Adaptation and growth of musk willow (Salix aegyptiaca L.) populations in the Sanandaj collection, Iran

Document Type : Research article

Author

Associate Prof., Research Division of Natural Resources, Kurdistan Agricultural and Natural Resources Research and Education Center (AREEO), Sanandaj, Iran

Abstract

Considering the important practical properties of musk willow (Salix aegyptiaca L.) as a multipurpose species, this research was carried out in order to evaluate its growth and survival percentage with 10 musk willow populations (from Kurdistan and West Azerbaijan provinces in Iran) in agricultural and natural resource research station of the Gerizah – Sanandaj (Kurdistan-Iran). The analysis was conducted in three replications based on the randomized complete blocks design (RCBD) during 2013-2018. The results showed significant difference (p ≤ 0.01) among musk willow populations for studied traits. The total mean of tree collar diameter (D0), tree height (TH) and crown diameter (CD) and the mean of CD/TH ratio of 7 years old plants were 6.5, 379.5, 418.6 cm, and 1.1, respectively. In addition, the mean of trees vitality degree was 3.7 (1-5) and the mean of survival percentage was ca. 77%. With exception of the tree height, all studied traits of Kurdistan group of populations were higher than those of West Azerbaijan group. However, their differences were significant (p ≤ 0.01) only for crown diameter, vitality degree and survival percentage. Therefore, the musk willow populations of the Kurdistan 6, Kurdistan 4 and Kurdistan 3 could be introduced as higher growth and adaptable with survival percentages of more than 80% for establishment of musk willow cultivation and its related industries in the Sanandaj (Kurdistan Province) and similar ecological conditions of Iran.

Keywords


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