Variation among wheat (Triticum easativum L.) genotypes in response to the drought stress: I – selection approaches
By S. Grzesiak, N. Hordyńska, P. Szczyrek, M. Grzesiak, A. Noga, M. Szechyńska-Hebda. Journal of Plant Interactions, 2018
124 citations recorded by the source corpus.
ABSTRACT The agronomic and physiological traits, drought tolerance indexes, principal component analysis and Ward`s method were applied to assess the differences among 20 wheat genotypes in response to drought. Statistically significant correlation was observed for measured traits. Drought susceptibility index (DSI), stress tolerance index (STI) and stress index (SI) were most useful to identify genotypes differing in their response to drought. Utility of the indexes was confirmed by physiological markers of drought tolerance i.e. membrane injury and leaf water status. Variation of the genotypes in biomass and grain yield during drought stress was also verified by clustering methods. Finally, integration of physiological and statistical methods presented in this work, allows to both, indicate that tolerance to drought in wheat has a common genetic background, and select the most diverse genotypes. Based on the results, we recommend a tool for breeders, useful to select the genotypes resistant and sensitive to drought.
Subfields: Agronomy and Crop Science, Plant Science
View Paper: https://www.semanticscholar.org/paper/162b5486b5dc0d6c302857acce41187ed6d8d961
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Citations in the corpus
- Special issue in honour of Prof. Reto J. Strasser - Comparative analysis of drought stress response of maize genotypes using chlorophyll fluorescence measurements and leaf relative water content (2020, methodology): “Recently, Grzesiak et al. (2019) used drought tolerance indices in PCA and clustering analyses to assess the response of 20 wheat genotypes to drought.”
- Detecting Salt Tolerance in Doubled Haploid Wheat Lines (2019, background): “Testing the salt tolerance of genotypes in a laboratory setting, where plants are under controlled conditions in small-scale pots, can be a useful indicator, as there is a significant correlation between stress resistance observed in the field and stress resistance observed in the laboratory [32,35,”