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ThesisItem Open Access Studies of qualitative and quantitative characters of okra [Abelmoschus esculentus (L). Moench] genotypes(G.B. Pant University of Agriculture and Technology, Pantnagar - 263145 (Uttarakhand), 2009-08) Arvind Kumar; Singh, Durvesh KumarThesisItem Open Access Study on potato (Solanum tuberosum L.) based crop sequences under rainfed mid-hill condition of Uttarakhand(G.B. Pant University of Agriculture and Technology, Pantnagar - 263145 (Uttarakhand), 2009-07) Kipgen, Chinpilhing; Uniyal, S.P.To evaluate eight potato based crop sequences viz., potato-carrot, potato-turnip, potato- radish, potato-cauliflower, potato-cabbage, potato-broccoli, potato-pea and potato-amaranthus, an investigation was carried out at Vegetable Science Research unit of Hill Campus Ranichauri (G. B. Pant University of Agriculture & Technology), Tehri Garhwal (Uttarakhand) during spring-summer (potato), rainy (carrot, turnip, radish, cauliflower, cabbage) and rainy-autumn (broccoli, pea and amaranthus) season, 2008. The experiment was laid out in Randomized Complete Block Design with three replications. During the study, the yields of individual crops were recorded and based on selling prices, potato equivalent yield (PEY), production efficiency (PE), land use efficiency (LUE) and economics of the sequences were worked out. In order to assess the residual effect of first crop (potato) on subsequent crops of the sequences, soil analysis to different soil parameters (pH, organic matter, available N, P, and K) was also performed. Findings of the investigation revealed that amongst eight sequences, potato-radish proved the best in respect to potato equivalent yield (626.66 qha-1) and net profit (Rs. 1,35,241.70 ha-1). This sequence had recorded an additional net income of Rs. 90,700.70 ha-1 over the conventional sequence, potato-amaranthus. In addition, the other sequences which showed higher profitability in the investigation were potato-cabbage (Rs. 1,07,041.70 ha-1), potato-broccoli (Rs. 1,04,175.00 ha-1), potato-carrot (Rs. 91,375.00 ha-1) and potato-pea (Rs. 85,191.66 ha-1) in decreasing order. Based on the overall performance, it can be concluded that under the prevalent climatic/ cultivation conditions of mid hill rainfed Uttarakhand, potato-radish is the most profitable/suited sequence, hence, recommended for farmer‟s commercial cultivation.ThesisItem Open Access Evaluation of new potato (Solanum tuberosum L.) hybrids under mid hill rainfed condition of Uttarakhand(G.B. Pant University of Agriculture and Technology, Pantnagar - 263145 (Uttarakhand), 2009-01) Raturi, Harish Chandra; Uniyal, S.P.ThesisItem Open Access Studies on interspecific hybridization in brinjal (Solanum melongena L.)(G.B. Pant University of Agriculture and Technology, Pantnagar - 263145 (Uttarakhand), 2007-06) Karmakar, Pradip; Singh, Y.V.The present investigation was conducted during autumn winter season of 2005-06 and 2006-07 at Vegetable Research Centre of Gobind Ballabh Pant University of Agriculture and Technology, Pantnagar, U.S Nagar, Uttarakhand. The experiment was designed to study the crossability relationship among the two commercial cultivars Pant Rituraj, Pant Samrat and wild relatives viz. Solanum gilo, S. aethiopicum and S. khasianum; morphology of the parents and their hybrids and to screen these genotypes against shoot and fruit borer, jassid, phomopsis blight and bacterial wilt. The experiment was laid out in randomized block design with three replication. The findings of the present investigation revealed that cultivated species Solanum melongena was cross-compatible with S. gilo and S. aethiopicum despite the parthenocarpic fruit set in the cross with S. gilo. Morphological variation was observed in the F1 hybrids from their respective parents, while the cross S. melongena cv. Pant Rituraj x S. aethiopicum showed morphology of S. aetiopicum. Among the parents S. khasianum was recorded as resistant to shoot and fruit borer, jassid, phomopsis blight and bacterial wilt; S. gilo showed resistant to shoot and fruit borer, jassid and phomopsis blight while S. aethiopicum was found as promising resistance source against bacterial wilt. Among the F1 hybrids, crosses involving S. gilo as one of the parent showed high level of resistance against shoot and fruit borer, jassid, phomopsis blight but the crosses of S. aethiopicum were ratted as resistant to bacterial wilt. Successful gene transfer from these wild relatives is possible through back cross except from S. khasianum which needs the support of Biotecnological tools.ThesisItem Open Access Effect of genotypes, environment and their interactions on growth, yield and yield attributes in chilli (Capsicum annuum L.)