| Popis: |
An explanation has already been given in Chapter 1 about how external factors (environmental), combined with internal factors, control the formation and qualities of wood. Both external and internal factors influence the physiology of the tree which, in turn, determines the kind of wood formed. Thus, without a good knowledge of physiology, one can only hypothesize what causes the production of differing types of wood. That is a major problem because, unfortunately, too little is known about the physiological processes and cell differentiation that control formation of wood with differing properties (Fig. 2.1). |
