Improvement and Plant Physiology of Robinia pseudoacacia

A special issue of Forests (ISSN 1999-4907). This special issue belongs to the section "Forest Ecophysiology and Biology".

Deadline for manuscript submissions: 20 December 2026 | Viewed by 572

Special Issue Editors

Department of Plantation Forestry, Forest Research Institute, University of Sopron, Farkassziget 3, H-4150 Püspökladány, Hungary
Interests: black locust (Robinia pseudoacacia L.) improvement; testing of new black locust clones; phytophysiological characteristics and water use strategies of black locust

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Guest Editor
National Engineering Laboratory for Tree Breeding, Key Laboratory of Genetics and Breeding in Forest Trees and Ornamental Plants, Ministry of Education, College of Biological Sciences and Technology, Beijing Forestry University, Beijing 100083, China
Interests: genetic breeding; polyploid; trait variation; transcriptional regulation

Special Issue Information

Dear Colleagues,

Black locust is a fast-growing, light-demanding, N-fixing multi-purpose tree species native to North America. It exhibits a high photosynthetic rate, particularly under high light conditions. Furthermore, it has effective stomatal regulation, thus it adopts a balanced water regulatory strategy between isohydry and anisohydry to cope with drought stress. Due to its adaptability, it is widely used in reforestation and afforestation projects, particularly in regions facing the negative effects of climate change (high temperature, increased drought, land degradation, etc.). Its rapid growth and biomass production make it a valuable tree species for carbon sequestration, supporting mitigation efforts. Additionally, it plays a crucial role in apiculture. In the context of a potential timber shortage, Robinia offers a sustainable alternative. Its dense, rot-resistant wood is highly durable, making it ideal for construction, furniture, and outdoor applications. Plantations established on marginal sites can provide a renewable wood supply, reducing the ecological pressure on native forests. Moreover, its short rotation cycle ensures frequent harvests, supporting the bioenergy sector and contributing to circular economies.

In order to produce good quality wood on the plantations, it is essential to study the phytophysiological characteristics (photosynthetic activity, carbon sequestration, water use strategies, etc.) of the relatively drought-tolerant tree species, such as black locust. In addition, we can improve this tree species' resilience to extreme climates by transferring seeds from preadapted populations in drier, warmer regions, establishing seed orchards from these genotypes, or using vegetative methods like tissue culture, micropropagation, or rooted cuttings, based on plant physiological studies.

This Special Issue seeks studies from a broad range of research topics related to the improvement and plant physiology of black locust (Robinia pseudoacacia L.), including reports on new clones; physiological responses to drought and heat stress; net assimilation; carbon sequestration; light response curves; water use strategies; water use efficiency (WUE); chlorophyll content; multispectral analyses; flowering characteristics; fast growth; and good stem quality.

Dr. Tamas Abri
Dr. Yun Li
Guest Editors

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Keywords

  • Robinia pseudoacacia
  • plant physiology
  • assimilation
  • transpiration
  • stomatal regulation
  • water use efficiency
  • chlorophyll content

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Published Papers (1 paper)

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Research

14 pages, 3441 KB  
Article
Short-Term Physiological Responses of Black Locust Saplings to Trichoderma-Based Root Priming Under Field Drought Conditions
by András Csótó, József Csajbók, Tamás Ábri, Károly Pál, Andrea Zabiák, Kata Mihály, István Attila Kocsis and Erzsébet Sándor
Forests 2026, 17(5), 582; https://doi.org/10.3390/f17050582 - 10 May 2026
Viewed by 322
Abstract
Black locust (Robinia pseudoacacia L.) has exceptional growth capacity in nutrient-poor environments and is therefore widely used for afforestation and land reclamation on degraded soils. However, drought stress can restrict sapling growth, which undermines the success of their establishment. The effect of [...] Read more.
Black locust (Robinia pseudoacacia L.) has exceptional growth capacity in nutrient-poor environments and is therefore widely used for afforestation and land reclamation on degraded soils. However, drought stress can restrict sapling growth, which undermines the success of their establishment. The effect of a product containing two endophytic strains (Trichoderma afroharzianum P. Chaverri, F.B. Rocha, Degenkolb & Druzhinina TR04 and Trichoderma simmonsii P. Chaverri, F.B. Rocha, Degenkolb & Druzhinina TR05) was studied on a black locust sapling stand under severe drought in eastern Hungary. The two-year-old saplings were root-soaked before planting in sandy soil. The growth of Trichoderma-treated plants improved by late spring. Compared to the control trees, average height increased by 25.75%, and root collar diameter was 21.96% larger. Treated plants also showed 9.1% higher chlorophyll content and 11.1% Normalized Difference Vegetation Index (NDVI). The reduced intercellular CO2 concentration, together with slightly lower stomatal conductance and increased transpiration rate, suggests tighter stomatal regulation and altered water-use dynamics under drought conditions. These responses indicate improved short-term drought acclimation rather than enhanced carbon assimilation capacity. Pre-planting inoculation with endophytic Trichoderma strains provides a sustainable method to enhance the early establishment and drought resilience of black locust, thereby increasing the efficacy of forest restoration by improving the survival of black locust on challenging degraded sites. Full article
(This article belongs to the Special Issue Improvement and Plant Physiology of Robinia pseudoacacia)
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