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University of Agricultural Sciences, Bengaluru

University of Agricultural Sciences Bangalore, a premier institution of agricultural education and research in the country, began as a small agricultural research farm in 1899 on 30 acres of land donated by Her Excellency Maharani Kempa Nanjammanni Vani Vilasa Sannidhiyavaru, the Regent of Mysore and appointed Dr. Lehmann, German Scientist to initiate research on soil crop response with a Laboratory in the Directorate of Agriculture. Later under the initiative of the Dewan of Mysore Sir M. Vishweshwaraiah, the Mysore Agriculture Residential School was established in 1913 at Hebbal which offered Licentiate in Agriculture and later offered a diploma programme in agriculture during 1920. The School was upgraded to Agriculture Collegein 1946 which offered four year degree programs in Agriculture. The Government of Mysore headed by Sri. S. Nijalingappa, the then Chief Minister, established the University of Agricultural Sciences on the pattern of Land Grant College system of USA and the University of Agricultural Sciences Act No. 22 was passed in Legislative Assembly in 1963. Dr. Zakir Hussain, the Vice President of India inaugurated the University on 21st August 1964.

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  • ThesisItemOpen Access
    EFFECT OF ORGANIC MIXTURES ON STONE GERMINATION AND SEEDLING GROWTH OF MANGO (Mangifera indica L.) cv. TOTAPURI UNDER NETHOUSE AND POLYHOUSE CONDITIONS
    (UNIVERSITY OF AGRICULTURAL SCIENCES, GKVK, BENGALURU, 2019-08-10) VANDANA, S.
    A nursery study was conducted to find out the effect of organic mixtures on stone germination and seedling growth of mango (Mangifera indica L.) cv. Totapuri under nethouse and polyhouse in the Department of Horticulture, UAS, GKVK, Bengaluru. To improve the germination and seedling quality, a nursery study was conducted to notice better combination of organic mixtures. The seedlings were kept to study the growth under nethouse and polyhouse for 180 days. Under polyhouse, the treatment (T10) consists of Soil : Sand : FYM : Vermicompost : Cocopeat : PGPR [2:1:1:1:1:1] ratio recorded maximum germination percentage (80.00 %) and better growth parameters, viz. higher plant height (55.07 cm), more number of leaves (19.45), higher vigour index of fresh and dry weight (3822.00 and 2854.60 respectively) and higher root length (41.54 cm) at 180 DAS. Similarly, under nethouse the treatment (T10) noted maximum germination percentage (70.00 %) and better growth parameters, viz. higher plant height (44.81 cm), more number of leaves (14.00), higher vigour index of fresh and dry weight (3051.60 and 2286.43 respectively) and higher root length (34.74 cm) at 180 DAS. Thus, it can be concluded that, the combination of organic mixtures are positively influenced the germination, growth and vigour of mango cv. Totapuri seedlings under polyhouse compared to nethouse.
  • ThesisItemOpen Access
    INFLUENCE OF MICRONUTRIENTS AS FOLIAR SPRAY ON GROWTH, YIELD AND QUALITY OF POLE BEAN (VAR: SUVARNA) UNDER OPEN FIELD AND PROTECTED CONDITIONS
    (UNIVERSITY OF AGRICULTURAL SCIENCES, GKVK BENGALURU, 2019-11-11) MANJULA, M. PATIL; SIDDAGANGAIAH
    The field investigation on influence of micronutrients as foliar spray on growth, yield and quality of pole bean (var: Suvarna) under open field and protected conditions was undertaken at the Department of Horticulture, UAS, GKVK, Bengaluru. The highest vine length (334.0 cm), number of leaves plant⁻¹ (253.99), chlorophyll content (61.37), higher number of pods plant⁻¹ (158.61), pod length (19.72 cm), pod width (8.85 mm), higher protein content (24.54 %), higher pod yield plant⁻¹ and hectare-1 (1.46 kg and 59.00 t respectively) were recorded significantly with spray of Zn 0.5%+B 0.25%+ Fe 0.25% under protected condition. Similarly, under open field condition, higher vine length (271.00 cm), number of leaves plant⁻¹ (224.47), chlorophyll content (59.27), higher number of pods plant⁻¹ (144.60), higher pod length (18.66 cm), pod width (8.71 mm), higher protein content (23.71%) and higher pod yield plant⁻¹ and hectare-1 (1.02 kg and 40.89 t respectively) were noticed with spray of Zn 0.5%+B 0.25%+ Fe 0.25%. Similarly, the highest estimated pod yield per hectare (59.00 t ha⁻¹) and higher net returns (Rs.12,49,668 /-) and higher cost benefit ratio (1:3.4) was recorded with the same treatment under protected condition. In general, better vegetative growth, higher yields, good quality pods and higher net returns were obtained in pole bean grown under from protected conditions compared to open-field condition.
