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Subject: Vegetable Science × End date: 2020 ×
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Now showing 1 - 9 of 164
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    ThesisItemOpen Access
    Genetic variability and interrelationship among horticultural traits in faba bean (Vicia faba L.)
    (palampur, 2017-06-30) Sharma, Simran; Singh, Yudhvir
    The present investigation entitled, “Genetic variability and interrelationship among horticultural traits in faba bean (Vicia faba L.)” was undertaken at the Research Farm of the „Department of Vegetable Science and Floriculture‟, College of Agriculture, CSK HPKV, Palampur during winter season 2015-16. The experimental material comprising of thirty five genotypes of faba bean including one check namely, „Vikrant-B‟ were evaluated in randomized block design over three replications to assess the nature of genetic variability, association among various traits, and their direct and indirect effects on pod yield per plant for effective selection. Data were recorded on nineteen characters viz., days to 50 per cent flowering, node at which first flower appears, branches per plant, pods per node, nodes per plant, plant height (cm), days to maturity, pod length (cm), pods per plant, pod yield per plant (g), seeds per pod, seed yield per plant (g), seed size (cm), 100-seed weight (g), harvest index ( per cent), total soluble solids (oBrix), dry matter ( per cent), ascorbic acid (mg/100g) and protein content ( per cent). In addition, morphological characterization for seed colour was also recorded visually. The observations were recorded on ten competitive plants which were randomly selected in each entry over the replications. On the basis of mean performance, „Local-1-C‟ was the top ranking genotype for pod yield per plant which significantly outperformed all the genotypes with an increase in yield of 44.58 per cent over check „Vikrant-B‟. In addition, fifteen genotypes produced pod yield similar to that of „Vikrant-B‟. HB-123-B (54.00g), HB-123-C (51.00g), HB-511-C (48.00g), PRT-7-B (46.87g), HB-40-A (46.67g) and HB-193-A (45.33g) were the top performing genotypes among them. The superior performance of these genotypes for fresh pod yield per plant was mainly attributed to their superior/comparable performance for pods per node, nodes per plant, pod length, pods per plant, branches per plant, seed yield per plant, 100-seed weight to that of best performing check „Vikrant-B‟. High heritability along with high genetic advance was observed for node at which first flower appears, pods per plant, harvest index, protein content and pod yield per plant indicating the inheritance of these characters under the control of additive gene action and selection would be more effective for their improvement. Based on correlation and path coefficient analysis, nodes per plant, pods per plant, branches per plant, seed yield per plant, seed size, 100-seed weight, harvest index and protein content could be considered as the best selection parameters for evolving high yielding genotypes.
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    ThesisItemOpen Access
    BIOCHEMICAL AND PHYSICAL CHARACTERIZATION OF EGGS OF HIMSAMRIDHI BREED AND ITS COMPARISON WITH DAHLEM RED
    (CSKHPKV Palampur, 2020-10-28) SHARMA, SURUCHI; Geetanjali Singh
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    ThesisItemOpen Access
    VARIABILITY AND ASSOCIATION STUDIES IN F4 PROGENIES OF TOMATO (Solanum lycopersicum L.)
