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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: Crop Physiology × Start date: 1970 × Rating Count: 5 × Thesis Type: M.Sc ×
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    ThesisItemOpen Access
    Population genetics of an endemic tree species Myristica malabarica Lam., and evaluation of ecological niche model
    (University of Agricultural Sciences GKVK, Bangalore, 40865) SHIVA PRAKASH, K. N; Uma Shaanker, R
    In recent years, ecological niche models (ENM) have become a popular tool to define and predict the “ecological niche” of a species. The ENMs have been extensively used in locating rare and threatened species and in rationalizing the choice of habitats for species re-introduction. An implicit assumption of the ENMs is that the predicted ecological niche of a species actually reflects the adaptive landscape of the species. Thus sites that are predicted to be highly suitable would be expected to maximize the local fitness of species’ population in contrast to sites predicted to be unsuitable. Till date there is no published evidence in support of this assumption. We attempt to evaluate this assumption. Using an ecological niche modeling tool (DIVA-GIS (version 7.3, htpp://www.diva-gis.org) we predicted the potential geographic distribution and habitat suitability classes (from highly suitable to poorly suitable) of an economically important and vulnerable tree Myristica malabarica.Lam occurring in the Western Ghats, India. We located populations of M. malabarica naturally occurring in three of the predicted habitat suitability classes, namely-highly suitable, moderately suitable and poorly suitable and evaluated them for direct and indirect measures of fitness. Populations of M. malabarica at habitat sites predicted to be highly suitable sites by ENM had a significantly greater number of stems and higher regeneration index (number of saplings for every adult) compared to populations in poorly suitable habitat. Further, individuals in highly suitable sites exhibited significantly less fluctuating asymmetry (FA)-an index of greater genetic homeostasis and significantly higher specific leaf weight (SLW)-an index of primary productivity, compared to individuals in the poorly suitable habitats. Finally, the populations in the highly suitable habitats had a significantly greater number of alleles and a larger proportion of private or rare alleles compared to those from less suitable sites. These results for the first time provide an explicit test of the ENM with respect to species’ fitness. We discuss the implication of these results in the context of designing viable species conservation and restoration programmes