Year 2024, Volume 70 Issue 3 (30.09.2024)

Year : 2024
Volume : 70
Issue : 3 (30.09.2024)
   
Authors : Alper Ahmet ÖZBEY, Nebi BİLİR
Title : SEEDLING MORPHOLOGY AND QUALITY IN CRIMEAN JUNIPER (Juniperus excelsa BIEB.)
Abstract : Junipers (Juniperus sp.) have 1.56 million ha natural distribution which of total 23.3 million ha Turkish forest area. However, 1.1 million ha (71%) of junipers and 9.6 million ha (41%) of Turkish forest area is unproductive. Seedling quality and morphology is one of the important tools in conversion of unproductive forest to productive forest. Seedling quality and morphology were investigated based on seedling height and root-collar diameter, and sturdiness index of 2+0 years containerized and bare-root seedlings of Crimean juniper (Juniperus excelsa Bieb.) grown at Forest Nursery from southern Türkiye. For the purpose, 150 seedlings were sampled randomly from each seedling type in a forest nursery to collect seedling height and root-collar diameter data. Sturdiness index was calculated by ratio between the height and diameter. Collected data was performed for comparison of the seedling types for the characteristics by one-way analysis of variance, and to be determined relations among the characteristics by correlation analysis. The seedlings were distributed to quality classes of Turkish Standard Institute and Sturdiness index. Studied bare-root seedlings (16.3 cm) showed higher height growth performances than containerized (14.5 cm) seedlings opposite to root-collar diameter (2.04 mm and 1.86 mm), while the seedlings showed large differences within seedling type for the characteristics. Averages of sturdiness index were 72.5 and 88.5 in containerized seedlings and bare-root seedlings, respectively. Seedling types indicated significant (p0.05) differences for the characteristics. Positive and significant (p0.05) phenotypic relations were estimated among the characteristics in seedling types. Distribution of seedlings to quality classes varied for the characteristics, classes and seedling type. Results of the study were discussed based on nursery practices and plantation forestry of the species.
For citation : Ozbey, A.A, Bilir, N. (2024). Seedling morphology and quality in Crimean juniper (Juniperus exceksa Bieb.). Agriculture and Forestry, 70 (3): 163-171. https://doi.org/10.17707/AgricultForest.70.3.11
Keywords : Afforestation, Diameter, Height, Nursery, Variation
   
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