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Root-growth Inhibition Effects of Holorganic Moder Humus Layer Under Spruce (picea-abies Karst) and Beech (fagus-sylvatica L) .1. Field Observations and Growth Chamber Experiments

Onglets principaux

Weissen, Francois [UCL] Vanpraag, HJ.

Field observations demonstrated inhibition of root growth by moder humus material of the Of2 and Oh-layers under beech and spruce. Growth chamber experiments with spruce seedlings showed that root growth on a natural Of2-substrate is ten times lower than on resin-quartz mixtures. Added phenolic acid (protocatechic a.) inhibited root growth only in sterilized substrate. Leachates of Of2-material inhibited root growth in a mineral substrate devoid of absorption complex (pure quartz sand), but not in a resin-quartz mixture. It is concluded that inhibiting substances are probably ionized molecules that can withstand biodegradation.

Type de document Article de périodique (Journal article) – Article de recherche
Type d'accès Accès restreint
Année de publication 1991
Langue Anglais
Information sur le périodique "Plant and Soil : international journal on plant-soil relationships" - Vol. 135, no. 2, p. 167-174 (1991)
Peer reviewed oui
Editeur Kluwer Academic Publ (Dordrecht)
issn 0032-079X
e-issn 1573-5036
Statut de la publication Publié
Affiliations UCL
Mots-clés FAGUS-SYLVATICA L ; HOLORGANIC LAYER ; MODER HUMUS ; PICEA-ABIES KARST ; ROOT GROWTH INHIBITION
Liens
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Référence bibliographique Weissen, Francois ; Vanpraag, HJ.. Root-growth Inhibition Effects of Holorganic Moder Humus Layer Under Spruce (picea-abies Karst) and Beech (fagus-sylvatica L) .1. Field Observations and Growth Chamber Experiments. In: Plant and Soil : international journal on plant-soil relationships, Vol. 135, no. 2, p. 167-174 (1991)
Permalien http://hdl.handle.net/2078.1/50980