Microclimatic conditions under different shade trees and their effect on tea leaf growth rate

Authors

  • KUSHAL SARMAH Dept. of Agril. Meteorology, College of Agriculture, Assam Agricultural University, Jorhat-785013, Assam https://orcid.org/0000-0002-6034-6316
  • SAON BANERJEE Dept. of Agril. Meteorology & Physics, Bidhan Chandra Krishi Viswavidyalaya, Mohanpur, Nadia, West Bengal, PIN-741252
  • GAUTAM SAHA Dept. of Agril. Meteorology & Physics, Bidhan Chandra Krishi Viswavidyalaya, Mohanpur, Nadia, West Bengal, PIN-741252
  • ASIS MUKHERJEE Dept. of Agril. Meteorology & Physics, Bidhan Chandra Krishi Viswavidyalaya, Mohanpur, Nadia, West Bengal, PIN-741252
  • M. K. NANDA Dept. of Agril. Meteorology & Physics, Bidhan Chandra Krishi Viswavidyalaya, Mohanpur, Nadia, West Bengal, PIN-741252
  • DOLGOBINDA PAL Dept. of Agril. Meteorology & Physics, Bidhan Chandra Krishi Viswavidyalaya, Mohanpur, Nadia, West Bengal, PIN-741252
  • MANISH KUMAR NASKAR Dept. of Agril. Meteorology & Physics, Bidhan Chandra Krishi Viswavidyalaya, Mohanpur, Nadia, West Bengal, PIN-741252
  • MANURANJAN GOGOI Dept. of Tea Husbandry and Technology, College of Agriculture, Assam Agricultural University, Jorhat-785013, Assam
  • KULDIP MEDHI Dept. of Agril. Meteorology, College of Agriculture, Assam Agricultural University, Jorhat-785013, Assam

DOI:

https://doi.org/10.54386/jam.v27i3.2882

Keywords:

Tea, Green leaf growth rate, PAR, Temperature, Soil moisture, Relative humidity

Abstract

Micrometeorological variations within the tea canopy influence the tea yield to a considerable extent. An experiment was conducted at the Experimental Garden of Assam Agricultural University Jorhat, Assam during 2022 - 2024 to examine the effects of five shade tree species viz., Sao koroi (Albiziachinensis), Xil koroi (Albizia  odoratissima), Neem (Azadirachta indica), Amla (Phyllanthus emblica), and Areca nut (Areca catechu) on  micrometeorological parameters such as air temperature (AT), canopy temperature (CT), relative humidity (RH), photosynthetically active radiation (PAR), soil moisture (SM), soil temperature (ST), and rainfall (RF) affecting leaf growth and yield. The highest green leaf growth rate (GLGR) occurred during the monsoon season (41.7 ± 12.1 kgha-1day-1), with the highest GLGR (41.8 ± 13.1 kgha-1day-1) achieved under Neem shade. GLGR has a significant positive correlation with most of the parameters except rainfall which showed no significant influence on GLGR. Regression analysis revealed that rainfall negatively impacted GLGR. This study highlights the role of shade trees in mitigating stress and optimizing growth conditions, providing insights into sustainable tea cultivation practices.

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Published

01-09-2025

How to Cite

SARMAH, K., BANERJEE, S., SAHA, G., MUKHERJEE, A., NANDA, M. K., DOLGOBINDA PAL, NASKAR, M. K., GOGOI, M., & MEDHI, K. (2025). Microclimatic conditions under different shade trees and their effect on tea leaf growth rate . Journal of Agrometeorology, 27(3), 267–272. https://doi.org/10.54386/jam.v27i3.2882

Issue

Vol. 27 No. 3 (2025): September

Section

Research Paper

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Copyright (c) 2025 KUSHAL SARMAH, SAON BANERJEE, GAUTAM SAHA, ASIS MUKHERJEE, M. K. NANDA, DOLGOBINDA PAL, MANISH KUMAR NASKAR, MANURANJAN GOGOI, KULDIP MEDHI

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