Thermal Requirement, Heat and Radiation Use Efficiency of Kharif Soybean in Middle Gujarat Region as Influenced by Cultivars and Plant Geometry
Vibha Tak *
Agricultural Meteorological Cell, N. M. College of Agriculture, Navsari Agricultural University, Navsari- 396 450 (Gujarat), India.
M. M. Lunagaria
Department of Agricultural Meteorological, B. A. College of Agriculture, Anand Agricultural University, Anand- 388 110 (Gujarat), India.
V. B. Virani
Agricultural Meteorological Cell, N. M. College of Agriculture, Navsari Agricultural University, Navsari- 396 450 (Gujarat), India.
P. K. Parmar
Agricultural Meteorological Cell, N. M. College of Agriculture, Navsari Agricultural University, Navsari- 396 450 (Gujarat), India.
*Author to whom correspondence should be addressed.
Abstract
The present study proposes to measure the thermal requirements, heat and radiation use efficiency of kharif soybean cultivars (NRC 37, GS 1 and GS 2) in the central region of Gujarat. The findings of study conclude that among all the different geometry 30 x 10 cm produced highest seed (4403 kg/ha) and total biomass yield (5818 kg/ha) over the other two spacing because higher heat use efficiency (heat use efficiency (HUE) for Growing degree day (GDD)- 0.69 kg/ha/°C Day; HUE for Heliothermal units (HTU) - 0.14 kg/ha/°C Day hour; HUE for Photothermal units (PTU) - 0.05 kg/ha/°C Day hour). The cultivar NRC 37 (4415 kg/ha) produced highest seed yield followed by GS 1 (3799 kg/ha) and GS 2 (3670 kg/ha). Heat unit requirement of cultivar NRC 37 (GDD - 1952°C Day; HTU – 9894°C Day hour; PTU-25974°C day hour) was more as compared to GS 2 (GDD - 1951°C day; HTU – 9893°C day hour; PTU-25973°C day hour) and GS 1 (GDD - 1931°C day; HTU – 9809°C day hour; PTU-25681°C day hour), respectively. The radiation use efficiency (RUE) for seed yield and biomass are more in 45 x 5 cm geometry.
Keywords: Soybean, GDD, HTU, PTU, HUE and RUE
How to Cite
Downloads
References
Anonymous, Soybean Production by State, The Soybean Processors Association of India. 2022. Available:https://www.sopa.org/statistics/soybean-production-by-state/.
Virani VB, Neeraj Kumar, Mote BM. Evaluation of Thermal Indices in Relation to Phenology of Green Gram (Vigna radiata L.) under Different Growing Environments of Navsari Region of South Gujarat. Int. J. Curr. Microbiol. App. Sci. 2022;11(08):182-188.
Neog P, Bhuyan J, Baruah N. Thermal indices in relation to crop phenology and seed yield of soybean (Glycine max L. Merrill). J. Agrometeorol. 2008;10:388- 392.
Manish Bhan, Deshraj Patel LD, Walikar P, Vijaya Kumar, KK Agrawal. Thermal and radiation environments for assessing crop-weather relationship of soybean in eastern Madhya Pradesh. Journal of Agrometeorology. 2019;21(2):141– 147.
Usha Sri D, Jadhav MG. To Study the Thermal Requirement of Soybean (Glycine max) Varieties under Varied Environment at Parbhani District, India. Int. J. Curr. Microbiol. App. Sci. 2020;9(06):4056-4063.
Kaushik DK, Patel SR, Chandrawanshi SK, Khavse R, Chaudhary JL. A Study on agrometeorological indices for soybean crop under different sowing dates in Chhattisgarh region of India. Indian Journal of Agricultural Research. 2015;49(3):282-285.
Chavan KK, Khobragade AM, Kadam YE, Mane RB. A Study the heat unit requirement of soybean (Glycine max) varieties under varied weather condition at Parbhani. Journal of Pharmacognosy and Phytochemistry. 2018;7(3):526-530.
Tupe AR, Thawal DW, Kharbade SB, Ganvir MM, Morey ST, Lunge SV, Mali RS. Effect of sowing date on thermal time requirement, heat use efficiency and radiation interception of soybean. The Pharma Innovation Journal. 2023;12(1): 1866-1870.
Kumar A, Pandey V, Shekh AM, Kumar M. Radiation use efficiency and weather parameters influence during life cycle of soybean production as well as accumulation of dry matter. American-Eurasian Journal of Agronomy. 2008;1(2): 41-44.