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EFFECT OF ENHANCED UV-B RADIATION ON GERMINATION, SEEDLING GROWTH AND BIOCHEMICAL RESPONSES OF VIGNA MUNGO (L.) HEPPER

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dc.contributor.author SYED SHAHID SHAUKAT
dc.contributor.author MUHAMMAD AFZAL FAROOQ
dc.contributor.author MUHAMMAD FAHEEM SIDDIQUI
dc.contributor.author SAHAR ZAIDI
dc.date.accessioned 2023-01-04T09:06:35Z
dc.date.available 2023-01-04T09:06:35Z
dc.date.issued 2013-06-09
dc.identifier.citation Shaukat, S. S., Farooq, M. A., Siddiqui, M. F., & Zaidi, S. A. H. A. R. (2013). Effect of enhanced UV-B radiation on germination, seedling growth and biochemical responses of Vigna mungo (L.) Hepper. Pak. J. Bot, 45(3), 779-785. en_US
dc.identifier.issn 2070-3368
dc.identifier.uri http://142.54.178.187:9060/xmlui/handle/123456789/15487
dc.description.abstract The study focuses on the effect of supplemental UV-B radiation on germination, seedling growth, chlorophyll a and b contents, soluble phenols, anthocyanins, flavones contents, phenylalanine ammonia lyase (PAL) activity and tyrosine ammonia lyase (TAL) activity of mash-bean (Vigna mungo (L.) Hepper.). Even though the germination velocity was substantially increased, the final germination percentage remained significantly suppressed by UV-irradiance. Both root and shoot growth of the seedlings were markedly reduced by enhanced UV-B radiation. UV-B irradiation substantially decreased both chlorophylls a and b and the total amount of chlorophyll a plus b compared to controls. However, chlorophyll a/b ratio was generally elevated. Remarkable accumulation of total soluble phenols occurred in response to UV-B radiation. PAL activity increased markedly as a result of UV-stress in the beginning, subsequently, however, it declined, whereas, TAL activity consistently increased over the controls following UV-B irradiation up to 8 days of treatment. The levels of anthocyanins and flavones increased in treatments over the controls as they provide a protective mechanism to UV-B radiations. In general, the growth and physiological responses to UV-B radiation were more pronounced at greater exposure period. en_US
dc.language.iso en en_US
dc.publisher Karachi: Pakistan Botanical Society en_US
dc.title EFFECT OF ENHANCED UV-B RADIATION ON GERMINATION, SEEDLING GROWTH AND BIOCHEMICAL RESPONSES OF VIGNA MUNGO (L.) HEPPER en_US
dc.type Article en_US


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