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Fall fertilization of Pinus resinosa seedlings: nutrient uptake, cold hardiness, and morphological development / M. Anisul Islam in Annals of Forest Science, Vol 66 n° 7 (October - November 2009)  

Public [article]  inAnnals of Forest Science > Vol 66 n° 7 (October - November 2009) . - n° 704 Titre : Fall fertilization of Pinus resinosa seedlings: nutrient uptake, cold hardiness, and morphological development Titre original : Fertilisation automnale des plants de Pinus resinosa : absorption des éléments nutritifs, rusticité au froid, et développement morphologique Type de document : Article/Communication Auteurs : M. Anisul Islam, Auteur ; Kent G. Apostol, Auteur ; Douglass F. Jacobs, Auteur ; R. Kasten Dumroese, Auteur Année de publication : 2009 Article en page(s) : n° 704 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Termes IGN] azote [Termes IGN] croissance des arbres [Termes IGN] Etats-Unis [Termes IGN] nutrition végétale [Termes IGN] phytobiologie [Termes IGN] Pinus resinosa [Termes IGN] rusticité [Vedettes matières IGN] Botanique Résumé : (auteur) Fall fertilization may increase plant nutrient reserves, yet associated impacts on seedling cold hardiness are relatively unexplored. Bareroot red pine (Pinus resinosa Ait.) seedlings in north-central Minnesota, USA were fall fertilized at the end of the first growing season with ammonium nitrate (NH4 NO3) at 0, 11, 22, 44, or 89 kg N ha−1. Seedling morphology and cold hardiness [assessed by freeze induced electrolyte leakage (FIEL)] were evaluated six weeks after fertilization and following the second growing season. Seedling height and number of needle primordia increased with fertilizer rate for both sampling years. Seedlings fertilized with 44 and 89 kg N ha−1 attained target height (15 cm) after the second growing season. Shoot and root N concentration increased after the first growing season in fall fertilized seedlings compared to controls. Fall fertilized seedlings had lower FIEL (i.e., increased cold hardiness) compared to controls when tested at –40 °C after the first growing season, but no significant differences in FIEL of control and fertilized seedlings were observed after the second growing season. Results suggest that fall fertilization of red pine seedlings can help render desired target height in the nursery, while maintaining or increasing cold hardiness levels. Numéro de notice : A2009-625 Affiliation des auteurs : non IGN Thématique : FORET Nature : Article nature-HAL : ArtAvecCL-RevueIntern DOI : 10.1051/forest/2009061 Date de publication en ligne : 02/10/0229 En ligne : https://www.afs-journal.org/articles/forest/full_html/2009/07/f09071/f09071.html Format de la ressource électronique : url article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=72828 [article]

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Code-barres	Cote	Support	Localisation	Section	Disponibilité
IFN-001-P000668	PER	Revue	Nogent-sur-Vernisson	Salle périodiques	Exclu du prêt