International Scientific Journal on Reforestation, Afforestation and Tree Reproduction
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Issue 21, 2026

Online ISSN: 2466-4367

, Issue 21, (2026)

Published: 22.01.2026.

Open Access

This Special Issue of Reforesta, International Practices for Regenerating and Restoring Forest Trees by Seeding, brings together regional practice and research from North America, South America, Europe, Asia, and Oceania on using broadcast and direct seeding to create forest cover. It presents a significant range of seeding activities inclusive of species, forests, sites, and climates. Seeding has regained interest because of its scalability and cost-effectiveness, particularly for remote or inaccessible areas, sites with low productivity where planting seedling costs are prohibitive, or when aiming for a more natural forest structure. Technological innovations, particularly in seed treatments, automation, and precision seeding improve success of large-scale seed dispersal.

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01.12.2021.

Research paper

Growth performances of seed sources in a progeny trial of Pinus brutia Ten.
Progeny trial is a scientific plantation established for different forestry purposes such as selection and establishment of seed sources. Tree height and diameter at breast height were examined in a 23-year-old progeny trial established by seedlings of five seed orchard populations and five seed stand populations which were mother/base populations of the orchards in Turkish red pine (Pinus brutia Ten.) to compare the seed sources for the traits in this study. Trees of seed orchard populations showed higher growth performances than that of seed stand populations for the traits. Most of the seed stand populations had higher tree height than their seed orchard populations opposite to diameter at breast height. While seed sources were similar (p>0.05), populations showed significant (p<0.05) differences for both traits according to results of analyses of variance. Tree height was more homogenous than diameter at breast based on Duncan’s multiple range tests and coefficients of variations. Positive and significant correlation (p<0.05) was found between the traits in both seed stand populations and seed orchard populations.

Nebi Bilir, Alper Ahmet Ozbey

01.12.2019.

Research paper

Effect of using harvesting residues as a nursery media on seedling weight in Brutian pine (Pinus brutia Ten.)
Effects of harvesting residues (needle, bark and branch) on fresh and dry weights of two-year bare root seedlings originated from a seed stand and a seed orchard were examined in Brutian pine (Pinus brutia Ten.) to contribute nursery practices of the species and to estimate utilization possibility of the residues. Averages of seedling fresh and dry weights were 9.24 g and 3.36 g, respectively in polled treatments and origins. Results of analysis of variance showed significant differences (p≤0.05) among the treatments and between seed sources for the fresh and dry weights. Total averages of water content were 61.20% in root, 64.69% in stem and 63.75% in fresh weight of full seedling. Seed orchard seedlings had higher water content in root, stem and full seedling than seed stand seedlings opposite to fresh and dry weights. Averages of water content ranged from 60.39% (control treatment) to 65.94% (bark treatment) in full seedling of polled treatments and seed sources.

Durmuş Çetinkaya, Nebi Bilir

01.12.2016.

Review paper

General over-view of forest establishment in Turkey

Turkey has 9.64 million hectares of unproductive forests 43% of the total forest area according, to 2016’ forest inventory. Forest establishment including afforestation, reforestation, rehabilitation and private plantation is the most important method to convert unproductive forest into productive ones, and also to increase present productivity of product forest by improved seed and seedling materials. Turkish forest establishment is examined based on past, present, and future perspectives according to forest inventory from 1946 to 2015 in the present study to contribute present and future establishment.

Nebi Bilir

01.12.2015.

Research paper

Seed Source Effect on Quality and Morphology of Turkish Red Pine (Pinus brutia Ten.) Seedlings
This study was carried out to compare quality and morphology in 1+0 year containerized seedlings of Turkish red pine (Pinus brutia Ten.) originating from a seed stand and a seed orchard based on height and root-collar diameter. Averages of seedling height and root-collar diameter were 13.8 cm and 2.63 mm in orchard seedlings, while they were 14.8 cm and 4.56 mm in stand seedlings, respectively. There were significant differences (p≤0.05) between seed sources for the characters according to result of ANOVA. Stand seedlings were better quality than that of orchard seedlings according to quality classification of Turkish Standard Institute. Positive and significant (p≤0.05) relations were found between the characters in both seed sources based on results of correlation analysis. Results of the study were discussed for nursery practices, plantation forestry, and genetic-breeding of the species.

Mahmut Cercioglu, Nebi Bilir