IMG'99

Genetic erosion - a loss of genetic diversity

While plant breeding contributes immeasurabiy to sustaining and increasing agricultural production. a side effect can be to reduce diversity in the field.

Pnmrthre forms, wild speciea, land rac es, traditional yarieties

i

• i

Oencs used to breod new yarieties

Modem

yarieties

iii

New yarieties replace odginał types

Genetic diversity >1 available in the field for breeding reduced

li ii ij M ,i?

■H

tBFCR 1992

Dhwnity lu> Pe*elopwnnt