    (CSHHPKV Palampur, 2017-06-15) SEHGAL, NIDHI; Chadha, Sanjay
    Tomato (Solanum lycopersicum L.) is one of the most important solanaceous vegetable crops grown widely all over the world. Its cultivation in commercial growing pockets of Himachal Pradesh is severely affected due to bacterial wilt disease caused by Ralstonia solanacearum Smith. Resistant genotypes have been developed at various research centers, located within the country and abroad but these genotypes were not found suitable for growing in Himachal Pradesh as these are lacking in one or other characteristics. The present investigation entitled “Variability and association studies in F4 progenies of tomato (Solanum lycopersicum L.)” was undertaken by evaluating 18 bacterial wilt resistant F4 progenies viz., (Palam Pride × BWR-5)-1-15, (Palam Pride × BWR-5)-1-16, (Palam Pride × BWR-5)-2-3, (Palam Pride × BWR-5)-2-6, (Hawaii 7998 × Palam Pride)-2-7, (Hawaii 7998 × BWR-5)-3-1, (CLN2070B-1 × 12-1)-2-8, (CLN2070B-1 × 12-1)-2-16, (CLN2123A-1 × BWR-5)-3-6, Avtaar-1-3, Avtaar-1-13, Avtaar-1-15, (12-1 × BWR-5)-1-7, (12-1 × BWR-5)-2-2, (12-1 × BWR-5)-2-13, (12-1 × BWR-5)-2-14, (12-1 × BWR-5)-2-18 and (12-1 × BWR-5)-2-19 along with two bacterial wilt resistant standard checks (Palam Pink and Palam Pride) to identify the promising progenies on the basis of nature and extent of genetic variability, association among component traits and marketable yield and direct and indirect effects of each of the component traits on marketable yield. These genotypes were evaluated in Randomized Complete Block Design with three replications in summer-rainy season’2016 at the Vegetable Research Farm of the Department of Vegetable Science and Floriculture, COA, CSK HPKV, Palampur. To ascertain the severity of the disease, two susceptible checks, Roma and Marglobe were planted at every alternate 11th row in the experiment. Analysis of variance revealed significant differences among the genotypes for all the traits except plant survival. The maximum marketable yield per plant was produced by the progenies Avtaar-1-3 (0.87kg) followed by (12-1 × BWR-5)-2-18 (0.76kg), (Hawaii 7998 × BWR-5)-3-1 (0.75kg), (Palam Pride × BWR-5)-2-3 (0.70kg), (Palam Pride × BWR-5)-1-16 (0.69kg), (CLN2070B-1 × 12-1)-2-8 (0.66kg), Avtaar-1-15 (0.63kg) and (12-1 × BWR-5)-2-14 (0.62kg). These top yielding progenies also excelled in many other horticultural traits. For most of the characters high to moderate PCV and GCV estimates along with high heritability and genetic advance were observed. The estimates of PCV were higher than corresponding GCV for all the characters studied which indicated that the apparent variation is not only due to genotypes but also due to the influence of environment. Marketable yield per plant was positively and significantly correlated with total and marketable fruits per plant, gross yield per plant and pericarp thickness at phenotypic and genotypic levels. Days to 50 per cent flowering, locules per fruit, plant height and total soluble solids had significant negative association with marketable yield per plant at genotypic level. Path coefficient analysis revealed that marketable fruits per plant and average fruit weight had the maximum positive contribution (direct and indirect) towards marketable yield per plant, hence these traits require special attention to improve upon marketable yield and other component traits.
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    ThesisItemOpen Access
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    ThesisItemOpen Access
    GENETIC ANALYSIS FOR FRUIT YIELD AND COMPONENT TRAITS IN DIFFERENT F2 GENERATIONS OF BRINJAL (Solanum melongena L.)
    (CSKHPKV. Palampur, 2020-09-28) PRIYANKA; Katoch, Viveka
    The present study entitled “Genetic analysis for fruit yield and component traits in different F2 generations of brinjal (Solanum melongena L.)” was undertaken to analyse genetic variability in brinjal and to identify the most promising segregating progenies during kharif, 2019 at the Research Farm, Department of Vegetable Science & Floriculture, CSK HPKV, Palampur. Bacterial wilt resistant parents viz., Res-1, Res-2, Hisar Shyamal, Arka Nidhi and Arka Keshav along with fifteen F2 lines were evaluated in randomized complete block design with three replications for yield and related horticultural traits. Significant differences were revealed from analysis of variance in the lines for all the characters studied. On the basis of overall performance, more particularly due to marketable fruit yield per plant and bacterial wilt resistance, KRS among the long type and HN, HK and KH among the oblong type have been identified as superior lines which could be used in further breeding programme. Higher range of PCV and GCV together with high heritability and high genetic advance were obtained for fruit diameter, fruit weight, number of marketable fruits per plant and marketable fruit yield per plant. Correlation analysis revealed that the yield could be improved through direct selection of traits namely, fruit diameter, fruit weight, number of marketable fruits per plant, number of primary branches per plant, plant height and harvest duration. From path analysis, it was clear that number of marketable fruits per plant followed by fruit weight were the major characters and had maximum positive direct effect on yield.
