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University of Agricultural Sciences, Dharwad
The University of Agricultural Sciences, Dharwad was established on October 1, 1986.
The University has 5 Colleges, 27 Research Stations, 6 Agriculture Extension Education Centers, 6 Krishi Vigyan Kendras and ATIC. The University has its jurisdiction over 7 districts namely Bagalkot, Belgaum, Bijapur, Dharwad, Gadag, Haveri, and Uttar Kannada in northern Karnataka. Greater diversity exists in soil types, climate, topography cropping and farming situations. The jurisdiction includes dry-farming to heavy rainfall and irrigated area. Important crops of the region include sorghum, cotton, rice, pulses, chilli, sugarcane, groundnut, sunflower, wheat, safflower etc. The region is also known for many horticultural crops.
Considerable progress has been registered in the field of education, research and extension from this University.
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ThesisItem 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.ThesisItem Open Access Studies on Planting Geometry and Nutrients in Hybrid Brinjal(University of Agricultural Science, Dharwad, 2015-09) Sollapur, Duradundeppa; Hiremath, S.M.A field experiment was conducted to study the effect of planting geometry and fertilizer on growth, yield and quality of hybrid brinjal at Saidapur Farm, University of Agricultural Sciences, Dharwad during kharif, 2013. The experiment was laid out in randomized block design with 15 treatment combination consisting of five levels spacing and three levels of fertilizer. The study on different spacing indicated that, the plants raised with 90 cm x 90 cm spacing recorded higher number of fruits per plant (81.28), average fruit weight (85.48 g), fruit diameter (6.01 cm), and marketable fruit yield (78.73t/ha), uptake of nutrient, improved quality parameters like TSS (4.97 0Brix) and ascorbic acid (12.95 mg/100 g), net returns and lower pest infestation to shoot (7.92 %) and fruit (8.23 %) as compared to other spacing. However, the plant height (86.49 cm) and leaf area index (1.348) were maximum with 75 cm x 60 cm spacing. Among the different fertilizer levels, application of 187.5:150:75 kg NPK/ha recorded significantly higher number of fruits per plant (69.34), average fruit weight (72.48 g), marketable fruit yield (73.76 t/ha), nutrient uptake, net returns and improved quality parameters like TSS (4.550Brix) and ascorbic acid (12.55 mg/100 g) as compared to other fertilizer levels. However, application of 125:100:50 kg NPK/ha (F1) fertilizer level recorded significantly lesser pest infestation to shoots (9.04 %) and fruits (9.55 %). Among the spacing and fertilizer interactions, plants raised with 90 cm x 90 cm spacing along with application of fertilizer 187.5:150:75 kg NPK/ha recorded significantly higher net returns (Rs.4,32,183) and B:C ratio (3.82) as compared to other treatment combination.ThesisItem Open Access Influence of Planting Geometry and Training Methods on Growth, Yield and Quality of Cherry Tomato Grown Under Shade House(University of Agricultural Science, Dharwad, 2015-08) Pathan, Ashif Khan; Mathad, J.C.An experiment was carried out to study the effect of planting geometry and training methods on growth, yield and quality of cherry tomato under shade house condition during summer of 2014 at Hi- Tech Horticulture Unit, Department of Horticulture, UAS, Dharwad. There were three spacings viz., 45 x 30 cm (4.4 plants/m²), 45 x 45 cm (2.94 plants/m²) and 45 x 60 cm (2.22 plants/m²) and four levels of training per plant viz., single stem, double stem, three stems and four stems. The experiment was laid out in two factor strip plot design with three replications. Among the vegetative parameters the closer spacing S1 (45 x 30 cm) recorded maximum (180.18 cm) plant height, (7.10 cm) intermodal length and single stem training system recorded maximum (183.11 cm) plant height, (7.11 cm) intermodal length. The result revealed that the yield parameters under wider spacing (45 x 60 