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HEAT-INDUCED REGULATION OF ANTIOXIDANT DEFENSE SYSTEM AND NUTRIENT ACCUMULATION IN HEXAPLOID BREAD WHEAT (TRITICUM AESTIVUM L.)

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dc.contributor.author ZIA, MUHAMMAD AZHAR
dc.contributor.author ASHRAF, MUHAMMAD
dc.contributor.author AKRAM, NUDRAT AISHA
dc.contributor.author HUSSAIN, MUJTABA
dc.date.accessioned 2022-12-05T06:12:18Z
dc.date.available 2022-12-05T06:12:18Z
dc.date.issued 2014-06-26
dc.identifier.citation Zia, M. A., Muhammad, A., Akram, N. A., & Mujtaba, H. (2014). Heat-induced regulation of antioxidant defense system and nutrient accumulation in hexaploid bread wheat (Triticum aestivum L.). Pakistan Journal of Botany, 46(3), 957-971. en_US
dc.identifier.issn 2070-3368
dc.identifier.uri http://142.54.178.187:9060/xmlui/handle/123456789/14629
dc.description.abstract Ten cultivars (five registered S-24, Inqlab-91, Saher-2006, Fsd-2008, and Lasani, and five candidate cultivars P.B-18, M.P-65, S.H-20, AARI-10, and G.A-20) of spring wheat (Triticum aestivum L.) were examined for high temperature stress tolerance. Plants were grown in soil filled pots in the Botanical Garden of the Department of Botany University of Agriculture Faisalabad, Pakistan. Three different temperature regimes (30, 40 and 50°C) were applied at two different growth stages (tillering and boot) for three temperature durations 30, 60 and 90 min in a growth chamber. The leaf and root samples were collected after two weeks of temperature treatment and then analyzed for enzymatic and non-enzymatic antioxidants as well as inorganic nutrients (N, P, K+ , Ca2+). At the end, data obtained were statistically analyzed to distinguish heat tolerant from non-tolerant wheat cultivars. After appraisal of growth, antioxidant defense system and uptake of nutrients it was found that cvs. S-24, Inqlab-91, Saher-2006, Fsd-2008, Lasani and G.A-20 exhibited better thermotolerance capabilities than the other wheat cultivars (P.B-18, M.P-65, S.H-20, AARI-10). Among the thermo-tolerant wheat cultivars, G.A-20 and Lasani were superior in maintaining shoot fresh weights and shoot length, high antioxidant activities and better nutrient uptake at both tillering and boot stages. The response of all cultivars to heat stress applied at the tillering stage or boot stage was almost the same. en_US
dc.language.iso en en_US
dc.publisher Karachi: Pakistan Journal of Botany, botanical garden, university of karachi en_US
dc.title HEAT-INDUCED REGULATION OF ANTIOXIDANT DEFENSE SYSTEM AND NUTRIENT ACCUMULATION IN HEXAPLOID BREAD WHEAT (TRITICUM AESTIVUM L.) en_US
dc.type Article en_US


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