Leafy Salad Vegetables
Leafy salad vegetables are among the most universally used vegetable crops grown today. Their prominence as important crops has been heightened through the last several decades due to an awareness on the part of consumers of the nutrient, and other obviou
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LEAFY SALAD VEGETABLES
Edward
J.
Ryder, Ph.D.
Plant Geneticist USDA, SEA-AR, Western Region U.S. Agricultural Research Station Salinas, California
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AVI PUBLISHING COMPANY, INC. Westport, Connecticut
© Copyright 1979 by
Softcover reprint of the hardcover 151 edition 1979 THE AVI PUBLISHING COMPANY, INC. Westport, Conn~ticut
All rights reserved. No part of this work covered by the copyright hereon may be reproduced or used in any form or by any means-graphic, electronic, or mechanical, including photocopying, recording, taping, or information storage and retrieval systems- without written permission of the publisher.
Library of Congress Cataloging In Publication Data Ryder, Edward J , 1929Leafy salad 'vegetables. Includes index . 1. Salad greens. I. Title. SB35l.S25R92 635'.5 79-18713 ISBN 978·94·011 ·9701-4 ISBN 978·94·011·9699-4 (eBook) DOl 10.1007/978-94-011·9699-4
Preface
Leafy salad vegetables are among the most universally used vegetable crops grown today. Their prominence as important crops has been heightened through the last several decades due to an awareness on the part of consumers of the nutrient, and other obvious values they offer to the diet as "fresh greens" which, at least in the United States, have become a daily table staple. As a result, acreage planted to leafy salad vegetable crops has expanded to a remarkable degree over the past few decades, making these crops an important segment of the agricultural and marketing industries. Published information on leafy salad vegetables has been-and iswidespread and scattered. This book brings together all up-to-date information and is amply referenced throughout for further study and information. Similarities and differences among the species are discussed and provide insight into the place these species hold in the world cropping system and in the human diet. This approach in text organization was made in an effort to be helpful to the widest type of readership: professional researchers and teachers, graduate and undergraduate students, extension workers, farmers and other members of the horticultural community, and, perhaps, even lay readers who are the ultimate consumers. Leafy salad vegetables seemed to be a natural crop grouping, having a number of common characteristics. The crops discussed, however, do not form an exhaustive list. There is no discussion of primarily tropical leafy vegetables, which were too far beyond my area of knowledge and which are covered in other books. The discussion of Brassica oleracea is limited to cabbage, but could conceivably have included some of the other forms. For various reasons, primarily of time, these and other omissions were made, but will hopefully not seriously affect the value of the book. I am indebted to colleagues in USDA, State Experiment Stations and seed companies in the United States and in research centers in England, France and Holland for pictures and information about the various leafy v
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LEAFY SALAD VEGETABLES
salad vegetables. In particular, I wish to acknowledge the h
