BakryLamhamediCaronEtAl2013

Reference

Bakry, M., Lamhamedi, M.S., Caron, J., Bernier, P.Y., El Abidine, A.Z., Stowe, D.C., Margolis, H.A. (2013) Changes in the physical properties of two Acacia compost-based growing media and their effects on carob (Ceratonia siliqua L.) seedling development. New Forests, 44(6):827-847.

Abstract

In arid zones, the use of compost for plant production in forest nurseries is hindered by a lack of water. The main objectives of this study were (1) to evaluate the physical stability of composts produced from shredded branches of Acacia cyanophylla and A. cyclops subjected to a repeated drying and wetting cycles, similar to those used at the operational scale in nurseries in arid regions and to compare these composts with a standard peat-vermiculite (PV) substrate; (2) to identify the relevant substrate physical variables that correlate with seedling growth. Carob (Ceratonia siliqua L.) was cultivated during a production cycle of 27 weeks in a completely randomized block experiment. Substrate physical variables were measured at the beginning, middle and end of the experiment. Seedling growth variables were evaluated over the course of the production cycle, while gas exchange and water-relation variables were measured during a wetting and drying cycle at the end of the experiment. All three substrates produced vigorous seedlings with well-developed root systems that colonized the entire root plug. The growth of seedlings produced in the PV substrate was better than those grown in the compost-based substrates. No significant differences in gas exchange capacities and water relation variables were observed among the three substrates at the end of experiment with the exception of net photosynthesis, which was higher for the PV substrate at high substrate matric potential. Excessive drainage was negatively correlated with growth variables while water availability in the early growth phase and air porosity towards the end of experiment were positively correlated. Performance of the two composts could be increased by improving their initial structure and stability and by adjusting the irrigation regime.

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@ARTICLE { BakryLamhamediCaronEtAl2013,
    AUTHOR = { Bakry, M. and Lamhamedi, M.S. and Caron, J. and Bernier, P.Y. and El Abidine, A.Z. and Stowe, D.C. and Margolis, H.A. },
    TITLE = { Changes in the physical properties of two Acacia compost-based growing media and their effects on carob (Ceratonia siliqua L.) seedling development },
    JOURNAL = { New Forests },
    YEAR = { 2013 },
    VOLUME = { 44 },
    PAGES = { 827-847 },
    NUMBER = { 6 },
    MONTH = { NOV },
    ABSTRACT = { In arid zones, the use of compost for plant production in forest nurseries is hindered by a lack of water. The main objectives of this study were (1) to evaluate the physical stability of composts produced from shredded branches of Acacia cyanophylla and A. cyclops subjected to a repeated drying and wetting cycles, similar to those used at the operational scale in nurseries in arid regions and to compare these composts with a standard peat-vermiculite (PV) substrate; (2) to identify the relevant substrate physical variables that correlate with seedling growth. Carob (Ceratonia siliqua L.) was cultivated during a production cycle of 27 weeks in a completely randomized block experiment. Substrate physical variables were measured at the beginning, middle and end of the experiment. Seedling growth variables were evaluated over the course of the production cycle, while gas exchange and water-relation variables were measured during a wetting and drying cycle at the end of the experiment. All three substrates produced vigorous seedlings with well-developed root systems that colonized the entire root plug. The growth of seedlings produced in the PV substrate was better than those grown in the compost-based substrates. No significant differences in gas exchange capacities and water relation variables were observed among the three substrates at the end of experiment with the exception of net photosynthesis, which was higher for the PV substrate at high substrate matric potential. Excessive drainage was negatively correlated with growth variables while water availability in the early growth phase and air porosity towards the end of experiment were positively correlated. Performance of the two composts could be increased by improving their initial structure and stability and by adjusting the irrigation regime. },
    ADDRESS = { VAN GODEWIJCKSTRAAT 30, 3311 GZ DORDRECHT, NETHERLANDS },
    AFFILIATION = { Bakry, M (Reprint Author), Univ Laval, Ctr Etud Foret, Fac Foresterie Geog \& Geomat, 2405 Rue Terrasse, Quebec City, PQ G1V 0A6, Canada. Bakry, Mustapha; Stowe, Debra C.; Margolis, Hank A., Univ Laval, Ctr Etud Foret, Fac Foresterie Geog \& Geomat, Quebec City, PQ G1V 0A6, Canada. Lamhamedi, Mohammed S., Minist Ressources Nat Quebec, Direct Rech Forestiere, Quebec City, PQ G1P 3W8, Canada. Caron, Jean, Univ Laval, Dept Sols \& Genie Agroalimentaire, Fac Sci Agr \& Alimentat, Quebec City, PQ G1V 0A6, Canada. Bernier, Pierre Y., Nat Resources Canada, Laurentian Forestry Ctr, Canadian Forest Serv, Quebec City, PQ G1V 4C7, Canada. El Abidine, Abdenbi Zine, Ecole Natl Forestiere Ingn, Tabriquet, Sale, Morocco. },
    AUTHOR-EMAIL = { bakry.mustapha@gmail.com mohammed.lamhamedi@mrn.gouv.qc.ca },
    DOC-DELIVERY-NUMBER = { 253EI },
    DOI = { 10.1007/s11056-013-9368-6 },
    FUNDING-ACKNOWLEDGEMENT = { ministere des Ressources naturelles et de la Faune du Quebec [112310094]; Fonds de recherche sur la nature et les technologies [2008-FT-124372] },
    FUNDING-TEXT = { The authors are grateful to Dr. V. Juneau and C. Boily for their technical support and for their contribution. We thank O. Bakry and Dr. N. Bakry for assistance with morphological and physiological measurements and data analyses. Financial support for this project was provided to Dr. Mohammed S. Lamhamedi by the ministere des Ressources naturelles et de la Faune du Quebec (project: 112310094) and to Dr. Hank Margolis by the Fonds de recherche sur la nature et les technologies (project 2008-FT-124372). },
    ISSN = { 0169-4286 },
    JOURNAL-ISO = { New For. },
    KEYWORDS = { Acacia; Composts; Drying and wetting cycles; Physical properties; Ceratonia siliqua; Arid zones },
    KEYWORDS-PLUS = { {AIR-FILLED POROSITY; PRUNUS-X CISTENA; MODERATELY DECOMPOSED PEAT; PICEA-GLAUCA SEEDLINGS; HYDRAULIC CONDUCTIVITY; MEDITERRANEAN REGION; GREENHOUSE TOMATO; STRUCTURE BUILDER; GAS-DIFFUSION; PLANT-GROWTH} },
    LANGUAGE = { English },
    NUMBER-OF-CITED-REFERENCES = { 69 },
    OWNER = { nafon9 },
    PUBLISHER = { SPRINGER },
    RESEARCH-AREAS = { Forestry },
    TIMES-CITED = { 0 },
    TIMESTAMP = { 2013.12.12 },
    TYPE = { Article },
    WEB-OF-SCIENCE-CATEGORIES = { Forestry },
}

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