Download or read book Improvement of Naturally Cross Pollinated Plants by Selection in Self Fertilized Lines 1 Production of Inbred Strains of Corn written by Donald Forsha Jones and published by . This book was released on 1925 with total page 70 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Improvement of Naturally Cross Pollinated Plants by Selection in Self Fertilized Lines written by Donald Forsha Jones and published by Forgotten Books. This book was released on 2017-10-28 with total page 78 pages. Available in PDF, EPUB and Kindle. Book excerpt: Excerpt from The Improvement of Naturally Cross-Pollinated Plants by Selection in Self-Fertilized Lines: I. The Production of Inbred Strains of Corn The results of previous investigations on inbreeding corn are reviewed to Show the development of the method of selection in self - fertilized lines. Four varieties of corn have been self-fertilized and selected for five generations. Eighty-six lines were started and twenty of these were lost or discarded. The method of procedure was to grow three progenies in each line and self-pollinate five of the most desirable appearing plants in the best progeny each year. A large number of clear - cut recessive abnormalities appeared during the course Of the inbreeding. In all except one case these were eliminated by the fifth generation. NO significant difference in yield was found between segregating and non -segregating progenies in lines Showing recessive abnormal ities in the previous generation. Also lines having recessive abnormalities at the start showed no greater reduction, 1n yield during the five generations than lines that were free from them throughout the experiment. All lines showed a marked reduction in yield and a Slowing down of the rate Of growth. Although great differences were Shown, no lines were as productive as the original variety. NO appreciable correlation was found between the characters of the seed ear, weight Of seed, Size Of seedling, or the appearance of the plants at pollinating time and the production Of grain in the same genera tion. Some correlation in certain characters was found between the first and last generations, particularly in height of plant and in per cent. Of moldy ears. Less association was Shown in amount of tillering and in smut infection, while in productiveness practically no relation was found, showing that good and poor yielding strains may come from productive or unproductive plants at the start. 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.
Download or read book The Improvement of Naturally Cross pollinated Plants by Selection in Self fertilized Lines written by Donald Forsha Jones and published by . This book was released on 1940 with total page 347 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Improvement of Naturally Cross Pollinated Plants by Selection in Self Fertilized Lines Vol 3 written by Donald Forsha Jones and published by Forgotten Books. This book was released on 2017-10-29 with total page 28 pages. Available in PDF, EPUB and Kindle. Book excerpt: Excerpt from The Improvement of Naturally Cross-Pollinated Plants by Selection in Self-Fertilized Lines, Vol. 3: Investigations With Vegetatively Propagated Fruits Other investigators have Obtained similar results. The prospects of Obtaining valuable new fruits from crosses of raspberries and blackberries are not very good. It would seem now more worthwhile to grow seedlings of the loganberry types already available, subjecting them to the condi tions prevailing in this part of the country. There is a possibility that some of them would be winter-hardy and as productive in this part of the country as the varieties now grown in the West. 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.
Download or read book The Improvement of Naturally Cross Pollinated Plants by Selection in Self Fertilized Lines Vol 2 written by Donald Forsha Jones and published by Forgotten Books. This book was released on 2018-01-07 with total page 48 pages. Available in PDF, EPUB and Kindle. Book excerpt: Excerpt from The Improvement of Naturally Cross-Pollinated Plants by Selection in Self-Fertilized Lines, Vol. 2: The Testing and Utilization of Inbred Strains of Corn The application of inbreeding to the improvement of corn has received an increasing amount of attention since its inception a quarter-oi a century ago. In 1932 more than acres of corn were planted in this country with seed that had resulted, in one way or another, from the crossing of inbred plants. Although the production of hybrid corn seed seems to be well started in commercial practice, the development, testing and most advantageous use of inbred strains still present many problems. The first attempt to account for the increased growth immediately resulting from cross-fertilization may be called the physiological hypothesis of hybrid stimulation. In this it was thought that the bringing together of germinally diverse elements by crossing different lines, generated the growth activity commonly referred to as hybrid vigor. Conversely, the reduced size and slower growth rate of inbred lines was considered the natural result as the germinal constitution is simplified. 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.
