Author: Hugo de Vries
Publisher:
ISBN:
Category : Evolution
Languages : en
Pages : 874
Book Description
From time to time the idea has suggested itself to some of the best authorities on the amelioration of plants, that this atavism was not due to an innate tendency, but, in many cases at least, was produced by crosses between neighboring varieties. It is especially owing to Verlot that this side of the question was brought forward. But breeders as a rule have not attached much importance to this supposition, chiefly because of the great practical difficulties attending any attempt to guard the species of the larger cultures against intermixture with other varieties. Bees and humble-bees fly from bud to bud, and carry the pollen from one sort to another, and separation by great distances would be required to avoid this source of impurity. Annotation Published: February 2014.
Species and Varieties
Author: Hugo de Vries
Publisher:
ISBN:
Category : Evolution
Languages : en
Pages : 874
Book Description
From time to time the idea has suggested itself to some of the best authorities on the amelioration of plants, that this atavism was not due to an innate tendency, but, in many cases at least, was produced by crosses between neighboring varieties. It is especially owing to Verlot that this side of the question was brought forward. But breeders as a rule have not attached much importance to this supposition, chiefly because of the great practical difficulties attending any attempt to guard the species of the larger cultures against intermixture with other varieties. Bees and humble-bees fly from bud to bud, and carry the pollen from one sort to another, and separation by great distances would be required to avoid this source of impurity. Annotation Published: February 2014.
Publisher:
ISBN:
Category : Evolution
Languages : en
Pages : 874
Book Description
From time to time the idea has suggested itself to some of the best authorities on the amelioration of plants, that this atavism was not due to an innate tendency, but, in many cases at least, was produced by crosses between neighboring varieties. It is especially owing to Verlot that this side of the question was brought forward. But breeders as a rule have not attached much importance to this supposition, chiefly because of the great practical difficulties attending any attempt to guard the species of the larger cultures against intermixture with other varieties. Bees and humble-bees fly from bud to bud, and carry the pollen from one sort to another, and separation by great distances would be required to avoid this source of impurity. Annotation Published: February 2014.
Species and Varieties
Author: Hugo de Vries
Publisher: IndyPublish.com
ISBN:
Category : Science
Languages : en
Pages : 980
Book Description
Publisher: IndyPublish.com
ISBN:
Category : Science
Languages : en
Pages : 980
Book Description
Species and Varieties, Their Origin by Mutation
Author: Hugo De Vries
Publisher: Arkose Press
ISBN: 9781343779761
Category :
Languages : en
Pages : 884
Book Description
This work has been selected by scholars as being culturally important, and is part of the knowledge base of civilization as we know it. This work was reproduced from the original artifact, and remains as true to the original work as possible. Therefore, you will see the original copyright references, library stamps (as most of these works have been housed in our most important libraries around the world), and other notations in the work.This work is in the public domain in the United States of America, and possibly other nations. Within the United States, you may freely copy and distribute this work, as no entity (individual or corporate) has a copyright on the body of the work.As a reproduction of a historical artifact, this work may contain missing or blurred pages, poor pictures, errant marks, etc. Scholars believe, and we concur, that this work is important enough to be preserved, reproduced, and made generally available to the public. We appreciate your support of the preservation process, and thank you for being an important part of keeping this knowledge alive and relevant.
Publisher: Arkose Press
ISBN: 9781343779761
Category :
Languages : en
Pages : 884
Book Description
This work has been selected by scholars as being culturally important, and is part of the knowledge base of civilization as we know it. This work was reproduced from the original artifact, and remains as true to the original work as possible. Therefore, you will see the original copyright references, library stamps (as most of these works have been housed in our most important libraries around the world), and other notations in the work.This work is in the public domain in the United States of America, and possibly other nations. Within the United States, you may freely copy and distribute this work, as no entity (individual or corporate) has a copyright on the body of the work.As a reproduction of a historical artifact, this work may contain missing or blurred pages, poor pictures, errant marks, etc. Scholars believe, and we concur, that this work is important enough to be preserved, reproduced, and made generally available to the public. We appreciate your support of the preservation process, and thank you for being an important part of keeping this knowledge alive and relevant.
