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Subject: Horticulture ×

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Now showing 1 - 9 of 541
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    ThesisItemOpen Access
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    ThesisItemOpen Access
    Influence of Different Protected Structures and Mulchingo on Growth and Yield of Parthenocarpic Cucumber (Cucumis sativus L.)
    (University of Agricultural Science, Dharwad, 2017-07) Dingal, Dillip Kumar; Patil, Satish S.
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    ThesisItemOpen Access
    Influence of Media and Planting Geometry for Cultivation of Turmeric (Curcuma longa L.) Cultivars Under Polyhouse Condition
    (University of Agricultural Science, Dharwad, 2017-09) Sanjana B.M.; Biradar, M.S.
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    ThesisItemOpen Access
    Studies on Planting Methods and Clove Size on Growth and Yield of Garlic (Allium sativum L.)
    (University of Agricultural Science, Dharwad, 2017-07) Malashri; Shashidhar, T.R.
    An investigation was carried out to determine the effect of different planting methods and clove size on growth and yield of garlic during kharif 2016 and rabi 2016-17 at Saidapur Farm, Main Agricultural Research Station, University of Agricultural Sciences, Dharwad. Significant differences were observed among planting methods and the size of planting materials. The dome shape method (P4) of planting was consistently superior for growth parameters during both kharif and rabi season with highest plant height (51.10 cm and 57.22 cm, respectively), number of leaves (7.42 and 8.26, respectively), leaf area (34.85 dm2 and 57.70 dm2, respectively) and was on par with BBF method. Whereas, broad base furrow (BBF) method recorded the highest dry matter accumulation (60.13 g and 53.57 g), bulb weight (14.56 g and17.89 g), bulb diameter (14.92 mm and 38.05 mm), number of cloves (10.62 and 26.51), clove size (1.05 cm2 and 1.57 cm2) and total bulb yield (6.35 t/ha and 9.88 t/ha) respectively, during kharif and rabi seasons, and was followed by dome shape method. Further, planting large clove was noticed to be superior for the plant height (51.10 cm and 56.80 cm), number of leaves (7.42 and 8.31), leaf area (34.85 dm2 and 53.77 dm2), dry matter accumulation (60.13 g and 50.57 g), bulb weight (14.56 g and 17.56 g), bulb diameter (14.92 mm and 36.51 mm), number of cloves (10.62 and 24.83), clove size (1.05 cm2 and 1.67 cm2) and total bulb yield (6.35 t/ha and 9.72 t/ha) during both kharif and rabi season, respectively. The interaction effects between BBF method with large clove were found significant for growth and yield parameters. BBF method of planting with large clove (>1 g) was found to be superior over all the treatments as it resulted in better growth and higher yield with highest B:C ratio.
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    ThesisItemOpen Access
    Evaluation of Parthenocarpic Cucumbers Under Polyhouse
    (University of Agricultural Science, Dharwad, 2017-08) Karajagi, Sujata S.; Mantur, S.M.
    An experiment was conducted to evaluate parthenocarpic cucumbers under polyhouse at the Hi-tech Horticulture Unit, University of Agricultural Sciences, Dharwad, Karnataka during winter season of 2016-17. Ten parthenocarpic cucumber hybrids viz, Poyraz, Falcanostar, Sahin, Shinefit, Kingstar, Meltum, KPCH-1, Bahar, Cengel and Multistar were evaluated in completely randomized design replicated thrice. Result revealed that, among ten hybrids Kingstar recorded higher vine length (110 cm, 252 cm and 276 cm) at 30, 60 and 90 DAT, respectively. Kingstar recorded higher internodal length, fruit length and fruit weight (8.17 cm, 17.90 cm and 161.67 g, respectively). Less number of days taken to first flower emergence, days taken to first harvest and last harvest and more fruit diameter was recorded in KPCH-1 (20.67 days, 31.40 days, 78 days and 3.70 cm respectively). Multistar recorded significantly higher number of fruits per vine (37.33), yield per vine (5.21 kg), yield per hectare (231.18 ton) which was followed by hybrid Bahar yield per vine (4.32 kg), yield per hectare (191.96 t/ha). Maximum shelflife (6.80 days) and less moisture content (95.15%) was recorded by Multistar. The significantly more TSS (3.33 0B) content was recorded in KPCH-1, whereas, higher titrable acidity (0.51%) was in Poyraz which was followed by hybrid Multistar (0.35%). The maximum ascorbic acid and firmness (4.47 mg/g and 7.17 kg/cm2) was recorded in Sahin. The gross return (` 1,73,400), net return (` 1,18,421) per 500 m2 was significantly higher in the Multistar which was followed by Bahar gross return (1,44,000), net return (` 90,982). With respect to benefit cost ratio, Multistar (3.15) was found to be superior over the other hybrids. The results of present investigation indicated that the hybrid Multistar was suitable hybrid and highly economic under polyhouse.
