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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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Subject: Sericulture × End date: 2017 × Start date: 2017 × Type: Thesis ×
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Now showing 1 - 9 of 9
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    ThesisItemOpen Access
    BIORESPONSES OF MULBERRY (Morus spp.) AND SILKWORM (Bombyx mori L.) TO SILKWORM PUPAL PROTEIN AND COMPOST
    (UNIVERSITY OF AGRICULTURAL SCIENCES GKVK, BENGALURU, 2017-09-28) MAHESH, D. S.; Narayanaswamy, T. K
    An experiment was conducted during 2015-17 by application of 50% N through SPB + 50% N + recommended dose of P & K/ha/year through chemical fertilizers (T6) recorded highest major nutrients content (available N, P2O5 and K2O of 286.50, 50.18 and 186.32 kg/ha) in soil, highest mulberry growth (plant height of 163.72cm), leaf yield (1005.37g/plant) and quality parameters like leaf moisture (74.26 %), total chlorophyll (2.45mg/g), crude protein (20.16%), total soluble protein (12.02%) and total soluble sugar (13.12%). Further, significantly higher silkworm rearing parameters such as, mature larval weight (38.63g/10), less fifth instar larval duration (156.10 hours), total sugar (2.47 %), lipid (2.98 %), highest ERR (98.80%), lower disease incidence (1.20%) and cocoon parameters like maximum single cocoon weight (1.88g), shell weight (0.30g), shell ratio (15.95%), cocoon filament length (915.70m), least denier (2.29), fibroin (20.85μg/ml) and sericin (11.86μg/ml) content were recorded when silkworm fed with mulberry leaves of T6 treatment. Significantly higher mulberry growth (plant height of 158.81 cm), leaf yield (1047.92 g/plant) and quality parameters like higher leaf moisture (74.33), total chlorophyll (2.58 mg/g), total sugars (13.22 percent), total soluble protein (12.18 percent) and crude protein (21.14 percent) were recorded in V1 variety sprayed with SPP @ 2 percent + RDF + 20 MT FYM/ha/year (T6) at 60th day after pruning. Further, significantly higher silkworm rearing parameters like mature larval weight (38.78g/10), fifth instar larval weight (38.78g/10), less fifth instar larval duration (156.58 hours) , total sugar (2.52 %), lipid (3.04 %), lesser disease incidence (0.89 %), higher effective rate of rearing (99.10 %) and cocoon parameters like maximum single cocoon weight (1.92 g), shell weight (0.31 g), shell ratio (16.14 %), cocoon filament length (922.14 m), lowest denier (2.27), fibroin (21.09 μg/ml)and sericin (12.02 μg/ml) respectively were recorded when silkworm fed with mulberry leaves of T6 treatment.
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    ThesisItemOpen Access
    EFFECT OF SOIL AND FOLIAR APPLICATION OF ZINC AND BORON ON QUALITY OF MULBERRY LEAF AND DEVELOPMENT OF LATE LARVAL FLACHERIE OF SILKWORM, Bombyx mori L.
    (UNIVERSITY OF AGRICULTURAL SCIENCES GKVK, BENGALURU, 2017-08-22) NITHINKUMAR, D. M.; Doreswamy, C.
    Sericulture is an agro based Cottage industry which is practiced in China, India and other Asian countries extensively. In recent days, sericulture has gained prime importance in Indian agriculture as it provides gainful occupation to around 7.25 million people in rural and semi-urban areas (Dandin et al., 2003). Although it is considered as a subsidiary occupation, technological innovations have made possible to achieve an intensive scale capable of generating adequate and also continuous income to farmers. India retained its position as the second largest producer of silk sharing 14.60 per cent in the global raw silk production. Annual silk production of the country on an average is about 28,523 MT during the year 2015-16 with foreign exchange earnings of Rs. 2,495.99 Crores from silk goods exports. Production of mulberry raw silk during 2015-16, was 20,478 MT indicated a marginal decrease of 4.8 per cent compared to the previous year’s production of 21,390 MT. (www.indiastat.com).
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    ThesisItemOpen Access
    EVALUATION OF MULBERRY BASED SILAGE FOR ITS NUTRITIVE QUALITY
    (UNIVERSITY OF AGRICULTURAL SCIENCES GKVK, BENGALURU, 2017-08-02) DIVYASHREE, H.J.; Chandrashekhar, S.
