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PJB-2020-319

Physiological and biochemical attributes of Agave sisalana resilient adaptation to climatic and spatio-temporal conditions

Sobia Shahzad, Mumtaz Hussain, Muhammad Arfan and Hassan Munir
DOI:10.30848/PJB2022-1(15)


Abstract

Plant’s behavior varies physiologically and chemically in wake of its adaptation to environmental changes. Sisal (Agave sisalana Perrine) is less explored in climatic conditions of Pakistan. In the present work, physiological and biochemical responses of sisal plant under different natural environmental conditions in Punjab province of Pakistan‘s five districts having diverse climates from arid to semi-arid were selected. The selected districts included Chakwal, Khushab, Rawalpindi, Faisalabad and Layyah were studied through seasonal surveying during all four seasons and sampling of plant material were done for a period of two years 2017-2019. The data regarding total chlorophyll content, total soluble protein content, total soluble sugar content, total soluble phenolics, photosynthetic rate, transpiration rate, stomatal conductance, sub-stomatal CO2 concentration and water use efficiency were investigated. The spring season reflected highest value of photosynthetic rate, transpiration rate, stomatal conductance, and sub stomatal CO2 concentration at Rawalpindi district during 2018-2019 as compared to other seasons. The maximum total soluble sugars and total soluble phenolics content were also recorded in Rawalpindi district during spring of 2018-2019. Total soluble protein content increased in the Chakwal district during winter season of both years. However, total chlorophyll contents were maximum in spring season and were reduced during summer and autumn seasons in district Chakwal during 2018-2019. Overall spatial and temporal heterogeneity was clearly seen for the physiological and biochemical attributes of Agave sisalana. Based on hardy growth habit, sisal cultivation in problem soils affected by extreme dearth of water, frost and extensive salinity have been suggested as future thrust

To Cite this article: Shahzad, S., M. Hussain, M. Arfan and H. Munir. 2022. Physiological and biochemical attributes of Agave sisalana resilient adaptation to climatic and spatio-temporal conditions. Pak. J. Bot., 54(1): DOI: http://dx.doi.org/10.30848/PJB2022-1(15)
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