Diseases of maize in South and South-East Asia: Problems and progress uri icon

abstract

  • In Asia, maize ranks third after rice and wheat both in area and production. In recent years, maize production has shown a steady increase without much increase in area, but productivity has been low (2.8 t ha-1). The major maize-producing countries in Asia are China, India, Indonesia, Philippines, Thailand and Vietnam. Information embodied in this review pertains to the countries of South and South-East Asia. The ubiquitous incidence of diseases at the preharvest stage has been an important bottleneck in increasing production. The major diseases in the region are five downy mildews, four foliar, two pre-flowering and four post-flowering stalk rots, and leaf and sheath blight. Information on virus diseases, nematodes and postharvest microbial problems is also given. Information on distribution of diseases is provided. Concerted efforts involving regional and national programmes sponsored by the Rockefeller Foundation and the Centro Internacional de Mejoramiento de Maiz y Trigo have yielded good dividends, particularly in the case of downy mildew diseases. The development and release of cultivars resistant to downy mildew has been an important outcome of this cooperative research. The use of disease management methods other than host resistance has also been highlighted.

publication date

  • 1993
  • 1993
  • 1993