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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 Bio-Efficacy and Phyto-Toxicity of Pre and Post-Emergence Herbicides on Groundnut (Arachis hypogaea L.) and Soybean [Glycine max (L.) Merrill]; and Residual Effect on Succeeding Crops(University of Agricultural Sciences, Dharwad, 2018-07) Shilpa H.D.; Malligawad, Lokanath H.The field experiment was conducted at Main Agricultural Research Station. University of Agricultural Sciences, Dharwad on medium black clay soil during two consecutive years (2015-16 and 2016-17) in kharif-rabi sequence. Results indicated that pre-emergence application of alachlor 50 EC, pendimethalin 30 EC, butachlor 50 EC, pendimethalin 38.7 CS and oxyfluorfen 23.5 EC effectively controlled annual grassy and broad leaved weeds in groundnut/soybean and had no residual toxicities on all the succeeding crops. Post-emergence application of quizalofop ethyl 5 EC, propaquizafop 10 EC and fenoxaprop-p-ethyl 9 EC effectively controlled only annual grassy weeds and they did not show any residual toxicities on all the succeeding crops. On the contrary, post-emergence application of imazethapyr 10 SL (100 g/ha) although suppressing the growth and development of annual grassy and broad leaved weeds, but resulted in residual toxicities in succeeding crops. The severity of imazethapyr residual toxicity on succeeding crops was greater on grain amaranth > sorghum > wheat > maize > safflower > chickpea. Yield components, dry pod weight/plant, total number of pods/plant, 100 dry pod weight in groundnut and; total number of pods/plant, seed weight/plant and 100 seed weight in soybean and B:C ratio were more in treatments which received pre-emergence herbicides, post-emergence herbicides and weed free check treatment over weedy check treatment and treatment which received post-emergence application of imazethapyr 10 % SL @ (100 g/ha). Significantly lower dehydrogenase (μg TPF formed/g soil/d ) phosphatase (pnp formed/g soil/h) and urease activity (μg NH4-N formed/g soil/d), in preceding as well as succeeding crops was recorded with post-emergence application of imazethapyr 10 SL (100 g/ha).ThesisItem Open Access Response of Turmeric (Curcuma longa l.) Varieties to Methods of Irrigation and Graded Levels of Fertilizer(University of Agricultural Science, Dharwad, 2017-05) Satyareddi, Sunil A.; Angadi, S.S.A field experiment was conducted during 2012-13 and 2013-14 to study the response of turmeric varieties to methods of irrigation and graded levels of fertilizer at Agricultural Research Station, Kalloli, using split-split plot design replicated thrice. Treatment comprised of irrigation methods in main plot (Drip, Ridges and furrow and Sprinkler each at 50 per cent depletion of available soil moisture-DASM), genotypes in sub plot (cv. Cuddapah and cv. Pratibha and graded levels of fertilizer in sub-sub plot (180:90:90, 225:112.5:135 and 270:135:180 kg N:P2O5:K2O ha-1) with one control (Furrow irrigation at weekly interval with cv. Cuddapah and application of 180:90:90 kg N:P2O5:K2O ha-1). Drip irrigation at 50 per cent DASM recorded significantly higher cured finger rhizomes (3.67 t ha-1) and curcumin yield (188.2 kg ha-1) and water use efficiency (WUE) of 258.5 kg ha-cm-1 with water saving of 31.6 per cent over control. Cudappah variety was superior over cv. Pratibha in cured finger rhizomes yield (3.59 t ha-1). Pratibha variety resulted in higher curcumin content (6.30 %) and curcumin yield (201.1 kg ha-1). Application of 270:135:180 kg N:P2O5:K2O ha-1 resulted in higher cured finger rhizomes (3.51 t ha-1) and curcumin yield (178.5 kg ha-1) which was on par with 225:112.5:135 kg N:P2O5:K2O ha-1. Drip irrigation at 50 per cent DASM with cv. Cudappah and 270:135:180 kg N:P2O5:K2O ha-1 recorded significantly higher cured finger rhizomes yield (4.07 t ha-1) and WUE (282.4 kg ha-cm-1). Drip irrigation at 50 per cent DASM with cv. Pratibha and 270:135:180 kg N:P2O5:K2O ha-1 recorded higher curcumin yield (241.5 kg ha-1), B-C ratio (2.71) and net return ( 2.83 lakh ha-1) which was on par with drip irrigation at 50 per cent DASM with 225:112.5:135 kg N:P2O5:K2O ha-1 cv. Pratibha and cv. Cudappah. Results indicated that irrespective of the varieties, drip irrigation with application of 225:112.5:135 kg N:P2O5:K2O ha-1 resulted in higher yield and economics.ThesisItem Open Access Management of Lodging in Dicoccum Wheat Using Plant Growth Regulators(University of Agricultural Science, Dharwad, 2017-05) Guled, Sujatha