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    ThesisItemOpen Access
    Genetic Diversity Studies for Morphological Traits in Clusterbean (Cyamopsis tetragonoloba L.)
    (University of Agricultural Science, Dharwad, 2016-08) Patil, Manjunath; Angadi, S.G.
    Clusterbean genotypes collected from different regions of India were evaluated in agumented design, with three checks replicated in each block to study the genetic variability, genetic divergence, per se performance, correlation and path analysis at Floriculture unit, Department of Horticulture, University of Agricultural Sciences, Dharwad, during kharif 2015. Analysis of variance revealed highly significant (at P=0.01) difference among genotypes for all seventeen characters studied. Broad genetic base was evident as the value of genotypic and phenotypic coefficient of variance was high for plant height, Number of branches, pod length, pods per plant, no of seeds per pod, yield per plant and seed yield per hectare. High heritability coupled with genetic advance over mean was observed for plant height at 90 DAS, Number of branches, leaf area, pod length at 60 DAS, Number of pods per plant, Number of seeds per pod, seed yield per plant, vegetable pod yield per plant and total seed yield per hectare which indicated predominance of additive gene actions for these traits. Correlation studies revealed significant and positive association of total seed yield per hectare with plant height, leaf area and Number of pods per plant. Path analysis for total seed yield per hectare revealed that secondary branches and days to 50 per cent flowering are being chief contributing characters at phenotypic level. The genetic divergence studies using K-means statistics grouped thirty five genotypes of clusterbean into five groups. Maximum inter-cluster distance was between clusters I and III. Among the seventeen characters included in K-means analysis, total seed yield per hectare contributed maximum towards genetic divergence followed by seed yield per plant and pod yield per plant. A few of the most promising genotypes evolved from present study for vegetable pod yield and seed yield were GR-9, GR-4, GR-29 and GR-26.
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    ThesisItemOpen Access
    Investigations on Planting Methods and Nutrition on Growth, Yield and Quality of Vetiver (Vetiveria zizanioides (L.) Nash)
    (University of Agricultural Science, Dharwad, 2017-06) Raviprasad Sajjan M.; Venugopal, C.K.
    A field investigation was conducted to evaluate the effect of planting methods and nutrition on growth, yield and quality of vetiver (Vetiveria zizanioides (L.) Nash Syn. Chrysopogan zizanioides) during July 2015- July 2016 at the Medicinal and Aromatic Plants Unit, Saidapur Farm, University of Agricultural Sciences, Dharwad, Karnataka. The experiment was laid out in split-plot design with three main plots (planting methods viz., P1– Ridge and furrow method, P2– Bed method and P3– Bag method) and six sub-plots (fertilizer levels viz., F1- 25:25:25 NPK, F2- 50:25:25 NPK, F3- 75:25:25 NPK, F4- 25:50:25 NPK, F5- 50:50:25 NPK and F6- 75:50:25 NPK kg/ha) comprising of eighteen treatment combinations replicated twice. Planting methods and nutrition levels had significantly influenced all the growth and yield parameters. Among the planting methods, bag method (P3) recorded significantly higher yield parameters viz., root length (50.12 cm), number of roots per plant (316.97), fresh root weight (219.15 g/plant), dry root weight (95.06 g/plant), root yield per ha (4,085.78 kg/ha) and essential oil yield (85.34 kg/ha) compared to other planting methods. Among fertilizer levels, 75:50:25 kg NPK per ha (F6) recorded significantly higher root length (45.98 cm), number of roots per plant (260.97), fresh root weight (177.28 g/plant), dry root weight (86.32 g/plant), root yield per ha (3,453.19 kg/ha) and essential oil yield (73.32 kg/ha) than all other lower levels of fertilizers at 12 months harvest. Among interactions, the combination of P3F6 (Bag method with fertilizer levels of 75:50:25 kg NPK/ha) recorded significantly higher root length (55.91 cm), number of roots per plant (350.4), fresh root weight (238.30 g/plant), dry root weight (103.29 g/plant), dry root yield (4.33 t/ha) and essential oil yield (94.25 kg/ha) compared to all other interactions. The same treatment combination also registered maximum gross returns (Rs.5,63,357/ha), net returns (Rs. 4,15,295/ha) and B:C ratio (1:3.80).
