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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: Horticulture × End date: 1959 ×
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    ThesisItemOpen Access
    STUDIES ON GENETIC DIVERSITY AND SEX LINKED MARKERS IN BETELVINE (Piper betle L.)
    (University of Agricultural Sciences GKVK, Bangalore, 12-08-11) KHADKE GANESH, NAVANATH; HIMA BINDU, K
    Betelvine is one of the heritage crops of India. In spite of being an important cash crop very limited research has been carried out in this crop. Molecular marker assisted investigations were undertaken to study the genetic diversity of betelvine accessions and Piper species and to identify of sex linked markers in P. betel. Genetic diversity analysis was carried out by using Inter Simple Sequence Repeats (ISSR) markers in 38 accessions of betelvine and one accession each of P. colubrinum and P. hamiltoni. Out of 60 ISSR primers tested, 15 were selected based on high and consistent polymorphism. The 15 ISSR primers generated a total 82 bands of which 72 were polymorphic. The different band statistics and efficiency parameters showed that the primers viz; UBC-822, 825, 826, 863 and ISSR-1, ISSR-15 were more efficient and UBC-828 the least efficient primer to study the genetic diversity. Studies UPGMA dendrogram and PCA plot revealed P. colubrinum to be the most distant of the three species. The Andaman accessions of betelvine clustered based on geographical origin and shared 70% similarity. Gender based clustering was also observed in the betelvine accessions. The study revealed that of ISSR primers were efficient in divulging the differences between Piper species and within P. betle. ISSR markers were used to identify sex linked markers in dioecious betelvine. Female and male bulk DNAs were screened with 35 ISSR primers. Two primers viz; ISSR-10 and UBC-852 produced male specific bands of size 459bp and 1250bp respectively. ISSR-23 amplified a female specific 636bp fragment. These primers were validated in the individuals of the bulks and showed a consistent sex specific expression. A sequence characterized amplified region (SCAR) was developed from the primer ISSR-23. The SCAR primers developed can further be utilized in sex identification in betelvine.
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    ThesisItemOpen Access
    Effect of provenance dates of sowing seed treatment chemical sprays on seed yield quality and storability of sunflower (helianthus annuus L)
    (University of Agricultural Sciences, Bengaluru, 11-11-18) P, Balakrishna; K. P, Rama Prasanna
    In the present study experiments on the effect of provenances, seed treatments and foliar sprays, dates of sowing on crop growth, seed yield and quality and seed treatment and packaging materials on storability of sunflower were carried out at University of Agricultural Sciences, GKVK, Bangalore. The results revealed that, higher germination and field emergence (88.07 and 79.94 %) was recorded in C4 (KBSH-44) and Z1 (Bangalore and Kolar) (93.07 and 84.80 %). Highest (96.45%) physical purity was found in Morden (C1) and Z1 (97.80 %). Highest (96.50%) genetic purity was recorded in C5 and Z1 (97.33%). Highest (41.33%) oil content was recorded in KBSH-1 (C2) and Z1 (37.48 %). In Morden and KBSH-1, T6 (Thiram @ 3g per kg + Metalaxyl 35 SD @ 2.5g per kg + Imidocloprid 70 WS @ 4g per kg seed treatment (Dry dressing) + Confidar 200 SL (0.1%) foliar spray at 30 DAS and Triazophos 40EC (Hostothion) @ 0.2% foliar spray at 45 DAS) recorded largest head diameter (15.00cm and 18.00cm), 100 seed weight 5.820 and 6.553g), more seed filling (88.86% and 90.00%), higher bulk seed yield per plant (37.93kg and 40.33kg), graded seed yield per plant (35.67 and 37.33 kg) and seed yield (1681.7 and 1773.3 kg/ha, respectively). Same treatment recorded highest germination (96.00 and 95.00%), seedling length (36.11 and 35.44 cm), highest seedling vigour index (3452 and 3366), oil content (34.82and 42.63%) were recorded in both Morden and KBSH-1. Among different sprays, significantly more number of plants per plot (93.92%), higher plant height (174cm), less number of days to 50 per cent flowering (59.33), maximum head diameter (16.17cm), higher seed yield (1359.6g/plot and 1384.1kg/ha) were recorded in S3 (.Thiram + Bavistin @ 3g/l). Among different dates of sowing, higher plant height (178.3cm), less number of days to 50 per cent flowering (58.58), maximum head diameter (16.50cm), higher seed yield (1270.8g/plot and 1411.5kg/ha) were recorded in D1(Sept 20). Better seed quality parameters were recorded in KBSH-41 followed by KBSH-44 at the end of 14 months of storage. Among different seed treatments, seeds treated with Neem seed kernel powder @ 15g/kg of seeds recorded higher seed quality. Among different packaging materials seed stored in polythene bag (700 guage) recorded higher seed quality. Higher germination (80.00%) was recorded in V2C3P3 at 14th months of storage and lower (56.33%) in V8C1P1. Higher oil content (42.74% at 12th month of storage) was recorded in V2C1P3 and lower in V1C1P2 (30.11%).