Breeding for resistance to rust diseases in wheat is an example of productivity maintenance research. Productivity maintenance research is necessary to avoid contractions in the wheat supply curve that result from changes ...

A survey of Puccinia recondita f. sp. tritici in Mexico during 1988 and 1989 indicated the presence of 23 pathotypes. In the Pacific region and Highland Plateau, pathotype TCB/TD predominated both years, followed by TBD/TM. ...

This paper presents results of a 1995 survey of 864 maize-growing households in six states that account for more than 70% of India's maize area: Andhra Pradesh, Bihar, Karnataka, Madhya Pradesh, Rajasthan, and Uttar Pradesh. ...

Two diagnostic surveys conducted during the rice and wheat seasons in 1992 in Kamal and Kurukshetra Districts of Haryana, India, helped develop a preliminary assessment of both near-term and potential longer-term problems ...

This paper assesses the relative strengths and weaknesses of India's public and private maize seed industries and examines future options for maize seed industry policies. By 1992, nearly as many maize researchers worked ...

Roelfs, A.P., R.P. Singh, and E.E. Saari. 1992. Rust Diseases of Wheat: Concepts and methods of disease management. Mexico, D.F.: CIMMYT. 81 pages. The rust diseases of wheat are among the most studied of the plant diseases. ...

The rice-wheat (R-W) cropping pattern is very important in eastern Uttar Pradesh (U.P.), India (Figure 1). Of the 18 Districts (three divisions) in this part of the State under the responsibility of the Narendra Deva ...

Las royas del trigo se incluyen entre las enfermedades más estudiadas de las plantas. Apartir de las obras de Tozzetti y Fontana en 1767, existe una lista muy extensa de publicaciones científicas sobre los agentes patógenos ...