cm) recorded maximum (6.60 g) fruit weight, (1.74 cc) fruit volume, (3.50 kg) yield per plant, (131.02 g) yield per cluster, (2.01 cm) fruit diameter and (3.02) fruit length compared to the plants in closer spacing. The yield per meter square (7.48 kg) was found maximum under closer spacing (45 x 30 cm). With regards to the plants trained under single stem recorded maximum fruit weight (6.77 g), fruit volume (1.94 cc), yield per cluster (145.20 g), fruit diameter (2.18 cm) and fruit length (3.15) compared to the plants trained in four stem. Yield per plant (3.78 kg) and yield per meter square (7.49 kg) was found maximum in plants trained under four stems.ThesisItem Open Access Evaluation of Gerbera (Gerbera Jamesonii Bolus) Varieties Under Protected Cultivation(University of Agricultural Science, Dharwad, 2015-07) Sridhar Gopal Kallol; M.S. BiradarABSTRACT Gerbera is one of the important commercial cut flower crops and is one among the top ten cut flower of the world flower trade, which ranks fifth in the International flower trade. There is always demand for novel types with high yielding genotypes. Hence, the present study was conducted to identify the suitable gerbera cultivars under naturally ventilated polyhouse with respect to yield and quality of cut flowers at Hi-tech Horticulture Unit, Saidapur Farm, Main Agricultural Research Station, University of Agricultural Sciences, Dharwad. Among the ten cultivars studied there were wide and highly significant variations observed for various growth, yield and quality parameters. Cultivar Cacharelle produced maximum cut flower yield (37.10/pl/yr) followed by Pre-Intenzz (35.80/pl/yr) and Winter Queen (33.80/pl/yr). The same cultivars had significant longer stalk length and bigger sized flowers compared to other cultivars. With respect to vegetative parameters like plant height, number of leaves per plant, plant spread, suckers production and leaf area were also maximum in the same cultivars. A positive correlation was noticed between flower yield and vegetative characters; like plant height, plant spread, side shoots, leaf area and number of leaves per plant. However, negative correlation was noticed between stalk length and stalk diameter. Among the growing seasons, flower yield and quality of flower in all the varieties were higher during winter season followed by rainy and they were least during summer season. The Cv. ‘Cacharelle’ realized maximum net return of ` 3,38,020 in 560m2 area with a B:C ratio of 2.00 followed by Pre-Intenzz (` 3,17,860 ; 1.88), Winter Queen (` 2,90,980 ; 1.72) and Stanza (` 2,72,16 ; 1.62) compared to other genotypes studied.ThesisItem Open Access WEED MANAGEMENT STUDIES IN TUBEROSE (Polianthes tuberosa L.) cv. Prajwal(University of Agricultural Sciences, Dharwad, 2015-06) RATHOD, ARAVIND; VENUGOPAL, C. K.The present field experiment was conducted during 2014-15 at Medicinal and Aromatic Plants Block, Saidapur farm, University of Agricultural Sciences, Dharwad during kharif season on weed management studies in tuberose (Polianthes tuberosa L.) cv. Prajwal. The experiment was laid out in Random Complete Block Design (RCBD) with three replications. Eight treatments were formed by using different weedicides as pre and post emergent sprays. The size of the gross plot was 4 x 3 m and net plot size of 3.6 x 2.6 m was obtained after removing one border line. Spacing maintained was 30 x 20 cm. Five plants were selected randomly for taking observations on growth and yield parameters. The flower yield (t/ha) varied significantly (2.91 to 4.18 t/ha) among different treatments. The maximum flower yield (t/ha) was recorded in treatment weed free check, followed by Pendimethalin 30 EC @ 1 kg a.i/ha (3.67 t/ha) and Alachlor 50 EC @ 1.5 kg a.i/ha (3.54 t/ha). At 120 DAP, the higher weed control efficiency (97.23%) was observed in weed free check treatment. Among the herbicides, Pendimathalin 30 EC @ 1 kg a.i/ha and Alachlor 50 EC @ 1.5 kg a.i/ha were the next best which exhibited 84.30 and 83.83 per cent weed control efficiency respectively. Net returns and marginal returns were highest in weed free check treatment throughout the crop period. Among the herbicide treatments, Pendimethalin 30 EC @ 1 kg a.i/ha and Alachlor 50 EC @ 1.5 kg a.i/ha recorded the highest net returns and marginal returns. The higher flower yield as a result of better control of weeds in these treatments resulted in higher net returns and marginal returns.ThesisItem Open Access HETEROSIS BREEDING IN GLADIOLUS (Gladiolus hybridus Hort.)