Results regarding drought and heat tolerance of some Romanian winter wheat genotypes obtained
at NARDI Fundulea

Gabriela Şerban, Cristina-Mihaela Marinciu, Cătălin Lazăr, Matilda Ciucă, Daniel Cristina

NARDI Fundulea

Keywords: wheat, drought, heat, tolerance, allele

Abstract: Heat and drought episodes are becoming more frequent during the grain filling period, which is one of the most important stages in wheat development for high yield and baking quality.“The rate of reduction in grain weight” it's often used as an indicator of how well a plant is coping with stress, a smaller reduction in seed weight generally indicates better tolerance to the stressor. 
81 contrasting winter wheat genotypes were sown in two repetitions (control and treated), with two rows from each genotype for drought test, and another set of 57 wheat genotypes was exposed to high temperatures under controlled conditions in laboratory, at seedling stage to assess their potential for tolerance to high temperatures.
Among the genotypes tested for drought tolerance FDL FAGUR, 17054G1-07, ABUND-1A, 19148G0-2, 16131G1-1, FDL EVIDENT, VOINIC, FDL ABUND, 20099GP1, 17217G1-08, IZVOR, 17051G1-05, KUKRI, Simnic 1412, 19290G0-2, ABUND-1R, 19284G0-2 and  FDL EMISAR show above-average tolerance.
More than 15 winter wheat genotypes stood out after performing the heat stress tolerance test out of the 56 analyzed. KASP (Kompetitive Allele Specific PCR) technique show that Drysdale, FDL FAGUR, FDL EVIDENT, and 17217G1-08 confirm the presence of genes associated with resistance to drought and heat.