Germination profiling of lentil genotypes subjected to salinity stress

Plant Biology
C FotiO I Pavli

Abstract

Salinity is one of the most severe environmental stresses, negatively affecting productivity of salt-sensitive crop species. Given that germination is the most critical phase in the plant life cycle, the present study aimed to determine seed germination potential and associated traits under salt stress conditions as a simple approach to identify salt-tolerant lentil genotypes. The genetic material consisted of six lentil genotypes whose adaptation to various agroclimatic conditions is not well elucidated. Salinity stress was applied by addition of NaCl at three different levels of stress, while non-stressed plants were included as controls. Evaluation of tolerance was performed on the basis of germination percentage, seed water absorbance, root and shoot length, seedling water content, seedling vigour index and number of seedlings with an abnormal phenotype. Overall, our findings revealed that salinity stress substantially affects all traits associated with germination and early seedling growth, with the effect of salinity being dependent on the level of stress applied. It is noteworthy, however, that genotypes responded differently to the varying salinity levels. In this context, Samos proved the most salt-tolerant genotype, i...Continue Reading

References

Sep 12, 2002·Annual Review of Plant Biology·Jian-Kang Zhu
Mar 12, 2004·Annual Review of Plant Physiology and Plant Molecular Biology·Paul M. HasegawaHans J. Bohnert
Dec 14, 2004·Ecotoxicology and Environmental Safety·Asish Kumar Parida, Anath Bandhu Das

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