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Open Access
Performance of Varieties and Effect of Sulphur Nutrition on Growth, Yield and Quality of Garden Pea (Pisum sativum L.) Under Rainfed Condition
(University of Agricultural Sciences, Dharwad, 2017-07) Bhavya M.N.; Hiremath, S.M.
Open 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.
Open 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.
Open 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.
Open 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.
Open 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.
Open 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.
Open Access
Micropropagation Studies in Pomegranate (Punica granatum L.) CV. Kesar
(University of Agricultural Science, Dharwad, 2016-08) Malawadi, Vitthal S.; Patil, S.S.
An investigation carried out on micropropagation studies in pomegranate (Punica granatum L.) cv. Kesar during 2014-16 at the Tissue Culture Laboratory of Department of Horticulture, College of Agriculture, University of Agricultural Sciences, Dharwad. An efficient protocol developed for rapid shoot multiplication of pomegranate cv. Kesar using nodal segment derived from young and healthy plantlets. Shoot development was induced from nodal segments on Murashige and Skoog (MS) medium supplemented with BAP 0.6 and 1.0 mg l-1, NAA 0.2 and 0.4 mg l-1, kinetin 1.0 and 2.0 mg l-1 and BAP 0.6 mg l-1 + kinetin 1.0 mg l-1 and BAP 1.0 mg l-1 + kinetin 2.0 mg l-1 were cytokinin significantly induced shoot proliferation. The maximum number of shoots (5.63 shoots per explant) developed on a medium containing BAP 1.0 mg l-1 + kinetin 2.0 mg l-1. Shoot culture was established by repeatedly sub-culturing the original nodal segment on a fresh batch of the same medium after each harvest of the newly formed shoots. In vitro raised shoots were cultured on a fresh medium for further multiplication. Shoots formed in vitro were rooted on MS medium supplemented with NAA 0.5, 1.0 mg l-1, IBA 0.5, 1.0 mg l-1 and IBA 0.5 mg l-1 + NAA 0.5 mg l-1 and IBA 1.0 mg l-1 + NAA 1.0 mg l-1. However, a medium containing IBA 0.5 mg l-1 + NAA 0.5 mg l-1 resulted significantly in lesser number of days taken for rooting (21.50), more number of root per shoots (4.64) and highest root length (4.60 cm). In vitro rooted shootlets were successfully acclimated in coco-peat with a maximum survival (87.67 %) and finally established in soil: compost (1:1) medium.
Open Access
Heterosis and Combining Ability Studies in Onion (Allium cepa L.)
(University of Agricultural Science, Dharwad, 2016-09) Basavana Gowda G.A.; Patil, R.V.
An investigation was conducted in the Department of Horticulture, College of Agriculture, Dharwad to study the heterosis and combining ability studies in onion (Allium cepa L.) with the objectives of identifying good general combiners and to assess the magnitude of heterosis for seventeen characters and to know the performance of hybrids. In the present investigation 54 entries have been evaluated (13 parents : 40 hybrids : 1 commercial check). Performance of hybrids like GKD-75 x Line-13 (11.83 t/ha), Kumata local x Line-13 (10.57 t/ha), ASKO-1201 x Cross-5 (9.60 t/ha) and Kumata local x cross-5 (8.88 t/ha) for the marketable yield was better than commercial check – Bhima Shakti (6.55 t/ha). These expressed considerable magnitude of heterosis over commercial check for yield. The top yielding entries [GKD-75 x Line-13 (4.013), ASKO-1201 x Cross-5 (2.431) and Kumata local x Line-13 (2.258)] involved positive (significant) x positive (significant) general combiner. Variance due to GCA and SCA was significant for the yield trait, indicating the involvement of both additive and non additive gene action. However, the estimates of SCA were higher than GCA variances indicating predominance of non-additive gene action in controlling the inheritance of this trait during kharif season. Marketable yield is the ultimate and most important trait. The performance of hybrids for marketable yield point to entries like ASKO-1299 x GKD-77 (26.80 t/ha), ASKO-1201 x Line-13 (26.25 t/ha), Bhima Shakti x Line-13 (26.25 t/ha), ASKO-1201 x GKD-77 (26.20 t/ha) and Bhima Shakti x cross-5 (24.65 t/ha) are statistically at par with commercial check [Bhima Shakti (24.6 t/ha)]. Expressed considerable magnitude of heterosis over commercial check for yield. For marketable yield, significant positive SCA effect for this trait was exhibited by cross ASKO-1299 x GKD-77 (5.602) which involved positive (non significant) x positive (significant) general combiner. This was followed by Bhima Shakti x Line-13 (5.207) which involved negative (significant) x positive (significant) general combiner. Variance due to SCA was significant indicating the involvement of non additive gene action during rabi season.