PJB-2022-293
Influence of simulated acid rain on morphological and phytochemicals attributes of guar (Cyamopsis tetragnoloba L.)
Noureen Jatoi, Farzana Korejo, Syed Habib Ahmed Naqvi, Asghar Ali Shaikh, Noor-Ul-Ain Soomro, Aftab Hussain Khaskheli, Muhammad Rafiq and Sohail Raja Jatoi
Abstract
The global environment is contaminated day by day due to urbanization, industrialization, burning of fossil fuels, etc., causing the occurrence of toxic gases in the environment. These gases are mixed with wet air and cause acidic rain, which can foremost be hazardous to plant kingdoms, reduction of crop yield, forest declination, and acidification of water and soil.
Guar (Cyamopsis tetragonoloba L.) is a leguminous plant that is mainly cultivated as an important commercial and export crop of Pakistan. The aim of the present study is to examine the effect of simulated acid rain (SAR) of various ranges of pH of HNO3 on morphology and phytochemicals attributes of Guar due to very limited information available on the harmful effects of acid rain on different crops, especially on Guar. The results of existing study showed that the growth of Guar was remarkably inhibited by SAR of pH 2.0 and pH 3.0. However, the number of leaves and shoot were appeared but badly influenced when treated with SAR solution of pH 4.0 and pH 5.0. Whilst, the number of leaves, shoot length, and number of fruits increased at pH 6.0.
A comparative study of the phytochemical investigation of SAR-affected plants, exhibited high total protein contents, total sugar, phenolic compounds, and antioxidant activity at pH-6 though reduced at low pH 4.0 and 5.0 of HNO3 used as SAR. It is concluded that the growth and phytochemicals ingredients at low pH were badly affected and highly reduced as compared to the control.
To Cite this article:
Jatoi, N., F. Korejo, S.H.A. Naqvi, A.A. Shaikh, N.U.A. Soomro, A.H. Khaskheli, M. Rafiq and S.R. Jatoi. 2025. Influence of simulated acid rain on morphological and phytochemicals attributes of guar (Cyamopsis tetragnoloba L.). Pak. J. Bot., 57(1): DOI: http://dx.doi.org/10.30848/PJB2025-1(19)
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