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Monitoring and control of forest seedling quality in Europe

2023; Elsevier BV; Volume: 546; Linguagem: Inglês

10.1016/j.foreco.2023.121308

1872-7042

Mилaн Maтaругa, Branislav Cvjetković, Bart De Cuyper, Ina Aneva, P. Zhelev, Pavel Cudlín, Marek Metslaid, Ville Kankaanhuhta, Catherine Collet, Peter Annighöfer, Thomas Mathes, Marianthi Tsakaldimi, Paitaridou Despoina, Rakel J. Jónsdóttir, María Cristina Monteverdi, Giovanbattista de Dato, Barbara Mariotti, Dana Dina Kolevska, Jelena Lazarević, Inger Sundheim Fløistad, Marcin Klisz, Wojciech Gil, Vasco Paiva, Teresa Fonseca, Valeriu-Norocel Nicolescu, Vladan Popović, Jovana Devetaković, Ivan Repáč, Gregor Božič, Hojka Kraigher, Enrique Andivia, Julio Javier Díez, Henrik Böhlenius, Magnus Löf, Nebi Bilir, Pedro Villar‐Salvador,

Forest ecology and management

The relationship between the quality of forest seedlings and their outplanting survival and growth has long been recognized. Various attributes have been proposed to measure the quality of planted seedlings in forest regeneration projects, ranging from simple morphological traits to more complex physiological and performance attributes, or a combination thereof. However, the utility and meaning of seedling quality attributes can differ significantly among regions, nursery practices, site planting conditions, species and the establishment purpose. Here, forest scientists compiled information using a common agreed questionnaire to provide a review of current practices, experiences, legislation and standards for seedling quality across 23 European countries. Large differences exist in measuring seedling quality across countries. The control of the origin of seed and vegetative material (genetic component of plant quality), and control of pests and diseases are common practices in all countries. Morphological attributes are widely used and mandatory in most cases. However, physiological attributes are hardly used at the operative level and mainly concentrated to Fennoscandia. Quality control legislation and seedling quality standards are less strict in northern European countries where seedling production is high, and quality control relies more on the agreements between producers and local plant material users. In contrast, quality standards are stricter in Southern Europe, especially in the Mediterranean countries. The control of seedling quality based on plantation and reforestation success is uncommon and depends on the conditions of the planting site, the traditional practices and the financial support provided by each country. Overall, European countries do not apply the "target seedling concept" for seedling production except for seed origin. Seedling production in many countries is still driven by traditional "know-how" and much less by scientific knowledge progress, which is not adequately disseminated and transferred to the end-users. Our review highlights the need for greater harmonization of seedling quality practices across Europe and the increased dissemination of scientific knowledge to improve seedling quality in forest regeneration activities.