Faithin Omaha eBook Collection

Download or read book The Potential for Genetic Suppression of Insect Populations by Their Adaptations to Climate (Classic Reprint) written by Waldemar Klassen and published by Forgotten Books. This book was released on 2018-09-10 with total page 84 pages. Available in PDF, EPUB and Kindle. Book excerpt: Excerpt from The Potential for Genetic Suppression of Insect Populations by Their Adaptations to Climate Examination of cases 2-6 in table 41 shows that when a conditional lethal trait is deter mined by more than one gene, the trait may be expressed in a progressively higher proportion of individuals from generation to generation. Cases 7 - 15 show that when the release strain possesses more than one conditional lethal trait, the efficiency of suppression is progressively augmented in succeeding generations. If the conditional lethal traits were expressed in the last generation of the season, release ratios ranging from to would be adequate to decimate most populations with four genera tions per year. This would require releases ranging from 100 to 500 insects per acre when the natural population consists of 10 insects per acre. Higher ratios would be required if the species had fewer than four generations per year. In most instances these ratios would have to be two to five times higher to achieve the same suppression in the F2 as in the F4. 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.