Production in Forest Nurseries, Field Performance of Seedlings and Natural Regeneration in the Context of Climate Change: 2nd Edition

Dear Colleagues,

The success of reforestation and restoration programs concerns forest land managers worldwide. With climatic extremes and unpredictable increases in natural disturbances (fires, insect attacks, etc.) across millions of hectares, forest managers are must seek to maintain biodiversity and increase forest productivity by combining the use of reforestation and natural regeneration.

The success of the various reforestation programs (including those aimed at production, protection, recreation, agroforestry, combating desertification, etc.) is a major challenge that requires optimization and control of the various steps in the production chain of seedlings of high morphophysiological quality, from seeds to cuttings and emblings to planting. The establishment, survival, and growth of seedlings in reforestation sites are factors closely linked to the different cultural practices in nurseries and silvicultural techniques in reforestation sites. In the context of climate change, seedlings and plantations are subject to different environmental stresses and a variety of very severe climatic extremes that negatively affect their survival and growth.

Thus, the morphophysiological quality of seedlings is one of the essential components that directly affects the success of reforestation programs. The production of quality seedlings or emblings in forest nurseries and the success of plantations are strongly linked to the selection of genetic sources (provenance, families, clones) adapted to the plantation sites, to the different cultural practices applied in the nursery, to the handling, transportation, and storage of seedlings or emblings before their plantation on a reforestation site, to site preparation, and to silvicultural techniques.

In addition to reforestation (artificial regeneration), it is necessary to understand natural regeneration patterns as well as the development of methods, silvicultural techniques, and tools to improve the success of the renewal of the stands in response to increasing biotic and abiotic stresses (drought, fires, insect and fungal attacks, etc.). 

This Special Issue will integrate original research, practical strategies, and reviews related to, but not limited to, the following potential topics:

(a) Genetic material and seed quality, growth and physiology of seedlings produced by somatic embryogenesis, cutting, seeds, and other propagation techniques;

(b) Production in forest nurseries and effects of different practical techniques on the morphophysiological quality of tree and agroforestry seedlings or emblings: containers, and seedling size, physicochemical properties of different growing media, management of water and fertilizers, mineral nutrient leaching, water stress preconditioning, ecophysiology of seedlings or stecklings, frost and water stress tolerance, short-day treatment, hardening and dehardening; seedling or embling storage; mycorrhizal fungi and other symbioses, etc.;

(c) Field performance of tree and agroforestry seedlings or emblings under different site conditions, handling and transportation, assignment of the genetic characteristics of seedlings to the conditions of the planting site and the current and future climate, assisted migration, competing vegetation, site preparation techniques and silvicultural treatments, growth and physiology of seedlings or emblings in response to different environmental stress conditions (drought, salinity, heavy metal, frost, etc.);

(d) The development of operational research and development programs adapted to the production chain of tree seedlings and the transfer of knowledge to practitioners in developed and developing countries;

(e) Natural regeneration in response to increasing biotic and abiotic stresses (drought, fires, insect and fungal attacks, etc.), factors affecting natural regeneration, ecophysiology of natural regeneration, silvicultal, silvicultural techniques to facilitate and improve the establishment, survival and growth of natural regeneration, etc. 

Dr. Mohammed S. Lamhamedi
Prof. Dr. Steeve Pepin
Prof. Dr. Damase P. Khasa
Guest Editors

Manuscript Submission Information

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• seed and seedling quality
• cutting
• somatic embryogenesis
• nursery production
• cultural practices
• environmental stress
• mycorrhizal and bacteria symbioses
• field performance
• research and development programs adapted to the production chain of tree seedlings
• agroforestry products and their valorization
• natural regeneration