richey frederick willier (2 risultati)

Paperback. Condizione: New. Print on Demand. This book explores the relationship between seed ear characteristics and the productivity of corn across different varieties and environments. The author utilizes statistical analyses to examine correlations among eight key ear characters and yield, revealing trends and patterns. Despite the complexity of the interactions, the author identifies several consistent relationships, including positive correlations between yield and weight of ear and length of ear and negative correlations between yield and number of rows and number of kernels per row. These findings challenge the traditional emphasis on tight-fitting kernels and suggest that selection for larger ears with proportionately heavy cobs and fewer rows of wide, thick kernels can be a more effective strategy for obtaining a supply of good seed for general planting. The book offers valuable insights for corn breeders and farmers seeking to improve the productivity of their crops. 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.

LeatherBound. Condizione: New. BOOKS ARE EXEMPT FROM IMPORT DUTIES AND TARIFFS; NO EXTRA CHARGES APPLY. LeatherBound edition. Condition: New. Reprinted from 1925 edition. Leather Binding on Spine and Corners with Golden leaf printing on spine. Bound in genuine leather with Satin ribbon page markers and Spine with raised gilt bands. A perfect gift for your loved ones. Pages: 26 NO changes have been made to the original text. This is NOT a retyped or an ocr'd reprint. Illustrations, Index, if any, are included in black and white. Each page is checked manually before printing. As this print on demand book is reprinted from a very old book, there could be some missing or flawed pages, but we always try to make the book as complete as possible. Fold-outs, if any, are not part of the book. If the original book was published in multiple volumes then this reprint is of only one volume, not the whole set. Sewing binding for longer life, where the book block is actually sewn (smythe sewn/section sewn) with thread before binding which results in a more durable type of binding. Pages: 26 Volume no.1321.