(University of Agricultural Sciences Dharwad, 2015-04) Akkamahadevi D. Agasimani; Dr. V.S. PatilStudies on heterosis and combining ability in gladiolus (Gladiolus hybridus Hort.) were taken during 2010-2014 at ‘Floriculture Unit’ of new orchard of University of Agricultural Sciences, Dharwad. Analysis of variances revealed significant differences among the genotypes for all the characters. Genotypes exhibited highest GCV and PCV for earliness (days for first floret to open, days for first floret to show color), days for first to last floret opening, corm weight and corm diameter. The high heritability estimates with moderate genetic advance over mean found in most of the characters viz., rachis length, spike length, floret diameter, floret length, days for first to last floret opening, corm weight, corm diameter and number of florets per spike in all genotypes. Association analysis revealed that number of florets per spike was significantly and positively associated with corm weight, corm diameter, plant height, number of leaves, spike length and inter floret length. Among the 45 hybrids developed using diallel analysis, IP x TF exhibited higher per se for number of florets per spike, vase life and rachis length with significant positive mid parent heterosis, better parent heterosis and economic heterosis. The hybrids CM x WS and WP x WS were early to spike initiation, to show color and also early for first floret to open. Among ten parents, White Siphon was found to be the best combiner for earliness where as Tiger Flame was the best combiner for number of florets, floret length and rachis length. Variance due to SCA was higher than GCA for most of the characters studied indicating involvement of dominant gene action than additive gene action.ThesisItem Open Access EFFECT OF GROWTH REGULATORS AND BIO STIMULANTS IN ONION (Allium cepa L.) PRODUCTION(University of Agricultural Sciences Dharwad, 2015-07) SHASHI KUMAR H. M.; Dr. SHASHIDHAR. T. R.Field experiments were conducted to find out the effect of plant growth regulators and bio stimulants in the production of onion during Rabi 2014 and 2015 at the Main Agricultural Research Station, University of Agricultural Sciences, Dharwad. The experiment was laid out in Randomised Complete Block Design with twelve treatments replicated thrice. Maximum plant height (64.30 cm) was recorded from the plots sprayed with GA3 @ 60 ppm whereas the higher number of leaves (10.63) and higher leaf area (1204.49 cm2/plant) were noticed in the plot sprayed with lihocin @ 2500 ppm. Significantly higher neck thickness (18.64 mm) and higher dry matter content (16.9 gm/plant) were noticed in the treatment lihocin @ 2500 ppm. Significantly higher yield (54.0 t/ha) was noticed from the plots sprayed with lihocin @ 2500 ppm and the minimum yield (41.2 t/ha) was noticed in the control plot. The higher average weight of the bulb (119.60 g/bulb) and marketable yield of the bulbs (51.60t/ha) were recorded from the plots sprayed with lihocin @ 2500 ppm. Total Soluble Solids varied significantly at harvest and the higher TSS was noticed in the treatment NAA @ 300 ppm (13.7). The higher cost benefit ratio (7.13:1) was recorded in the treatment lihocin @ 2500 ppm. The pre harvest application of lihocin @ 2500 ppm recorded the lower physiological loss in weight (18.5%), higher drymatter content (15.10%) and higher percentage of marketable bulbs (79.5%) during the course of storage. Significantly lower percent loss in scale was noticed in the treatment NAA @ 300 ppm (26.75%). Among all the treatment lihocin @ 2500 ppm was the best for getting higher yield and good storability of onion bulbs.ThesisItem Open Access GENETIC STUDIES IN TOMATO (Solanum lycopersicum L.)