caa a22 4500 378867679 CHVBK 20180305123401.0 cr unu---uuuuu 161128e20030820xx s 000 0 eng 10.1515/HF.2003.082 doi (NATIONALLICENCE)gruyter-10.1515/HF.2003.082 Effects of Clonal Selection by Microfibril Angle on the Genetic Improvement of Stiffness in Cryptomeria japonica D. Don [Elektronische Daten] [R. Nakada, Y. Fujisawa, Y. Hirakawa] The microfibril angle (MFA) of latewood tracheids and its radial variation at breast height in Cryptomeria japonica D. Don (sugi) were investigated with twelve clones collected from three sites in the Kyushu region, Japan. Large variations both between clones and between sites were observed. The MFAs were well correlated to the stiffness of the logs collected from the sample trees. A simulation of clonal selection according to the ranking of the clones in MFA demonstrated that the log stiffness of the selected population was much improved even when the selection relied on MFAs in the second ring from the pith. The improvement in log stiffness by MFA selection was not different from the selection by log stiffness itself. The results indicate that early selection by MFA is very effective in improving log stiffness in this species. Copyright © 2003 by Walter de Gruyter GmbH & Co. KG Timber & wood processing nationallicence Biotechnology nationallicence Materials science nationallicence Nakada R. aut Fujisawa Y. aut Hirakawa Y. aut Holzforschung Walter de Gruyter 57/5(2003-08-20), 553-560 0018-3830 57:5<553 2003 57 hfsg https://doi.org/10.1515/HF.2003.082 text/html Onlinezugriff via DOI 1 research article jats NATIONALLICENCE 856 40 https://doi.org/10.1515/HF.2003.082 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Nakada R. aut NATIONALLICENCE 700 1- Fujisawa Y. aut NATIONALLICENCE 700 1- Hirakawa Y. aut NATIONALLICENCE 773 0- Holzforschung Walter de Gruyter 57/5(2003-08-20), 553-560 0018-3830 57:5<553 2003 57 hfsg CC0 http://creativecommons.org/publicdomain/zero/1.0 nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-gruyter