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This historic book may have numerous typos and missing text. Purchasers can download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated.1918 Excerpt: ... GROUP CLASSIFICATION AND VARIETAL DESCRIPTIONS OF SOME AMERICAN POTATOES. By William Stuart, Horticulturist, Horticultural and Pomological Investigations. INTRODUCTION. To those familiar with the present almost hopeless state of potato nomenclature it is apparent that there is a growing need for some simple and fairly reliable method by which the student and grower can recognize varieties well enough at least to place them in the family or group to which they belong. The classification of varieties into groups or families is admittedly the first step toward a satisfactory or intelligent study of the varieties themselves. The increasing necessity for such study is clearly demonstrated by the large number of old varieties offered to the public each year under the guise of new names. This practice has naturally led to much confusion, and the task of restoring order out of the present chaos is a difficult one. EARLY EFFORTS AT CLASSIFICATION. One of the earliest and most careful attempts to classify varieties into groups which has yet come to the writer's notice is that of Vilmorin,1 who in 1882 and again in 1886 and 1902 published the results of many years' observations of a very complete collection of potato varieties. These varieties were grouped into 12 classes in 1886, and the 12 classes were further subdivided into 30 sections. In the 1902 edition only 9 classes were made; but these 9 classes were subdivided into 40 sections. The classification of the main groups is based on the color and shape of the tubers; that of the sections is based on the color, shape, and size of the tubers and the depth of the eyes, the color of the sprouts in the dark, and the color of the flowers. 1 Vilmorln, C. P. H. L. de. Catalogue MSthodique et Synonymique des Principales V...
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This historic book may have numerous typos and missing text. Purchasers can download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated.1918 Excerpt: ... GROUP CLASSIFICATION AND VARIETAL DESCRIPTIONS OF SOME AMERICAN POTATOES. By William Stuart, Horticulturist, Horticultural and Pomological Investigations. INTRODUCTION. To those familiar with the present almost hopeless state of potato nomenclature it is apparent that there is a growing need for some simple and fairly reliable method by which the student and grower can recognize varieties well enough at least to place them in the family or group to which they belong. The classification of varieties into groups or families is admittedly the first step toward a satisfactory or intelligent study of the varieties themselves. The increasing necessity for such study is clearly demonstrated by the large number of old varieties offered to the public each year under the guise of new names. This practice has naturally led to much confusion, and the task of restoring order out of the present chaos is a difficult one. EARLY EFFORTS AT CLASSIFICATION. One of the earliest and most careful attempts to classify varieties into groups which has yet come to the writer's notice is that of Vilmorin,1 who in 1882 and again in 1886 and 1902 published the results of many years' observations of a very complete collection of potato varieties. These varieties were grouped into 12 classes in 1886, and the 12 classes were further subdivided into 30 sections. In the 1902 edition only 9 classes were made; but these 9 classes were subdivided into 40 sections. The classification of the main groups is based on the color and shape of the tubers; that of the sections is based on the color, shape, and size of the tubers and the depth of the eyes, the color of the sprouts in the dark, and the color of the flowers. 1 Vilmorln, C. P. H. L. de. Catalogue MSthodique et Synonymique des Principales V...
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