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VARIATIONS IN ACCESSIONS OF SUNFLOWER AND SAFFLOWER UNDER STRESS CONDITION

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dc.contributor.author NUSRAT JABEEN
dc.contributor.author RAFIQ AHMAD
dc.date.accessioned 2023-01-10T03:56:23Z
dc.date.available 2023-01-10T03:56:23Z
dc.date.issued 2013-04-20
dc.identifier.citation Jabeen, N., & Ahmad, R. (2013). Variations in accessions of sunflower and safflower under stress condition. Pakistan Journal of Botany, 45(2), 383-389. en_US
dc.identifier.issn 2070-3368
dc.identifier.uri http://142.54.178.187:9060/xmlui/handle/123456789/15802
dc.description.abstract Two sunflower i.e., Helio & NuSun, and 2 safflower accessions i.e. Spiny & Non-Spiny differing in salt sensitivity, were examined for compatible solutes and some enzyme activities involved in seed germination i.e. α-amylase, β-amylase and α-glucosidase, under control and different levels of sea salt concentrations i.e. 0, 0.2, 0.4, 0.6 and 0.8% having ECiw = 0.5, 3.4, 6.1, 8.6 and 10.8 dS/m respectively. The inhibitory effects of salts differed among all the accessions tested. In Helio and Non-Spiny cultivars the increase in salt concentration reduced germination percentage and lower relative water content, and also decreased the endogenous levels of proline, total soluble sugars and activities of the main enzymes involved in the germination process. In contrast, seeds of NuSun and Spiny cultivars accumulated higher proline and total soluble sugar concentrations in response to salt stress, which improved their water status and the enzyme activities involved in the process of germination. Differences in response of the different accessions of sunflower and safflower to salt stress may be due to the accumulation of compatible solutes in their seeds en_US
dc.language.iso en en_US
dc.publisher Karachi: Pakistan Botanical Society, University of Karachi en_US
dc.title VARIATIONS IN ACCESSIONS OF SUNFLOWER AND SAFFLOWER UNDER STRESS CONDITION en_US
dc.type Article en_US


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