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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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ThesisItem Open Access EFFECT OF FEEDING VARIED TYPES OF MULBERRY LEAVES TO LATE-AGE SILKWORM, Bombyx mori L. ON PERFORMANCE OF PURE MYSORE AND NB4D2 BREEDS OVER SEASONS(UNIVERSITY OF AGRICULTURAL SCIENCES GKVK BANGALORE, 2001-06-02) DHARMA NAIK, B.C.; KR1SHNA PRASAD, N.K.ThesisItem Open Access SUSTAINABILITY FACTORS IN MULTIVOLTINE MULBERRY SILKWORM SEED COCOON PRODUCTION IN KARNATAKA(UNIVERSITY OF AGRICULTURAL SCIENCES GKVK BANGALORE, 2001-08-08) SRINIVASA GOWDA, R.G.; CHINNASWAMY, K.P.ThesisItem Open Access INFLUENCE OF S36 MULBERRY VARIETY ON THE REARING PERFORMANCE OF THE SILKWORM Bombyx mori. L.(UNIVERSITY OF AGRICULTURAL SCIENCES GKVK BANGALORE, 2001-08-31) VENUGOPAL, S.N; VIJAYENDRA, M.ThesisItem Open Access STUDIES ON EXTRAFOLIATION OF AQUEOUS EXTRACTS OF FEW BOTANICALS ON Bombyx mori L.(UNIVERSITY OF AGRICULTURAL SCIENCES GKVK BANGALORE, 2001-08-09) MAHESHA, H. M.; Patil, Rajashekhargouda R.Foliar supplementation of mulberry leaves with aqueous extracts of P. hysterophorus (20%) and T. procumbens (30%) improved all the economic traits of S. mori without extending larval duration. 20 per cnet P. hysterophorus and 30 per cent T. procumbens recorded maximum larval weight before second, third, fourth moult and a day before spinning and differed significantly with water control. The ERR increased from 73.41 per cent (water control) to 37.08 and 35.58 per cent due to foliar supplementation of P. hysterophorus (20%) and T. procumbens (30%) respectively. Irrespective of the concentrations tested P. hysterophorus and T. procumbens recorded lowest larval mortality of 16.09 and 17.13 per cent compared to all other treatments. Supplementation of P. hysterophorus (20%) and T. procumbens (30%) were effective in bringing down the flacherie from 10.58 per cent (water control) to 5.09 and 7.33 per cent and grasserie from 13 00 per cent (water control) to 5.50 and 3 91 per cent, respectively P hysterophorus (20%) and T. procumbens (30%) recorded maximum cocoon weight of 19.33 and 19.56 g, pupal weight of 15.88 and 15.78 g, shell weight of 3.76 and 3.67 g, shell ratio of 18.73 and 18.70 per cent, silk filament length of 1006 and 991 m, silk filament weight of 0.257 and 0.225 g and lowest denier of 2.30 and 2.32 respectively compared to water control (17 23 g, 13.87 g, 2.96 g, 16.91%, 857 m, 0.237 g and 2.49). Higher cocoon yield by weight and number/dfl was recorded due to extrafollation of 20 per cent P. hysterophorus (337 g and 241) and 30 per cent T. procumbens (343 g and 242) compared to water control (303 g and 223). Foliar supplementation of 20 per cent Parthenium and 30 per cent Tridax effected maximum food consumption (1.90 and 1.87 kg/5.25 kg) food utilisation (1.00 and 0.930 kg), fecal matter voided (0.391 and 0.888 kg) and CPU values (53.16 and 52.38%) and were significantly superior to water control. Though extrafoliation of T. procumbens (30%) and P. hysterophorus (20%) increased fecundity, none of the plant products could Improve the hatchability. The response of NB18 breed was better than the PM X NB18 to extrafoliation of plant products with respect to silkworm growth and development, food consumption and all the economic parameters except ERR, fecundity, cocoon yield by number and disease incidenceThesisItem Open Access PERFORMANCE OF FIFTH INSTAR SILKWORM Bombyx mori L. ON TENDER SHOOTS(UNIVERSITY OF AGRICULTURAL SCIENCES GKVK BANGALORE, 2001-08-09) MAHESHKUMAR VAGE, . N; ASHOKA, . JStudies on the effect of feeding tender shoots on fifth instar silkworm, Bombyx mori L. were conducted at the Department of Sericulture, University of Agricultural Sciences, Dharwad during 1997-98. The experiment was conducted by using Pure Mysore (PM), NB4D2 -and PM x NB4D2 over three different seasons. Among different treatment combinations, feeding tender shoots to fifth instar silkworms upto third day and subsequently matured shoots significantly increased larval and cocoon parameters (viz., full grown larval weight, effective rate of rearing, cocoon yield, productivity, cocoon weight, shell weight, shell ratio, pupal weight, silk filament length and weight) of silkworm breeds when compared to matured shoot feeding (control). During all the three rearings, the larval and cocoon parameters were significantly higher in NB4D2; for the parameters viz., cocoon yield by weight, productivity and shell ratio, NB4D2 was on par with