(G.B. Pant University of Agriculture and Technology, Pantnagar - 263145 (Uttarakhand), 2007-07) Arora, Indu; Singh, Durvesh KumarAn experiment involving twenty four genotypes of chilli and three created environments (E0 – No spray, E1 – Single spray on NAA @ 40 ppm and E2 – Double spray of NAA @ 40 ppm) was carried out during spring summer season of the year 2006 at Vegetable Research Centre, Pantnagar to determine the best genotypes, suitable environment and their interactions for higher production. Out of the three environments, E2 was found better for red ripen fruit yield, number of fruits/plant, 100-seed weight, seed : husk ratio, minimum incidence of disease viz., anthracnose and leaf curl virus whereas, E1 performed better for fresh and dry weight of shoots/plant, fruit length, fruit periphery, weight of fruits/plant, number and weight of seeds/fruit. Significant variations were observed for all the 18 characters. Among genotypes viz., G23 (PC-2062), G24 (PC-2064) and G22 (PC-2057) produced significantly more number of fruits/plant and G20 (PC-7) followed by G21 (PC-56) and G2 (Co-4) performed better for weight of fruits/plant. Genotypes G23 and G21 produced 110.26 and 71.60 per cent higher yield over check variety Pant C-1, respectively. Longest fruits (13.59 cm) were obtained in G20 (PC-7) whereas higher TSS value (16.77°B) were recorded in G2 (Co-4). More number and weight of seeds/fruit were recorded in G22 (PC-2057). Out of all the 72 interactions, G23 E1 was found better for number and weight of fruits/plant whereas, G23E1 (254.42 q/ha), G22E1 and G2E2 produced higher red ripen fruit yield over rest of the interactions. Each genotypes produced variable results under different environments and for different characters. However, the G23 (PC-2062) produced highest fruit yield under single spray of NAA @ 40 ppm followed by PC-2057 whereas, (Co-4) produced higher yield under double spray of NAA (E2).ThesisItem Open Access Genetic variability in chilli (Capsicum annuum L.)(G.B. Pant University of Agriculture and Technology, Pantnagar - 263145 (Uttarakhand), 2008-06) Gaur, Geeta; Singh, Durvesh KumarAn experiment involving ninety three genotypes of chilli was carried out during spring summer season of the year 2007 at Vegetable Research Centre, G.B.P.U.&T, Pantnagar to determine the most promising and high yielding genotypes of chilli for cultivation and to select the important genotypes suitable to this area on the terms of their phenotypic and genotypic characterstices.The extent of genetic variability, heritability, genetic advance and correlation coefficient in respect of twenty five different characters regarding growth, yield, quality and incidence of diseases were studied under Tarai region of Uttarakhand. Wide variations were observed for all the characters indicating diverse genetic nature of the base population. The genotypes viz., SKAU-11, EC-519625, Selection-11, PC-2057, Indo Sem Yeda, HDC-75 and PC-7-1-2-1 were promising as they had more than two desirable traits. They produced higher yield over the checks Pant C-1, JCA-283 and LCA-206, respectively. There was high phenotypic variability was recorded for incidence of Leaf Curl Virus (49.93), followed by incidence of anthracnose (46.97) and seed yield /plant (37.66). Heritability estimates were high along with high genetic advance was observed for number of fruits/plant, shoot weight/plant and ascorbic acid content which could be improved by simple selection. The significant positive association of economic traits like number of branches/plant, number of fruits/plant, weight of