Author: J. Thomas Quirk
Publisher:
ISBN:
Category : Red pine
Languages : en
Pages : 9
Book Description
Effect of mechanical stress on growth and anatomical structure of red pine (Pinus resinosa Ait.)
Author: J. Thomas Quirk
Publisher:
ISBN:
Category : Red pine
Languages : en
Pages : 9
Book Description
Publisher:
ISBN:
Category : Red pine
Languages : en
Pages : 9
Book Description
Spiral Grain and Wave Phenomena in Wood Formation
Author: John M. Harris
Publisher: Springer Science & Business Media
ISBN: 364273779X
Category : Technology & Engineering
Languages : en
Pages : 226
Book Description
It is widely recognized that spiral grain in trees severely reduces the value of sawn timber through warping and loss of strength, and that it also causes problems for other wood uses as diverse as transmission poles or plywood. Yet, paradoxically, there are highly valued grain patterns including wavy and interlocked grain, whose origins in the cambium invite direct comparison with those of spiral grain, so that many authorities believe them to be related phenomena. In recent years this concept has prompted extensive research into the anatomy, genetics, and physiology of all such grain patterns in wood. As a result it has become apparent that tree cambia provide excellent systems through which to study the origins of stem polarity and the complex processes of morphogenetic control in plants. Beside these and other pressing topics for research, the book examines methods of measuring grain deviations, and considers their influence on wood properties, on the economics of timber production, and on wood manufacturing.
Publisher: Springer Science & Business Media
ISBN: 364273779X
Category : Technology & Engineering
Languages : en
Pages : 226
Book Description
It is widely recognized that spiral grain in trees severely reduces the value of sawn timber through warping and loss of strength, and that it also causes problems for other wood uses as diverse as transmission poles or plywood. Yet, paradoxically, there are highly valued grain patterns including wavy and interlocked grain, whose origins in the cambium invite direct comparison with those of spiral grain, so that many authorities believe them to be related phenomena. In recent years this concept has prompted extensive research into the anatomy, genetics, and physiology of all such grain patterns in wood. As a result it has become apparent that tree cambia provide excellent systems through which to study the origins of stem polarity and the complex processes of morphogenetic control in plants. Beside these and other pressing topics for research, the book examines methods of measuring grain deviations, and considers their influence on wood properties, on the economics of timber production, and on wood manufacturing.
List of Publications
Author: Forest Products Laboratory (U.S.)
Publisher:
ISBN:
Category : Forests and forestry
Languages : en
Pages : 540
Book Description
Publisher:
ISBN:
Category : Forests and forestry
Languages : en
Pages : 540
Book Description
Federal Information Processing Standards Publication
Author:
Publisher:
ISBN:
Category : Public administration
Languages : en
Pages : 1228
Book Description
Publisher:
ISBN:
Category : Public administration
Languages : en
Pages : 1228
Book Description
Tissue Culture of Trees
Author: John H. Dodds
Publisher: Springer Science & Business Media
ISBN: 1468466917
Category : Science
Languages : en
Pages : 157
Book Description
1 John H. Dodds The culture offragmen ts of plant tissue is not a particularly new science, in fact as long ago as 1893 Rechinger (1893) described the formation of callus on isolated fragments of stems and roots. The culture of plant tissues in vitro on a nutrient medium was performed by Haberlandt (1902), however, his attempts were unsuccessful because he chose too simple a medium that lacked critical growth factors. Over the last fifty years there has been a surge of development in plant tissue culture techniques and a host of techniques are now avail able (Dodds and Roberts, 1982). The major areas are as follows. Callus Culture Callus is a rather ill-dermed material. but is usually described as an un organised proliferating mass of tissue. Although callus cultures have a great deal of potential in the biotechnological aspects of tissue culture, i.e. secondary product formation, they are not very suitable for plant propagation. The key reason for their unsuitability is that genetic aber rations occur during mitotic divisions in callus growth (D'amato.l965). The aberrations can be of a major type, such as aneuploidy or endo reduplication. It follows therefore that the genetic status of the re generated plants is different from that of the parent type. In general terms this genetic instability is undesirable, but there are occasions when a callus stage can be purposely included to diversify the genetic base of the crop.
Publisher: Springer Science & Business Media
ISBN: 1468466917
Category : Science
Languages : en
Pages : 157
Book Description
1 John H. Dodds The culture offragmen ts of plant tissue is not a particularly new science, in fact as long ago as 1893 Rechinger (1893) described the formation of callus on isolated fragments of stems and roots. The culture of plant tissues in vitro on a nutrient medium was performed by Haberlandt (1902), however, his attempts were unsuccessful because he chose too simple a medium that lacked critical growth factors. Over the last fifty years there has been a surge of development in plant tissue culture techniques and a host of techniques are now avail able (Dodds and Roberts, 1982). The major areas are as follows. Callus Culture Callus is a rather ill-dermed material. but is usually described as an un organised proliferating mass of tissue. Although callus cultures have a great deal of potential in the biotechnological aspects of tissue culture, i.e. secondary product formation, they are not very suitable for plant propagation. The key reason for their unsuitability is that genetic aber rations occur during mitotic divisions in callus growth (D'amato.l965). The aberrations can be of a major type, such as aneuploidy or endo reduplication. It follows therefore that the genetic status of the re generated plants is different from that of the parent type. In general terms this genetic instability is undesirable, but there are occasions when a callus stage can be purposely included to diversify the genetic base of the crop.
Forest Service Research Accomplishments
Author:
Publisher:
ISBN:
Category : Forests and forestry
Languages : en
Pages : 180
Book Description
Publisher:
ISBN:
Category : Forests and forestry
Languages : en
Pages : 180
Book Description
The Effect of Two Nitrogen Sources on Red Pine (Pinus Resinosa Ait.) Growth
Author: John Lewis Creswell
Publisher:
ISBN:
Category : Nitrogen fertilizers
Languages : en
Pages : 136
Book Description
Publisher:
ISBN:
Category : Nitrogen fertilizers
Languages : en
Pages : 136
Book Description
Secondary Xylem Biology
Author: Yoon Soo Kim
Publisher: Academic Press
ISBN: 0128025298
Category : Science
Languages : en
Pages : 420
Book Description
Secondary Xylem Biology: Origins, Functions, and Applications provides readers with many lenses from which to understand the whole scope and breadth of secondary xylem. The book builds on a basic comprehension of xylem structure and development before delving into other important issues such as fungal and bacterial degradation and biofuel conversion. Chapters are written by recognized experts who have in-depth knowledge of their specific areas of expertise. It is a single information source containing high quality content, information, and knowledge related to the understanding of biology in woody plants and their applications. Offers an in-depth understanding of biology in woody plants Includes topics such as abiotic stresses on secondary xylem formation, fungal degradation of cell walls, and secondary xylem for bioconversion Progresses from basic details of wood structure, to dynamics of wood formation, to degradation
Publisher: Academic Press
ISBN: 0128025298
Category : Science
Languages : en
Pages : 420
Book Description
Secondary Xylem Biology: Origins, Functions, and Applications provides readers with many lenses from which to understand the whole scope and breadth of secondary xylem. The book builds on a basic comprehension of xylem structure and development before delving into other important issues such as fungal and bacterial degradation and biofuel conversion. Chapters are written by recognized experts who have in-depth knowledge of their specific areas of expertise. It is a single information source containing high quality content, information, and knowledge related to the understanding of biology in woody plants and their applications. Offers an in-depth understanding of biology in woody plants Includes topics such as abiotic stresses on secondary xylem formation, fungal degradation of cell walls, and secondary xylem for bioconversion Progresses from basic details of wood structure, to dynamics of wood formation, to degradation
Bibliography of Agriculture
Pathological and Regenerative Plant Anatomy
Author: Dr. Siegfried Fink
Publisher:
ISBN: 9783443140274
Category : Plant anatomy
Languages : en
Pages : 1116
Book Description
Publisher:
ISBN: 9783443140274
Category : Plant anatomy
Languages : en
Pages : 1116
Book Description