Download or read book Improvement of Naturally Cross Pollinated Plants by Selection in Self Fertilized Lines 2 the Testing and Utilization of Inbred Strains of Corn written by Connecticut Agricultural Experiment Station and published by . This book was released on 1935 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Improvement of Naturally Cross Pollinated Plants by Selection in Self Fertilized Lines 3 Investigations With Vegetatively Propagated Fruits written by Connecticut Agricultural Experiment Station and published by . This book was released on 1940 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Improvement of Naturally Cross pollinated Plants by Selection in Self fertilized Lines written by Connecticut Agricultural Experiment Station and published by . This book was released on 1924 with total page 88 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Improvement of Naturally Cross pollinated Plants by Selection in Self fertilized Lines written by Donald Forsha Jones and published by . This book was released on 1935 with total page 691 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Improvement of Naturally Cross pollinated Plants by Selection in Self fertilized Lines written by W Ralph (Willard Ralph) Singleton and published by Hassell Street Press. This book was released on 2021-09-09 with total page 48 pages. Available in PDF, EPUB and Kindle. Book excerpt: This work has been selected by scholars as being culturally important and is part of the knowledge base of civilization as we know it. This work is in the public domain in the United States of America, and possibly other nations. Within the United States, you may freely copy and distribute this work, as no entity (individual or corporate) has a copyright on the body of the work. Scholars believe, and we concur, that this work is important enough to be preserved, reproduced, and made generally available to the public. To ensure a quality reading experience, this work has been proofread and republished using a format that seamlessly blends the original graphical elements with text in an easy-to-read typeface. We appreciate your support of the preservation process, and thank you for being an important part of keeping this knowledge alive and relevant.
Download or read book The Improvement of Naturally Cross pollinated Plants by Selection in Self fertilized Lines written by Willard Ralph Singleton and published by . This book was released on 1945 with total page 498 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Breeding Crop Plants written by Herbert Kendall Hayes and published by . This book was released on 1927 with total page 474 pages. Available in PDF, EPUB and Kindle. Book excerpt: The founders of the art of plant breeding; The relation of certain biologie principles to plant breeding; The value of crop improvement in relation to a more efficient agriculture; Plant genetics; Biometrical methods; Field-plot technic; Soil heterogeneity; Climatic variations; Summary of field-plot technic; The mode of reproduction in relation to breeding; Naturally self-pollinated plants; Often cross-pollinated plants; Naturally cross-pollinated plants; Controlling pollination; Some results of selection with self-fertilized crops; Some results of crossing as a means of improving self-fertilized crops; Methods of breeding small grains; Classification and inheritance in wheat; Classification and inheritance of small grains other than wheat; Cowpeas, soybeans, and velvet beans; Flax and tobacco; Cotton and sorghum; Inheritance in maize; Maize breeding; Grasses, clover, and alfalfa; Potato improvement; Breedng of vegetables; Fruit breeding; Farmers methods of producing pure seeds.
Download or read book Methods of Plant Breeding written by Herbert Kendall Hayes and published by . This book was released on 1942 with total page 456 pages. Available in PDF, EPUB and Kindle. Book excerpt: The role of plant breeding; The genetic and cytogenetic basis of plant breeding; Mode of reproduction in relation to breeding methods; Technics in selfing and crossing; The pure-line method of breeding naturally self-pollinated plants; Hybridization as a method of improving self-pollinated plants; The blackgross method of plant breeding; Breeding for disease and insect ressistence; Inheritance in wheat; Inheritance in Oats; Inheritance in Barley; Inheritance in Flax.
Download or read book Journal of the American Society of Agronomy written by American Society of Agronomy and published by . This book was released on 1926 with total page 1216 pages. Available in PDF, EPUB and Kindle. Book excerpt: An international journal of agriculture and natural resource sciences.
Download or read book Methods of Plant Breeding written by Herbert Kendall Hayes and published by . This book was released on 1955 with total page 576 pages. Available in PDF, EPUB and Kindle. Book excerpt: The role of plant breeding; The genetic and cytogenetic basis of plant breeding; Heterosis; Mode of reproduction in relation to breeding methods; Techniques in selfing and crossing; The pure-line method of breeding naturally self-pollinated plants; Hybridization as a method of improving self-fertilized plants; The backcross method of plant breeding; Breeding for disease and insect resistance; Special techniques; Inheritance in small grains and flax; Cotton and sorghum breeding; Development of methods of corn breeding; Inheritance in maize; Forage-crop improvement; Breeding other cross-pollinated plants; Seed production; Some commonly used measures of type and variability; Correlation and regression in relation to plant breeding; Chi-squre testes; Field-plot technique; Experimental designs and statistical methods for simple plant-breeding experiments; Heritability.
Download or read book Report written by Connecticut Agricultural Experiment Station and published by . This book was released on 1925 with total page 696 pages. Available in PDF, EPUB and Kindle. Book excerpt: Vols. 41- 1916/17- include the Station's Bulletin and other of Its publications which are also issued separately.
Download or read book Report of the Connecticut Agricultural Experiment Station New Haven Conn for the Year written by Connecticut Agricultural Experiment Station and published by . This book was released on 1925 with total page 716 pages. Available in PDF, EPUB and Kindle. Book excerpt:
