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The growth and development of some members of the genus Hosta Tratt.

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В настоящей работе представлены результаты изучения адаптивного потенци- ала вида Hosta undulatа (контроль) и двух его форм – H. undulata var. univittata и H. undulata var. albomarginata, произрастающих в открытом грунте. Показано, что имея максимальные зна- чения общей площади листа и содержания фотосинтетических пигментов в течение практически всего вегетационного периода, H. undulata var. albomarginata не отличалась высокими показате- лями роста. Отличительной особенностью H. undulata var. univittata было наличие максимума накопления пигментов во II периоде, что в основном связано с заметным ростом диаметра куста. Стабильные показатели в течение периода наблюдений регистрировали у H. undulata. Результа- ты измерения ростовых процессов, а также отсутствие жизнеспособного семенного потомства у всех исследованных образцов позволило сделать предположение об их зависимости от метеоро- логических условий района произрастания. Стабильные показатели прироста и содержания фо- тосинтетических пигментов в течение всего периода вегетации H. undulata var. univittata указыва- ют на высокий адаптивный потенциал данной разновидности хосты и позволяют рекомендовать ее для массового городского озеленения. This paper presents the results of a study of the adaptive potential of Hosta undulata (control) and its two forms, H. undulata var. univittata and H. undulata var. albomarginata, growing on open ground. It was shown that, despite having the maximum values of total leaf area and photosynthetic pigment content during almost the entire growing season, H. undulata var. albomarginata did not show high growth rates. A distinctive feature of H. undulata var. univittata had a maximum accumulation of pigments in the II period, mainly due to a noticeable increase in the diameter of the bush. Stable indicators were recorded in H. undulata during the observation period. The results of measuring growth processes, as well as the absence of viable seed progeny in all the studied samples, allowed us to make an assumption about their dependence on the meteorological conditions of the growing area. Stable growth rates and content of photosynthetic pigments in H. undulata var. univittata throughout the growing season indicate the high adaptive potential of this variety of hosta, and allow us to recommend it for mass urban landscaping.
Title: The growth and development of some members of the genus Hosta Tratt.
Description:
В настоящей работе представлены результаты изучения адаптивного потенци- ала вида Hosta undulatа (контроль) и двух его форм – H.
undulata var.
univittata и H.
undulata var.
albomarginata, произрастающих в открытом грунте.
Показано, что имея максимальные зна- чения общей площади листа и содержания фотосинтетических пигментов в течение практически всего вегетационного периода, H.
undulata var.
albomarginata не отличалась высокими показате- лями роста.
Отличительной особенностью H.
undulata var.
univittata было наличие максимума накопления пигментов во II периоде, что в основном связано с заметным ростом диаметра куста.
Стабильные показатели в течение периода наблюдений регистрировали у H.
undulata.
Результа- ты измерения ростовых процессов, а также отсутствие жизнеспособного семенного потомства у всех исследованных образцов позволило сделать предположение об их зависимости от метеоро- логических условий района произрастания.
Стабильные показатели прироста и содержания фо- тосинтетических пигментов в течение всего периода вегетации H.
undulata var.
univittata указыва- ют на высокий адаптивный потенциал данной разновидности хосты и позволяют рекомендовать ее для массового городского озеленения.
This paper presents the results of a study of the adaptive potential of Hosta undulata (control) and its two forms, H.
undulata var.
univittata and H.
undulata var.
albomarginata, growing on open ground.
It was shown that, despite having the maximum values of total leaf area and photosynthetic pigment content during almost the entire growing season, H.
undulata var.
albomarginata did not show high growth rates.
A distinctive feature of H.
undulata var.
univittata had a maximum accumulation of pigments in the II period, mainly due to a noticeable increase in the diameter of the bush.
Stable indicators were recorded in H.
undulata during the observation period.
The results of measuring growth processes, as well as the absence of viable seed progeny in all the studied samples, allowed us to make an assumption about their dependence on the meteorological conditions of the growing area.
Stable growth rates and content of photosynthetic pigments in H.
undulata var.
univittata throughout the growing season indicate the high adaptive potential of this variety of hosta, and allow us to recommend it for mass urban landscaping.

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