Propagación clonal, conservación y transferencia internacional de germoplasma de yuca (Manihot esculenta Crantz) in vitro, nativas del Perú
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Accesiones de yuca (Manihot esculenta Crantz) colectadas en el Perú y conservadas en el Banco de Germoplasma de la Universidad Nacional Pedro Ruiz Gallo (UNPRG), Lambayeque, Perú, fueron evaluadas en medio de cultivo de iniciación de meristemas y de conservación de germoplasma. Estos medios de cultivo, denominados convencionalmente 4E y 8S, respectivamente, fueron formulados en el Centro Internacional de Agricultura Tropical (CIAT), Cali, Colombia, y son de uso amplio en la erradicación de patógenos sistémicos, conservación y transferencia internacional de germoplasma. En este trabajo se propone un descriptor de evaluación de crecimiento y desarrollo de accesiones de yuca in vitro, indicando que 80 y 95% de los meristemas evaluados en el medio de cultivo 4E y plántulas en el medio de cultivo 8S, respectivamente, alcanzaron un crecimiento normal a vigoroso. En la transferencia internacional de germoplasma 278 accesiones fueron transferidas de la UNPRG al CIAT y 249 accesiones del CIAT a la UNPRG.
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