Natural durability of forty five wood species collected from several forest regions in Indonesia was tested against drywood termites (Light and subterranean termites (Cryptotermes cynocephalus Coptotermes curvignathus .) Holmgreen Natural durability tests against dry-wood termites and subterranean termites were conducted based on). Indonesian standard Results show that six wood species are classified as very durable wood (class I), SNI 7207:2014. eleven wood species are durable (class II), and 28 species belong to the low durability classes (class III, IV and V) against dry wood termites Light.. tests against substeranean termites (.) Similar (C cynocephalus C. curvignathus Holmgreen reveal that seven wood species are classified into highly resistant (durable class I), 14 wood species are resistant) (durable class II), and the remaining 24 wood species belong to durability class of III, IV, and V. The testing results indicate that wood with high natural durability against dry wood termites is not necessarily resistant to subterranean termites and vice versa.
Recently, the availability of wood species from natural forests has run limited and scarce. Consequently, fulfilling public demand of wood is met in part by woods from plantation forest. The problem with the plantation forest is that its woods contain relatively high juvenile wood portions due to the felling or harvesting at relatively younger tree ages (with shorter rotation) than those from natural forest trees.In wood processing the presence of juvenile wood often causes problems with its corresponding products such as defects after drying thereby lowering their qualities. As the relevance, this experiment dealt with characteristics (e.g. anatomy features) and drying qualities of wood with high juvenile wood content. Wood species used in this experiment was 22-year old mangium (Acacia mangium Willd.).The results revealed that the percentage of juvenile wood in mangium as obtained through regression equation was 50% (R 2 = 70%) with particular characteristics such as short fibers, end surface defects, honeycombs and collapses after drying. Therefore, it is suggested that great care should be taken in processing and uses, particularly during the drying by implementing mild schedules (i.e. staged temperature changes).
General characteristics, anatomical properties and fiber quality of five locally potential wood species from West Java andCiri umum, struktur anatomi dan kualitas serat lima jenis kayu andalan setempat dari Jawa Barat dan Banten, telah diteliti untuk keperluan identifikasi kayu. Ciri utama dari kelima jenis kayu tersebut berdasarkan Daftar Ciri Makroskopik Kayu Daun Lebar IAWA adalah sebagai berikut: (Forst) Seem (ki cau) kayu teras putih jerami hingga kuning muda dan tidak dapat dibedakan dengan kayu gubal, arah serat berpadu dan kayunya agak lunak; pori umumnya bergerombol, dengan diameter yang agak kecil, parenkim vaskisentrik dan pita sempit, jari-jari seluruhnya soliter, jaringan serat dasar dengan ceruk sederhana sangat kecil, kristal bentuk rafid dalam sel jari-jari;Pers. (huru manuk) kayu teras putih krem, tidak dapat dibedakan dengan gubal, arah serat lurus dan agak keras, pori hampir seluruhnya soliter, parenkim vaskisentrik, jari-jari seluruhnya sel baring dan memiliki sel minyak yang bergabung dengan parenkima aksial; Blume (ki renghas) kayu teras putih agak merah muda berbeda dengan kayu gubal, bercorak pada bidang radial, arah serat berpadu dan kayunya
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