Dynamics of the Foliar Pigments Content in Some Bean Genotypes, from North-East Romania, under Salt Stress
Abstract
Phaseolus vulgaris L. is a salt-sensitive species. For this reason, the purpose of the face work was to determine the effect of excess NaCl on the content of the chlorophyll pigments as an indicator of salt stress tolerance. Therefore, in the present study, of the influence of saline solutions of 100 mM and 200 mM NaCl was studied on the content of assimilatory pigments, to 7 local populations of common beans, collected from areas with saline soils, from Nord-East of Romania and grown under greenhouse conditions, at the pots. The experiment is part of a broader research, and the determination of pigment content is only one stage of this research, because and other physiological and biochemical parameters are analyzed. 15 days after treatment the content of chlorophyll a, chlorophyll b and carotenoids pigments showed higher values compared with analyzes performed after 30 days. The overall objective of the research is to contribute to a better understanding of the physiological mechanisms involved in the saline stress tolerance of Phaseolus vulgaris L., identification of local populations of salinity-tolerant beans and their use in breeding programs of this species. As novelty, in the current study, new genotypes were found of bean, from Nord-East of Romania, tolerant to this factor.Authors who publish with this journal agree to the following terms:
a) Authors retain copyright and grant the journal right of first publication with the work simultaneously licensed under a Creative Commons Attribution License that allows others to share the work with an acknowledgement of the work's authorship and initial publication in this journal.
b) Authors are able to enter into separate, additional contractual arrangements for the non-exclusive distribution of the journal's published version of the work (e.g., post it to an institutional repository or publish it in a book), with an acknowledgement of its initial publication in this journal.
c) Authors are permitted and encouraged to post their work online (e.g., in institutional repositories or on their website) prior to and during the submission process, as it can lead to productive exchanges, as well as earlier and greater citation of published work (See The Effect of Open Access).