Clark Jacob Allen (105 results)

Condition: New.

PAP. Condition: New. New Book. Shipped from UK. Established seller since 2000.

PAP. Condition: New. New Book. Shipped from UK. Established seller since 2000.

PAP. Condition: New. New Book. Shipped from UK. Established seller since 2000.

PAP. Condition: New. New Book. Shipped from UK. Established seller since 2000.

PAP. Condition: New. New Book. Shipped from UK. Established seller since 2000.

Condition: New.

PAP. Condition: New. New Book. Shipped from UK. Established seller since 2000.

PAP. Condition: New. New Book. Shipped from UK. Established seller since 2000.

PAP. Condition: New. New Book. Shipped from UK. Established seller since 2000.

PAP. Condition: New. New Book. Shipped from UK. Established seller since 2000.

Condition: New.

PAP. Condition: New. New Book. Shipped from UK. Established seller since 2000.

HRD. Condition: New. New Book. Shipped from UK. Established seller since 2000.

HRD. Condition: New. New Book. Shipped from UK. Established seller since 2000.

HRD. Condition: New. New Book. Shipped from UK. Established seller since 2000.

HRD. Condition: New. New Book. Shipped from UK. Established seller since 2000.

HRD. Condition: New. New Book. Shipped from UK. Established seller since 2000.

HRD. Condition: New. New Book. Shipped from UK. Established seller since 2000.

HRD. Condition: New. New Book. Shipped from UK. Established seller since 2000.

HRD. Condition: New. New Book. Shipped from UK. Established seller since 2000.

HRD. Condition: New. New Book. Shipped from UK. Established seller since 2000.

HRD. Condition: New. New Book. Shipped from UK. Established seller since 2000.

HRD. Condition: New. New Book. Shipped from UK. Established seller since 2000.

HRD. Condition: New. New Book. Shipped from UK. Established seller since 2000.

HRD. Condition: New. New Book. Shipped from UK. Established seller since 2000.

HRD. Condition: New. New Book. Shipped from UK. Established seller since 2000.

Paperback. Condition: New. Print on Demand. This book delves into the improvement of a spring wheat strain known as Ghirka, which is both productive and drought-resistant. The author explores the wheat's history, yielding capacity, and quality, offering insights on how selective breeding can enhance these traits. The book also examines the broader context of wheat cultivation in the Great Plains area and discusses the challenges of adapting wheat varieties to specific geographical and climatic conditions. Through a detailed analysis of experimental data, the author demonstrates the progress made in improving Ghirka's yield and quality, showcasing the potential of pure-line selection in crop improvement. This book provides valuable information for farmers, researchers, and anyone interested in the science and practice of wheat cultivation, offering practical guidance and insights into the complexities of wheat breeding and adaptation. This book is a reproduction of an important historical work, digitally reconstructed using state-of-the-art technology to preserve the original format. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in the book. print-on-demand item.…

Paperback. Condition: New. Print on Demand. This book summarizes the history of winter wheat crop loss and the development of winter-hardy wheat strains to address the issue. The author provides comparative data on the survival rates of 45 winter wheat and hybrid strains across six growing seasons. The book begins with the historical importance of winter wheat in the United States. The author then discusses the causes of winter wheat loss, including freezing temperatures, and explores the strategies farmers have used to reduce losses. The author explores the development of winter-hardy wheat strains by plant scientists and breeders by crossing hardier strains with commonly grown strains. He shares the results of the six seasons of comparative survival rate testing conducted by the United States Department of Agriculture and offers conclusions about the hardiest strains. The book concludes with a discussion of the ongoing work to improve winter wheat hardiness and reduce crop loss. This book is a reproduction of an important historical work, digitally reconstructed using state-of-the-art technology to preserve the original format. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in the book. print-on-demand item. …

Taschenbuch. Condition: Neu. Neuware - 'The Common White Wheats' is a detailed study of various common white wheat varieties, offering comprehensive insights into their agronomic characteristics, cultivation, and uses. Authored by Jacob Allen Clark, John Holmes Martin, and Clyde Evert Leighty, this work is an invaluable resource for agricultural scientists, farmers, and students interested in understanding the nuances of wheat production. The book explores the different types of white wheat, providing detailed descriptions and comparative analyses. Its enduring value lies in its thoroughness and practical applications, making it a key reference for anyone involved in cereal crop research and cultivation. Readers will gain a deeper understanding of the qualities that define common white wheats and their significance in global agriculture.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 was reproduced from the original artifact, and remains as true to the original work as possible. Therefore, you will see the original copyright references, library stamps (as most of these works have been housed in our most important libraries around the world), and other notations in the work.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.As a reproduction of a historical artifact, this work may contain missing or blurred pages, poor pictures, errant marks, etc. Scholars believe, and we concur, that this work is important enough to be preserved, reproduced, and made generally available to the public. We appreciate your support of the preservation process, and thank you for being an important part of keeping this knowledge alive and relevant.…