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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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2019 - 201912020 - 20231
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Subject: Vegetable Science × Author: Sharma, Shaina ×
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    ThesisItemOpen Access
    Genetic analysis of fruit yield, component and quality traits in tomato (Solanum lycopersicum L.)
    (CSK HPKV, Palampur, 2023-03-05) Sharma, Shaina; Chadha, Sanjay
    The present investigation entitled “Genetic analysis of fruit yield, component and quality traits in tomato (Solanum lycopersicum L.)” was carried out at Vegetable Research Farm of the Department of Vegetable Science and Floriculture, CSKHPKV Palampur with the objectives to study the nature and magnitude of gene action of fruit yield, component and quality traits of triple test cross progenies, and to identify the potential parents and cross combinations on the basis of combining ability and heterosis in tomato. The experimental material comprised of 24 triple test cross hybrids derived by mating 08 lines with three testers namely 12-1, Palam Pride and their single cross F1 (12-1× Palam Pride). 24 cross combinations, 11 parents along with standard check- 1 (Avtar) were evaluated in Randomized Complete Block Design with three replications during summer-rainy season of 2021. Tester F1 i.e.12-1× Palam Pride was identified as promising cross combination at CSKHPKV, Palampur during the past years and was also used as standard check -2 for the estimation of standard heterosis. Susceptible checks (Punjab Chhuhara and Roma) were included at every 11th row alternatively to ensure the presence of uniform distribution of bacterial wilt disease inoculum. The observations were recorded on five competitive plants marked at random in each entry over the replications on different quantitative traits viz. plant survival on the basis of bacterial wilt disease incidence, days to 50 per cent flowering, days to first harvest, average fruit weight (g), fruit shape index, pericarp thickness (mm), total fruits/plant, marketable fruits/plant, marketable yield/plant (kg), total yield/plant (kg), locules/fruit, plant height (cm), duration of fruit harvest (days). Data were recorded on some visual traits fruit shape, fruit colour, fruit shape at pedicel area, fruit shape at blossom end and blossom end scar. Biometrical analysis was done for the characters TSS (0Brix), ascorbic acid (mg/100g), lycopene content (mg/100g), titrable acidity, dry matter content, pH content, moisture content, carotenoid content (mg/100g) and TSS- AR ratio. Epistasis was discovered to be a crucial component of genetic variation for majority of the traits including marketable fruit yield/ plant. Epistasis has been found to be invariably present for all the examined attributes except days to first harvest. Both (i) and (j+l) type of interactions were significant for days to 50 per cent flowering, plant height, total fruits/ plant, gross yield/ plant, marketable fruits/ plant, marketable yield/ plant, locules per fruit, pericarp thickness, fruit length, fruit shape index, TSS, titrable acidity, carotenoid content, dry matter content, moisture content and TSS-AR ratio.Additive component was more pronounced than dominance component for all the traits except pericarp thickness, locules per fruit, dry matter content and moisture content. Degree of dominance was in the range of incomplete dominance for all the traits except pericarp thickness, locules per fruit, dry matter content and moisture content. Genetic variance revealed from triple test cross progenies can be exploited by intermating selected individuals in early segregating generations with delayed selection in later generations, diallel selective mating/biparental mating or recurrent selection followed by pedigree method to exploit both additive and non-additive components as well as epistasis. Line × tester analysis revealed the preponderance of non-additive gene effects for most of the traits viz. days to 50 per cent flowering, days to first harvest, duration of fruit harvest, plant height, fruit length, fruit width, fruit shape index, pericarp thickness, locules/fruit, total fruits/plant, marketable fruits/plant, total yield/plant, TSS, ascorbic acid content, titrable acidity, pH, carotenoid content, dry matter content, moisture content and TSS-AR ratio while additive gene effects for marketable yield per plant. Lines DPT 4 and DPT 1 were found to be good general combiners for most of the traits. The cross-combinations DPT 1×12-1, DPT 1× Palam Pride, DPT 4×12-1 and 2015/TOINVAR-4×12-1 exhibited high heterosis, SCA and per se performance for majority of traits, therefore were rated as potential crosses. As a result, it would be helpful to exploit tomato hybrids, particularly those that showed high SCA in the current study for the development of hybrids.
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    ThesisItemOpen Access
    GENETIC EVALUATION OF CMS LINES AND THEIR MAINTAINERS FOR YIELD AND HORTICULTURAL TRAITS IN CABBAGE (Brassica oleracea var. capitata L.)
    (CSKHPKV, Palampur, 2019-06) Sharma, Shaina; Chadha, Sanjay
    The present investigation entitled “Genetic evaluation of CMS lines and their maintainers for yield and horticultural traits in cabbage (Brassica oleracea var. capitata L.)” was carried out at „Vegetable Research Farm‟ of the Department of Vegetable Science and Floriculture, CSKHPKV Palampur with the objectives to identify the promising CMS lines and their maintainers and to find out genetic variability, interrelationship and direct and indirect contribution of component traits on marketable yield. Twenty three genotypes (15 CMS lines+ six maintainer lines + two checks namely KGMR-1 and Varun) were evaluated in Randomized Complete Block Design with three replications during Rabi, 2017-18. Analysis of variance for all the traits viz., plant spread (cm), number of non-wrapper leaves, polar diameter (cm), equatorial diameter (cm), days to harvest, compactness of head (g/cm3), TSS (0Brix), ascorbic acid content (mg/100g), gross head weight (g), net head weight (g), marketable heads per plot and marketable head yield per plot (kg) exhibited the presence of sufficient variability in the germplasm as revealed by significant differences for all the characters. Based upon overall performance, genotypes namely II-MCMS (257.63q/ha), GA(P)-105CMS (244.29q/ha), KGAT-II (238.10q/ha), II-SCMS (236.86q/ha) and III- 105CMS (233.90q/ha) were found to be the most promising for marketable head yield (q/ha) and various other horticultural traits. High PCV estimates were recorded for marketable head yield per plot and net head weight. High heritability coupled with moderate genetic advance was observed for gross head weight, net head weight, number of non-wrapper leaves, head shape index and TSS. Estimates of correlation coefficient revealed significant positive association of marketable head yield per plot with net head weight, equatorial diameter, gross head weight, polar diameter, plant spread and ascorbic acid content. High positive direct effect on marketable head yield per plot was observed by equatorial diameter, head shape index, compactness of head, gross head weight, marketable heads per plot, polar diameter, days to harvest and TSS.