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.
(Agriculture University, Jodhpur, 2020-07-16) Anita; Kumhar, S. R.; Meena, R.C.; Choudhary, B. R.
An experiment entitled “Genetic Divergence and Character Association studied on
Seed Yield and Component Traits in Mungbean [Vigna radiata) (L.) Wilczek]” was carried
out during Kharif 2019-20 at the Research Farm of Agricultural Research Station, Mandor,
Jodhpur. The experiment was laid out in Randomized Block Design (RBD) with 38
genotypes and three replications to estimate the extent of genetic variability, heritability,
genetic advance, character association and genetic divergence between yield and its
attributing characters. Analysis of variance exhibited significant difference for all the
characters suggesting the presence of great inherent genetic variations among the genotypes
studied. The highest magnitudes of PCV and GCV were observed for number of pods per
plant whereas, the lowest for days to maturity.
High heritability coupled with high genetic advance as per cent of means altogether
observed for the traits like plant height, number of pods per plant, number of branches per
plant, 100 seed weight, harvest index and seed yield per plant suggesting additive gene
action for expression of these characters. Hence, these characters may be proved as effective
criteria for selection to improve the seed yield in mungbean.
Correlation studies among the characters revealed that seed yield per plant has
highly positive and significant association with characters like plant height, number of pods
per plant, number of branches per plant, number of seeds per pod and 100 seed weight both
at phenotypic and genotypic levels, depicting that these are important yield contributing
Path coefficient analysis of various quantitative traits indicated that number of pods
per plant had the highest positive direct effect on seed yield per plant followed by number of
seeds per pod, pod length, 100 seed weight, plant height and days to maturity while, days to
50% flowering exhibited the maximum negative direct effect on seed yield per plant in
Based on the relative magnitude of D2
values, Tocher’s method resulted in formation
of nine clusters. Out of nine clusters, cluster I was the largest comprising of twenty nine
genotypes followed by cluster II with two genotypes, clusters III and rest were
monogenotypic suggested the existence of high degree of heterogeneity among the
genotypes. The trait plant height contributed maximum towards genetic divergence. The
highest cluster distance was observed between cluster II and cluster IX followed by cluster II
and cluster VII, therefore, transgrassive segregates can be obtained through hybridization by
using genotypes of these clusters.
Out of 38 genotypes, PM 1522, GM-6, IGKM 06-18-3 and GM-4 were found
promising for seed yield and other characters, hence these genotypes could be useful as
parental source for future breeding programme.