Published in Scientific Papers. Series B, Horticulture, Vol. LXIII, Issue 2
Written by George Nicolae CAZAN, Sorina PETRA, Diana VÂȘCĂ-ZAMFIR, Florin TOMA
The quality and the type of the planting material, the behavior in different conditions of culture, growth and blooming, as well as the appearance of the plant are important elements in choosing the variety and the cultivar or peony for plating in the landscape place. Also, the manner, appearance and duration of blooming, the earliness of the blooming, the aspect of the flower and the duration of the flowers on the plant or in vases are elements that render some qualities in the choice of peony varieties used in parks and gardens. In this paper, we present the results of the research on the influence of the age and size or the plants on the growth and blooming of some cultivars of herbaceous peony. The age of the plants had a major influence on the growth and blooming both in plants over 25 years and in young plants of over 2 years from planting. Likewise, the size of the plants had a different major influence on the growth and blooming both in older plants as well as in younger ones. The age and the size of the studied plants had a major influence also on the potential of reproduction of each studied cultivar. It analyzed the particularities of growth and blooming of the reproduction potential of each studied cultivar. The studied cultivars came from the collection of the University, as well as from the personal collection, having different ages such as 2 years, 4-5 years, 7 years, 8 years and over 25 years as well as various sizes of the ballot of the roots of herbaceous peony, i.e. 15-62 cm. age, breeding, flowering, growth, herbaceous peony
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