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    ThesisItemOpen Access
    GENETIC EVALUATION OF TOMATO (Solanum lycopersicum L. ) HYBRIDS UNDER PROTECTED ENVIRONMENT
    (CSKHPKV. Palampur, 2020-06-20) WAIBA, KANCHHI MAYA; Sharma, Parveen
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    ThesisItemOpen Access
    EVALUATION OF CAULIFLOWER (Brassica oleracea L. var. botrytis) GENOTYPES AND DETERMINATION OF SELECTION PARAMETERS FOR ITS GENETIC IMPROVEMENT
    (CSKHPKV. Palampur, 2020-07-13) SINGH, JAGMEET; Sharma, Akhilesh
    The present investigation was planned to study the genetic variability, association among yield and component traits and their direct and indirect effects for effective selection, and to study the extent of genetic diversity. The experimental material comprising of 26 genotypes belonging to mid late and late group was evaluated in randomized complete block design with three replications for two consecutive years during winter season of 2018-19 and 2019-20. Data were recorded on marketable curd weight and its 18 related traits. Sufficient genetic variability was observed for yield and component traits. The evaluation of mean performance revealed that DPCa CMS 1 showed advantage of 27% for marketable curd weight over standard check Palam Uphar followed by DPCaf W3, DPCaf US and DPCaf 30 which was mainly due to significant contribution of curd depth, curd diameter, leaf length, leaf width, optimum plant frame, curd compactness/solidity, gross and net plant weight. Moderate PCV and GCV were reported for days to curd initiation, curd solidity, gross plant weight, net curd weight and marketable curd weight irrespective of years and pooled over years whereas plant characteristics in general showed low PCV and GCV indicating minimal differences among these genotypes. High heritability coupled with high genetic advance was observed for gross plant weight, net curd weight and marketable curd weight over the years in addition to curd solidity and days to curd initiation in either of the years. Correlation and path analysis indicated that gross plant weight, harvest index, curd size index, curd solidity, curd depth and net curd weight could be a paying preposition and beneficial for evolving high yielding genotypes. The multivariate analysis revealed considerable genetic diversity among genotypes and these were arranged into three, six and seven clusters during 2018-19, 2019-20 and in pooled years, respectively with maximum genotypes in cluster I. Days to curd initiation, leaves/plant, curd solidity and gross plant weight during both the years had maximum contribution towards the genetic divergence. Based on genetic divergence studies, genotypes namely, DPCaf W3, DPCaf US, DPCa CMS 1, DPCa CMS 2, DPCaf 1, DPCa CMS 3, DPCaf 30, DPCaf 13 and DPCaf S5-1 offer promise as breeding lines or potential parents to be used in breeding programmes to get desirable transgressive segregants. Visual observations showed that majority of the genotypes had Type No.3 plants with semi-incurving/incurving leaves and white to snow white curds with no riceyness.
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    ThesisItemOpen Access
    Genetic analysis of the bacterial wilt resistant intraspecific hybrids in bell pepper (Capsicum annuum L. var. grossum Sendt.)
