Now showing items 1-10 of 30
Utilizing wild grass biodiversity in wheat improvement: 15 years of wide cross research at CIMMYT
For the first time, this report brings together detailed accounts of new knowledge and techniques developed through wheat wide crosses research at CIMMYT since this work was initiated in 1979. Beginning with a summary of ...
The bacterial diseases of wheat: concepts and methods of disease management
The most common bacterial pathogens that attack wheat are grouped under the names Xanthomonas translucens and Pseudomonas syringae. Pathovars (bacterial strains pathogenic to a specific host or hosts) included in X. ...
Bunt and smut diseases of wheat: concepts and methods of disease management
Five bunt and smut diseases are regularly associated with wheat ( Triticum spp.). These are: common bunt (Tilletia spp.), dwarf bunt (T. controversa), Karnal bunt (T. indica), loose smut (Ustilago tritici), and flag smut ...
Applications of raised-bed planting systems to wheat
Wheat has traditionally been planted in solid stands, especially in irrigated environments and rainfed production systems with moderate to high rainfall. Wheat is usually planted by either drilling closely spaced rows 10-30 ...
Optimal search in ex situ collections of wheat genetic resources
This paper develops a theoretical model for analyzing gene bank management decisions regarding the search for traits of economic value in ex situ collections of wheat. The model is applied to data on the probability of ...
In situ conservation of crops and their relatives: a review of current status and prospects for wheat and maize
This paper reviews the current status and prospects for in situ conservation of maize and wheat and their relatives. The caricature of in situ conservation-that it imposes cultural stasis and isolation on marginal ...
Roña o tizon de la espiga del trigo (Fusarium graminearum Schwabe)
El tizón de la espiga del trigo ha side un factor importante en muchas regiones del mundo, especialmente en aquellas en que las condiciones climáticas desde el espigamiento hasta la madurez son humedas y/o de alta pluviometría. ...
The increasing role of wheat consumption and imports in the developing world
This study presents in detail the themes explored in the CIMMYT publication, World Wheat Facts and Trends, Report 2 (1983). It looks at changes in wheat consumption in developing countries, examines the increasing importance ...
Economic criteria for establishing plant breeding programs
A general model of annual costs and lagged annual returns from a plant breeding program is developed to estimate the threshold sizes of a crop industry at which different breeding programs could be economically justified, ...
Nutrient deficiencies and toxicities in wheat: a guide for field identification
The use of visual symptoms to identify nutrient deficiencies and toxicities in plants can be improved by both their careful observation and description. This guide attempts to accurately describe symptoms of nutrient ...