Crop land races, weedy races and wild relatives conserved in plant Genetic Resources centre in Sri Lanka:
What is crop land race
Crop land races are domesticated locally adapted traditional variety of a crop. They are distinct local races developed by farmers over generations. Crop land races defined as unique varieties of crops that have adapted to local conditions through a process of farmer selection.
What is crop weedy race
crop weedy races are crop varieties that are no longer cultivated and now become naturalized in the wild.
What are crop wild relatives
Corp wild relatives are non domesticated plant which closely related to the crops, crop wild relatives defined as a wild plant species that is more or less closely related to a particular crop and to which it may contribute genetic material, but unlike the crop species has not been domesticated. The genetic diversity in cultivated plants is derived from wild ancestral species or wild relatives.
Important of crop land race , weedy race and wild relatives
crop land race are important like other crops because they supply food, livestock fodder and row materials for production of clothing and fuel. The land races are also integral part of the cultural heritage due to their close link with local land area as well as community with their associated traditional knowledge, use and habit.
Crop wild relatives and weedy race important as they are related to crops and are used in agricultural research and development. crop land race , weedy race and wild relatives are used as genetic resources to improve modern crops because genetic materials with valuable inherited traits could be present in them. This helps Agriculture to adapt to new challenges, such as Climate change, pest and diseases , Salination.
Why we conserve them?
Crop land races, weedy races and wild relatives are threatened & suffering from genetic erosion. replacement of local varieties by modern varieties resulting in reduction of the sheer number of cultivars is the main cause of genetic erosion. This is intensified by the emergence of new pests, weeds and diseases, environmental degradation, deforestation, urbanization and industrial development. collection and conservation of Crop land races, weedy races and wild relatives are therefor necessary for protection of this plant genetic resources for future generation and benefit.
Crop Group No of Accessions Landraces Wild and weedy races Improved
Rice and related spp. 2386 31 1345
Other cereals and related spp 942 13 482
Grain Legumes 792 135 677
Vegetable Legumes 615 6 376
Solanaceous vegetables & Condiments & related spp. 470 54 320
Cucurbit vegetables 553 24 58
Brassicaceae vegetables 2 0 11
Alliums 1 0 15
Other vegetables 243 9 102
Leafy vegetables 113 5 5
Root and Tubers 4 0 0
Mustard and related spp. 83 1 5
Oil crops 158 9 107
Fiber crops 2 0 9
Medicinal plants 18 2 0
Fruits 74 6 622