PJB-2019-353
Growth parameters and antioxidant enzymes activities in selected halophytic grass species from Cholistan rangeland, Pakistan under salinity stress
Muhammad Rafay, Muhammad Abid, Muhammad Abdullah, Zaffar Malik, Hussain Ahmed Makki, Zulfiqar Ahmed and Muhammad Umair Riaz
Abstract
The study was conducted to evaluate the antioxidant enzymes activities, chlorophyll contents, growth parameters in four halophytic grasses Khawi (Cymbopogon jwarancusa), Kalarghaa (Aeluropus lagopoides), Morat (Panicum antidotale) and Dhaman (Cenchrus setigerus) from Cholistan Rangeland, Pakistan. The experiment was conducted hydroponically in the research area of department of Forestry, Range and Wildlife Management, The Islamia University of Bahawalpur, Pakistan. The results revealed that biomass production in the selected halophytes increased with increasing salinity while under highly saline conditions. Aeluropus lagopoides produced highest number of leaves (19.6 A) at 140 mM NaCl while at 70 mM NaCl Cymbopogon jwarancusa had the maximum number of leaves (24 A). Highest chlorophyll contents were recorded in Aeluropus lagopoides (1.14 A) at 140 mM NaCl while at 70 mM NaCl Cenchrus setigerus produced more chlorophyll contents (0.93 A). Shoot length was recorded (80.23 A) in A. lagopoides under 140 mM NaCl and it reduced its length (27.63 C) at 210 mM NaCl while at 70 mm NaCl C. jwarancusa had the maximum shoot length (72.8 A). Under 70 mM NaCl root length (48.93 A) was measured in P. antidotale and has reduced to (29.06 C) at 210 mM NaCl. At 140 mM NaCl highest root length (43.05 A) was observed in A. lagopoides. Root length in C. jwarancusa was (16.9 D) at 210 mM NaCl while it had root length (47.41 A) at 70 mM NaCl salt level. Antioxidant enzymes activities of SOD enzymes activity was found maximum in A. lagopoides (40.67 A) with the minimum value was in C. setigerus (10.67 D). While the CAT enzyme activity was at highest value at 0 mM NaCl (35.67 A) in A. lagopoides and its value was decreased with the increasing salinity in all four species and it was (8.33 D).
To Cite this article:
Rafay, M., M. Abid, M. Abdullah, Z. Malik, H.A. Makki, Z. Ahmed and M.U. Riaz. 2021. Growth parameters and antioxidant enzymes activities in selected halophytic grass species from Cholistan rangeland, Pakistan under salinity stress. Pak. J. Bot., 53(3): DOI: http://dx.doi.org/10.30848/PJB2021-3(22)
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