  • ThesisItemOpen Access
    CONSERVATION OF GEOGRAPHICAL INDICATION (GI) TAGGED JASMINES THROUGH TISSUE CULTURE
    (UNIVERSITY OF AGRICULTURAL SCIENCES, GKVK BENGALURU, 2019-10-31) RANGANATHA, G. J.; Nirmala, K. S.
    Karnataka registered three jasmines cultivars in geographical indication registry during the year 2006. They are Mysore mallige (Jasminum azoricum L. syn. J. trifoliatum Moench), Udupi mallige (J. sambac (L.) Aiton) and Hadagali mallige (J. auriculatum Vahl), flowers of each of these species are unique in their fragrance. The present study aimed to conserve these species through slow growth storage, by direct and indirect organogenesis. In indirect organogenesis, the response of leaf explants for callus initiation was 100% in all the three species, early callus initiation being observed in MS medium supplemented with 2,4-D at 0.2 mg L-1 after 10, 11.6 and 9 days in Udupi mallige, Hadagali mallige and Mysore mallige respectively. Callus intensity was highest in the medium supplemented with 2,4-D at 0.4 mg L-1 : Udupi mallige (Very good), Hadagali mallige (Good), and Mysore mallige (Good). Callus was friable and white (Udupi mallige), brownish (Hadagali mallige) and creamish green (Mysore mallige). However, no organogenesis was observed when cultured on benzyl adenine (BA), kinetin (KN), naphthalin acetic acid (NAA) and in their combinations. The auxins (NAA (0.25 mg L-1 to 0.5 mg L-1 ) , 2,4-D (0.2 mg L-1 to 0.4 mg L-1 ) and cytokinin (Kinetin (2.0 mg L-1 to 6.0 mg L-1 ) , BA (2.0 mg L-1 to 6.0 mg L-1 ) treated cultures showed browning of callus after 60 days of culturing. For direct regeneration, shoot tips of all the three species were cultured on MS medium containing BA, KN, NAA and their combinations which resulted in only callus production. In none of the three species multiple shoots were noticed. Slow growth storage method adopted to conserve the callus, with 1.0 mg L-1 to7.5 mg L-1 ancymidol and 0.1 mg L-1 to 2.0 mg L-1 abscisic acid on half MS media indicated that the ancymidol treated cultures do not show any change even after 75 days, but abscisic acid treated cultures turned brown from white (Udupi mallige), brownish (Hadagali mallige) and creamish green (Mysore mallige) after 60 days.
  • ThesisItemOpen Access
    STANDARDISATION OF SPACING FOR ZUCCHINI (Cucurbita pepo L.) UNDER POLYHOUSE AND OPEN FIELD CONDITIONS
    (UNIVERSITY OF AGRICULTURAL SCIENCES, GKVK BENGALURU, 2019-10-23) VIDYA V. HADIMANI; MUKUNDA, G. K.
