Hamed Hassanzadeh Khankahdani; Mahmoud Bagheri; Sibgol Khoshkam
Abstract
Eggplant has high variation in the world and there are many landraces of the eggplant in Iran. In the previous studies, five landraces of Minab’s eggplant have been collected from the main production regions with the aim to select the pure lines, consequently 15 superior genotypes were selected ...
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Eggplant has high variation in the world and there are many landraces of the eggplant in Iran. In the previous studies, five landraces of Minab’s eggplant have been collected from the main production regions with the aim to select the pure lines, consequently 15 superior genotypes were selected from these landraces and their stability and compatibility were analyzed. In the present study, 15 eggplant genotypes together with two superior mother landraces were studied for the two successive years in the three regions of Iran including Minab, Karaj, and Jiroft. Based on the results of the means comparison of yield in the studied lines in each region from average of two years, GHE12 line in Minab region, SA13 line in Jiroft region, and AM4, SA15, and SA5 lines in Karaj region had acceptable yield than the other studied lines. According to the results of general compatibility and stability analysis, the three genotypes of Y7, AM7 and SA15 were recognized as the most stable genotypes with having the least interaction; therefore, they categorized as the first ranking of stability. According to the results of special compatibility and stability analysis, AM7, Y7 and GHE12 lines for Minab region; AM5 and SA5 lines for Jiroft region and SA5 and AM4 lines for the Karaj region can be recommended.
Atefeh Gholizadegan; َAlireza Seifi
Abstract
Fusarium wilt is one of the most destructive diseases of muskmelon (Cucumis melo L.), which is an economically important disease worldwide causes yield losses in muskmelon growing areas. One of the most effective controlling measures to prevent Fusarium wilt is through host resistance by using resistance ...
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Fusarium wilt is one of the most destructive diseases of muskmelon (Cucumis melo L.), which is an economically important disease worldwide causes yield losses in muskmelon growing areas. One of the most effective controlling measures to prevent Fusarium wilt is through host resistance by using resistance genes. We used developed molecular markers for Fom-2 gene, which confers resistance to race 1 of Fusarium in muskmelon, to screen muskmelon landraces in Khorasane-e-Razavi, Iran. After validation of the markers on a differential set of resistant and susceptible lines, we identified STS312 marker as the polymorphic and easy-to-score marker. Then we used STS312 to genotype plants from five different landraces. Our results suggest that resistance allele of Fom-2 gene is present in two landraces: Eyvankey and Mashhadi. These landraces can be used by muskmelon breeders to enhance resistance to Fusarium wilt in muskmelon.