(University of Agricultural Sciences Dharwad, 2015-06) SMITHA G. B.; Dr. P. R. DHARMATTIA study was conducted to assess the heterosis and combining ability for productivity and bacterial wilt resistance in tomato during 2014-15 in the Department of Horticulture, UAS, and Dharwad. The experimental material consisted of fifteen parents including ten female and five male parents. Fifty F1 hybrids were produced in a line tester mating design for heterosis and combining ability studies. Female parents were selected with diversity for bacterial wilt and male parents with diversity for horticultural traits. Data on fruit quality characters were recorded and per cent mid-parent heterosis and better-parent heterosis were determined. The analysis of variance revealed the predominance of non-additive gene action for all the traits. The hybrids showed significant variation in heterosis. Maximum and significant heterosis in favourable direction was observed for yield, fruit number, fruits per cluster and average fruit weight. Heterosis was appreciable in all hybrids, but was more in four hybrids viz, IMP-B x DMT-2, Arka Alok x DMT-5, Arka Abha x DMT-3 and BFL x DMT-3. In respect of both gca & sca effects, the parents and hybrids differed significantly. Among the parents, IMP-B and DMT-3 were the best general combiners for yield per plant and other characters under study, and these may be used as valuable donors in the hybridization programme for producing promising combinations in bacterial wilt prone areas. Among the crosses, IMP-B x DMT-2, Arka Alok x DMT-5, Arka Abha x DMT-3 and BFL x DMT-3 were the most valuable combiners for yield per plant and also free from the bacterial wilt incidence. IMP-B x DMT-2 and Arka Abha x DMT-3 were suitable for processing. The present study reveals that heterosis breeding is useful for development of tomato through exploitation of non-additive gene action.ThesisItem Open Access PERFORMANCE OF CARNATION (Dianthus caryophyllus L.) VARIETIES UNDER NATURALLY VENTILATED POLYHOUSE CONDITION(University of Agricultural Sciences Dharwad, 2015-06) HOSURE AJINKYA B.; Dr. S. G. ANGADIAn investigation on performance of ten cultivars of Carnation (Dianthus caryophyllus L.) with respect to growth, quality, yield and economics was carried out under naturally ventilated polyhouse condition at Hi-Tech Horticulture Unit, Main Agricultural Research Station, Saidapur Farm, University of Agricultural Sciences, Dharwad during August 2014 to March 2015. Significant variations were observed for all the parameters studied among the different carnation varieties. Liberty and Gwen were significantly superior when compared to all the genotypes with respect to flower yield and the superiority of these varieties are may be due to the superiority in their yield contributing traits as well as least calyx splitting and plant mortality. Varieties, Liberty and Gwen were early to initiate flower buds and also early to opening of flower buds. The flower stalk length was highest in varieties Harmony but the desirable stalk length was observed in the variety Liberty. Whereas, Harmony recorded maximum flowers diameter and the weight of flower was highest in Farida however highest vase life was recorded in Orange Viana. On the other hand the variety Jurano shows susceptibility to calyx splitting and plant mortality. Cost economics worked out in the study indicated that the B:C ratio ranges from 1.50 to 2.39 and maximum was observed in variety Liberty (2.39) compared to all other varieties. Based on present findings, it can be concluded that varieties viz., Liberty and Gwen have emerged as promising varieties with respect to earliness in flowering, flower yield, vase life and least calyx splitting and plant mortality. These varieties are suitable for commercial cultivation under naturally ventilated polyhouse in Northern transitional tract of Karnataka.
