●Content introduced in brief
●Preface
●Part one General outline
●1 Introduction
●1.1 Natural background of secondary xylem development
●1.2 The source, formation and content of the ideas of developmental studies of secondary xylem
●1.3 Theoretical basis of experimental measures adopted in the studies for affirming the existence of secondary xylem development
●1.4 Originality of studies of secondary xylem development
●2 Experimental measures, materials and data processing
●2.1 Determination
●2.2 Factors to make choice of experimental material
●2.3 Experimental materials
●2.4 Determining the formation time of sampling position in secondary xylem
●2.5 Data processing
●3 That developmental phenomenon exists during secondary xylem life is proved by diagram
●3.1 The diagrammatic conditions and necessity of secondary xylem development
●3.2 The features of development diagram of two directional growth ages of secondary xylem
●3.3 The technical terms related to ordinal numbers offing positions in secondary xylem
●3.4 Explanation of four types of figures in this book
●3.5 The general explanation of appendant tables......
內容簡介
次生木質部發育研究的內容是有關木材生成機理。這是林業科學的重要核心內容。植物學解決了木材逐年生成的共性細胞學過程，包括樹莖頂稍初生生長至次生生長的連續轉換。但樹莖逐年次生生長中的變化卻是林學和木材科學的學術盲區。單株樹莖中的木材差異是樹木在遺傳控制下次生生長中的變化遺傳物，但迄今把它與種內株間和種間在學術上都看作變異（Woodvariation）。這一誤識充分表明，樹莖逐年次生生長中的變化是木材生成機理中的重要部分。本項目研究的新理念：認定單株內的木材差異是在生命過程變化中形成，並證明它受遺傳控制，由此把這一變化定性為次生木質部發育。
