نوع مقاله : مقاله پژوهشی
نویسندگان
1 گروه علوم باغبانی و فضای سبز دانشگاه تهران
2 مسئول گروه علوم باغبانی، دانشکده کشاورزی، دانشکدگان کشاورزی و منابع طبیعی دانشگاه تهران، کرج. ایران.
3 گروه علوم باغبانی، دانشکده کشاورزی، دانشکدگان کشاورزی و منابع طبیعی دانشگاه تهران، کرج. ایران.
چکیده
کلیدواژه‌ها
موضوعات
عنوان مقاله [English]
نویسندگان [English]
Kale (Brassica oleracea var. Sabelica) is one of the important valuable vegetables due to its short growth period, various uses, and desirable metabolic and nutritional profile. In the present study, the effect of different nutrient solutions and different levels of selenium foliar application on the growth and absorption of mineral elements of kale plants was studied. The experiment was carried out factorially based on a completely randomized design in three replications. The treatments included three different nutrient solutions (with different levels of macroelements) and four levels (zero, 5, 10 and 15 mg/l of selenate) of selenium. The highest leaves fresh and dry matter percentage leaves, number fresh and dry matter percentage of the stem and length and diameter of the stem were obtained in the plants grown in nutrient solution number three (with calcium and nitrate higher than solutions one and two) and sprayed with selenium was 10 mg/l. In terms of the amount of mineral elements of the tissue, the highest amount of nitrogen, phosphorus, potassium and calcium was obtained in the plants grown in the nutrient solution number three and the level of 10 mg/l of selenium. The results showed that selenium had a positive role in nitrate reduction and the lowest amount of nitrate was obtained under foliar application of 10 mg/l. Additionaly, the highest amount of tissue selenium was also obtained in nutrient solutions number three and a level of 15 mg/l of selenium foliar application.
کلیدواژه‌ها [English]
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