    The experiment was conducted during Rabi Season 2016 to evaluate the mulberry based silage for nutritive quality. The study was conducted at College of Sericulture Chintamani, UAS, Bengaluru. The experiment consisted of nine treatment combination with three replications laid out in a Complete Randomised Design. The Nutritive analysis of Mulberry based silages was carried out for physical, chemical parameters, cell wall fractions and palatability test for ruminants. Where physical parameter like pH was ranged from 4.3 to 5.3, colour ranged from dark green to light green with sweetish odour, in all different treatments combinations. Palatability test was done for ruminants, where acceptance was found to be more in 75 per cent mulberry leaves and shoots with 25 per cent maize. Chemical parameters like crude protein, crude fibre, ether extract and total ash, ADF (Acid Detergent Fibre) and NDF (Neutral detergent fibre). Crude protein was found to be 16.8 per cent in sole mulberry, crude fibre(1.17%) and ether extract (6.53%) was effective in 50 per cent mulberry leaves with shoots with 50 per cent napier grass combination. Total ash content (12.45 %) was found to be highest in 50 per cent mulberry leaves and shoots with 50 per cent maize. Cell was fraction like NDF (67%) in sole napier grass silage ADF (55%) in sole mulberry silage.
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    ThesisItemOpen Access
    RESPONSE OF SILKWORM, LEAF ROLLER AND MEALYBUG TO TRANSGENIC MULBERRY
    (University Agricultural sciences,GKVk, Bangalore, 2017-07-29) MANJUNATHA, S. R.; Manjunath, Gowda
    The experiments on the research entitled “Response of Silkworm, Leaf Roller and Mealybug to Transgenic Mulberry” were conducted at the Department of Sericulture, and the Department of Crop Physiology, UAS, GKVK, Bengaluru. Five transgenic mulberry lines overexpressing barley HVA1 (VR and ST series), tobacco osmotin (MT and RD series) and bch1 (BT series) genes, which were tolerant to different stresses were used in the experiment. Rearing fifth instar PM×CSR2 silkworms on transgenic mulberry and V1 variety resulted in significantly higher fifth instar larval weight, ERR, cocoon weight, shell weight, fecundity and silk productivity and lowest pupal duration. Highest cocoon yield, pupal weight and denier were observed in ST series among transgenic lines. When silkworms were reared from I instar, significantly highest cocoon yield, cocoon weight, pupal weight, shell weight, shell ratio, silk productivity, filament length, filament weight and filament denier were observed in V1 variety. Significantly highest food consumption in V instar was recorded in VR series. However, higher food digestion was observed in MT series and highest consumption index was observed in the worms fed with leaves of BT series. The duration of larval period of D. pulverulentalis on transgenic mulberry lines ranged from 10.70 days (BT series) to 11.16 days (ST series) among transgenic lines and in V1 variety it was 11.55 days.The total life span of female and male mealy bug ranged from 43.50 days (ST series) to 52.04 days (VR series), and from 29.27 days (ST series) to 36.05 days (BT series), respectively. The study revealed that transgenic mulberry lines for stress tolerance were supportive for growth and development of silkworm, leaf roller and mealybug. Therefore, the leaves of the above transgenic mulberry lines may be used for commercial silkworm rearing.
