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In the pursuit of introducing new garlic cultivars (Allium sativum L.), an advanced evaluation of six promising selected clones (4/3, 5/3, 5/6, 7/6, 1/13, and 2/13) alongside three indigenous original landraces (Bahar Hamadan (3), Arak (6), and Toeein Hamedan (13)) was conducted in Hamedan conditions during the 2021-2022 crop year. Utilizing a RCBD design with four replications, the morphological traits of the plants, bulbs, and cloves of the aforementioned genetic materials were examined. While the difference in the number of plants per plot among the genetic materials was not statistically significant, significant disparities were observed in 36 other traits, notably bulb yield, dry matter yield, total pyruvate content, and allicin yield, at the 1% level. Five promising clones (4/3, 5/6, 7/6, 1/13, and 2/13) with 19184, 18343, 18971, 18323 and 18386 kg/ha respectively, while being placed in group A, had the highest yield. Also, clone 5/3 and the Arak, Bahar and Toeein landraces with yields of 17466, 17174, 16511 and 15417 kg/ha were placed in the next statistical groups. Based on the yield, the six promising clones had a 12.7% higher yield than the original landraces, and clone 4/3, which had the highest yield among the genotypes studied, also produced a 17.2% higher yield than the average yield of the original landraces. The allicin yield of the six clones studied was on average 21% higher than the average allicin yield of the original landraces.
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