M.; Aravindkumar, B.N.Two field experiments were conducted during rabi season of 2009 and 2010 in deep vertisol at Agricultural Research Station, Madurakhandi of Jamakhandi taluka, Bagalkot district, UAS, Dharwad. In the first experiment it was aimed to induce lodging tolerance using growth regulators to enhance yield in dicoccum wheat varieties (DDK-1029 and Mudhol local) in a factorial design with three replications. In the second experiment, it was planned to identify a critical crop growth stage susceptible to artificial lodging leading to yield loss and yield structure modification in dicoccum wheat variety Mudhol local in a split plot design with main plot having degrees of artificial lodging (450 and 900) at four feekes stages (FS 10.3, 10.52, 11.3 and 11.2) and a control. Treatment combinations were replicated thrice. In the first experiment, the growth regulator ethephon @ 30 ppm significantly increased the grain yield (2,700 kg ha-1) compared to control (1,910 kg ha-1) by significantly reducing the plant height (70.3 cm), stem length (60.60 cm), but, recorded higher number of productive tillers (390 m2), test weight (37.8 g) and harvest index (42.3 %). The interaction of growth regulator and genotypes showed that, use of ethephon at 30 ppm recorded significantly higher grain yield (2,780 kg ha-1), straw yield (3.96 t ha-1), panicle weight (92.0 g plant-1) and harvest index (47.5%) in DDK-1029 than Mudhol local. In the second experiment, between degrees of artificial lodging, 450 recorded significantly higher grain yield (1,987 kg ha-1) compared to 900 (1,796 kg ha-1). Among stages, artificial lodging at mealy ripe stage gave significantly lower grain yield of 1,681 kg ha-1 compared to before heading stage (2,201 kg ha-1) and conventional practice (2,082 kg ha-1). The interactions between degrees and stages of artificial lodging showed that the grain yield with 450 compared to 900 was significantly higher at before heading (2385 kg ha-1), but, it was on par with conventional treatment (2,082 kg ha-1).ThesisItem Open Access Influence of Iron and Zinc Fortified with Organics in Rabi Sorghum(University of Agricultural Science, Dharwad, 2017-08) Anilkumar A.H.; Kubsad, V.S.A field experiment to study the effect of iron and zinc fortified with organics in rabi sorghum under rainfed condition on clay loam soil was conducted at the Main Agricultural Research Station, University of Agricultural Sciences, Dharwad (Karnataka) during rabi 2016. The experiment consisting of eleven treatments with varied levels of FeSO4 and ZnSO4 was laid out in randomized complete block design with three replications. Soil application of RDF + Enriched FYM [(50 kg FYM ha-1 + 3.75 kg ZnSO4 ha-1) + (50 kg FYM ha-1 + 3.75 kg FeSO4 ha-1)] recorded significantly higher total dry matter production (193.61 g plant 1), grain weight (62.33 g plant-1), test weight (37.77 g), grain yield (4,287 kg ha-1), fodder yield (7.51 t ha-1), net returns ( 85,702 ha 1) and benefit cost ratio (3.50) over control, recommended dose of fertilizer and recommended package of practice. Soil application of RDF + Enriched vermicompost [(50 kg vermicompost ha-1 + 15 kg ZnSO4 ha-1) + (50 kg vermicompost ha-1 + 15 kg FeSO4 ha-1)] recorded significantly higher iron content in both grain (39.52 mg kg 1) and fodder (42.34 mg kg 1) which was 13.4 and 15.8 per cent increase over control, 12.6 and 13.8 per cent increase over recommended dose of fertilizer, 9.4 and 9.4 per cent increase over recommended package of practice. Similarly, zinc content in grain and fodder was significantly higher with the same treatment (28.44 and 29.44 mg kg-1, respectively) which was 13.5 and 16.0 per cent increase over control, 12.2 and 14.5 per cent increase over recommended dose of fertilizer, 7.4 and 5.6 per cent increase over recommended package of practice respectively. Soil application of RDF + Enriched FYM with ZnSO4 and FeSO4 each @ 3.75 kg ha-1 gives higher yields, with higher iron and zinc content.ThesisItem Open Access Response of Intra Hirsutum Bt Cotton to Drip Fertigation and Their Effect on Endotoxin Expression(University of Agricultural Science, Dharwad, 2016-06) Yogikoppa, Shruti M.; Aladakatti, Y.R.A field experiment was conducted in medium deep black soils to assess the optimum drip irrigation regimes and fertigation to intra hirsutum Bt cotton and their effect on endotoxin expression. It was laid out in factorial randomised complete block design with three replications during 2015-16 at Agricultural Research Station, Dharwad. Paired