PM x NB4D2. The survival parameters viz,, effective rate of rearing, cocoon yield by number, pupation rate and moth emergence were significantly higher in Pure Mysore, which was on par with PM x NB4D2 when tender shoots were fed to fifth instar silkworms upto third day and subsequently matured shoots. The larval and pupal duration remained unaltered by tender shoot feeding. But, fecundity was highest in PM x NB4D2 during winter when fifth instar silkworms were fed with tender shoots upto three days and subsequently matured shoots. Grasserie and Flacherie were lowest in PM when the fifth instar silkworms were fed with tender shoots during winter. However grasserie incidence was highest in NB4D2 when silkworms were fed with tender shoots for entire fifth instar during summer. Irrespective of season and breed when the fifth instar silkworm larvae were fed with tender shoots upto three days and subsequently matured shoots gave better performance for most of the economic traits in bivoltine breed NB4D^nd the survival parameters were better in multivoltine breed, Pure Mysorejxhe combination of economic as well as survival parameters in multi x biovltine hybrid, PM x NB4D2.ThesisItem Open Access STORABILITY AND FIELD SPRAY OF BOTANICALS ON MULBERRY AND ITS EFFECT ON Bombyx mori L.(UNIVERSITY OF AGRICULTURAL SCIENCES GKVK BANGALORE, 2001-08-13) HIPPARAGI, GANGAPPA D.; RAYAR, S. G.Experiments were conducted to study the storability and field spray of botanicals on mulberry and its effect on silkworm economic traits. The storability of aqueous extract of Parthenium hysterophorus (20%) and Tridax procumbens (30%) was studied in normal, refrigerator and earthen pot storage for 1, 3, 5, 10 and 15 days. The extract of Parthenium and Tridax stored in refrigerator has recorded highest larval weight (36.59 g), cocoon weight (16.58 g), shell weight (2.72 g), pupal weight (14.36 g), cocoon shell ratio (18.35%), filament length (821 m), effective rate of rearing (78.80%) and cocoon yield (10.32 kg/25 dfl). It was followed by earthen pot and normal storage. Further, storing the Parthenium and Tridax extract upto fifteen days in refrigerator and earthen pot and one day in normal storage has recorded maximum larval weight (37.33, 36.73 and 34.78 g), cocoon weight (16.97, 16.09 and 15.51 g), shell weight (2.79, 2.70 and 2.70 g), c/s ratio (18.68, 18.30 and 17.41%), pupal weight (13.91, 13.11 and 12.86 g), filament length (871, 781 and 699 m), denier (2.30, 2.04 and 2.50), ERR (83.00, 77.80 and 70.70%), fecundity (549, 515 and 472), hatching (97.80, 97.10 and 96.90%) and cocoon yield/25dfl (10.81, 9.98 and 8.34 kg) respectively. Supplementation of aqueous extract of Parthenium (20%) and Tridax (30%) were found to be statistically on par and recorded maximum larval weight (34.90 and 34.69 g), cocoon weight (15.65 and 15.99 g), shell weight (2.65 and 2.62 g), pupal weight (12.83 and 13.05 g), cocoon shell ratio (18.00 and 17.60%), filament length (745 and 729 m), denier (2.45 and 2.47), ERR (72.90 and 75.30%), fecundity (514 and 484), hatching (95.80 and 96.10%) and cocoon yield (9.18 and 9.99 kg/25dfl) respectively as compared to water and absolute control. Irrespective of rearing season field spraying of aqueous extract of Lantana camara (30%) recorded significantly highest matured larval weight (31.13 g), cocoon weight (15.58 g), denier (2.72) and cocoon yield (11.68 kg/25dfl). While Parthenium hysterophous (30%) was superior in shell weight (2.90 g), cocoon shell ratio (19.52%), filament length (775.67 m), fecundity (534) and hatching (91.44%). Among the season, the botanicals were found to be significantly superior during rainy as compared to winter and summer. During rainy season the larval weight (32.88 g), ERR (77.88%), cocoon weight (16.73 g), pupal weight (13.52 g), filament length (755 m), fecundity (537) and cocoon yield (13.31 kg/25dfl) were superior over other rainy seasons.ThesisItem Open Access EVALUATION OF VICTORV-1 FOR LEAF YIELD ANT) REARING PERFORMANCE IN TRANSITIONAL TRACT OF NORTH KARNATAKA(UNIVERSITY OF AGRICULTURAL SCIENCES GKVK BANGALORE, 2001-08-13) SATYANARAYANA, Ch.; PATIL, R. R.ThesisItem Open Access SPECIES ABUNDANCE OF THRIPS IN RELATION TO PHENOLOGY OF MULBERRY VARIETIES(UNIVERSITY OF AGRICULTURAL SCIENCES GKVK BANGALORE, 2001-12-18) MANJUNATHA, D.V.; JAYARAMAIAH, M.ThesisItem Open Access REELING PERFORMANCE OF DEFECTIVE MULBERRY SILK COCOONS ON MULTI-END REELING MACHINE(UNIVERSITY OF AGRICULTURAL SCIENCES GKVK BANGALORE, 2001-10-24) RAMESH, K.V.; NAGESHCHANDRA, B.K.