TAILIEUCHUNG - Invest Agrar: Sist Recur For (2004) 13(3), Characterisation of the xylem of 352 conifers

Invest Agrar: Sist Recur For (2004) 13(3), 452-478 Characterisation of the xylem of 352 conifers L. García Esteban1*, P. de Palacios de Palacios1, A. Guindeo Casasús1 and F. García Fernández2 2 Universidad Politécnica de Madrid. Cátedra de Tecnología de la Madera. ETS Ingenieros de Montes. Ciudad Universitaria. 28040 Madrid. Spain Asociación de Investigación Técnica de las Industrias de Madera y Corcho. C/ Flora, 3. 28013 Madrid. Spain 1 Abstract Following the traditional methods of preparation and description of wood at microscopy level, 352 descriptions of the woods of conifers were made. For the characterisation of each wood a multiple entry key was prepared, with a total of. | Invest Agrar Sist Recur For 2004 13 3 452-478 Characterisation of the xylem of 352 conifers L. García Esteban1 P. de Palacios de Palacios1 A. Guindeo Casasús1 and F. García Fernandez2 1 Universidad Politécnica de Madrid. Cátedra de Tecnología de la Madera. ETS Ingenieros de Montes. Ciudad Universitaria. 28040 Madrid. Spain 2 Asociación de Investigation Técnica de las Industrias de Madera y Corcho. C Flora 3. 28013 Madrid. Spain Abstract Following the traditional methods of preparation and description of wood at microscopy level 352 descriptions of the woods of conifers were made. For the characterisation of each wood a multiple entry key was prepared with a total of 81 features divided into four groups tracheids with 29 features axial parenchyma with 8 wood rays with 37 and resin canals with 7. Key words anatomy wood identification. Resumen Caracterizacion del xilema de 352 confferas Siguiendo los métodos tradicionales de preparación y descripción de la madera a nivel microscópico se han reali-zado 352 descripciones de maderas de coniferas. Para la caracterización de cada madera se ha elaborado una clave de múltiple entrada con un total de 81 caracteres dividida en cuatro grupos traqueidas con 29 caracteres parénquima axial 8 radios lenosos 37 y canales resiniferos 7. Palabras clave anatomía madera identificación. Introduction The uniformity of the xylem of conifers places this vegetal group among those that present most difficulties when it comes to making an identification. When undertaking identification of the wood of conifers the first obstacle to overcome is delimiting which large group the wood belongs to . with or without canals with or without ray tracheids etc. The tool that best responds to this initial placement is without a doubt the multiple entry key. Philipps 1948 proposed the first list of features with which any conifer wood could be characterised using a key of this type. He based it on 36 features divided into 6 groups bringing about a .

• Lâm nghiệp
• García Esteban
• de Palacios
• de Palacios
• Guindeo Casasús1
• García Fernández
• Characterisation of the xylem