Evaluating radiation interception pattern and RUE of green gram grown in Lower Gangetic Plains and assessing future yield based on RUE

Authors

  • SARATHI SAHA Dept of Agril Meteorology & Physics, BCKV, Mohanpur, Nadia, India
  • SAON BANERJEE Dept of Agril Meteorology & Physics, BCKV, Mohanpur, Nadia, India
  • SOUMEN MONDAL Dept of Agronomy, UBKV. Pundibari, Coochbehar, India
  • ASIS MUKHERJEE Dept of Agril Meteorology & Physics, BCKV, Mohanpur, Nadia, India
  • RAJIB NATH Dept of Agronomy, BCKV, Mohanpur, Nadia, India
  • SHIBANI CHOWDHURY RRS,, BCKV, Kakdwip, South 24 Parganas, India

DOI:

https://doi.org/10.54386/jam.v24i1.830

Keywords:

Absorbed PAR, Green gram, Intercepted PAR, Radiation use efficiency

Abstract

An experiment was conducted in the Lower Gangetic Plains of West Bengal during 2017 and 2018 with three popular green gram varieties of the region (viz. Samrat, PM05 and Meha). Along with studying the variation of PAR components, a radiation use efficiency (RUE) based equation irrespective of varieties was developed and used to estimate the green gram yield for 2040-2090 period under RCP 4.5 and 8.5 scenarios. Field experimental results showed that almost 33.33 to 52.12% higher yield was recorded in 2017 in comparison to 2018. As observed through pooled experimental data of two years, PM05 produced 3 to 4% higher pod and 4 to 15% more biomass than Samrat and Meha with the highest radiation use efficiency (1.786 g MJ-1). Results also depicted that enhanced thermal condition would cause 9 to 15 days of advancement in maturity. Biomass and yield would also decrease gradually from 2040 to 2090 with an average rate of 7.60-11.70% and 10.19-14.17% respectively. The supporting literature confirms that future yield prediction under projected climate based on “radiation to biomass” conversion efficiency can be used successfully as a method to evaluate climate change impact on crop performance.

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Published

11-02-2022

How to Cite

SARATHI SAHA, SAON BANERJEE, SOUMEN MONDAL, ASIS MUKHERJEE, RAJIB NATH, & SHIBANI CHOWDHURY. (2022). Evaluating radiation interception pattern and RUE of green gram grown in Lower Gangetic Plains and assessing future yield based on RUE. Journal of Agrometeorology, 24(1), 3–9. https://doi.org/10.54386/jam.v24i1.830

Issue

Vol. 24 No. 1 (2022): March

Section

Research Paper

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Copyright (c) 2022 SARATHI SAHA, SAON BANERJEE, SOUMEN MONDAL, ASIS MUKHERJEE, RAJIB NATH, SHIBANI CHOWDHURY

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