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Oxidant related biochemical traits are significant indices in triticale grain yield under drought stress condition

Riasat, Mehrnaz, Kiani, Sholeh, Saed-Mouchehsi, Armin, Pessarakli, Mohamad
Journal of plant nutrition 2019 v.42 no.2 pp. 111-126
cultivars, genotype, grain yield, hydrogen peroxide, irrigation, malondialdehyde, oxidants, rain, screening, superoxide dismutase, triticale, water stress
Two separate experiments, one as drought stress conditions and the other one as the normal irrigation conditions based on randomized complete block design with three replications were implemented to examine 20 triticale (Triticoseclae wittamack X) genotypes of which 19 genotypes have recently been generated by crossing different parent lines and the other one was Javaniloo, a common cultivar. Based on the results of different statistical techniques and comparing relationships among traits for normal irrigation and stress condition, enzymatic antioxidant could be used as criteria for screening tolerant genotypes of triticale. On the other hand, it is pointed out that superoxide dismutase are the most important criteria to achieve higher tolerant genotypes through indirect selection. Furthermore, hydrogen peroxide and malondialdehyde content having high relationship with rain yield are also the different possible criteria for screening triticale genotypes for water stress conditions in which genotypes with lower content of these traits could be screened.