Health diagnosis of rice genetic resources

Contributors to this page: T.T. Chang Genetic Resources Centre-IRRI, Los Baños, Philippines (Ruaraidh Sackville Hamilton, Ken McNally, Flora de Guzman, Renato Reaño, Soccie Almazan, Adelaida Alcantara, Elizabeth Naredo, Patria Gonzales); WARDA, Cotonou, Benin (Ines Sánchez); UPLB-University of the Philippines at Los Baños (Teresita Borromeo); CIMMYT- Global Wheat Program (Etienne Duveiller).

List of diseases of quarantine importance

Click here for more detailed outputs from the page on the safe movement of germplasm, on this site.

The list below mentions some of the diseases that were considered important worldwide, but many of them may or may not have relevance in specific countries. It also does not consider diseases of limited relevance (e.g. only important in very few countries).



Fungal diseases

Options for testing procedures

Recommended methods to detect the presence of each disease:

Testing intervals/seasons

Testing before material goes into the genebank or to the field is important to reduce transfer of diseases or pests.

Recording information during health diagnosis

The following information should be recorded for each step:

References and further reading

ISTA. 2008. Detection of Pyricularia oryzae on Oryza sativa (Rice). International Seed Testing Association (ISTA), Bassersdorf, Switzerland. Available from: Date accessed: 15 June 2010.

Mew TW, Misra JK, editors. 1994. A Manual of Rice Seed Health Testing. International Rice Research Institute, Los Banos, Languna, Philippines. Available from: Date accessed: 15 June 2010.

The Genebanks

The 11 CGIAR genebanks currently conserve 730,000 of cereals and grain legumes, forage crops, tree species, root and tuber crops, bananas and crop wild relatives.