Germination and Early Growth Performances of Mung Bean (Vigna radiata (L.) Wilczek) Genotypes Under Salinity Stress

Authors : Berk BENLİOĞLU, Uğur ÖZKAN

Pages : 318-328

Doi:10.33462/jotaf.677216

View : 29 | Download : 14

Publication Date : 2020-09-29

Article Type : Research Paper

Abstract :Salinity is the abiotic stress factor that most restricts agricultural production after drought. In this study, mung beans insert ignore into journalissuearticles values(Vigna radiata insert ignore into journalissuearticles values(L.); Wilczek); genotypes were analyzed the resistance performance to salinity stress in germination stage and early seedling stage. In accordance with this purpose, 17 mung bean genotypes were used in the study. Genotypes used in the study were treated with distilled water insert ignore into journalissuearticles values(0); and 2 different salt doses insert ignore into journalissuearticles values(4 and 8 mmhos cm-1 NaCl); as the control group. Petri dishes were allowed to stay at room temperature insert ignore into journalissuearticles values(25 ° C); for 9 days, and salt solution was added when required. The data obtained from the study, were obtained on the average of the measurements made on the 9th day and then analyzed. Germination power, root length, shoot length, fresh weight and dry weight were determined as the analyzed parameters in the study. Increasing NaCl doses generally affected all parameters negatively. According to the analysis of variance with the results obtained, the genotypic effect was found to be statistically significant in all parameters, which was analyzed in this study. Stress dose was found to be statistically significant in all parameters except the dry weight parameter. In addition to this, genotype × stress dose interaction was determined to be statistically significant in germination power, root length and shoot length parameters. Genotypes, which were numbered No.20 and No.24, had maximum results in statistically important parameters such as germination power insert ignore into journalissuearticles values(97.00-94.11%);, root length insert ignore into journalissuearticles values(1.557-1.563 cm); and shoot length insert ignore into journalissuearticles values(2.033-1.793 cm); under applied highest salt dose. As a result of this, No.20 and No.24 genotypes were determined to be the more tolerant to salt stress than other genotypes used in the study. As a conclusion, it is suggested that No.20 and No.24 genotypes can be used as parental plants in the breeding of new varieties tolerant to salinity in the future.
Keywords : Vigna radiata L, Wilczek, Abiotic stress, NaCl, Germination rate, Early seedling