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Физиология растений и генетика 2017, том 49, № 1, 15-24, doi: https://doi.org/10.15407/frg2017.01.015

Сортові особливості реутилізації азоту з вегетативних частин пагона пшениці за різного рівня мінерального  живлення

Кірізій Д.А., Рижикова П.Л.

  • Інститут фізіології рослин і генетики Національної академії наук України 03022 Київ, вул. Васильківська, 31/17

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

Физиология растений и генетика
2017, том 49, № 1, 15-24

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