Растения озимой пшеницы трех сортов (Фаворитка, Смуглянка, Мироновская 808) выращивали в вегетационном опыте на двух фонах минерального питания: N160P160K160 и N32P32K32 мг/кг почвы. В фазы цветения и полной спелости определяли массу сухого вещества органов главного побега, содержание в нем азота, элементы зерновой продуктивности, содержание азота в зерне. По полученным данным рассчитаны коэффициенты реутилизации азота в период налива зерна для целого побега и отдельных его частей. Показано, что у растений озимой пшеницы новых высокоинтенсивных сортов Фаворитка и Смуглянка эффективность реутилизации азота из вегетативных частей побега в зерно выше, чем у сорта Мироновская 808. При пониженном уровне минерального питания коэффициенты реутилизации были меньше, однако новые сорта сохраняли преимущество по этому показателю. При высоком фоне минерального питания растения сортов Фаворитка и Смуглянка лучше использовали резервный азот стебля, чем растения сорта Мироновская 808.
Ключові слова: Triticum aestivum L., wheat, mineral nutrition, nitrogen, remobilization
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