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Genetic variability among 122 Rhynchosporium secalis isolates collected from barley in three regions of Tunisia was investigated using host differentials, amplified fragment length polymorphism (AFLP), and microsatellite markers. The isolates...

Sodic and alkali soils are characterized by the occurrence of excess sodium (Na+) to levels that can adversely affect soil structure and disturb the availability of nutrients for plant growth. Structural problems in these soils are created by...

This section examines the main types of marginal-quality water: wastewater from urban and peri-urban areas and saline or sodic agricultural drainage water and groundwater

There is an emerging interest in on-the-go mapping of apparent soil electrical conductivity (ECa) as a surrogate spatial map for soil properties. The quality (or precision and accuracy) of ECa maps as affected by the swath width of the...

Competition among eight Rhynchosporium secalis isolates was assessed during parasitic and saprophytic phases of the disease cycle in field experiments conducted at two locations and over two growing seasons. The eight isolates were inoculated...

Desertification is nowhere more serious han in the Middle East and North Africa (MENA), stretching from Pakistan in the east to Morocco in the west, and from Ethiopia and Sudan in the south to Turkey in the north. Yet, many MENA countries have...

GAP (Guneydogu Anadolu Projesi or Southeastern Anatolia Project) is a multisector integrated regional development project in Turkey, and one of the largest integrated rural development projects in the world. It is a multibillion dollar project...

This issue of Caravan looks at different aspects of desertification; and how ICARDA and its partners are working together to help farming communities find effective, sustainable solutions. These collaborative efforts have generated significant...

Barley, one of the earliest crops in human history, is grown in over 100 countries. In the West, it is used mainly for animal feed or as malt for producing beverages. In developing countries it is a staple food for millions of people. Developing...

Currently at least 20 per cent of the world's irrigated land is salt-affected. However, projections of global population growth, and of an increased demand for food and fibre, suggest that larger areas of salt-affected soil will need to be...