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Chaudhary Sarwan Kumar Himachal Pradesh Agriculture University, Palampur

Himachal Pradesh Krishi Vishvavidyalaya (renamed as Chaudhary Sarwan Kumar Himachal Pradesh Krishi Vishvavidyalaya in June, 2001) was established on 1st November, 1978.The College of Agriculture (established in May, 1966) formed the nucleus of the new farm University. It is ICAR accredited and ISO 9001:2015 certified institution. The Indian Council of Agricultural Research has ranked this University at eleventh place among all farm universities of the country. The University has been given the mandate for making provision for imparting education in agriculture and other allied branches of learning, furthering the advancement of learning and prosecution of research and undertaking extension of such sciences, especially to the rural people of Himachal Pradesh. Over the years, this University has contributed significantly in transforming the farm scenario of Himachal Pradesh. It has developed human resources, varieties and technologies and transferred these to farming community enabling the State to receive the “Krishikarman award” of Govt. of India four times in row for food grain production among small states of the country. Today, the State has earned its name for hill agricultural diversification and the farming community has imposed its faith in the University.

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2020 - 20213
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Subject: Genetics and Plant Breeding × End date: 2021 × Start date: 2020 × Type: Thesis × Thesis Type: Ph.D ×
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    ThesisItemOpen Access
    Genetic improvement of linseed for inducing earliness in maturity and reducing the undesirable compounds through mutation
    (Palampur, 2021-11-30) KUMAR, ARJUN; Paul, Satish
    The present investigation entitled, “Genetic improvement of linseed for inducing earliness in maturity and reducing the undesirable compounds through mutation” was carried out in the experimental farm of Department of Genetics and Plant Breeding, COA, CSK HP KV, Palampur to assess the nature and magnitude of induced variability, determine the inheritance pattern of earliness in induced lines; determine the relative proportion of oil content of linseed mutants and isolate lines/mutants with reduced linolenic content in addition to earliness. Experimental material comprised of three linseed varieties viz. Baner, Him Alsi2 and Surbhi, seeds of which were treated with five doses of gamma rays (20, 30, 40, 50, 60 kR) and EMS (0.2 %, 0.4 %, 0.5 %, 0.6 %, 0.8 %) to generate M1 generation. On the basis of survival percentage in M1 generation under lab conditions the LD50 dose was estimated i.e. 96.63 kR (Baner), 72.94 kR (Him Alsi-2) and 53.22 kR (Surbhi) for gamma rays and 0.86 % (Baner), 0.72 % (Him Alsi- 2) and 0.35 % (Surbhi) for EMS. Plants harvested from M1 were carried forward to M2 generation. Both the mutagens were found effective and efficient in producing chlorophyll mutations and viable macromutations in M2 generation. Gamma rays and EMS also found effective in producing variability in range and mean values for different quantitative characters for which significant differences were obtained in both positive and negative directions. 113 mutants were carried forwarded to M3 generation based on their performance in M2 generation. Mean performance of M3 mutants showed significant shifts from their respective control. Analysis of variance was found significant for all the characters studied. Low GCV and PCV was found for number of days to 75 per cent maturity but high GCV (21.92 %) and PCV (27.05 %) was present in mutants for seed yield per plant. High heritability (96.52) coupled with low GAM (7.00 %) was found for number of days to 75 per cent maturity showing limited scope of its improvement, while high heritability (65.68 %) coupled with high GAM (36.60 %) was found for seed yield per plant showing presence of additive type of gene action. Line M3-3-5 showed highest oil percentage i.e. 58.44 per cent. The maximum reduction in linolenic acid percentage was found in M3-19-8 (36.11 %) followed by M3-19-4 (38.59 %) as compared to all the controls. Early maturing lines i.e. M3-14-2 (196.20 days) and M3-11-2 (196.20 days), high yielding line i.e. M3-13-2 (4.58 g) along with high oil content and low linolenic acid can be further evaluated to achieve the higher edible oil production of linseed
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    ThesisItemOpen Access
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    ThesisItemOpen Access
    STUDIES ON GENETICS OF COLD STRESS TOLERANCE AND TRANSFERABILITY OF MARKERS FROM RELATED LEGUMES TO CHICKPEA (Cicer arietinum L.)
    (CSKHPKV Palampur, 2020-10-27) THAKUR, SANCHIT; Jai Dev
    The present investigation entitled “Studies on genetics of cold stress tolerance and transferability of markers from related legumes to chickpea (Cicer arietinum L.) was undertaken at experimental farm of the Department of Genetics & Plant Breeding, College of Agriculture, CSKHPKV, Palampur as well as at Mountain Agricultural Research and Extension Centre (MAREC), Sangla (off season). In the present study, the cold stress tolerant germplasm line ‘ICC16349’ was selected as a donor whereas, the cold susceptible parent ‘GPF2’ was used as recipient in hybridization. Crosses between germplasm lines ‘ICC16349’ and variety ‘GPF2’ of chickpea were attempted and resulting hybrids were screened for parental polymorphism using 51 SSR markers of which only one i.e TA180 showed parental polymorphism. Out of 80 F1 putative hybrids screened, only 34 were true hybrids. F1 generation was advanced to get F2 seed. F2 plants were phenotyped and morphological data were recorded. Days to germination, plant height and number of leaves gave good estimate of early plant vigour and data showed clear segregation of F2 plants into vigorous and non-vigorous plants. Chi-square test was applied which revealed that late flowering was governed by single dominant gene. Pod initiation followed a complex pattern of inheritance involving polygenes. Studies on transferability of SSR markers from related legumes to chickpea revealed that lentil SSR primers had highest transferability (36.36%) to chickpea followed by pea SSR primers (18.18%) and horsegram SSR primers (14.89%), respectively. Percent polymorphism was also found to be highest for lentil SSR primers (10.61%) followed by horsegram SSR primers (4.25%) and pea SSR primers (3.79%), respectively. In the present study, 62 new SSR markers were added to chickpea SSR primer pool from three legumes. The new SSR markers are expected to contribute to molecular breeding, germplasm characterization, diversity analysis, gene mapping and comparative genomic studies in chickpea.