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Theses

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2016 - 201823
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Subject: Vegetable Science × End date: 2019 × Start date: 2016 × Type: Thesis ×
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Now showing 1 - 9 of 23
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    ThesisItemOpen Access
    Combining ability for quantitative traits and inheritance and marker based studies for rust resistance in garden pea [Pisum sativum (L.) var. hortense]
    (G.B. Pant University of Agriculture and Technology, Pantnagar - 263145 (Uttarakhand), 2018-09) Yadav, Hirdesh; Singh, Y.V.
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    ThesisItemOpen Access
    Response of potato (Solanum tuberosum L.) to zinc application
    (G.B. Pant University of Agriculture and Technology, Pantnagar - 263145 (Uttarakhand), 2018-05) Kanwar, Prakash; Manoj Raghav
    The present investigation was undertaken to evaluate the “ Response of potato (Solanum tuberosum L.) to zinc application” at Vegetable Research Centre of G.B. Pant University of Agriculture & Technology, Pantnagar, Udham Singh Nagar, (Uttarakhand) during rabi season of 2016-2017. The experiment was laid out in randomized block design with three replication and ten treatments. During the study, observation on per cent emerge nce, leaf area index at 30 and 45 DAP, stem diameter at 45 DAP, plant height at 30 and 45 DAP, haulm weight per plot, Total number of tubers per hill, weight of tubers per hill, total tuber yield per plot, total tuber yield per hectare, harvest index, dry matter content, starch content, specific gravity of tubers, nitrogen, phosphorus and potash uptake by haulm, tuber, plant, available zinc content of soil before planting, available zinc content of soil after harvesting, available zinc content in potato plant at de-haulming, available zinc content in potato tubers were recorded. Besides this, to assess the profitability of treatments, cost of cultivation, net profit and benefit: cost ratio were also worked out. The findings of present investigation revealed that the performance of potato crop was significantly influenced by different zinc application. Among all treatments, treatment T5(RDF of NPK + 6.0 kg Zn at the time of planting) was found best with respect to overall plant growth, yield and quality parameters with total tuber yield (33.9 t/ha) , net profit (`273087.00), benefit: cost ratio (2.3). Based on overall performance, it could be concluded that under prevalent climatic conditions of Uttarakhand tarai region, application of zinc @ 6 kg/ha at the time of planting along with 160:100:120 kg N:P2O5:K2O can be recommended to get maximum tuber yield and higher net returns from the potato crop. Hence, recommended for commercial cultivation, provided all other scientific management practices are followed.
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    ThesisItemOpen Access
    Heterosis, combining ability and gene action for yield and quality traits in cowpea (Vigna unguiculata (L.) Walp.)”
    (G.B. Pant University of Agriculture and Technology, Pantnagar - 263145 (Uttarakhand), 2018-01) Pallavi; Singh, Y.V.
    The present investigation involving two experiments was carried out during 2014-2015 at G.B.Pant University of agriculture and Technology, Pantnagar. First experiment was undertaken to estimate the relative importance of combining ability and heterosis for 13 quantitative characters including seed yield in cowpea (Vigina unguculata (L). Walp). Second experiment was conducted to understand the nature of gene effects involved in the inheritance of various quantitative characters. Pant Lobia-1, Pant Lobia-2, Pant Lobia-3, Pant Lobia-5, PGCP-59, PGCP-63 and PVCP-20 along with their 21 F1’s were evaluated for genetic analysis using Griffing’s numerical approach (1956). Six generations viz;- P1, P2, F1, F2, BC1 and BC2 of each two families, PGCP-63 X Pant Lobia-1 (Family 1), Pant Lobia-3 X Pant Lobia-1 (Family 2), were evaluated in Compact Family Block Design with three replications and data were subjected to generation mean analysis following scaling test (Mather 1949). Analysis of variance revealed significant mean squares of general and specific combining abilities for all the traits studied. Pant lobia-2, Pant Lobia-3 and Pant Lobia-5 had good GCA for seed yield per hectare. Pant Lobia-1 was best general combiner for number of pods per plant and 100-seed weight whereas; Pant Lobia-2 for number of pods per plant, seed weight per plant, seed yield per hectare, iron content and zinc content. Pant Lobia-3 for seed yield per hectare, seed weight per plant, zinc content and days to pod maturity; Pant Lobia-5 for plant height, seed yield per hectare, 100-seed weight, seed weight per plant and iron and zinc content; PGCP-59 and PGCP-63 were for plant height; PVCP-20 for green pod weight per plant