Author: United States Department Of Agriculture

Publisher: Forgotten Books

Published: 2018-03-20

Total Pages: 32

ISBN-13: 9780666888303

Excerpt from 1976 Virus Tolerance Ratings for Corn Strains Grown in the Lower Corn Belt: In Cooperation With Missouri Agricultural Experiment Station and Ohio Agricultural Research and Development Center; Ars-Nc-53, May, 1977 To measure corn tolerance to natural virus infection by maize dwarf mosaic and maize chlorotic dwarf, breeders and researchers grew selected corn strains in test plots in lower parts of the Corn Belt. The results of these tests are given in this publication in two parts - corn strains grown in Missouri and those grown in Ohio. Observers of the individual corn plants rated symptoms on a scale from 1 (no virus symptoms) to 9 (complete susceptibility). Infections varied in intensity between hybrids and inbreds. At all test locations, johnsongrass, an alternate host, was abundant near the plots. The rating variations within tests of inbreds and single cross and double cross hybrids are shown tables in this publication. About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works.