    The field investigation on standardisation of spacing for Zucchini (Cucurbita pepo L.) under polyhouse and open field conditions was undertaken at the Department of Horticulture, UAS, GKVK, Bengaluru. The highest plant height (91.4 cm), higher number of leaves plant⁻¹ (39.46), highest number of nodes plant⁻¹ (36.93), highest leaf area plant⁻¹ (568.53 cm2 ), highest number of male and female flowers plant⁻¹ (34 and 18 respectively), higher number of fruits plant⁻¹ (3.29), higher fruit weight plant⁻¹ (262.09 g), highest fruit yield plant⁻¹ (3.28 kg) and higher fruit TSS (4.51 ºBrix) was recorded significantly at 1.2 × 1.2 m spacing level under protected condition. Similarly, under open field condition, higher plant height (67.89 cm), highest number of leaves plant⁻¹ (25.33), highest number of nodes plant⁻¹ (22.33), highest leaf area plant⁻¹ (502.37 cm2), highest number of male and female flowers plant⁻¹ (20.66 and 17.00 respectively), higher number of fruits plant⁻¹ (2.54), higher fruit weight plant⁻¹ (253.09 g), highest fruit yield plant⁻¹ (2.13 kg) and higher fruit TSS (4.66 ºBrix) was noticed at 1.2 × 1.2 m spacing level. Similarly, the highest estimated fruit yield per hectare (56.84 t ha⁻¹) and higher net returns (Rs. 9,26,956 /-) was recorded at 1.2 × 1.2 m spacing level under protected condition. However higher cost benefit ratio (1:3.70) were recorded at 1.2 × 1.2 m spacing level in under open field condition. In general, better vegetative growth, higher yield, good quality of fruits and higher net returns were obtained from protected grown zucchini compared to open-field condition.
  • ThesisItemOpen Access
    COMPARATIVE STUDY OF ARECOLINE CONTENT IN Areca catechu Linn. AT VARIOUS STAGES OF MATURITY IN DIFFERENT AGROCLIMATIC ZONES OF KARNATAKA
    (UNIVERSITY OF AGRICULTURAL SCIENCES GKVK, BENGALURU, 2019-09-14) VAIDEHI VIDHANCHANDRA PAI; VASUNDHARA, M.
    Arecanut is associated with tradition and used in different cultural, social, and religious ceremonies. Arecoline is primary active ingredient in the areca nut and has wide range of pharmacological activities. Development of a simple and rapid method to determine the content of arecoline in areca nut and its extracts before usage in any form of consumption is needed. An experiment was conducted at Department of Horticulture, UAS, GKVK to study the arecoline content in Areca catechu Linn. at various stages of maturity in different agroclimatic zones of Karnataka. Arecanut samples were collected from four agroclimatic zones (Zone - 4, 7, 9 and 10) at three different stages of maturity (5-6,7-8 and 9-10 months). The interaction effect of agro-climatic zones and stage of maturity as well as the individual effects of the two on the total alkaloid content, arecoline content in the nuts and percentage of arecoline was found to be significant. Among the agro-climatic zones, significantly high total alkaloid content (6.77 mg g-1) was recorded from Zone-7 and significantly high arecoline content (12.59 mg g-1) was recorded from Zone-10. Significantly high percentage arecoline in total alkaloids (38.141%) was noted in Zone-9. Mature nuts (9-10 month old) had higher total alkaloid content (9.11 mg g-1), arecoline content (4.84 mg g-1) and higher arecoline percentage of total alkaloids (53.896 %). Significantly high amount of total alkaloids (12.28 mg g-1) , arecoline content in the nuts (6.71 mg g-1) were recorded from mature nuts from Zone-10. However, the percentage arecoline in total alkaloids (55.44 %) was significantly in high mature nuts from Zone-9. Thus it was concluded that both agroclimatic zone and stage of maturity as well as their interaction impacted the arecoline content in arecanut.