fruits/plant, fruit body length and total fruit yield (q/ha) was recorded, suggesting that selection for these characters could lead to improvement in yield. Thus, emphasis should be given on these characters to improve yield potential.Incidence of anthracnose disease was found minimum in HSHP-154, HDC-75, DLC-524 and UtkalYellow and PC-56, KCS-2013, PC-7-1-2-UP and PC-2004-UP-13(a) should low incidence of leaf curl virus. However, nematode incidence was minimum in Indo Sem Dona, Pant Chilli-4, KCS-2013 and PC-56. These genotypes may be used in resistance breeding programme.The traits such as fruit yield, number of fruits/plant, weight of fruits/plant, seed weight/100 g of fruits are important yield attributing characters and deserved due weightage, while formulating selection strategies for improvement of chilli crop.ThesisItem Open Access Evaluation of bittergourd (Momordica charantia L.) cultivars under naturally ventilated polyhouse(G.B. Pant University of Agriculture and Technology, Pantnagar - 263145 (Uttarakhand), 2008-06) Bhatt, Jagdish Chandra; Singh, M.P.Seven cultivars of bittergourd were evaluated in randomized block design with the four replication at Vegetable Research Centre, G. B. Pant University of Agriculture & Technology, Pantnagar, U. S. Nagar, Uttarakhand. The experiment was conducted in winter season, of 2006-07. The objectives of the investigation were to evaluate promising open pollinated and hybrid cultivars of bittergourd in naturally ventilated polyhouse for their earliness, offseason and total yield potential, to screen out the best and high yielding cultivars of bittergourd specially suited for protected cultivation and also study the character association among the cultivars. The observations on fifteen characters related to plant growth, flowering, maturity and fruit yield were recorded. The seven cultivars having wide range of variation for most of the characters under study, similarly, the nature of extant of correlation among various characters varied. The high and positive correlation obtained between fruit yield per vine, number of fruits per vine, average fruit weight, number of nodes per vine and yield. The cultivars viz., Pant Karela-1, Pant Karela-2 and Kalyanpur Sona were found suitable and gave the good performance. Out of fifteen characters Pant Karela-2 showed good performance for ten characters and occupy first place among all the cultivars under polyhouse conditions followed by Pant Karela-1 and Kalyanpur Sona.ThesisItem Open Access Assessment of genetic diversity in potato (Solanum tuberosum L.)(G.B. Pant University of Agriculture and Technology, Pantnagar - 263145 (Uttarakhand), 2008-06) Kiran; Singh, DhirendraThe present investigation was undertaken at Vegetable Research Centre of G. B. Pant University of Agriculture and Technology, Pantnagar during rabi season of 2006-07. The experiment material consisted of 24 genotypes grown in Randomized Block Design with three replications. Observations were recorded for twelve tuber yield and their contributing characters viz., emergence percentage at 30 days after sowing, plant height, number of stems per plant, number of tubers per hill, average tuber weight, specific gravity, total soluble solids, tuber diameter, dry matter content, ascorbic acid content, protein content and tuber yield. Statistical analysis of data was done using the standard programme for genetic variability in general performance, genotypic and phenotypic variance, coefficient of variation, heritability, genetic advance, correlation coefficient, path coefficient analysis, principal component analysis and non-hierarchical Euclidean cluster analysis of component traits on yield. Analysis of variances revealed significant differences among the genotypes for all the characters. Genotypes J/95-227 (7.81 kg/m²), MS/92-3128 (6.06 kg/m²), Kufri Puskar (5.87 kg/m²) and Kufri Sutlaj (5.82 kg/m²) were promising for yield. High phenotypic and genotypic coefficients of variation were recorded for tuber yield, followed by average tuber weight. High level of broad sense heritability and genetic advance as percentage of mean were recorded for tuber dry matter content and protein