Genotypic Variability and Physio-Biochemical Characteristics of Iranian Black Chickpea to Cold Stress

Habibpour, F. and Zeinali, H. and Amiri, R.M. and Nazari, M. (2012) Genotypic Variability and Physio-Biochemical Characteristics of Iranian Black Chickpea to Cold Stress. Romanian Agricultural Research, 28. pp. 1-10.

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The black chickpea (Cicer arietinum L.) is believed to be tolerant to environmental stresses, but no systematic study on its cold tolerance selection for breeding a cold-tolerant cultivar has been reported so far. In this study 28 black chickpea accessions were screened to identify genetic variability under field conditions and selected accessions, showing different performance, were compared for some physiological indexes, including indicators of injury (Electrolyte Leakage Index (ELI) and accumulation of malondialdehyde (MDA)) following cold-induced oxidative stress under short-term cold acclimation (STCA) and non-acclimation conditions. The cold-tolerant accession (4322) showed a lower membrane damage (ELI and MDA levels) compared to coldsensitive accessions. CAT activity with cooperation of other antioxidant enzymes like GPX and PPO could play a significant role in defence against H2O2, especially after STCA in accession 4322 under cold stress (CS). The results suggested that accession 4322, as an appropriate cold tolerant candidate, showed an early higher tolerance to cold-induced oxidative stress compared to other accessions, as inferred from antioxidative activities of enzymes and higher yield (YLD) in field conditions. Thus, our results showed that, along with field studies, ELI and MDA under short-term cold treatments can be used to evaluate cold tolerance of chickpea profitably, in a short time

Item Type: Article
Author Affiliation: University College of Agriculture and Natural Resources, University of Tehran, Karaj, Iran
Subjects: Crop Improvement
Plant Physiology and Biochemistry > Biochemistry
Divisions: Chickpea
Depositing User: Mr. SanatKumar Behera
Date Deposited: 23 Jul 2012 08:37
Last Modified: 23 Jul 2012 08:41
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