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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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20121
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Subject: Seed Science and Technology × Author: A. B, Narayanareddy × Thesis Type: Ph.D ×
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    ThesisItemOpen Access
    Studies on flowering behaviour of parental lines, seed setting, seed yield, quality and storage behaviour of hybrids in sunflower (Helianthus annuus L.)
    (University of Agricultural Sciences, Bengaluru, 2012-10-31) A. B, Narayanareddy; Rame, Gowda
    A field and laboratory experiments were conducted to study the influence of seasons on flowering behaviour, seed setting, seed yield and quality in parental lines of different sunflower hybrids; seed maturation, occurrence, natural dissipation and safe removal of seed dormancy in sunflower and efficacy of seed treatment chemicals and packing materials on storability of sunflower hybrids at the Department of Seed Science and Technology, Gandhi Krishi Vignana Kendra, University of Agricultural Sciences, Bangalore, during 2010-12. The results revealed that, female parents took less number of days (63.83) when compared to male parents (67.69), irrespective of seasons and years. Higher number of days taken for 50 per cent flowering was recorded in CMS 335A (69.67, 80.67) and it was significantly lower in CMS 234A (55.33, 64.67) in both kharif and rabi, 2010, respectively. The flowering behaviour of these parental lines was also similar during 2011. Among A lines highest number of filled seeds per capitulum was recorded in CMS 335A (763.13 and 1083.87) as against the lowest recorded in CMS 234A (454.0 and 671.0) in kharif and rabi, 2010, respectively. The seed yield per plant was highest in CMS 17A (37.20 g) and CMS 335A (46.44 g), while it was lowest in CMS 234A (26.77g and 37.29 g) during kharif and rabi, 2010, respectively. In 2011 also similar trend has been observed. The processed seed yield was highest in CMS 17A (16.07 q/ha and 20.58 q/ha) and it was lowest in CMS 234A (9.83 q/ha) and CMS 851A (13.97 q/ha) during kharif in both 2010 and 2011, respectively. However, among the male parents RHA 6D-1 recorded highest processed seed yield (2.59 q/ha and 5.39 q/ha) than RHA 95C-1 (1.83 q/ha and 5.36 q/ha) in both 2010 and 2011, respectively. During rabi, CMS 335A recorded highest processed seed yield (23.66 q/ha and 21.67 q/ha) in both years, respectively. However, among the male parents, RHA 95C-1 recorded highest processed seed yield (6.63 q/ha and 6.43 q/ha) during 2010 and 2011, respectively. Among the seasons and years, the mean processed seed yield was significantly superior in rabi 2010 (20.47 q/ha) as well as 2011 (18.45 q/ha) and it was lowest in kharif 2010 (13.27 q/ha) in the female parents. The male parents recorded significantly higher processed seed yield (6.53 q/ha) during rabi compared to kharif (2.21 q/ha). Oil content was highest in both CMS 851A (39.04 %) and CMS 335A (39.94 %), however it was lowest in CMS 17A (33.65 % and 35.13 %) during kharif and rabi 2010, respectively. Sunflower hybrids require 30 to 35 days after pollination (DAP) during kharif and 35 to 40 DAP in rabi to reach physiological maturity with better seed quality attributes. A dormancy period of 50 to 70 days has been noticed in sunflower hybrids and its R lines. However, this can be safely removed either by Ethrel @ 25 ppm or GA3 @ 100 ppm; KNO3 @ 0.2 %; pre-chilling (40C for 72 hours); Thiourea @ 0.1 % or by dry heat treatment (450C for 18 hours) in the order of merit. Further, the storage study revealed that conventional chemical seed treatment could be useful to prolong the storage life and preserve the quality of sunflower seeds. KBSH-44 hybrid maintained prescribed germination standards (70.0%) up to ten months when compared to KBSH-41 (eight months) and KBSH-53 (seven months). Seeds packed in polypouches maintained prescribed minimum certification standards of germination up to nine months. Therefore, poly pouches and super grain bag (polypropylene) could be safely used for better preservation of sunflower seeds. Seed treated with Imidacloprid, powder form (WP) @ 5g/kg or Thiram @ 3 g /kg could be stored up to nine months with the prescribed germination of minimum seed certification standards.