التفاصيل البيبلوغرافية
| العنوان: |
EFFECT OF GENETIC MATERIAL AND FERTILIZATION ON ESTIMATING THE DRYING POTENTIAL OF Tectona grandis Linn F. |
| المؤلفون: |
Pereira de Souza, Poliane, de Figueiredo Latorraca, João Vicente, Della Justina do Carmo, Fábio Henrique, Vieira dos Santos, Glaycianne Christine, Hissashi Takizawa, Fausto |
| المصدر: |
Floresta; Jan-Mar2023, Vol. 53 Issue 1, p28-37, 10p |
| مصطلحات موضوعية: |
TEAK, LUMBER drying, WOOD, MANUFACTURING processes, ANIMAL cloning, LUMBER |
| Abstract (English): |
Drying is a fundamental step in the lumber production process. The definition of variables that affect the quality of the process, such as initial and final temperatures as well as drying potential, depends on the known technological knowledge of the wood, as well as on the experience of the drying process developed for a particular species. With this in mind, we developed an experiment using wood from four genetic materials (three clones and one seminal) of the species Tectona grandis cultivated with and without fertilization. This was done to estimate and evaluate the parameters used in the explanation of drying programs. The values of the initial and final temperatures, and those of the drying potentials, were estimated using the drastic drying methodology, which evaluates the drying rate and defect score (cracks and collapse). In addition to the drying parameters, the physical properties that affect the drying performance were also evaluated. The results show that origin and fertilization did not affect the initial and final temperatures. However, the potential drying parameters were significantly affected by the combination of treatments. Furthermore, the wood drying potential of certain genetic materials was positively affected by fertilization. Finally, the material from the fertilized areas had the lowest basic densities, the highest initial moisture content, and the highest drying rates. [ABSTRACT FROM AUTHOR] |
| Abstract (Portuguese): |
A secagem é uma etapa fundamental no processo de produção da madeira serrada. A definição de variáveis que afetam a qualidade do processo como temperaturas inicial, final e potencial de secagem depende do conhecimento tecnológico da madeira, bem como da experiência sobre o processo desenvolvido para determinada espécie. Pensando nisso, desenvolvemos um experimento com a madeira de quatro materiais genéticos/procedências (3 clones e 1 seminal) da espécie Tectona grandis cultivadas com e sem adubação, a fim de estimar e avaliar esses parâmetros utilizados na elaboração de programas. Os valores das temperaturas inicial e final e potencial de secagem foram estimados a partir da metodologia da secagem drástica, onde se avaliou a taxa e escore de defeitos (rachaduras e colapso). Além dos parâmetros da secagem, as propriedades físicas da madeira também foram avaliadas. Os resultados mostraram que a procedência e a adubação não afetaram os parâmetros temperaturas inicial e final. Contudo, o potencial de secagem foi afetado significativamente pela associação dos tratamentos. Observou-se que os potenciais de secagem da madeira de determinados materiais genéticos foram afetados positivamente pela adubação. Os materiais provenientes de áreas adubadas apresentaram as menores densidades básicas, maiores teores de umidade inicial e maiores taxas de secagem. [ABSTRACT FROM AUTHOR] |
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