Excerpt from Multiple Screening of Corn Introductions for Resistance to Diseases and Insects To locate genes for resistance, many screening projects are underway. However, collections of early and even recent introductions remain to be systematically screened. Of approximately corn accessions introduced in the past 60 years, there are viable seeds of about The screening of such a large number for several important corn diseases and insects, when done by conventional methods, is cumbersome. Even over a long period, the appearance of new pathogens, new races of pathogens, or new insects can necessitate frequent rescreening of all material. New and more rapid techniques are required. Furthermore, in searching for sources of multiple resistance, it is necessary to screen the same Species for resistance to several patho gens and insects simultaneously. 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.