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Response of Black Gram Varieties to Sowing Times under Rain Fed Vertisol of Southern Tamil Nadu


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1 Agricultural Research Station (T.N.A.U.), Kovilpatti (T.N.), India
     

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The field experiments were conducted during 2010-11, 2011-12 and 2012-13 in Rabi season (October - December) at Agricultural Research station, Kovilpatti to identify the optimum time of sowing and best suitable blackgram variety for rainfed vertisol. Experiments were laid out in split-plot design with three replications. The treatment combinations comprised of three dates of sowing viz., 39th, 41st and 43rd standard weeks (pre monsoon, monsoon and post monsoon sowing, respectively) in main plot with four different black gram varieties viz., CO 5, CO 6, Vamban 4 and Vamban 5 in the sub plot. The results revealed that sowing during 39th standard week (pre monsoon-D1) registered increased growth and yield parameters viz., plant height, DMP,LAI, number of pods/plant, number of seeds/pod, pod length, 100 seed weight, which reflected on increased grain yield. Similarly among the varieties tried CO 5 registered higher growth and yield attributes which reflected on increased grain yield which was followed by Vamban 4.

Keywords

Black Gram, Dates of Sowing, Genotypes, Growth, Yield.
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  • Response of Black Gram Varieties to Sowing Times under Rain Fed Vertisol of Southern Tamil Nadu

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Authors

S. Subbulakshmi
Agricultural Research Station (T.N.A.U.), Kovilpatti (T.N.), India

Abstract


The field experiments were conducted during 2010-11, 2011-12 and 2012-13 in Rabi season (October - December) at Agricultural Research station, Kovilpatti to identify the optimum time of sowing and best suitable blackgram variety for rainfed vertisol. Experiments were laid out in split-plot design with three replications. The treatment combinations comprised of three dates of sowing viz., 39th, 41st and 43rd standard weeks (pre monsoon, monsoon and post monsoon sowing, respectively) in main plot with four different black gram varieties viz., CO 5, CO 6, Vamban 4 and Vamban 5 in the sub plot. The results revealed that sowing during 39th standard week (pre monsoon-D1) registered increased growth and yield parameters viz., plant height, DMP,LAI, number of pods/plant, number of seeds/pod, pod length, 100 seed weight, which reflected on increased grain yield. Similarly among the varieties tried CO 5 registered higher growth and yield attributes which reflected on increased grain yield which was followed by Vamban 4.

Keywords


Black Gram, Dates of Sowing, Genotypes, Growth, Yield.

References