Efficacy of benzyladenine for compensating the reduction in soybean productivity under low water supply

Authors

  • Hani Saber Saudy Agronomy Department, Faculty of Agriculture, Ain Shams University, P.O. Box 68–Hadayek Shoubra 11241, Cairo
  • Ibrahim Mohamed El–Metwally Botany Department, National Research Centre, P.O. Box 12622–Dokki, El–Behos St. Dokki, Cairo
  • Magdi Tawfik Abdelhamid Department, National Research Centre, P.O. Box 12622–Dokki, El–Behos St. Dokki, Cairo

DOI:

https://doi.org/10.36253/ijam-872

Keywords:

deficit water, growth promoters, relative growth rate, soybean oil

Abstract

Undoubtedly, drought is a negative consequence of climate change. Farmers have to deal with this issue and may be forced to irrigate their crops with less water than required, however reduction in productivity is anticipated. Thus, two–year field trials were conducted to assess the impact of irrigation regimes (60, 80 and 100% of crop evapotranspiration, denoted ET60, ET80, and ET100, respectively) and benzyladenine rates (0, 50, 100, 150 and 200 mg L?1, symbolized as BA0, BA50, BA100, BA150, BA200, respectively) on soybean. Findings clarified that the maximum increases in plant height and net assimilation rate were obtained with the interactions of ET100 or ET80 x BA200 or BA150 in both seasons. ET80 x BA200 (in both seasons) and ET100 x BA150 (in the first season) were as similar as ET100 x BA200 for enhancing pods number plant?1. Irrigation water use efficiency progressively increased with decreasing irrigation water amount and increasing benzyladenine rate. In conclusion, the reduction in seed yield due to lowering water supply up to 80% of crop evapotranspiration (with saving 20% of irrigation water) could be compensated using benzyladenine, 150 mg L?1, thus it should be involved in soybean irrigation programs.

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Published

2021-12-27

How to Cite

Saudy, H. S., El–Metwally, I. M., & Abdelhamid, M. T. (2021). Efficacy of benzyladenine for compensating the reduction in soybean productivity under low water supply. Italian Journal of Agrometeorology, (2), 81–90. https://doi.org/10.36253/ijam-872

Issue

No. 2 (2021)

Section

RESEARCH ARTICLES

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