TAILIEUCHUNG - Báo cáo toán học: " Relations entre la qualité du liège, composition minérale et la composition minérale des feuilles du chêne-liège (Quercus suber L.)"

Tuyển tập các báo cáo nghiên cứu về lâm nghiệp được đăng trên tạp chí lâm nghiệp quốc tế đề tài: Relations entre la qualité du liège, composition minérale et la composition minérale des feuilles du chêne-liège (Quercus suber L.). | 521 Ann. For. Sci. 56 1999 521-527 Inra Elsevier Paris Article original Relations entre la qualité du liège sa composition mỉnéraỉe et la composition minérale des feuilles du chêne-liège Quercus suber L. Michele Courtois Philippe Masson Laboratoire d ingenierie agronomique Ensat avenue de rAgrobiopôle BP 107 31326 Castanet-Tolosan cedex France Reẹu le 4 juin 1998 accepté 28 octobre 1998 Abstract - Relationships between the quality of cork its inorganic content and the inorganic content of the leaves of the corkoak Quercus Suber L. . The aim of this work is to set up a relationship between the quality of cork its inorganic content and the inorganic content of the leaves of the cork-oak. The mineral contents of both leaves and cork were identified for a range of elements nitrogen phosphorus potassium calcium magnesium iron copper zinc and manganese . The quality of the cork was evaluated by experts in the cork industry on the basis of visual assessment of cork stoppers resulting from each tree. A study of correlations between the cork inorganic contents and the quality of cork demonstrates that among those measures only the potassium content of cork is related to the cork quality. The cork quality seems to be independent of the leaf inorganic content which is held to be an indicator of the cork-oak mineral nutrition. Inra Elsevier Paris. Quercus Suber L cork leaf inorganic content I quality Resume - Le but de ce travail est de determiner parmi des analyses minerales de feuilles et de liège un OU plusieurs elements miné-raux dont la teneur pourrait être en relation avec la qualité du liège. La composition minérale des feuilles et du liège a done été déter-minée pour un certain nombre d elements azote phosphore potassium calcium magnesium fer cuivre zinc et manganese . La qualité du liège est estimée par des experts de I industrie du liège à partir des ratios de choix visuels des bouchons obtenus de chaque arbre. L etude des correlations entre les teneurs en elements .

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