    (CSKHPKV. Palampur, 2020-08-11) DHILLON, HARNOOR KAUR; Sood, Sonia
    The present investigation entitled “Genetic analysis of the bacterial wilt resistant intraspecific hybrids in bell pepper (Capsicum annuum L. var. grossum Sendt.)” was carried out at the Experimental Farm of Department of Vegetable Science and Floriculture, CSK HPKV, Palampur to determine reciprocal hybrid differences, heterosis, the effects of general and specific combining abilities, gene action and to identify high yielding bacterial wilt resistant hybrid(s) by following full diallel mating design involving six diverse lines. Parents, their 30 cross combinations along with standard check „Hybrid Indira‟ were evaluated in Randomized Block Design with three replications during summer-rainy season of 2019. Data were recorded on fruit yield with related horticultural traits and reaction to bacterial wilt disease. Sufficient genetic variability was observed for all quantitative and quality traits except bacterial wilt incidence. The diallel analysis revealed significant differences due to parents, hybrids and parents vs hybrids for majority of the traits indicating appreciable diversity in the experimental material. Significant reciprocal differences were observed for all the studied traits except fruit width indicating the importance of correct direction of crossing during hybrid development. A wide variation in magnitude and direction of heterosis was noticed for majority of the traits with maximum manifestation for days to 50% flowering, plant height, fruit length, fruits per plant and marketable fruit yield per plant. Hybrids DPBWRC-6-1 × EC-464107, DPBWRC-6-1 × EC-464115, EC-464107 × DPBWRC-6- 1, DPBWRC-1 × EC-464115 and DPBWRC-6-1 × DPBWRC-29 were the most promising crosses with significant heterobeltiosis and economic heterosis for fruit yield and yield related traits and showed maximum consistency by retaining their ranking among top crosses. Among visually observed characters, dark green, green and yellowish green fruit colour at horticultural maturity, sunken and cordate/lobate fruit shape at blossom and pedicel attachment, respectively and resistance reaction to bacterial wilt disease in all parents and hybrids were recorded. Parents DPBWRC-6-1, DPBWRC-39, EC-464107 and EC-464115 were observed to be good general combiners for fruit yield with component traits. Thus desirable cross combinations involving both or one of these as parents resulted in significant desirable SCA effects and heterosis. DPBWRC-29 × EC-464107, DPBWRC-29 × DPBWRC-1, DPBWRC-39 × DPBWRC-1 and EC-464115 × DPBWRC-29 were most promising crosses on the basis of SCA effects for fruit yield and related traits. The non-additive gene action was predominant for majority of the traits. Thus the improvement of these characters would be effective through heterosis breeding. Based on per se performance, SCA effects and heterosis, DPBWRC-6-1 × EC-464107, DPBWRC-1 × EC-464115 and DPBWRC-6-1 × DPBWRC-29 were the most promising crosses for obtaining superior progenies. Hybridization followed by selection in later generations would be effective future breeding strategy
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    ThesisItemOpen Access
    OPTIMISATION OF SOWING TIME OF SNAP PEA (Pisum sativum var. saccharatum) GENOTYPES
    (CSKHPKV. Palampur, 2020-07-20) ESHANEE; Sharma, Akhilesh
    The present investigation was undertaken to optimize the sowing time of edible pod pea genotypes. The experiment comprising of 12 treatments i.e. three sowing dates (21st October, 5th November and 20th November) and four genotypes namely, DPEPP- 15-1, DPEPP-10-1, Arka Apoorva and Meethi Phali was conducted in split plot design in three replications at the Experimental Farm of Department of Vegetable Science and Floriculture, CSKHPKV, Palampur for two consecutive years during winter 2018-19 and 2019-20. Both the factors i.e. sowing dates and varieties significantly influenced the yield and majority of its attributing traits. Early sown crop on 21st October resulted in early flowering and first picking along with higher pod yield, pods/plant, nodes/plant, pod length, harvest duration, total soluble solids (seeds and whole pod), ascorbic acid, seed yield, straw yield, biological yield and monetary gains which was followed by 5th November sown crop. Among the varieties, DPEPP- 15-1 was the most promising genotype followed by DPEPP-10-1 for yield and yield contributing parameters viz., pods/plant, pod yield, harvest duration, seeds/pod, average pod weight, seed yield, straw yield, biological yield, harvest index and 100 seed weight besides provided high gross return, net return and B:C ratio. DPEPP-10-1 showed significantly superior performance for early harvest, more nodes/plant, pod length, small internodal length, high total soluble solids (seeds and whole pod) and ascorbic acid. Both these genotypes significantly outperformed the recommended varieties Arka Apoorva and Meethi Phali. Genotypes DPEPP-15-1 and DPEPP-10-1 had advantage of 36 and 27% for fresh yield and that of 53 and 45% for seed yield (q/ha) over variety Arka Apoorva on pooled basis, respectively. Interaction effects between sowing dates and varieties revealed that sowing of DPEPP-15-1 on 21st October followed by 5th November had significantly higher pod and seed yield, pods/plant, harvest duration, straw yield and biological yield besides provided maximum monetary gains whereas DPEPP-10-1 got second rank but they significantly outperformed the check varieties Arka Apoorva and Meethi Phali. They also provided maximum monetary gains under early sown conditions with net return of Rs.2.48 lakhs/ha and 2.35 lakhs/ha, respectively.