th September, 2013 by Government of Rajasthan under Agriculture University, Jodhpur Act 21 of 2013 to focus on holistic development of arid and semi-arid regions of the state covering 6 districts (Jodhpur, Barmer, Nagaur, Pali, Jalore and Sirohi), constituting 28% of total geographical area which is sustaining 20.8% human and 28.4% animal population of the state. The districts under jurisdiction of the university cover 3 agro-ecological zones of the state. These are Arid Western Plain Zone Ia (Jodhpur and Barmer districts), Transitional plain of Luni Basin Zone IIb (Jalore, Pali, and Sirohi districts) and part of Transitional Plain of Inland Drainage Zone IIa (Nagaur district). The university has 1 institute of diploma and 3 colleges to produce highly competent educated human resources in agriculture and allied sciences besides 2 agricultural research stations, one each in zone Ia & IIb and 3 agricultural research sub stations, one in each zone to prepare, plan and perform highly need based research in this acute water scarce but naturally rich bio-diversified zone of the country. The third most important part in tri-pillar (Teaching, Research & Extension) of agricultural development, the extension for transfer of technologies are reached to doorsteps of the farming community by 6 Krishi Vigyan Kendras (K-V-Ks), 2 in Nagaur district and 1 each in Jodhpur, Barmer, Jalore & Sirohi districts under the umbrella of the university. The different units of teaching, research and extension are coordinating to systematically run by the headquarter situated at Mandor, Jodhpur.

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Author: Kumar, Sunil × End date: 2024 × Start date: 2020 × Type: Thesis × Thesis Type: M.Sc ×
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    ThesisItemOpen Access
    Diversity Studies in Round Gourd [Praecitrullus fistulosus (Stocks) Pangalo]
    (Agriculture University, Jodhpur, 2020-07-16) Kumar, Sunil; Moond, S.K.; Choudhary, Santosh; Ram, Moola
    A field experiment entitled “Diversity studies in Round gourd [Praecitrullus fistulosus (Stocks) Pangalo]” was carried out at the College of Agriculture, Jodhpur (Rajasthan). The experiment was laid out in Randomized Block Design with three replications during Kharif 2019 on 20 different genotype of round gourd including two check cultivars, to estimate the extent of genetic variability, heritability, genetic advance, correlation among the yield and other attributing traits, direct and indirect effect of yield contributing traits through path coefficient analysis and genetic divergence through D2 statistics. Analysis of variance (ANOVA) exhibited significant differences for all the studied characters suggesting the presence of great inherent genetic variation amongt the genotypes. The phenotypic coefficients of variation were slightly higher than the respective genotypic coefficients of variation for all the characters under study. High estimates of heritability were noted for almost all the traits except days taken to 50% female flowering, leaf area and days to anthesis of first female flower. High heritability and high genetic advance as per cent of mean were observed for the traits of main vine length at harvest, number of marketable fruits per plant, fruit yield per plant, fruit yield per hectare, fruit yield per plot, node on which first male flower appeared, fruit diameter, shelf life and rind thickness, suggesting additive gene action for expression of these characters. Hence, these characters may prove effective for selection to improve fruit yield per plant in round gourd. Correlation studies among the characters revealed that fruit yield per plant had significant positive association with the characters like number of leaves par plant, main vine length at harvest, internodal length, leaf area, number of marketable fruits, fruit diameter, fruit weight, rind thickness and shelf life both at phenotypic and genotypic levels. Path coefficient analysis of various quantitative characters indicated that main vine length at harvest, internodal length, days to anthesis of first female flower, days taken to 50% female flowering, number of marketable fruits per plant, fruit diameter, fruit weight and rind thickness exhibited positive direct effect on fruit yield per plant. Based on the relative magnitude of D2 values, Tocher’s method resulted in formation of three clusters. Out of the three clusters, cluster I was the largest comprising of fifteen genotypes followed by II with four genotypes while the cluster III was monogenotypic, suggesting the existence of high degree of heterogeneity between the genotypes. The trait of fruit shelf life contributed the maximum towards genetic divergence. The highest intra-cluster distance was recorded in the cluster II, while the inter-cluster distance was the highest between cluster I and II, followed by cluster II and III, indicating that superior recombinants could be obtained by mating between genotypes of these clusters.