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    ThesisItemOpen Access
    Effect of Nitrogen, Harvesting Stage and Interval on Growth, Yield and Quality of Tulsi (Ocimum sanctum L.)
    (University of Agricultural Science, Dharwad, 2017-08) Raya, Harshitha H.; Venugopal, C.K.
    An investigation on the effect of nitrogen, harvesting stage and interval on growth, yield and quality of tulsi was carried out during kharif 2016-17 at the Medicinal and Aromatic Plants Unit, Saidapur Farm, Department of Horticulture, College of Agriculture, UAS, Dharwad. The experiment was laid out in factorial RCBD with three levels of nitrogen viz., 75 kg (N1), 100 kg (N2) and 125 kg (N3) per hectare, two harvestings at 75 (H1) and 90 (H2) days after transplanting with two harvesting intervals of 60 (I1) and 75 days (I2) after first harvest. Significant differences were observed among different doses of nitrogen, harvesting stage and interval on growth and yield parameters. Among the nitrogen levels, 125 kg per hectare recorded higher fresh herbage (18.14 and 11.89 t/ha) and dry herbage (6.13 and 4.02 t/ha) yield per hectare at first and second harvest, respectively and also recorded the maximum essential oil yield of 66.77 and 43.68 kg per hectare at first and second harvest, respectively. Harvesting stage had a significant influence on fresh and dry herbage yield of 19.21 and 6.49 tons per hectare, respectively in the first harvest, while 12.41 and 4.20 tons per hectare fresh and dry herbage yield, respectively was recorded in the second harvest. The essential oil yield of 69.52 and 45.97 kg per hectare was obtained at first and second harvest, respectively with the plants harvested at 90 days after transplanting. With regard to harvesting interval, an interval of 75 days after first harvest recorded maximum fresh and dry herbage yield per hectare (12.30 and 4.17 t/ha) and also recorded maximum essential oil yield of 44.85 kg per hectare. Oil content and the oil quality (% eugenol) ranged from 0.31 – 0.38 per cent and 72.09 – 76.44 per cent, respectively. The interaction effect of harvesting stage and interval on essential oil yield was significant. For the higher production of tulsi, application of nitrogen at the rate of 125 kg per hectare and harvesting at 90 days after transplanting with subsequent harvesting at an interval of 75 days helps in realizing the higher yield.
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    ThesisItemOpen Access
    Crop Improvement and Nutrient Management Studies in Marigold (Tagetes spp.)
    (University of Agricultural Science, Dharwad, 2017-06) Latha S.; Dharmatti, P.R.
    Marigold genotypes were evaluated at New orchard, Department of Horticulture UAS, Dharwad, during 2015-2016, to study the variability and genetic divergence and it was also aimed to generate variability through mutation studies using gamma rays and to develop production technology through Integrated Nutrient Management (INM). The results revealed that, the genotype Double Orange was appreciated for growth, flower quality and yield attributes, high heritability coupled with genetic advance over mean was observed for most of the traits. The genetic divergence studies, grouped twenty six genotypes of marigold into seven clusters. Among 26 genotypes, Double Orange and Pusa Basanti Gainda formed single genotype clusters, which made them so divergent from others. Based on this experiment the genotype Double Orange was used for mutation and INM studies. Mutation studies indicated that, germination and survivability percentage was decreased with increase in gamma rays dosage, where as lethality increased with increasing doses of gamma rays. Higher co-efficient of variation for majority of the vegetative and flower characters was at higher doses of 500 and 600 Gy gamma treated mutants population. Further, these higher doses have resulted in maximum number of chlorophyll mutants with higher frequency of 3.14 and 3.15 % (500 and 600 Gy, respectively). The treatment of higher doses also resulted in maximum number of morphological mutants. and they were evaluated further on large scale in M3 generation. In INM studies, application of plants with 50 % RDF + vermicompost equivalent to 50 % RD'N' + poultry manure equivalent to 50 % RD'N' (T4) was most superior for increasing growth, flower quality and yield (16.73 t/ha) of marigold. However, the benefit cost ratio was highest (3.75) in treatment supplied with 50 % RDF + FYM equivalent to 50 % RD'N' + Sheep manure equivalent to 50 % RD'N' (T9) which was found superior compared to other treatments.