sowing system with drip irrigation at 1.0 Etc recorded significantly higher seed cotton yield per ha (3,606 kg ha-1) over 0.6 Etc and furrow irrigation, but it was on par with 0.8 Etc. Fertigation with 100 per cent recommended dose (RD) N and K (150:75 kg ha-1) in six equal splits was recorded significantly higher seed cotton yield, and it was on par with fertigation 75 per cent RD N and K. The interaction effect of drip irrigating at 1.0 Etc with fertigation of 100 per cent RD N and K recorded significantly higher seed cotton yield (4,024 kg ha-1). However, it was on par with drip irrigation at 0.8 Etc with fertigation of 75 per cent RD N and K (3,943 kg ha-1). The Cry 1Ac and Cry 2Ab protein content in leaves was non-significant at all the growth stages due to irrigation levels except at 45 DAS, but different levels of nutrients had significant effect on endotoxin expression. Water use efficiency (WUE) was significantly higher with drip irrigation at 0.8 Etc level (6.76 kg ha-1-mm). Maximum WUE was recorded at 100 per cent fertigation of RD N and K and it was on par with 75 per cent fertigation of RD N and K. Significantly higher net returns (Rs 1,34,262 ha-1) and B:C (3.25) were realised with irrigating at 1.0 Etc along with fertigation of 100 per cent RD N and K in six equal splits, however it was on par with irrigation at 0.8 Etc with fertigation of 75 per cent RD N and K.ThesisItem Open Access Response of Transplanted Onion (Allium cepa. L.) to Sulphur and Zinc Nutrition(University of Agricultural Science, Dharwad, 2016-06) Ravikumar, H.P.; Wali, S.Y.A field experiment was conducted to study the response of transplanted onion to sulphur and zinc nutrition during summer season of 2015 at farmer’s field in Vijayapura district (Zone-3). The treatments comprised combinations of four sulphur levels and three zinc levels along with a RPP, RDF and farmer’s practice (control). Totally fourteen treatment combinations were tested using randomized complete block design with three replications. The results on growth parameters, yield attributing parameters (bulb weight, bulb diameter and bulb index), bulb yield, quality parameters (TSS, bulb grading and bulb dry matter), nutrient uptake and status of available nutrient content in soil revealed significant variations among sulphur and zinc levels in onion. Among the treatment combinations, the treatment which received, RPP + 40 kg sulphur ha-1 + 10 kg zinc ha-1 has recorded significantly higher plant height, leaf area plant-1, dry matter accumulation in leaf, bulb and total dry matter accumulation at different growth stages (at 30, 60, 90 DAT and at harvest), bulb weight plant-1 (110.07 g), bulb diameter (41.90 mm), bulb index (1.91) and bulb yield (406.23 q ha-1) when compared with control. The quality parameters viz., TSS (13.89 %), A, B, C grade bulbs and lowest unmarketable bulbs, higher bulb dry matter were superior over control treatment. The uptake of N, P2O5, K2O, S and Zn as well available nutrient content of S and lower availability of N and P (at harvest ) in soil were recorded significantly higher values over control. The significantly higher net returns (` 4,43,019 ha-1) and B:C (3.58) were noticed with the treatment which received RPP + 40 kg sulphur ha-1 + 10 kg zinc ha-1 as compared to control.ThesisItem Open Access Intercropping of Forage Sweet Sorghum with Forage Legumes Under Different Nitrogen Levels(University of Agricultural Science, Dharwad, 2016-06) Lankeppanavar, Shilpa; Kubsad, V.S.A field experiment was conducted on intercropping of forage sweet sorghum with forage legumes (cowpea and horsegram) under different nitrogen levels at AICRP on Sorghum, MARS, Dharwad during kharif 2015. The experiment was laid out in randomized complete block design with fifteen treatment combinations consisting of sole and intercropping systems and two nitrogen levels and three replications. Significantly higher sorghum green and dry forage yield (47.25 and 12.80 t ha-1 respectively) was recorded in sole forage sweet sorghum with 100 % RDN. Among the intercropping systems, sweet sorghum + horsegram (2:1) with 100 % RDN recorded significantly higher sorghum green and dry forage yield (42.36 and 12.80 t ha-1 respectively). Among the legumes, significantly higher green and dry forage yield (25.28 and 4.93 t ha-1 respectively) was recorded in sole forage cowpea with 100 % RDN. In intercropping systems, sweet sorghum + cowpea (2:2) with 100 % RDN recoded significantly higher green and dry legume forage yield (15.51 and 3.03 t ha-1 respectively). These yield advantages are due to better growth and yield attributes. Sweet sorghum + horsegram (2:1) with 100 % RDN recorded significantly higher total green and dry forage yield (49.08 and 12.81 t ha-1 respectively) and LER (1.36). The forage quality parameters viz., crude protein (923.0 kg ha-1), crude fibre (4,216.3 kg ha-1), total ash (1,220.6 kg ha-1), ether extract (327.0 kg ha-1), nitrogen free extract (6,126.4 kg ha-1), total carbohydrates (10,342.7 kg ha-1) and organic matter (11,592.7 kg ha-1) are also significantly higher with same treatment. It also realized highest gross returns (₹ 45,519 ha-1), net returns (₹ 21,730 ha-1) and B: C ratio (1.91) as compared to others.ThesisItem Open Access Studies on Pigeonpea (Cajanus cajan L. Millsp.) Based Millets Intercropping Systems Under Rainfed Conditions(University of Agricultural Science, Dharwad, 2016-06) Vajjaramatti, Manjunath M.; Kalaghatagi, S.B.The field experiment was conducted during kharif season of 2015-16 at Agricultural Research Station Almel, Sindagi taluk of Vijayapur district in medium black soils to study the performance of pigeonpea (Cajanus cajan L. Millsp.) based millets intercropping systems under rainfed conditions. The results indicated that sole pigeonpea recorded significantly higher grain yield (1,918 kg ha-1) than the other intercropped pigeonpea while, the lowest grain yield (1,349 kg ha-1) was recorded in pigeonpea + finger millet intercropping system. Higher pigeonpea equivalent yield (PEY) was recorded in pigeonpea + foxtail millet (2,752 kg ha-1) and was on par with pigeonpea + proso millet (2,739 kg ha-1) in 1:2 row proportions while the lowest PEY was observed in pigeonpea + pearl millet (2,001 kg ha-1) in 1:2 row proportion. Significantly lower soil moisture was recorded in pigeonpea + finger millet (8.99 cm, 9.40 cm, 8.98 cm and 8.80 cm) at 30, 60, 90 and 120 DAS, respectively and was on par with pigeonpea + foxtail millet (9.18 cm, 9.44 cm, 9.24 cm and 8.81 cm) at 30, 60, 90 and 120 DAS, respectively compared to other intercrops and sole crop treatments. Significantly higher dry matter accumulation was noticed in sole pigeonpea (279.46 g plant-1) compared to other intercropped pigeonpea. Significantly lower number of eggs, larvae and per cent pod damage was observed in pigeonpea + finger millet (13.55 %) and was on par with pigeonpea + foxtail millet (13.80 %) in 1:2 row proportion. Sole pigeonpea recorded pod damage to an extent of 26.19 % even after necessary plant protection measures. Significantly higher gross returns (` 15,398 ha-1), net returns (` 1,11,457 ha-1) and benefit cost ratio (3.79) were recorded in pigeonpea + foxtail millet and was on par with pigeonpea + proso millet (3.74) intercropping systems in 1:2 row proportions.ThesisItem Open Access Performance of Soybean (Glycine max L. Merrill) Genotypes to Planting Geometry(University of Agricultural Science, Dharwad, 2016-06) Angadi, Lingaraj; Matiwade, P.S.ABSTRACT A field experiment was conducted during kharif 2015 to study “Performance of soybean (Glycine max L. Merrill) genotypes to planting geometry” at Agricultural Research Station (ARS), Nipani under rainfed condition. The experiment was laid out Randomized Complete Block Design with factorial concept and with four replications. There were 12 treatment combinations consisted of two varities ( JS-9305 and Dsb-21) and six row spacings (90 × 5 cm, 60 × 7.5 cm, 30 × 15 cm, 22.5 × 20 cm, 45 × 10 cm and 30 × 10 cm ). Soybean variety Dsb-21 produced significantly higher number of pods plant-1 (49.18), seed weight plant-1 (19.45 g), seed yield (22.20 q ha-1) and haulm yield (24.46 q ha-1) compared to JS-9305 variety. Among the different row spacings sowing of soybean at 45 x 10 cm recorded significantly higher number of pods plant-1 (53.70), seed weight plant-1 (21.31 g), seed yield (24.37 q ha-1) and haulm yield (26.49 q ha-1) compared to other treatments. In interaction effects significantly higher number of pods plant-1 (56.95), seed weight plant-1 (23.48 g ), seed yield (26.98 q ha-1) and haulm yield (29.10 q ha-1) were recorded in Dsb-21 when sown at 45 x 10 cm row spacing compared to other treatment combinations. Significantly higher gross returns ( 1,07,407 ha-1), net returns ( 78,252 ha-1) and B:C ratio (3.68) obtained in Dsb-21 when sown at 45 x10 cm row spacing compared to other treatment combinations. Sowing of Dsb-21 variety at 45 x 10 cm row spacing is optimum for getting higher soybean seed yield and net returns.
