Rice yellow mottle virus in tanzania

The vision is to transform the existing subsistence-dominated rice subsector progressively into commercially and viable production systems. The priority areas for rice production are the irrigated lowland, rainfed lowland, and upland ecosystems. Yields range from 2. Total potential area for irrigation development is In the upland systems, landraces Supa are commonly grown.

Yields currently range from 0. In the rainfed lowlands, water is usually adequate. Soils are also relatively fertile as compared to upland soils. Varieties grown are mostly landraces. Yields range from 1. Crop diversification and intensification have great potential in these rainfed lowland systems.

Farmers grow mainly local and traditional varieties, many of which have low yield potential. Most of the rice grown depends on rainfall and many irrigation schemes need urgent rehabilitation. Upland systems are prone to drought, weed infestation including Striga , and attacks by pests and diseases blast. Rainfed lowland systems suffer from floods during heavy rains but can also face drought.

Weed infestation, pests African rice gall midge and stem borers , and diseases rice yellow mottle virus, blast, bacterial leaf blight cause low yields. Soil fertility is generally low. Related Articles: Open Access. Climate Characteristics over Southern Highlands Tanzania. Atmospheric and Climate Sciences Vol. DOI: Open Access. Open Journal of Forestry Vol. Journal of Geoscience and Environment Protection Vol. Disease Notes. Ndikumana Search for more papers by this author.

Pinel-Galzi Search for more papers by this author. Negussie Search for more papers by this author. N'chimbi Msolla Search for more papers by this author. Njau Search for more papers by this author.

Singh Search for more papers by this author. Choi Search for more papers by this author. Bigirimana Search for more papers by this author. Fargette Search for more papers by this author. Affiliations Authors and Affiliations I. Box , Kigali, Rwanda A. Box , Dar es Salaam, Tanzania S. N'chimbi Msolla P. Njau , Sokoine University of Agriculture, P.

Box Morogoro, Tanzania R.