Двухротационное выращивание контейнерных сеянцев Pinus sylvestris L. в условиях короткого вегетационного периода в высоких широтах. С. 50-65

УДК

582.475:630*329:581.143.28

DOI:

10.37482/0536-1036-2024-6-50-65

Аннотация

Качество лесных культур существенно зависит от характеристик посадочного материала. Для получения качественных сеянцев хвойных пород используется и оптимизируется процесс контейнерного выращивания, внедряется его двухротационый режим. Целью исследования было проведение сравнительного анализа 1-летних контейнерных сеянцев Pinus sylvestris L. по морфометрическим параметрам при двухротационном режиме выращивания в условиях короткого вегетационного периода в высоких широтах. Эксперимент проводили в лесном питомнике на юге Республики Карелии. Продолжительность для варианта 1-й ротации – 146 дней, 2-й – 91 день, для контрольного – 132 дня. Определяли параметры сеянцев: высоту, длины корня и почки, диаметр у корневой шейки, сухую массу всего сеянца, его надземной части, корня, хвои. Оценивали интегральные показатели качества: соотношение сухой массы надземной и подземной частей; коэффициент выносливости, равный отношению высоты сеянца к его диаметру у корневой шейки, а также индекс качества Диксона. Самые низкие массы сеянцев выявлены в варианте 2-й ротации. Разница средних коэффициентов выносливости и индексов качества Диксона между всеми вариантами была статистически значимой на уровне р < 0,05. Соотношение сухой массы надземной и подземной частей оказалось самым низким у сеянцев 1-й ротации. Высокие коэффициенты корреляции между массой сеянца и диаметром корневой шейки для всех вариантов подтверждают значимость последнего показателя. Результаты свидетельствуют о необходимости корректировки временного режима и использования дополнительных агроприемов для получения качественного посадочного материала.

Сведения об авторах

Е.В. Робонен¹, науч. сотр.; ResearcherID: AAD-1958-2019, ORCID: https://orcid.org/0000-0001-7926-8672
Н.П. Чернобровкина^1*, д-р биол. наук, доц., вед. науч. сотр.; ResearcherID: K-6120-2018, ORCID: https://orcid.org/0000-0002-9716-003X
Б.В. Раевский¹, д-р с.-х. наук, доц., вед. науч. сотр.; ResearcherID: K-6424-2018, ORCID: https://orcid.org/0000-0002-1315-8937
М.И. Зайцева^2,3, канд. техн. наук, доц.; ResearcherID: P-2238-2015, ORCID: https://orcid.org/0000-0003-4209-2815
К.Г. Нелаева¹, аспирант, мл. науч. сотр.; ResearcherID: GYJ-7223-2022, ORCID: https://orcid.org/0000-0002-3283-4451
¹Институт леса Карельского научного центра РАН, ул. Пушкинская, д. 11, г. Петрозаводск, Россия, 185910; er51@bk.ru, chernobrovkina50@bk.ru*, borisraevsky@gmail.com, nelaevakg@krc.karelia.ru
²Петрозаводский государственный университет, просп. Ленина, д. 33, г. Петрозаводск, Россия, 185910; 2003bk@bk.ru
³Мурманский государственный технический университет, ул. Спортивная, д. 13, г. Мурманск, Россия, 183010; 2003bk@bk.ru

Ключевые слова

Pinus sylvestris L., качество сеянцев, морфологические признаки, индекс качества, DQI, лесной питомник, двухротационное выращивание

Для цитирования

Robonen E.V., Chernobrovkina N.P., Raevsky B.V., Zaitseva M.I., Nelaeva K.G. Double-Cropping of Pinus sylvestris L. Containerized Seedlings under Short Growing Season Conditions at High Latitudes // Изв. вузов. Лесн. журн. 2024. № 6. С. 50–65. https://doi.org/10.37482/0536-1036-2024-6-50-65

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