Time and dose of irrigation impact Tuber melanosporum ectomycorrhiza proliferation and growth of Quercus ilex seedling hosts in young black truffle orchards.
Identifieur interne : 001752 ( Main/Exploration ); précédent : 001751; suivant : 001753Time and dose of irrigation impact Tuber melanosporum ectomycorrhiza proliferation and growth of Quercus ilex seedling hosts in young black truffle orchards.
Auteurs : Antoni Olivera [Autriche] ; José Antonio Bonet ; Daniel Oliach ; Carlos ColinasSource :
- Mycorrhiza [ 1432-1890 ] ; 2014.
Descripteurs français
- KwdFr :
- MESH :
- croissance et développement : Ascomycota, Mycorhizes.
- microbiologie : Plant, Quercus.
- méthodes : Irrigation agricole.
- physiologie : Ascomycota, Mycorhizes.
- Facteurs temps.
English descriptors
- KwdEn :
- MESH :
- growth & development : Ascomycota, Mycorrhizae.
- methods : Agricultural Irrigation.
- microbiology : Quercus, Seedlings.
- physiology : Ascomycota, Mycorrhizae.
- Time Factors.
Abstract
In Mediterranean climate, young truffle-oak orchards are subjected to drought episodes that can compromise the development of Tuber melanosporum. We investigated the responses of T. melanosporum to water supply in three periods: May to July, August to October, and May to October. In each period, five water doses were established: 0, 25, 50, 75, and 100% of the reference evapotranspiration (ETo). Five orchards were planted with Quercus ilex inoculated with T. melanosporum, and in each orchard, we arranged a two-factorial design with irrigation period and irrigation dose as main factors to test their combined effects on the development of both T. melanosporum and Q. ilex after 3 years in the field. Irrigation period significantly interacted with irrigation doses for the absolute presence per seedling of T. melanosporum mycorrhizae. Irrigation in May-July increased significantly T. melanosporum colonization in seedlings irrigated with 50% ETo dose compared to the 0% ETo dose. A similar pattern with smaller differences in means was observed in August-October period, but the irrigation doses did not change T. melanosporum colonization when we watered from May to October. We found ectomycorrhizae different from T. melanosporum in 51% of the seedlings studied, but their presence was marginal. Our results suggest that a moderate irrigation dose promotes seedling growth and number of fine root tips per unit of fine root length, which may be potentially colonized by T. melanosporum.
DOI: 10.1007/s00572-013-0545-4
PubMed: 24310929
Affiliations:
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temps</term></keywords></textClass></profileDesc></teiHeader><front><div type="abstract" xml:lang="en">In Mediterranean climate, young truffle-oak orchards are subjected to drought episodes that can compromise the development of Tuber melanosporum. We investigated the responses of T. melanosporum to water supply in three periods: May to July, August to October, and May to October. In each period, five water doses were established: 0, 25, 50, 75, and 100% of the reference evapotranspiration (ETo). Five orchards were planted with Quercus ilex inoculated with T. melanosporum, and in each orchard, we arranged a two-factorial design with irrigation period and irrigation dose as main factors to test their combined effects on the development of both T. melanosporum and Q. ilex after 3 years in the field. Irrigation period significantly interacted with irrigation doses for the absolute presence per seedling of T. melanosporum mycorrhizae. Irrigation in May-July increased significantly T. melanosporum colonization in seedlings irrigated with 50% ETo dose compared to the 0% ETo dose. A similar pattern with smaller differences in means was observed in August-October period, but the irrigation doses did not change T. melanosporum colonization when we watered from May to October. We found ectomycorrhizae different from T. melanosporum in 51% of the seedlings studied, but their presence was marginal. Our results suggest that a moderate irrigation dose promotes seedling growth and number of fine root tips per unit of fine root length, which may be potentially colonized by T. melanosporum.</div></front></TEI><pubmed><MedlineCitation Status="MEDLINE" Owner="NLM"><PMID Version="1">24310929</PMID><DateCompleted><Year>2014</Year><Month>11</Month><Day>21</Day></DateCompleted><DateRevised><Year>2018</Year><Month>11</Month><Day>13</Day></DateRevised><Article PubModel="Print-Electronic"><Journal><ISSN IssnType="Electronic">1432-1890</ISSN><JournalIssue CitedMedium="Internet"><Volume>24 Suppl 1</Volume><PubDate><Year>2014</Year><Month>Apr</Month></PubDate></JournalIssue><Title>Mycorrhiza</Title><ISOAbbreviation>Mycorrhiza</ISOAbbreviation></Journal><ArticleTitle>Time and dose of irrigation impact Tuber melanosporum ectomycorrhiza proliferation and growth of Quercus ilex seedling hosts in young black truffle orchards.</ArticleTitle><Pagination><MedlinePgn>S73-8</MedlinePgn></Pagination><ELocationID EIdType="doi" ValidYN="Y">10.1007/s00572-013-0545-4</ELocationID><Abstract><AbstractText>In Mediterranean climate, young truffle-oak orchards are subjected to drought episodes that can compromise the development of Tuber melanosporum. We investigated the responses of T. melanosporum to water supply in three periods: May to July, August to October, and May to October. In each period, five water doses were established: 0, 25, 50, 75, and 100% of the reference evapotranspiration (ETo). Five orchards were planted with Quercus ilex inoculated with T. melanosporum, and in each orchard, we arranged a two-factorial design with irrigation period and irrigation dose as main factors to test their combined effects on the development of both T. melanosporum and Q. ilex after 3 years in the field. Irrigation period significantly interacted with irrigation doses for the absolute presence per seedling of T. melanosporum mycorrhizae. Irrigation in May-July increased significantly T. melanosporum colonization in seedlings irrigated with 50% ETo dose compared to the 0% ETo dose. A similar pattern with smaller differences in means was observed in August-October period, but the irrigation doses did not change T. melanosporum colonization when we watered from May to October. We found ectomycorrhizae different from T. melanosporum in 51% of the seedlings studied, but their presence was marginal. 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