Although there is much debate about the role of scientific plant breeding in the possible reduction of genetic diversity in commercially grown crop plants, few studies have recorded breeders' actual use of materials and ...

Wheat yields in the Yaqui Valley of NW Mexico have appeared to remain stable in the past decade despite the release of new varieties and improved agronomic recommendations. A study was conducted during the winter of 1990/91 ...

This wheat special report is a guide that outlines the procedures used for measuring many factors in small grains research. The actual observations taken, however, will depend on the objectives of the work in question. To ...

The USSR is one of the main wheat-producing countries in the world. It has a longestablished wheat breeding network involving institutes and stations nationwide. Soviet scientists have contributed to modern varieties and ...

Mexican officials from the Centro de Investigaciones Agricolas del Noroeste (CIANO) and Sanidad Vegetal, U.S. Quarantine officials and CIMMYT staff met in Ciudad Obregon on May 8-9,1991, to review the status of the disease ...

The production of wheat germplasm with resistance to high temperature increases in importance with world wheat demand. Temperatures considered above optimal for wheat growth and development of presently grown varieties are ...

The People's Republic of China, which has the world's largest population (1990 estimate of 1.1 billion), is also the world's largest wheat producer with the crop being grown in 29 of its 30 provinces. As expounded upon in ...

This document attempts to quantify the impact of crop management research in Bangladesh since 1983, when CIMMYT scientists have been in bilateral positions. No attempt has been made to separate NARS and CIMMYT accomplishments ...

This publication marks the end of an era; after 30 years, the International Spring Wheat Yield Nursery (ISWYN), flagship of the international yield nurseries, has been discontinued. The ISWYN will be replaced by several ...

In the process of genetic improvement of bread wheat, photosynthetic rate per unit leaf area has decreased significantly from the maximum photosynthetic rate (Pmax) of the crop's diploid ancestors (donors of the A, B, and ...