In vitro clonal propagation, conservation and international transference of germplasm of cassava (Manihot esculenta Crantz) native of Peru
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Abstract
Accessions of cassava (Manihot esculenta Crantz) collected in Peru and preserved in the Germplasm Bank of Universidad Nacional Pedro Ruiz Gallo (UNPRG), Lambayeque, Peru, were evaluated in both meristem and germplasm conservation culture medium. These culture media, conventionally called 4E and 8S, respectively, were formulated at the International Center for Tropical Agriculture (CIAT) Cali, Colombia and are widely used in the eradication of systemic pathogens, conservation and international transference cassava germoplasm. In this work a descriptor of growth and development evaluation of cassava accessions was proposed, indicating that 80 and 95% of the meristems evaluated in the culture medium 4E and plantlets in the culture medium 8S, respectively, achieved normal to vigorous growth. In the international germplasm transference 278 accesions were transferred from UNPRG to CIAT and 249 accesions from CIAT to UNPRG.
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