Fifty wheat vanettes representative of the major spring types were tested in the Third International Spring Wheat Yield Nursery ( ISWYN). Results were obtained from 62 locations throughout the spring wheat regions of the ...

For the past several years the Rockefeller Foundation and later the International Maize and Wheat Improvement Center (CIMMYT) has prepared and coordinated a series of international yield trials in spring wheats. Originally ...

The cooperative Food and Agriculture Organization-Rockefeller Foundation, Near East-American Spring Wheat Yield Nursery originated as an outgrowth of a recommendation made by Dr. Jose Vallega (formerly with the Ministry ...

Prior to 1960. a number of scientists who had had occasion to stqdy uniform sets of material such as the International Rust Nursery of the United States Department of Agriculture. noticed that, apart from disease reaction. ...

Adaptation is perhaps the most elusive concept in plant breeding. Not only is there surprisingly little information concerning the performance of varieties over a broad range of environments in even the major crop plants, ...