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Genotypic and environmental variability of the total content of tocopherols in the seeds of inbred sunflower lines | ||
| Caspian Journal of Environmental Sciences | ||
| دوره 19، شماره 5، اسفند 2021، صفحه 871-876 اصل مقاله (735.93 K) | ||
| نوع مقاله: Research Paper | ||
| شناسه دیجیتال (DOI): 10.22124/cjes.2021.5246 | ||
| نویسندگان | ||
| Nadezhda Nikolaevna Gordovskaia* ؛ Tatiana Mikhailovna Peretiagina؛ Tatiana Aleksandrovna Kovalenko؛ Yakov Nikolaevich Demurin | ||
| V.S. Pustovoit All-Russian Research Institute of Oil Crops, 17 Filatova street, Krasnodar, 350038, Russia | ||
| چکیده | ||
| Breeding for high total content of tocopherols (vitamin E) in sunflower seed oil involves studying the genetics of this trait. Twenty-nine inbred lines of sunflower with different total tocopherol content (TTC) were selected from 60 samples of the original material and studied at VNIIMK, Krasnodar, in 2016-2019. TTC was determined in an average sample from a head of shelled seeds by direct hexane extraction and further measurement of the optical density of the colored solution on a spectrophotometer. Both the genotype and the growing conditions influence the TTC in the seeds. The average range of variation over four years was from 302 to 605 mg kg-1. The largest differences, 2.6 times, between genotypes were found in 2018 with a range of variability from 258 to 667 mg kg-1. Significant differences were found between the average values of 360 mg kg-1 in 2017 and 432 mg kg-1 in 2019. The genotype and the year of growing have the greatest influence on the TTC, measured as 65% and 8%, respectively, and the genotype-year interaction accounts for 14% of the effect. The TTC correlation coefficient in the parent-offspring series was 0.65–0.85, and the heritability coefficient in the studied lines was 42–72%. The data on the valuable genetic control of TTC in seeds can help predict the effectiveness of breeding to improve this trait. | ||
| کلیدواژه‌ها | ||
| Vitamin E؛ Inheritance؛ Genotype؛ Oil؛ Seeds | ||
| مراجع | ||
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