content, respectively. Correlation studies indicated that tuber yield (kg/m²) was positive and significantly correlated with average tuber weight, tuber diameter, number of tubers per plant, number of stems per plant and emergence percentage at 30 DAS whereas, quality traits like ascorbic acid content, tuber dry matter content and protein content showed negative correlation with tuber yield. Maximum positive direct effect on tuber yield per meter square was imposed by tuber weight, number of tuber per plant, tuber diameter, ascorbic acid content, dry matter content, protein content, number of stem per plant and specific gravity. However, negative direct effects on tuber yield were observed for plant height, emergence per cent at 30 DAS and total soluble solids. Twenty four genotypes were grouped into eight non overlapping clusters based on agronomic and quality traits using non-hierarchical Euclidean cluster analysis, maximum inter cluster distance was found between cluster I and IV. Genotypes were categorized in fifteen groups on the basis of contrasting characters of plant growth, shoot, leaf and tuber. Thus on the basis of the above findings genotypes J/95-227, MS/92-3128, Kufri Puskar and Kufri Sutlaj were found to be superior for tuber yield.ThesisItem Open Access Stability analysis for growth, yield and quality characters in tomato (Solanum lycopersicum L.)(G.B. Pant University of Agriculture and Technology, Pantnagar - 263145 (Uttarakhand), 2008-08) Thapliyal, Alok; Singh, J.P.Thirty three genotypes of tomato were evaluated in Randomized Block Design (RBD) with three replications to study the stability behaviour of tomato genotypes at Vegetable Research Centre, Pantnagar under three environmental conditions (summer and winter of 2006 and winter of 2007) for thirteen characters namely, plant height, number of primary branches per plant, days to 50% flowering, number of flower clusters per plant, days to 50% fruit set, days taken to first harvest, days taken to last harvest, average fruit weight (g), locules per fruit, number of fruits per plant, weight of fruits per plant, fruit yield (q/ha) and TSS (%). The analysis of variance revealed the presence of genotype-environment interaction for ten characters namely, plant height, days to 50% flowering, number of flower clusters per plant, days to 50% fruit set, days taken to first harvest, days taken to last harvest, average fruit weight (g), fruit weight per plant, number of fruits per plant and yield (q/ha). The linear component of G × E interaction were highly significant for days to 50% flowering, number of flower clusters per plant, average fruit weight, fruit weight per plant, number of fruits per plant and yield (q/ha), The non-linear component of G × E interaction were highly significant for plant height, days to 50% flowering, number of flower clusters per plant, days to 50% fruit set, days taken to first harvest, days taken to last harvest, average fruit weight (g), weight of fruits per plant, number of fruits per plant and fruit yield (q/ha). The deviation from regression was significant for most of the genotypes for plant height, days to first harvest, days to last harvest, fruit weight per plant, number of fruits per plant and yield (q/ha). Two genotypes namely, Ajeet-11 and VR-20 were adjudged superior and also stable for the character mean fruit weight. For number of fruits per plant, BCTH-62, BSS-437, KS-227, KS-229 and Pant T-7 were found to be suitable for high yielding environments. For yield (q/ha), Ajeet-11, PTH-68, BSS-571, HATH-9, Pant T-8 and Pant T-7 appeared promising under favorable environment. The genotypes Aruna, ATL-02-39, Pant T-7 and Pant T-10 were found promising for TSS (%) over a wide range of environments. The genotype Pant T-8 and Pant T-7 was found most stable with regards to yield. Despite of yield Pant T-8 also showed stability for fruit weight per plant, however, Pant T-7 showed stability for another yield attributing character i.e., number of fruits per plant. Similarly, the genotypes CLN 2413R and CLN 2026M also exhibited stability for two important yield contributing traits i.e., mean fruit weight and fruit weight per plant.