  • ThesisItemOpen Access
    INFLUENCE OF VERMICOMPOST IN COMBINATION WITH MICROBIAL CONSORTIUM ON GROWTH, YIELD AND QUALITY OF CHRYSANTHEMUM (Dendranthema grandiflora L.) cv. MARIGOLD
    (UNIVERSITY OF AGRICULTURAL SCIENCES GKVK, BENGALURU, 2019-08-23) SHARUKHKHAN; SHARUKHKHAN; VENKATESHA, M.; VENKATESHA, M.
    The present study was conducted to know the influence of vermicompost in combination with Microbial Consortium on growth, yield and quality of Chrysanthemum (Dendranthema grandiflora L.) cv. Marigold was carried out at Precision Farming Development Centre, Department of Horticulture, Gandhi Krishi Vigyana Kendra, University of Agricultural Sciences, Bengaluru during kharif season of 2018-19 and this experiment was laid out with a design of Randomised Complete Block Design (RCBD) with 10 treatment with 3 replication combination. The treatments were imposed with combination of organic, inorganic and biofertilizers with a spacing of 45cm x 45cm between the rows and plants. The results of the experiment indicated that, treatment combination with Vermicompost + 50 per cent RDF + AMC (T9) recorded significantly highest plant height, more number of branches, plant spread and yield attributes such as flower diameter, number of flowers per plant, average flower weight, flower yield per plant and flower yield per hectare. The soil sample analysed from the combination treatment (T9) showed higher available nutrients (N, P2O5 and K2O) and their uptake by plants. The same treatment (T9) registered significantly superior quality parameters such as flower diameter and shelf life of the flower. The economic analysis clearly indicated that net returns obtained per hectare and B:C ratio (1.98) was highest in the plots imposed with Vermicompost + 50 per cent recommended dose of fertilizers + AMC (T9) and can be used for commercial chrysanthemum production with more profitable.
  • ThesisItemOpen Access
    EFFECT OF MEPIQUAT CHLORIDE ON GROWTH, YIELD AND QUALITY OF TOMATO (Solanum lycopersicum L.)
    (UNIVERSITY OF AGRICULTURAL SCIENCES GKVK, BENGALURU, 2019-08-29) RUDRAVVA, GOUDAR; RAMAKRISHNA, B. M.
    An investigation was carried out at the Department of Horticulture, GKVK, UAS, Bengaluru during 2018-19 to know the effect of mepiquat chloride (MC) on growth, yield and quality of tomato. The investigation comprised of eight treatments with three replications viz,50 g a.i.ha-1 of MC at initiation of flowering (T1), 62.5 g a.i.ha-1 of MC at initiation of flowering (T2), 125 g a.i.ha-1 of MC at initiation of flowering (T3), 50 g a.i.ha-1 of MC at initiation of fruiting (T4), 62.5 g a.i.ha-1 of MC at initiation of fruiting (T5), 125 g a.i.ha-1 of MC at initiation of fruiting (T6), 50 g a.i.ha-1 of MC at initiation of flowering and at initiation of fruiting (T7) and control. The results have shown that treatment T3 (125 g a.i.ha-1 of mepiquat chloride at initiation of flowering) has recorded minimum plant height (82.20 cm) and intermodal length (5.11 cm). Fruit weight (71.75 g), fruit length (5.64 cm), fruit diameter (4.57 cm), number of fruits per plant (49.83), yield per plant (3.58 kg), yield per hectare (85.81 tons), TSS (4.69 0Brix), ascorbic acid (17.05 mg/100g) and fruit firmness (4.17 kg/cm2 ) were maximum in treatment 125 g a.i.ha-1 of mepiquat chloride at initiation of flowering followed by T6 fruit weight (70.21 g), fruit length (5.64 cm), fruit diameter (4.56 cm), number of fruits per plant (47.96), yield per plant (3.11 kg), yield per hectare (80.83 tons), TSS (4.64 0Brix), ascorbic acid (16.92 mg/100g) and fruit firmness (4.08 kg/cm2 ). The results of this study shows that the treatment 125 g a.i/ha mepiquat chloride at initiation of flowering is ideal for getting higher yield with better quality fruits.
