This is a reproduction of a book published before 1923. This book may have occasional imperfections such as missing or blurred pages, poor pictures, errant marks, etc. that were either part of the original artifact, or were introduced by the scanning process. We believe this work is culturally important, and despite the imperfections, have elected to bring it back into print as part of our continuing commitment to the preservation of printed works worldwide. We appreciate your understanding of the imperfections in the preservation process, and hope you enjoy this valuable book. ++++ The below data was compiled from various identification fields in the bibliographic record of this title. This data is provided as an additional tool in helping to ensure edition identification: ++++ First Generation Crosses Between Standard Minnesota Corn Varieties, Volumes 181-194; Volume 183 Of Bulletin (University Of Minnesota. Agricultural Experiment Station) Herbert Kendall Hayes, Peter John Olson University of Minnesota, Agricultural Experiment Station, 1919 Technology & Engineering; Agriculture; Agronomy; Crop Science; Corn; Hybrid corn; Technology & Engineering / Agriculture / Agronomy / Crop Science

This scarce antiquarian book is a selection from Kessinger Publishing's Legacy Reprint Series. Due to its age, it may contain imperfections such as marks, notations, marginalia and flawed pages. Because we believe this work is culturally important, we have made it available as part of our commitment to protecting, preserving, and promoting the world's literature. Kessinger Publishing is the place to find hundreds of thousands of rare and hard-to-find books with something of interest for everyone!

This is a reproduction of a book published before 1923. This book may have occasional imperfections such as missing or blurred pages, poor pictures, errant marks, etc. that were either part of the original artifact, or were introduced by the scanning process. We believe this work is culturally important, and despite the imperfections, have elected to bring it back into print as part of our continuing commitment to the preservation of printed works worldwide. We appreciate your understanding of the imperfections in the preservation process, and hope you enjoy this valuable book. ++++ The below data was compiled from various identification fields in the bibliographic record of this title. This data is provided as an additional tool in helping to ensure edition identification: ++++ Breeding Small Grains In Minnesota, Volumes 181-194; Volume 182 Of Bulletin (University Of Minnesota. Agricultural Experiment Station) Herbert Kendall Hayes University Farm, 1919 Technology & Engineering; Agriculture; Agronomy; Crop Science; Grain; Technology & Engineering / Agriculture / Agronomy / Crop Science

BREEDING CROP PLANTS BY HERBERT KENDALL HAYES PROFESSOR OF PLANT BREEDING, - PREFACE Since the early development of agriculture by primitive peoples, selection of seed for planting has been an important feature of agricultural practice. While many of our better varieties or strains of crop plants have originated as chance seedlings orfrom selections made bymen who lacked a knowledge of the laws of heredity, there has been a growing appreciation in recent years of the value of training students for the occupa- tion of plant breeding. Studies in crop genetics carried on since 1900, as well as studies in field plot technic, have helped in a large measure to standardize methods of breeding. Information regarding the mode of inheritance of particular characters as well as a better knowledge of the wild relatives of our crop plants is con- stantly being obtained. The purpose of this book is to present fundamental principles of crop breeding and to summarize known facts regarding the mode of inheritance of many of the important characters of crop plants. Much of the material here presented has been used in courses in crop breeding which have been given in recent years at the College of Agriculture, of Minnesota. University Suggestions from others in relation to methods of treatment of various subjects have been of material value. Particular mention should be made of the helpful advice of Dr. M. J. Dorsey regarding the chapters on Plant Genetics and Fruit Breeding of F. A. Krantz regarding the chapter on Potato Breeding, and of John Bushnell and W. T. Tapley regarding the chapter on Vegetable Breeding. We are also indebted to Miss Alice McFeely, Bulletin Editor, for many suggestions regardingpresentation and for assistance in proofreading to Mr. A. N. Wilcox for assistance in proofreading to Miss L. Mae Centerwall for help in obtaining a considerable number of publications from other libraries and to Miss Alma Schweppe for checking the literature citations. Pre- vious summaries of certain phases of plant breeding methods were IX

This is an EXACT reproduction of a book published before 1923. This IS NOT an OCR'd book with strange characters, introduced typographical errors, and jumbled words. This book may have occasional imperfections such as missing or blurred pages, poor pictures, errant marks, etc. that were either part of the original artifact, or were introduced by the scanning process. We believe this work is culturally important, and despite the imperfections, have elected to bring it back into print as part of our continuing commitment to the preservation of printed works worldwide. We appreciate your understanding of the imperfections in the preservation process, and hope you enjoy this valuable book.

BREEDING CROP PLANTS BY HERBERT KENDALL HAYES PROFESSOR OF PLANT BREEDING, - PREFACE Since the early development of agriculture by primitive peoples, selection of seed for planting has been an important feature of agricultural practice. While many of our better varieties or strains of crop plants have originated as chance seedlings orfrom selections made bymen who lacked a knowledge of the laws of heredity, there has been a growing appreciation in recent years of the value of training students for the occupa- tion of plant breeding. Studies in crop genetics carried on since 1900, as well as studies in field plot technic, have helped in a large measure to standardize methods of breeding. Information regarding the mode of inheritance of particular characters as well as a better knowledge of the wild relatives of our crop plants is con- stantly being obtained. The purpose of this book is to present fundamental principles of crop breeding and to summarize known facts regarding the mode of inheritance of many of the important characters of crop plants. Much of the material here presented has been used in courses in crop breeding which have been given in recent years at the College of Agriculture, of Minnesota. University Suggestions from others in relation to methods of treatment of various subjects have been of material value. Particular mention should be made of the helpful advice of Dr. M. J. Dorsey regarding the chapters on Plant Genetics and Fruit Breeding of F. A. Krantz regarding the chapter on Potato Breeding, and of John Bushnell and W. T. Tapley regarding the chapter on Vegetable Breeding. We are also indebted to Miss Alice McFeely, Bulletin Editor, for many suggestions regardingpresentation and for assistance in proofreading to Mr. A. N. Wilcox for assistance in proofreading to Miss L. Mae Centerwall for help in obtaining a considerable number of publications from other libraries and to Miss Alma Schweppe for checking the literature citations. Pre- vious summaries of certain phases of plant breeding methods were IX