نوع مقاله : مقاله پژوهشی
نویسندگان
1 مرکز تحقیقات و آموزش کشاورزی و منابع طبیعی آذربایجان شرقی
2 مؤسسه تحقیقات اصلاح و تهیه نهال و بذر، سازمان تحقیقات، آموزش و ترویج کشاورزی
3 محقق مرکز تحقیقات و آموزش کشاورزی و منابع طبیعی استان آذربایجان شرقی
4 محقق مرکز تحقیقات و آموزش کشاورزی استان آذربایجان شرقی
چکیده
کلیدواژه‌ها
موضوعات
عنوان مقاله [English]
نویسندگان [English]
Background & Objective: The research was carried out to evaluate the cold tolerance, seed and oil yields of promising safflower genotypes during different sowing dates in the marginal areas of the Tabriz Plain.
Materials & Methods: The experiment was carried out as a split plot based on a randomized complete block design with three replications during 2023-2024 at the East Azarbaijan Agricultural and Natural Resources Research and Education Center. The main factor was the planting date (5, 15 and 25 September and 5 October). The promising safflower genotypes were used as sub plot (1-37, 2-37, Mexico14, Mexico295, and Golemehr).
Results: The effects of planting date and genotype on plant height, number of seeds per capitulum, seed and oil yields were significant. The interaction effect of studied factors on the cold damage percentage, main stem diameter, capitula per plant and harvest index were significant. The highest seed and oil yields were obtained from 5 and 15 September planting dates. Among the studied genotypes, Mexico14, Mexico295, and Golemehr had higher seed and oil yields, respectively. Among the studied traits, plant height, main stem diameter, number of capitula per plant and number of seeds per capitulum indicated positive and significant correlation with seed yield.
Conclusion: It seems that cultivation of Mexico14, Mexico295, and Golemehr genotypes during 15th to 25th of September in the marginal areas of cold climate of Tabriz plain, by preventing cold damages can develop the safflower cultivation in the marginal areas of Tabriz plain.
کلیدواژه‌ها [English]
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