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    ThesisItemOpen Access
    INFLUENCE OF NANO ZINC APPLICATION ON MULBERRY AND COCOON PRODUCTIVITY
    (University Agricultural sciences,GKVk, Bangalore, 2017-07-28) NITHYA, B.N.; Ramakrishna, Naika
    The pot culture and field experiment was conducted to study the influence of nano zinc application on mulberry and cocoon productivity at College of Sericulture, Chintamani during 2016. The experiment consisted of seven treatment combinations with three replications (RCBD). Significantly higher available nitrogen (434.86 kg ha-1), phosphorus (106.31 kg ha-1), potassium (359.90 kg ha-1) and Zn content (2.15 kg ha-1) were recorded in treatment of nano zinc oxide at 20 ppm as foliar spray and soil application at 2 g/ha in pot culture experiment. The observations recorded in field experiment revealed significantly higher nitrogen (4.74 %), zinc (41.36 mg kg-1), shoot height (96.63 cm), number of branches (8.47/plant), number of leaves (18.60/shoot), number of leaves (157.15/plant), leaf area (96.90 cm2) , leaf yield (0.46 kg/plant), higher total chlorophyll (2.44 mg g-1), crude protein (39.00 %) and crude fiber (14.19 %) of mulberry leaves in nano zinc oxide of 50 ppm used as foliar spray. Further, significantly shorter moulting and 5th instar duration (91.25 hrs and 7.22 days) and higher larval weight (25.78 g/10 larvae), ERR (94.00 %), cocoon weight (14.63 g/10 cocoons), shell weight (2.49 g/10cocoons) and single filament length (823.83 m) were recorded in nano zinc oxide at 20 ppm as foliar spray. The net returns per hectare of mulberry was more (Rs.1,53,083.492) in treatment with nano zinc oxide of 20 ppm as foliar spray. The nano zinc fertilizer was found to be cost effective with higher B: C ratio (2.93) as compared to ZnSO4 fertilizer (2.43).
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    ThesisItemOpen Access
    EFFECT OF AMINO ACID FORMULATION AS FOLIAR SPRAY ON MULBERRY GROWTH AND SILKWORM REARING PARAMETERS
    (University Agricultural sciences,GKVk, Bangalore, 2017-07-28) DEEPA, K. B.; FATIMA, SADATULLA
    A study on “Effect of Amino acid formulation as foliar spray on mulberry growth and silkworm rearing parameters” was conducted by utilizing the established V-1 mulberry garden at department of Sericulture, UAS, G.K.V.K., Bengaluru during 2016-17. Spraying of 3.5 % amino+ spray on 25th and 35th day after pruning recorded maximum plant height (166.85 cm), longest shoot height (122.67cm), more number of leaves per plant (298.49), highest number of shoots per plant (15.76), less internodal distance (5.88 cm) maximum leaf yield per plant (511.08 g/plant). Biochemical parameters of V-1 mulberry such as leaf moisture, carbohydrates and protein content (74.7, 25.76 and 23.48 per cent respectively) chlorophyll (33.23), nitrogen (3.76 %), phosphorous (0.46 %), potassium (1.53 %), calcium (1.69 %), magnesium (0.57 %), sulphur (0.49 %) and zinc (22.75 ppm) contents recorded significantly high in 3.5 % amino+ spray on 25th and 35th day after pruning. Silkworms (PM x CSR2) fed with V-1 mulberry during late age registered significantly shorter fifth instar larval durations (169.00 hr), total larval duration (608.00 hr), cocoon number (48.50 /50 worms), cocoon weight (92.83 g/50 cocoons), maximum ERR (96.67 %), maximum single cocoon weight (1.92 g), single shell weight (0.31 g), single pupal weight (1.61 g), shell ratio (19.40 %) finer denier (2.39) and filament length (835.67 m) respectively were recorded when silkworms were fed on mulberry raised with 3.5 % amino+ spray on 25th and 35th day after pruning.
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    ThesisItemOpen Access
    EFFICACY OF NOVEL INSECTICIDES ON PINK MEALYBUG Maconellicoccus hirsutus GREEN ON MULBERRY AND THEIR SAFETY TO SILKWORM, Bombyx mori L.
    (UNIVERSITY OF AGRICULTURAL SCIENCES GKVK, BENGALURU, 2017-07-24) YESHIKA, M.P.; Banuprakash, K.G.
    During the present investigation, attempt was made to find out effective chemicals for the management of pink mealybug on mulberry. Initially, chemicals with novel modes of action were assessed in the laboratory. Based on the laboratory results, promising insecticides were assessed in the field at different doses against mealybug. Data was also generated on safety of the treated mulberry leaves for silkworm rearing, phytotoxicity on mulberry and safety to natural enemies. The field experiment results revealed that among the insecticides, dinotefuron 20 SG @ 0.25 g/l exhibited higher mealybug mortality at both 7 and 15 days after spraying (DAS), followed by pymetrozine 50 WG @ 0.6 g/l and azadirachtin 1 % @ 2 ml/l. Further, these chemicals were found non phytotoxic to mulberry and safer to coccinellid beetles, a prominent natural enemy of mealybug. Maximum mulberry leaf yield was recorded in dinotefuron 20 SG @ 0.25 g/l. Dinotefuron 20 SG, pymetrozine 50 WG and azadirachtin 1 % at different doses were found safer to silkworms even at 10 DAS and exhibited better rearing and reeling parameters. On the contrary, flonicamid 50 WG 0.3 g/l exhibited phytotoxicity and affected silkworm rearing.
