Author: Riad Zouheir BaalbakiPublisher:
ISBN:
Category : Soft wheat
Languages : en
Pages : 242
Book Description
The Effect of Seed Size, Density and Protein Content on Field Performance, Vigor and Storability of Two Winter Wheat Varieties
Author: Riad Zouheir BaalbakiPublisher:
ISBN:
Category : Soft wheat
Languages : en
Pages : 242
Book Description
Seed Quality
Author: Robert E GoughPublisher: CRC Press
ISBN: 1000111776
Category : Technology & Engineering
Languages : en
Pages : 408
Book Description
Seed Quality: Basic Mechanisms and Agricultural Implications focuses on various aspects of seed quality and integrates research at basic and applied levels, supporting high-quality seeds as the basis of higher agricultural productivity. With its clear perspective and interdisciplinary focus on basic and applied aspects of seed quality, this book is immensely useful to students and teachers in many agricultural and botanical disciplines. Because seed quality is a critical component in the economic considerations of the farmer and the seedman alike, Basra looks in-depth at these aspects of seed production: seed viability seed health seed vigor seed testing variety identification crop yield seed storage seed production seed deterioration seed treatments Seed quality is of international agronomic concern, and the recent upsurge of interest in seed quality has accentuated a new awareness regarding its importance in crop production. This book meets the need for information and could form the basis of long-range planning by policymakers on quality assurance and management programs and in the facilitation of international trade. Researchers, students, and teachers in many agricultural and botanical disciplines--seed science and technology in particular--will find this book to be of immense use. It can be used as a handbook for those involved in seed industry and seed testing services. It is recommended for international courses in seed science and technology and seed training programs.
Dissertation Abstracts International
Author: Publisher:
ISBN:
Category : Dissertations, Academic
Languages : en
Pages : 548
Book Description
Crop Physiology Abstracts
Author: Effects of Seed Specific Gravity and Seed Size on Vigor and Field Performance in Wheat Seed
Author: Juvent BaramburiyePublisher:
ISBN:
Category : Seed technology
Languages : en
Pages : 126
Book Description
American Doctoral Dissertations
Author: Publisher:
ISBN:
Category : Dissertation abstracts
Languages : en
Pages : 728
Book Description
Index to American Doctoral Dissertations
Author: Publisher:
ISBN:
Category : Dissertations, Academic
Languages : en
Pages : 1252
Book Description
Effect of Moisture Stress on Yield and Quality of Winter Wheat Seed
Author: Marcos Vinicius AssuncaoPublisher:
ISBN:
Category : Wheat
Languages : en
Pages : 216
Book Description
Two experiments were conducted to determine the effects of moisture stress on physiological changes that occur during the vegetative and reproductive stages of the wheat (Triticum aestivum L.) plant, and to relate these effects to seed yield, quality and performance. In a field experiment, different levels of moisture stress were obtained by establishing plots in two rainfall areas, and by planting on three different dates in the dryland area. Seed development and maturation occurred under extreme moisture stress in Moro (254mm annual rainfall), while stress at Corvallis (1020 mm annual rainfall) was low. Plants from the early fall planting were subjected to the most stress because of the greater fall growth which removed much of the soil moisture. Lowest seed yields occurred under the greatest moisture stress conditions, primarily because of a reduced number of seeds per spike. Seed size was the quality component most affected by moisture stress. Smaller seed size was associated with lower soil water potential, higher leaf area index during vegetative growth, and higher specific leaf weight and water soluble carbohydrate content of the plants after anthesis. Water soluble carbohydrate content was particularly high in the rachises of the most severely stressed plants, indicating a reduced rate of translocation to the developing seeds. Embryo weight was also reduced in the more stressed plants in proportioa to the reduction in seed weight. The protein contents of seeds from all three moisture stress levels at Moro were similar. Seeds developed under the most severe water stress had the highest respiratory quotient and lowest glutamic acid decarboxylase activity. The growth rate of seedlings produced by these seeds was 29% lower than that from seeds from the less stressed plots. A greenhouse experiment was conducted to study the effects of water stress under controlled conditions. Plants were grown under three moisture regimes (600, 300 and 150 ml water/pot/day) from the time awns were first visible on the main stem until maturity. Water-stressed plants had smaller leaf area and leaf dry weight, higher specific leaf weight, earlier leaf senescence, lower dry weight, and lower seed yield. On the other hand, water-stressed plants produced larger seeds, with heavier embryos, higher protein content, lower CO2 evolution and lower respiratory quotient. These seeds in turn produced seedlings with greater vigor in terms of seedling growth rate. Because of the compensation ability of the wheat plant, development of management practices to decrease certain yield components in favor of enhanced seed quality is worthy of further study.
Bibliography of Agriculture
Author: Contribution to Philippine Agricultural Modernization
Author: L. S. CabanillaPublisher:
ISBN:
Category : Agriculture and state
Languages : en
Pages : 286
Book Description