Effect of Sowing Type and Seedbed Density on The Morphological Characteristics of Narrow-Leaved Ash Seedlings in Different Nurseries
Öz
Aim of study: The aim of this study was to investigate the effects of sowing type and seedbed density on the morphological characteristics of narrow-leaved ash (NLA) seedlings and to determine the maximum number of seedlings of the desired quality (RCD ≥ 8 mm, HS ≥70 cm) in two nurseries.
Area of study: This work was carried out in İzmit and Hendek (Turkey) state nurseries.
Material and methods: NLA seeds were planted in nurseries using two sowing types (straight line and square grid) and four different seedbed densities (SD: 30, 48, 99 seedlings m-2 and control). After one year of growth, height, diameter, number of roots, stem and root weights and stem-root ratio of the NLA seedlings were measured.
Main results: The seedling height and number of fine roots were positively influenced by sowing type in the İzmit seedlings, whereas sowing type did not affect seedling morphology in Hendek. The best morphological characteristics were found at SD30 for the seedlings in both nurseries. Only 5% of the Hendek seedlings were of desired quality, while 65% were so determined in the İzmit seedlings.
Highlights: As a result, the recommended planting of 1+0-year-old bare-rooted NLA seedlings to be used in the regeneration of NLA forests would be at 30 m-2 SD in the İzmit forest nursery.
Anahtar Kelimeler
Seedbed Density, Sowing Type, Fraxinus angustifolia, Hendek, İzmit
Kaynakça
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