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    ThesisItemOpen Access
    EVALUATION OF THE STATUS OF CHARAKA SILK REELING IN CHIKKABALLAPURA DISTRICT
    (UNIVERSITY OF AGRICULTURAL SCIENCES GKVK, BENGALURU, 2017-05-10) MANJUNATHA, C.; chandrappa, D.
    The study was conducted in the Chikkaballapura district to know the status of charaka silk reelers during the year 2014-15. Multi-stage random sampling technique was used for selection of 50 charaka, 40 cottage basin and 30 multi-end reelers. Theprimary data was collected using pre-tested schedule from reelers in order to evaluate the comparative economics to identify the factors behind the reduction in charaka reelers. The collected data was analyzed using cost-return analysis, correlation, CAGR and Friedman’s two- way ANOVA. The results revealed poor socio-economic characteristics among charaka silk reelers compared to improved reelers. Raw silk reeled per basin per year is least in charaka (730 kg’s) and higher in multi-end (1095 kg’s) and net returns realized per Kg of silk reeled is least in charaka (Rs. 9.71/-) and higher in multi-end (Rs. 278.62/-). The B:C ratio worked out to be low in charaka (1.03) and high in multi-end basin (1.24), so as renditta with 8.2 and 6.9, respectively. The charaka reeling units are declined at the rate of 1.5 per cent annually from 2003-04 to 2013-14. The factors behindreduction are low demand for silk because of poor quality and low profitsbecause of high cost of production. The decline in charaka units in the area posing serious threat to reeling industry,so there is a need to refrain the migration by imparting the knowledge of modern techniques of reeling and by providing the financial assistance to adopt the latest technologies.
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    ThesisItemOpen Access
    VALIDATION OF PERFORMANCE OF PURE MYSORE ON DIFFERERNT MULBERRY VARIETIES
    (UNIVERSITY OF AGRICULTURAL SCIENCES GKVK, BENGALURU, 2017-01-12) RAGHAVENDRA, J.; Banuprakash, K. G
    Selected mulberry varieties (M5, S13, S30, S34, S36, MR2, RFS175, S54, DD1 and V1) revealed that among selected varieties, V1 recorded highest carbohydrates (25.80 %), crude protein (18.35 %), leaf moisture content (76.31 %), chlorophyll ‘a’, chlorophyll ‘b’ and total chlorophyll (1.620 mg/g, 0.809 mg/g and 2.429 mg/g, respectively) content with least crude fibre content (9.42 %). Further, V1 variety leaves had maximum macronutrients viz., nitrogen (2.94 %), phosphorous (0.42 %), potassium (1.62 %), calcium (2.21 %), magnesium (0.51 %) and sulphur (0.28 %) and micronutrients viz., zinc (174 ppm), iron (255 ppm), manganese (193 ppm) and copper (35 ppm). The silkworm Pure Mysore reared on V1 mulberry variety leaves exhibited significantly maximum third, fourth and fifth instar larval weight (0.115 g, 0.615 g and 3.603 g, respectively), effective rate of rearing (98.67 %), cocoon weight (1.284 g), shell weight (0.181 g), cocoon shell ratio (14.10 %), silk productivity (2.405 cg/day), filament length (353.14 m), finer filament denier (1.62), pupal weight (1.103 g), pupation rate (93.24 %), moth emergence (94.29 %), fecundity (456.33) and hatchability (98.03 %). Minimum third, fourth and fifth instar larval duration (3.99, 4.10 days and 7.21 days, respectively), larval mortality (0.67 %) and defective cocoons (0.67 %) were also observed with the same variety. The correlation studies shows that, as chemical composition of mulberry leaf increases the larval, cocoon and grainage characters were also found to be improved except for crude fibre content.