  • ThesisItemOpen Access
    EFFECT OF MEPIQUAT CHLORIDE ON GROWTH, YIELD AND QUALITY OF OKRA (Abelmoschus esculentus L. Moench) HYBRID ARKA ANAMIKA
    (UNIVERSITY OF AGRICULTURAL SCIENCES GKVK, BENGALURU, 2019-08-28) POORNIMA, MORIGERI; SATHYANARAYANA, N.
    A field investigation on “Effect of mepiquat chloride on growth, yield and quality of Okra (Abelmoschus esculentus L. Moench) hybrid Arka Anamika” carried out under open field condition in the Department of Horticulture, GKVK, UAS, Bangalore. The experiment consisted eight treatments with different concentrations of mepiquat chloride (50, 62.5 and 125 g a.i. ha-1 ) and stages (at initiation of flowering and fruiting) of application with three replications was laid out in Randomized Complete Block Design. The results revealed that treatment (T3) containing 125 g a.i. ha-1 of mepiquat chloride sprayed at initiation of flowering showed significant decrease in plant height (60.20 cm), internodal length (4.63 cm) and leaf area (374.13 cm) at 60 DAS whereas maximum was recorded under control. Growth parameters viz. number of leaves (18.06), number of branches (3.93), stem girth (5.25 cm) and chlorophyll content (58.93) were recorded highest in the treatment (T3) consists of 125 g a.i. ha-1 of mepiquat chloride at initiation of flowering. Similarly T3 noted with better yield and quality parameters viz. pod length (15.13 cm), pod diameter (2.16 cm), number of pods per plant (14.2), pod yield/plant (572.1 g), total pod yield (14.26 t/ha), ascorbic acid (16.31 mg/100g) and TSS (2.03 oBrix) at 60 DAS. The higher cost: benefit ratio (1: 1.96) also obtained under T3. Thus it can be concluded that 125 g. a.i. ha-1 mepiquat chloride sprayed at initiation of flowering results in better growth, yield and quality attributes of Okra.
  • ThesisItemOpen Access
    EFFECT OF CHEMICALS AND NANOSILVER PARTICLES ON POST-HARVEST DISEASES AND STORAGE LIFE OF POMEGRANATE (Punica granatum L.) FRUITS
    (UNIVERSITY OF AGRICULTURAL SCIENCES, GKVK BENGALURU, 2019-05-09) ROHITH, C. GOWDA; Ramakrishna, B. M.
    Pomegranate is an important export-oriented crop rich in antioxidants. Investigations were carried-out during 2017-18 to study the “Effect of chemicals and nanosilver particles on post-harvest diseases and storage life of pomegranate (Punica granatum L.) fruits” at Department of Horticulture, College of Agriculture, GKVK, UAS, Bengaluru. Selection of the right packing material is important in order to achieve a desirable storage life. Among the different levels of ventilation used in packing material, Unventilated packages were identified as best packaging material for maintaining nutritional quality, control postharvest disease loss and storage life of pomegranate fruits. Pomegranate fruits packaged in unventilated nanosilver packages recorded lower TSS (15.21 0B), pH (3.19), PLW (3.70 %), total peel colour (57.84 ΔE), fruit firmness (20.55 N), respectively and higher titratable acidity (0.69 %), anthocyanin content (58.77 mg 100 g-1), reducing sugars (7.29 %), total sugars (9.20 %), visual acceptance (5.00), respectively. Spoilage was not observed and had a higher storage life of 74 days, respectively. Nanosilver composite packages without ventilation were found to be superior over other treatments namely, 1 per cent ventilation, 2 per cent ventilation and control. It is concluded that the fruits stored in unventilated nanosilver composite packages were superior in various parameters due to the properties of nanosilver packages like it reduces the moisture and gaseous exchange acting as a barrier thereby reducing the respiration. It even reduces sudden variations in temperatures, which makes it uncongenial for pathogen activity. They serve as good packages due to its lighter weight, flexibility and stability.