Morpho-Physiological and Genetic Diversity Analysis of Indian Wheat (Triticum Aestivum) Genotypes and their Evaluation in Response to Drought Stress

Abstract

Study of marpho-physiological and genetic diversity analysis in Indian bread wheat cultivar, a total of ten genotypes were collected. To evaluate the genotypes under drought stress the seeds of ten varieties were treated with Poly Ethylene Glycol (PEG) for inducing stress condition. In present study, morpho-physiological data were recorded at pre harvest stage and at post harvest stage along with Physiological characteristics. The study was performed under controlled as well as treatment condition. On the basis of marpho-physiological characteristics the V-110 genotype performed better as compared to other. On the other hand genotype HD-2133 showed much effect of artificially induced stress condition and performed below average. A collection of ten variety of bread wheat diversified through SSR primer. The SSR primer was given enough information with higher value of resolving power. These results confirmed the usefulness of SSR-PCR analysis to detect specific molecular markers for drought tolerant trait in wheat. The SSR based dendrogram grouped the 10 genotypes into two main clusters. Cluster analysis clearly showed that the genotypes V -23 and VWTH-08-07 showed the maximum genetic similarity and genotype HUW-213displayed minimum genetic similarity with HD-2133 and HUW-825. The range of genetic diversity values broadly indicates the degree of heterogeneity or homogeneity in different genotypes of the plant species. The marpho-physiological and genetic information obtained in this study might be useful in Agriculture.