Notes presented by the malaysian delegation /West Malaysia/.

arroz blight breeding methods cultural methods economic distribution ensayos de variedades fitomejoramiento graine introduction de plantes mode de culture perte au stockage pests of plants plagas de plantas plant breeding plant introduction plant protection production de semences protection des plantes ravageur des plantes rendement rendimiento resistance to injurious factors rice riz rodents roedores rongeur seed production seeds selection semilla storage losses variedades varieties variety trials yields