Browsing by Author "Fidan, E."

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Investigation of Responses of Some Bean (Phaseolus Vulgaris L.) Genotypes To Different Levels of Salt Stress
(Centenary University, 2017) Fidan, E.; Ekincialp, A.
In this study, it was aimed to investigate the responses of 20 different bean genotypes to different levels of salt stress. In the study, the reactions of 20 different bean genotypes at 25 mM and 50 mM NaCI were investigated. Salt application was carried out for 4 consecutive days with irrigation water. At the end of the study, 0-5 scale, number of leaves, shoot diameter, shoot length, shoot dry and fresh weights and nutrient elements (Na, Ca and K) in the bean genotypes were determined in order to determine the tolerance to salinity. According to the results obtained at the end of the study, it was determined that there were significant differences in tolerance between the genotypes. According to the scale 0-5, it was found that there was significant developmental retardation especially in the group receiving 50 mM salt dose. In parallel with the increase of applied salt concentration, the shoot size, leaf number, shoot diameter, shoot age weight, K, K / Na and Ca / Na ratio decreased; Ca and Na content were increased. © 2017, Centenary University. All rights reserved.
New Record in Summer Squash and Infestation of Branched Broomrape (Phelipanche Ramosa (L.) Pomel) in Vegetable Areas in Van/Türkiye
(Centenary University, 2024) Yergin Özkan, R.; Tepe, I.; Fidan, E.
The increasing vegetable production in Van/Türkiye province and its districts, where the study was carried out. The most significant of these issues is the parasitic and highly invasive broomrapes. A survey was conducted in August-October 2019 in order to determine the extent of the broomrape problem in the areas of vegetables. In this study, the type of broomrape found in vegetable areas was identified first, then the infestation rates and the average number of shoots in each plant were determined. The results concluded that the branched broomrape [Phelipanche ramosa (L.) Pomel] was found as a single species in all areas. It was also detected that branched broomrape was infested with tomato, eggplant, cucumber, and summer squash; with related densities of 4.2, 0.4, 0.26, and 0.78 %, on average, respectively. No infestation was encountered in pepper. As a result of the study, this infestation detected in summer squash is the first record in terms of the host series of branched broomrape. Although less infestation was seen in other areas, it is predicted that the branched broomrape could be spread rapidly to non-infested areas over time due to its character. © 2024, Centenary University. All rights reserved.