Dormancy, ABA content and sensitivity of a barley mutant to ABA application during seed development and after ripening
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منابع مشابه
Dormancy, ABA content and sensitivity of a barley mutant to ABA application during seed development and after ripening.
Assessment of dormancy inception, maintenance and release was studied for artificially dried immature seeds harvested throughout seed development in the barley cv. Triumph and its mutant line TL43. Each was grown in Spain and Scotland under low and high dormancy inducing conditions, respectively. Both TL43 and Triumph followed a similar pattern of release from dormancy across the seasons, altho...
متن کاملDormancy, ABA content and sensitivity to exogenous ABA application of a barley mutant during seed development and after ripening
I. Romagosa, D. Prada, M.A. Moralejo, A. Sopena, P. Muñoz, A.M. Casas, J.S. Swanston 3 and J.L. Molina-Cano 1 Centre UdL-IRTA, Av. Alcalde Rovira Roure 177, 25178 Lleida, Spain. 2 Estación Experimental de Aula Dei, CSIC, P.O.Box 202, 50080 Zaragoza, Spain 3 Scottish Crop Research Institute, Invergowrie, Dundee DD2 5DA, UK * To whom correspondence should be addressed: Fax: +34 973 702502. E-mail...
متن کاملABA biosynthesis and degradation contributing to ABA homeostasis during barley seed development under control and terminal drought-stress conditions.
Drought is one of the most severe environmental stress factors limiting crop yield especially when occurring during anthesis and seed filling. This terminal drought is characterized by an excess production of the phytohormone abscisic acid (ABA) which plays an important role during seed development and dormancy. All the genes putatively involved in ABA biosynthesis and inactivation in barley we...
متن کاملa study of seed dormancy and dormancy breaking factors during after-ripening period of barley genotypes (hordeum vulgare l.)
to study seed dormancy and the after-ripening period in barley genotypes (57 dutch genotypes and two iranian cultivars (gorgan and valfair)), an experiment of randomized complete block design (two replications) was conducted at the research farm of collage of agriculture and natural resources, university of tehran in 2004-2005. in the growing stage of zgs92, panicle was collected. the percentag...
متن کاملHypoxia interferes with ABA metabolism and increases ABA sensitivity in embryos of dormant barley grains.
Two mechanisms have been suggested as being responsible for dormancy in barley grain: (i) ABA in the embryo, and (ii) limitation of oxygen supply to the embryo by oxygen fixation as a result of the oxidation of phenolic compounds in the glumellae. The aim of the present work was to investigate whether hypoxia imposed by the glumellae interferes with ABA metabolism in the embryo, thus resulting ...
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ژورنال
عنوان ژورنال: Journal of Experimental Botany
سال: 2001
ISSN: 1460-2431,0022-0957
DOI: 10.1093/jexbot/52.360.1499