Species and Varieties, Their Origin by Mutation
Author: Hugo de Vries
Publisher:
ISBN: 9780895610164
Category : Evolution (Biology)
Languages : en
Pages : 847
Book Description
Publisher:
ISBN: 9780895610164
Category : Evolution (Biology)
Languages : en
Pages : 847
Book Description
Species and Varieties
Author: Hugo de Vries
Publisher:
ISBN:
Category : Evolution
Languages : en
Pages : 894
Book Description
Publisher:
ISBN:
Category : Evolution
Languages : en
Pages : 894
Book Description
On the Tendency of Species to Form Varieties
Author: Charles Darwin
Publisher:
ISBN:
Category :
Languages : en
Pages : 0
Book Description
Publisher:
ISBN:
Category :
Languages : en
Pages : 0
Book Description
On the Tendency of Species to Form Varieties
Author: Charles Darwin
Publisher:
ISBN:
Category :
Languages : en
Pages : 18
Book Description
Publisher:
ISBN:
Category :
Languages : en
Pages : 18
Book Description
Species and Varieties
Author: Hugo de Vries (Botaniker, Niederlande)
Publisher:
ISBN: 9780824013875
Category :
Languages : en
Pages : 0
Book Description
Publisher:
ISBN: 9780824013875
Category :
Languages : en
Pages : 0
Book Description
SPECIES & VARIETIES THEIR ORIG
Author: Hugo De 1848-1935 Vries
Publisher: Wentworth Press
ISBN: 9781372636240
Category : History
Languages : en
Pages : 880
Book Description
This work has been selected by scholars as being culturally important, and is part of the knowledge base of civilization as we know it. This work was reproduced from the original artifact, and remains as true to the original work as possible. Therefore, you will see the original copyright references, library stamps (as most of these works have been housed in our most important libraries around the world), and other notations in the work. This work is in the public domain in the United States of America, and possibly other nations. Within the United States, you may freely copy and distribute this work, as no entity (individual or corporate) has a copyright on the body of the work. As a reproduction of a historical artifact, this work may contain missing or blurred pages, poor pictures, errant marks, etc. Scholars believe, and we concur, that this work is important enough to be preserved, reproduced, and made generally available to the public. We appreciate your support of the preservation process, and thank you for being an important part of keeping this knowledge alive and relevant.
Publisher: Wentworth Press
ISBN: 9781372636240
Category : History
Languages : en
Pages : 880
Book Description
This work has been selected by scholars as being culturally important, and is part of the knowledge base of civilization as we know it. This work was reproduced from the original artifact, and remains as true to the original work as possible. Therefore, you will see the original copyright references, library stamps (as most of these works have been housed in our most important libraries around the world), and other notations in the work. This work is in the public domain in the United States of America, and possibly other nations. Within the United States, you may freely copy and distribute this work, as no entity (individual or corporate) has a copyright on the body of the work. As a reproduction of a historical artifact, this work may contain missing or blurred pages, poor pictures, errant marks, etc. Scholars believe, and we concur, that this work is important enough to be preserved, reproduced, and made generally available to the public. We appreciate your support of the preservation process, and thank you for being an important part of keeping this knowledge alive and relevant.
On the Tendency of Species to Form Varieties
Author: Alfred Russel Wallace
Publisher: Good Press
ISBN:
Category : Nature
Languages : en
Pages : 29
Book Description
"On the Tendency of Species to form Varieties; and on the Perpetuation of Varieties and Species by Natural Means of Selection" is the name of a journal article that includes two scientific papers that were jointly presented to the Linnean Society of London on July 1st, 1858. The piece also includes an introduction by Joseph Dalton Hooker and Charles Lyell, as well as an abstract of a letter that Darwin wrote to Asa Gray. The Darwin-Wallace hypothesis of evolution through natural selection was initially introduced in the paper, which first appeared in print on August 20, 1858. Darwin was inspired by the papers' presentations to create an abbreviated "abstract" of his "huge book" on Natural Selection. On the Origin of Species, a version of this was released in November 1859.
Publisher: Good Press
ISBN:
Category : Nature
Languages : en
Pages : 29
Book Description
"On the Tendency of Species to form Varieties; and on the Perpetuation of Varieties and Species by Natural Means of Selection" is the name of a journal article that includes two scientific papers that were jointly presented to the Linnean Society of London on July 1st, 1858. The piece also includes an introduction by Joseph Dalton Hooker and Charles Lyell, as well as an abstract of a letter that Darwin wrote to Asa Gray. The Darwin-Wallace hypothesis of evolution through natural selection was initially introduced in the paper, which first appeared in print on August 20, 1858. Darwin was inspired by the papers' presentations to create an abbreviated "abstract" of his "huge book" on Natural Selection. On the Origin of Species, a version of this was released in November 1859.