نوع مقاله : مقاله پژوهشی
نویسندگان
1 مهندسی تولید و ژنتیک گیاهی، دانشکده کشاورزی و منابع طبیعی، دانشگاه محقق اردبیلی، اردبیل، ایران
2 دانشگاه محقق اردبیلی
3 عضو هیات علمی بخش تحقیقات زراعی و باغی، مرکز تحقیقات و آموزش کشاورزی و منابع طبیعی استان اردبیل (مغان)، سازمان تحقیقات، آموزش و
چکیده
کلیدواژه‌ها
موضوعات
عنوان مقاله [English]
نویسندگان [English]
Background and Objective: The purpose of this research is to investigate the ability of potato cultivars to withstand environmental challenges and evaluate their water use efficiency.
Materials and Methods: This research was carried out in 2023 in the potato research farm of Ardabil Agricultural Research Center, as split factorial in the form of a randomized complete block design in three replications. The studied factors included three levels of drought stress (0, 25 and 50% stress) as the main factor, two levels with and without weeds as second factor, and third factor included three potato varieties (Agria, Rona and Tekta).
Results: The results showed that Tekta and Agria varieties had the highest cover and height in flowering stage, respectively. In no drought stress, the Rona variety had the highest number of tubers per plant, on the contrary, in drought stress condition, the Agria variety had more tubers. In 50 stress conditions, weed competition reduced potato yield more than 2 times compared to no stress conditions. The results showed that the Agria cultivar had the highest WUE with 11.8 and 10.1 in the conditions of no competition and weed competition, respectively.
Conclusion: The results of this study showed that different potato cultivars have different tolerance to drought stress and the effect of weed competition on them is different under drought stress conditions. Therefore, the improvement and development of drought tolerant cultivars that have high competitiveness will an important role in providing food security.
کلیدواژه‌ها [English]
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