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Ponnampet, India

Praveen Kumar N.,Forestry College | Devakumar A.S.,University of Agricultural Sciences, Bangalore | Sheshshayee M.S.,UAS | Mohankumar M.V.,UAS
Trees | Year: 2014

Key message Dendroclimatology can be a useful tool in assessing moisture stress tolerance in tree species that form distinct annual rings, especially in natural selection. This study is an attempt to demonstrate the use of dendroclimatology in assessing moisture stress response of teak. Genetic diversity of 48 teak clones was assessed using teak-specific microsatellite markers. Their growth rate was assessed in response to rainfall over 27 years. Dendroclimatological indicators such as mean ring-width index and mean sensitivity index of 48 clones showed close association between rainfall and growth. Lag-1 correlation (r = 0.9) indicated the possibility of carryover effect of rainfall on growth. Direct and positive relationship (R2 = 0.81) between biomass of annual rings and rainfall across the age, which is contrary to relationship that exists between annual ring width and age, emphasizes the need to use biomass as an additional indicator of growth than annual ring width per se. The relationship seen between δ13C discrimination and seasonal difference of rainfall indicates the role of moisture in stomatal conductance and hence carbon assimilation process which is a driving force of growth especially under moisture stress conditions. Growth differences seen among the clones are an indication of diversity among the clones for drought tolerance. The genetic diversity analyzed using 15 microsatellite markers did not match with the moisture stress response seen among the clones which imply the need for developing more specific markers for identifying moisture stress tolerance in teak. © 2014 Springer-Verlag Berlin Heidelberg. Source

Halakatti S.V.,U.S. Department of Agriculture | Gowda D.S.M.,U.S. Department of Agriculture | Gowda D.S.M.,KVK Inc | Kamaraddy V.,U.S. Department of Agriculture | Kamaraddy V.,Forestry College
International Journal of Agricultural and Statistical Sciences | Year: 2011

Stri Shakti - A Novel Programme started in Karnataka to empower rural women. The study conducted in Haveri distinct of Karnataka revealed that the members of the SHG borrowed money mainly for daily household expenses (23.09%) followed by health (19.63%) and festival and ceremony (16.17%). Sufficient money was saved through bulk purchases. Maximum profit was earned from dairy followed by preparation and sail of incense sticks and roti. In general, the SHGs have helped members in getting alternative livelihood and in generation of extra income. Source

Halakatti S.V.,U.S. Department of Agriculture | Gowda D.S.M.,U.S. Department of Agriculture | Gowda D.S.M.,Forestry College | Patil S.L.,U.S. Department of Agriculture
International Journal of Agricultural and Statistical Sciences | Year: 2011

In Karnataka, Haveri district is one of the important groundnut growing area. Many Front line Demonstrations (FLD) were organized in the district to popularize the improved production technologies. Hence, this study was conducted to study the performance of FLD. It was found that there were many gaps and constraints in adoption of recommended practices and the demonstrations plots have recorded higher percentage of B:C ratio. Source

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