Community-based knowledge systems in sweetpotato genetic resources management among four ethnolinguistic groups in Northern Philippines
1998
Solimen, J.A. | Gayao, B. (Benguet State Univ., La Trinidad, Benguet (Philippines). Northern Philippines Root Crops Research and Training Center)
The informal system in sweetpotato genetic resources management, which includes collection, conservation, multiplication, and exchange of varieties, can be inferred from the local cropping systems and management practices. The large number of varieties grown by farmers in the study areas attests to the rationality of the system. Practices such as the patamian, the aduyon, and the manpinakdaw system contributed to the conservation and dispersed of varieties. These indigenous practices can be integrated in the design of semiformal conservation and dispersal schemes. The abandonment of traditional sweetpotato production practices because of war, change in priorities or promotion of high-value crops, degeneration of varieties, and occurrence of virus diseases contributes to the loss of varieties. Active information dissemination and local people participation are recommended for sustained dispersal and conservation of sweetpotato varieties
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