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Journal of Pharmacognosy and Phytochemistry

Journal of Pharmacognosy and Phytochemistry

Vol. 9, Issue 2 (2020)

Correlation studies in weather parameters and yield of green gram varieties under changing weather conditions

Author(s):

BR Bobade, Dr. BV Asewar and BS Bhalerao

Abstract:
An experiment was carried out at experimental farm of Department of Agricultural Meteorology, College of Agriculture, Vasantrao Naik Marathwada Krishi Vidyapeeth, Parbhani, during Kharif season 2015 entitled “Influence of dates of sowing on kharif green gram [Vigna radiate (L.) Wilczek] varieties under varied weather conditions” to find out most suitable week for sowing of Green gram in kharif season and to work out the correlation between yield of green gram and weather parameters. The experiment was conducted in Spilt plot design with three replications. Treatments comprised of three sowing dates in main plot D1(25MW), D2 (26MW) & D3 (27MW) with four varieties in sub plot viz. BM-4, BPMR-145, BM-2003-2 and BM-2002-1.The crop was sown with spacing 30×10 cm. Gross and net plot size viz. 4.5 m x 4.0 m and 3.9 m x 3.6 m respectively. The result obtained from experiment revealed that all biometric observations (Plant height(cm), number of functional leaves, dry matter (gm), number of pods per plant) and yield of kharif green gram were significantly highest in first date D1 25 MW (18 to 24 June) as compared to other date of sowing. The green gram variety BM-2003-2(510 kg ha-1) was found to be highly productive as compared to BM-2002-1(467 kg ha-1), BM-4 (402 kg ha-1) and BPMR-145 (346 kg ha-1). The correlation study was carried out between weather variables prevailed during (P1) to (P5) growth stages of different varieties under different sowing dates. The correlation coefficient showing degree of association between seed yield and weather variables prevailed during growth stages of green gram crop. Rainfall and rainy days were found significantly negative correlated at P2 (-0.663*), (-0.597*) and P3 (-0.665*), (-0.661*) respectively.
Tmax and Tmin were found significantly positive correlation at P2 (0.698*), P3 (0.624*) while Tmaxwere found significantly negative correlation at P4 (-0.727*) and Tmin at P1 (-0.605*). RH-I was found significantly positive correlation at P4 (0.685*) and found significantly negative correlated at P2 (-0.712*), P3 (-0.692*), and (-0.685*). RH-II was found significantly negatively correlated at P2 (-0.762*). Evaporation was found significantly negatively correlated at P1 (-0.691*) and at P4 (-0.743**) while it found significantly positive correlation at P2 (0.663*) and at P3 (0.769**). BSS was found significantly negatively correlated at P3 (-0.035*) and at P4 (-0.738**) while it found significantly positive correlation at P5 (0.676*) Wind velocity was found significantly positive correlation at P3 (0.640*) and at P4 (0.698*).

Pages: 1185-1189  |  1049 Views  522 Downloads


Journal of Pharmacognosy and Phytochemistry Journal of Pharmacognosy and Phytochemistry
How to cite this article:
BR Bobade, Dr. BV Asewar and BS Bhalerao. Correlation studies in weather parameters and yield of green gram varieties under changing weather conditions. J Pharmacogn Phytochem 2020;9(2):1185-1189.

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