and pod length. The hybrids Pant Lobia-2 X Pant Lobia-1 and PGCP-63 x Pant Lobia-5 revealed highest SCA effects for seed yield per hectare. Specific combing ability analysis indicated that the cross Pant Lobia- 3 x Pant Lobia-2 was best cross combination for days to 1st flowering, Pant Lobia-2 x Pant Lobia-1 was for number of pods per plant, seed weight per plant, green pod yield per plant and seed yield per hectare; PVCP-20 x PGCP-63 for pod length, Pant Lobia-3 x Pant Lobia-2 for number of seeds per pod; PVCP20 x Pant Lobia-5 g for green pod weight per plant; PVCP-20 x Pant Lobia-3 for days to pod maturity; Pant Lobia-3 x Pant Lobia-1 for 100-seed weight and Pant Lobia-5 x Pant Lobia-1 for plant height and iron content and Pant Lobia- 5 x Pant Lobia-3 for zinc content. The magnitude of relative heterosis, heterobelteosis and economic heterosis for seed yield per hectare ranged from 9.03 to 67.10%, 6.20 to 54.47% and 4.95 to 82.75% respectively. Significant estimates of additive [d] and dominance [h] effects as well as all three types of epistasis were observed for most of the quantitative characters in all the two families. The opposite signs of [h] and [l] indicated that duplicate epistasis was important in inheritance for some of the traits in both the families. In the present investigation both additive and non-additive gene action are involved in controlling seed yield and related traits. The presence of additive gene action suggested that a part of the heterosis can fixed in subsequent generation to take advantage in further selection. The preponderance of non-additive gene action, however brought out that heterosis component could be explained in hybrid development in cowpea.
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    ThesisItemOpen Access
    Effect of black plastic mulch on growth and yield of capsicum cv. Indra (F1 hybrid) under different cultivation environments
    (G.B. Pant University of Agriculture and Technology, Pantnagar - 263145 (Uttarakhand), 2017-06) Raturi, Shobhna; Uniyal, S.P.
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    ThesisItemOpen Access
    Characterization of brinjal (Solanum melongena L.) germplasm
    (G.B. Pant University of Agriculture and Technology, Pantnagar - 263145 (Uttarakhand), 2017-06) Banerjee, Swadesh; Verma, Alka
    An experiment on “Characterization of Brinjal (Solanum melongena L.) Germplasm” was undertaken during kharif season of 2016. Thirty-eight genotypes including two checks were evaluated in RBD with three replications in Vegetable Research Centre GBPUA&T, Pantnagar. Analysis of variance revealed highly significant differences among genotypes for all the characters studied. The genotypic and phenotypic coefficients of variation were high for fruit length, fruit diameter, and number of fruits per plant, fruit weight, marketable yield per plant and yield per plant. A narrow range of genetic difference between PCV and GCV of these traits indicates that a little influence of environment on phenotypic expression of these traits. Very high heritability along with high genetic advance as per cent over mean was recorded for the character like fruit diameter, fruit weight indicating direct selection for these traits would prove useful. Marketable yield per plant was found positively and significantly correlated with number of primary branches, number of fruits per plant and yield per plant. This suggested selection for these traits would be more useful to improve the marketable yield per plant in brinjal. The higher magnitude of positive direct effect by yield per plant, fruit weight, number of fruit per plant, days to 50% flowering, marketable yield per plant, plant height, number of primary branches and days to first harvest on total yield per hectare was observed suggesting their true, positive and significant association with yield per hectare. Therefore, direct selection for these traits would be fruitful for improvement of yield. Thirty eight genotypes were classified into seven clusters following cluster analysis. Maximum intra-cluster distance was observed in cluster III showing existence of wide genetic divergence. Maximum inter-cluster D2 values was observed between the clusters IV and VII indicating that the genotypes in these clusters can be used as a parents in hybridization programme. Among the characters, number of fruits per plant (31%) shows maximum contribution towards the diversity followed by fruit diameter (25%) and fruit weight (16%). The genotypes Pusa Kaushal, Pusa Bhairav, Pusa shyamla, GBL-1 and SMB-115 as long fruit shape, PB-70 and Debmallika as round fruit shape were found promising for the entire yield related traits. Above statistical information will help for further improvement of this crop.
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    ThesisItemOpen Access
    Variability, heritability and genetic advance studies in mid-season cauliflower (Brassica oleracea var. botrytis L.)
