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International Journal of Current Microbiology and Applied Sciences (IJCMAS)
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National Academy of Agricultural Sciences (NAAS)
NAAS Score: *5.38 (2019)
[Effective from January 1, 2019]
For more details click here

ICV 2018: 95.39
Index Copernicus ICI Journals Master List 2017 - IJCMAS--ICV 2018: 95.39
For more details click here

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Int.J.Curr.Microbiol.App.Sci.2019.8(12): 925-930
DOI: https://doi.org/10.20546/ijcmas.2019.812.118


Thermal Requirement of Green Gram (Vigna radiate L.) Varieties at Different Phenological Stages under Varied Weather Condition
B.R. Bobade1*, B.V. Asewar2, S. M. Nikam3 and K.K. Dakhore4
1FASAL Agricultural Meteorology, 2Department of Agronomy, 3Department of Agricultural Meteorology, 4AICRP on Agricultural Meteorology, VNMKV, Parbhani (M.S), India
*Corresponding author
Abstract:

Green gram (Vigna radiate L.) is a short day plant and generally requires fairly hot conditions for its optimum growth and yield. Crop growth and development are closely related with energy requirement parameters, such as growing degree days (GDD), photo-thermal unit (PTU) and Helio-thermal Units (HTU). Therefore, GDD and other agro-meteorological indices requirement for different phenological stages of green gram genotypes was carried out during kharif season 2015 at experimental farm of department of Agricultural Meteorology, College of Agriculture, Parbhani. The treatment combination of three sowing dates and genotype were replicated thrice in split plot design i.e. D1 (25th MW), D2 (26th MW) and D3(27th MW) and four genotype BM-4, BPMR-145, BM-2003-2 and BM-2002-1 were sown with spacing of 30 x 10 cm. The gross and net plot size were 4.5 m x 4.0 m and 3.9 m x 3.6 m respectively. Other operations were carried out as per recommendations. The results revealed that the total GDD required during crop growth period was highest in D2 (MW 26) i.e. 480.210Cd day-1 day and it was followed by and D1 (MW 25) was 479.580Cd day-1 and D3 (MW 27) i.e. 459.740Cd day-1 respectively. Due to continuous cloudy weather condition, low temperature at maturity to harvesting stage (P4) i.e. drying stage required more days and increase duration of crop. In case of varieties, GDD requirement of all the varieties during crop life cycle was for BM-4 (471.270C), BM-2002-1(465.920C), BM-2003-2 (474.240C) and BPMR-145 (481.420C) respectively during total crop growth period. HTU required during total crop growth period was highest in D1 (MW 25) i.e. 2876.470C day hour as compared to remaining dates of sowing. In case of varieties, V4 (BPMR-145) required highest total HTU i.e. 2849.690C day hour as compared to other three varieties. HTU required during total crop growth period was highest in D1 (MW 25) i.e. 6278.090C day hour as compare to remaining treatments. In case of varieties V4 (BPMR-145) required highest total HTU i.e. 6261.270C day hour as compare to other three varieties. It might be due to genotypical differences in crop duration and yield.


Keywords: Green gram, Phenophases,GDD, HTU, PTU
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How to cite this article:

Bobade, B. R., B. V. Asewar, S. M. Nikam and Dakhore, K. K. 2019. Thermal Requirement of Green Gram (Vigna radiate L.) Varieties at Different Phenological Stages under Varied Weather Condition.Int.J.Curr.Microbiol.App.Sci. 8(12): 925-930. doi: https://doi.org/10.20546/ijcmas.2019.812.118