Intercropping of aromatic plants in truffle orchards: short-term effect on extraradical truffle mycelium and aromatic plant growth
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Author
Garcia-Barreda, Sergi
Navarro-Rocha, Juliana
Gómez-Molina, Eva
Sanz, María Ángeles
Sánchez, Sergio
Publication date
2023-06-09ISSN
0032-079X
Abstract
Background and Aims
Intercropping of truffle-producing trees with aromatic plants is used to improve profitability of truffle orchards during the initial 4–7 years. However, after that period the viability of this system is challenged by the appearance of brûlés, an area around host tree characterised by scarce plant cover where the fungus exhibits allelopathic activity. We aimed to investigate the ecological interactions between these crops and between their associated mycorrhizal fungi in adult truffle plantations.
Methods
We simulated two intercropping systems, truffle oak – lavender and truffle oak – rosemary in their adult stage. We analysed and compared aromatic plants and soil samples inside and outside the brûlés during the first year of the aromatic plants in the field.
Results
We found a strong negative relation of brûlés with the growth of the aromatic plants, although not a decrease in the arbuscular mycorrhizal colonization of their roots. The essential oil yield and composition of aromatic plants was affected by brûlés. The extraradical truffle mycelium was not significantly affected by the presence of aromatic plants.
Conclusions
The growth and yield of aromatic plants was impaired during their first year growing in brûlés, whereas no negative effect of aromatic plants on truffle fruiting potential was found. The study improves our understanding of the mechanisms influencing the viability of the truffle tree – aromatic plant intercropping and the possible technical challenges.
Document Type
Article
Document version
Accepted version
Language
English
Subject (CDU)
633 - Field crops and their production
Pages
28
Publisher
Springer
Is part of
Plant and Soil
Citation
Garcia-Barreda, Sergi, Juliana Navarro-Rocha, Eva Gómez-Molina, Vasiliki Barou, María Ángeles Sanz, Sergio Sánchez, and Javier Parladé. 2023. "Intercropping Of Aromatic Plants In Truffle Orchards: Short-Term Effect On Extraradical Truffle Mycelium And Aromatic Plant Growth". Plant And Soil. doi:10.1007/s11104-023-06106-3.
Grant agreement number
MINECO-FEDER/Programa Estatal de I+D+I orientada a los retos de la sociedad/RTI2018-093907-B-C21/ES/Diseño e implementacion de sistemas multiproductivos sostenibles en truficultura y analisis de los servicios ecosistemicos asociados/TUBERSYSTEMS
MINECO-FEDER/Programa Estatal de I+D+I orientada a los retos de la sociedad/RTI2018-093907-B-C22/ES/Diseño e implementacion de sistemas multiproductivos sostenibles en truficultura y analisis de los servicios ecosistemicos asociados/TUBERSYSTEMS
EC/H2020/101007623/EU/INnovation in Truffle cultivation, preservAtion, proCessing and wild truffle resources managemenT/INTACT
Program
Protecció Vegetal Sostenible
This item appears in the following Collection(s)
- ARTICLES CIENTÍFICS [2555]
Rights
© The Author(s), under exclusive licence to Springer Nature Switzerland AG 2023