    (G.B. Pant University of Agriculture and Technology, Pantnagar - 263145 (Uttarakhand), 2017-06) Vivek Kumar; Singh, Dhirendra Kumar
    The present study was undertaken at Vegetable Research Center, G.B. Pant University of Agriculture and Technology, Pantnagar, Udham Singh Nagar (U.K.) during September- December, 2015. Fifty seven genotypes of cauliflower were grown in Augmented Block Design II including five checks (Pusa Early Synthetic, Pant Gobi-4, Pant Gobi-3, Pusa Sharad, Pusa Pausjha) which were arranged in four blocks with eighteen genotypes in each block inclusive of five checks. The study was primarily focused on assessing variability, heritability, genetic advance, correlation coefficient, path coefficient, principal component analysis and D2 analysis. Observations were recorded on 16 quantitative characters viz., leaf length, leaf width, petiole length, plant height, plant spread, number of leaves per plant, stalk length, days to curd maturity, gross curd weight, marketable curd weight, curd length, curd breadth, net curd weight, harvest index, curd size index and curd yield per hectare. Analysis of variance revealed significant differences among all the genotypes for majority of the characters except plant spread, curd length and curd size index. On the basis of yield contributing characters the following genotypes were found promising viz., INBPCF 120, 2013/CAUMVAR-6, PCF-93, PG-5 and PCF-246. High heritability coupled with greater genetic advance was observed for gross plant weight. Curd yield per hectare showed positive and highly significant correlation with marketable curd weight, gross plant weight, net curd weight, curd breadth and plant height. Path coefficient analysis revealed that net curd weight exhibit high positive direct effect towards total yield while harvest index exerts a negative direct effect towards curd yield per hectare. The Principal component analysis showed that the first principal component account maximum 45.69% variation of total variation, while the first five principal component axes together with explained 81.72% variation, suggesting first five principal axes are adequate to explain the variation in reduced dimension. Genetic divergence through D2 analysis revealed maximum inter-cluster distance between clusters IV and VII followed by cluster IV and VIII therefore, it is recommended that genotypes grouped under cluster IV, VII and VIII were found promising for most of the yield attributes, thus can be utilized in future cauliflower breeding programme for the development of superior varieties.
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    ThesisItemOpen Access
    Studies on heterosis, combining ability and molecular diversity in cucumber (Cucumis sativus L.)
    (G.B. Pant University of Agriculture and Technology, Pantnagar - 263145 (Uttarakhand), 2017-07) Sahoo, Tusar Ranjan; Singh, D.K.
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    ThesisItemOpen Access
    Effect of nitrogen scheduling on growth, yield and quality of potato (Solanum tuberosum L.)
    (G.B. Pant University of Agriculture and Technology, Pantnagar - 263145 (Uttarakhand), 2017-07) Pandey, Pooja; Manoj Raghav
    The present investigation entitled “Effect of nitrogen scheduling on growth, yield and quality of potato (Solanum tuberosum L.)” was carried out during winter season of two consecutive years 2014-15 and 2015-16 at Vegetable Research Centre, G.B. Pant University of Agriculture and Technology, Pantnagar, U. S. Nagar, Uttarakhand. The experiment was laid out in randomized block design with three replications having ten treatments in each. During the study, observations for growth characters, yield characters, quality attributes, nitrogen uptake, nitrogen use efficiency and apparent recovery were analyzed. Besides of this, to assess the profitability, cost of cultivation, net profit and benefit-cost ratio also were worked out. Two year investigation revealed that nitrogen scheduling significantly influenced the performance of potato crop. Among all the treatments, T9 (25% N of RDF as basal + 50% top dressing at 25 DAP + one foliar spray of urea @ 3% at 40 DAP) was proved best with respect to overall plant growth, tuber yield (36.62 t ha-1 and 31.53 t ha-1) and nitrogen apparent recovery (65.8 % and 62.5 %) and also registered maximum benefit-cost ratio (1.69 and 1.48) during both the years, respectively. It not only recorded 7.23 % higher yield over recommended treatment T1 (50% N of RDF as basal + 50% top dressing at 25 DAP) but also save 15 % nitrogen (25 kg ha-1). While, treatment T7 (50% N of RDF as basal + two foliar spray of urea @ 3% at 25 & 40 DAP) produced maximum quality tubers having dry matter (19.4 % and 19.3 %) and specific gravity (1.09 g/cm3) during both the years, respectively. Based on overall performance, it could be concluded that under prevalent climatic conditions of tarai region of Uttarakhand, 25% N of RDF as basal + 50% top dressing at 25 DAP + one foliar spray of urea @ 3% at 40 DAP can be recommended to get maximum potato tuber yield and higher net return whereas, 50% N of RDF as basal + two foliar spray of urea @ 3% at 25 & 40 DAP can be recommended to get quality tubers.
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    ThesisItemOpen Access
    Studies on morphological and biochemical characterization of cucumber (Cucumis sativus L.) germplasm
    (G.B. Pant University of Agriculture and Technology, Pantnagar - 263145 (Uttarakhand), 2017-07) Ahirwar, Chandan Singh; Singh, D.K.