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1992 - 1999502000 - 200538
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Subject: Sericulture ×

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Now showing 1 - 9 of 89
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    ThesisItemOpen Access
    QUANTIFICATION, NUTRITIONAL COMPOSITION OF ERI SILKWORM EXCRETA AND ITS POSSIBLE USE IN BIOGAS PRODUCTION
    (University of Agricultural Sciences GKVK, Bangalore, 1994) Naika, Ramakrishna; Raghunatha Reddy, D N
    ABSTRACT NOT AVAILABLE
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    ThesisItemOpen Access
    COLCHICINE MUTAGENESIS IN MULBERRY SILKWORM Bombyx mori L.
    (University of Agricultural Sciences GKVK, Bangalore, 1993) Keshawa Murthy, B; Nangia, Neelu
    ABSTRACT NOT AVAILABLE
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    ThesisItemOpen Access
    A PROJECT REPORT ON POST GRADUATE DIPLOMA IN SERICULTURE
    (University of Agricultural Sciences GKVK, Bangalore, 1992) Chandrappa, M H; Devaiah, M C
    ABSTRACT NOT AVAILABLE
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    ThesisItemOpen Access
    STUDIES ON REARING PERFORMANCE OF NEW BIVOLTINE BREEDS OF SILKWORM, Bombyx mod L. ON IMPROVED MULBERRY VARIETIES
    (University of Agricultural Science, Dharwad, 2002) Ravinder; Rayar, S G
    "The studies on the rearing performance of CSR-18 and CSR-19 breeds on iroved mulberry varieties were conducted at Department of Sericulture, University Agricultural Sciences, Dharwad during summer and pre-rainy season. In both rearings CSR-18 and CSR-19 breeds performed better than NB^D^ in most of economic traits. Among the breeds, the performance of CSR-19 was superior :hawki larval weight, full grown larval weight, fifth instar larval duration, total /al duration, silk productivity, cocoon weight, cocoon shell weight, cocoon all ratio, number of cocoon per kg, cocoon yield per 10,000 worms, cocoon ment length, pupal weight, pupal duration, moth emergence, flacherie incidence. lereas, CSR-18 was superior in effective rate of rearing, per cent pupation, pal duration, fecundity, by recording lower grasserie incidence. Whereas, fifth instar larval duration was short in NB^D^ as compared to CSR-18 and R-19. Among the mulberry varieties, V-1 fed silkworms produced the highest chawki val weight, silk productivity, effective rate of rearing, cocoon and shell weight, coon shell ratio, least number of cocoon per kg, cocoon yield per 10,000 worms, iment length, pupal weight, per cent pupation, pupal duration, moth emergence, jundity, hatching percentage and least grasserie incidence. However, S-41 was par with V-1 in chawki larval weight, silk productivity, effective rate of rearing, coon weight, cocoon shell weight, cocoon shell ratio, number of cocoon per kg, coon yield per 10,000 worms, filament length, pupal weight, per cent pupation, oth emergence and hatching percentage. S-41 was superior to S-54 and M-5 alberry varieties. Superior denier was recorded in M-5 fed silkworms."
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    ThesisItemOpen Access
    STORABILITY AND FIELD SPRAY OF BOTANICALS ON MULBERRY AND ITS EFFECT ON Bombyx mori L.
    (University of Agricultural Science, Dharwad, 2000) 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%), fecundit}- (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."
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    ThesisItemOpen Access
    RESPONSE OF MULBERRY TO SOURCES OF PHOSPHORUS AS INFLUENCED BY ‘P' SOLUBILIZING MICRO-ORGANISMS IN RELATION TO COCOON PRODUCTION
    (University of Agricultural Science, Dharwad, 1996) Gowda, Raje; Shankar, M A
    ABSTRACT NOT AVAILABLE
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    ThesisItemOpen Access
    INFLUENCE OF COOKING DURATIONS ON REELING PERFORMANCE OF SOME OF THE DEFECTIVE MULBERRY SILK COCOONS
    (University of Agricultural Science, Dharwad, 1996) Nagaraja, N; Nageshchandra, B K
    ABSTRACT NOT AVAILABLE
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    ThesisItemOpen Access
    HETEROSIS AND COMBINING ABILITY STUDIES IN NEW MULTIVOLTINE x BIVOLTINE HYBRIDS OF SILKWORM Bombyx mori L. THROUGH LINE x TESTER ANALYSIS.
    (University of Agricultural Science, Dharwad, 1995) Nagendra, A C; Visweswara Gowda, B L
    ABSTRACT NOT AVAILABLE
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    ThesisItemOpen Access
    EFFECT OF FEED ADDITIVE ON GROWTH AND COCOON YIELD OF SILKWORM Bombyx mori L.
    (University of Agricultural Science, Dharwad, 1995) Nagesh, S; Devaiah, M C
    ABSTRACT NOT AVAILABLE