TY - JA AU - Iwanaga,M. AU - Freyre,R. AU - Orgeda,G. TI - Use of Ipomoea trifida (HBK.) G. Don germ plasm for sweet potato improvement 1. Development of synthetic hexaploids of I. trifida by ploidy-level manipulations SN - 1480-3321 PY - 1991/// N1 - Peer-review: Yes - Open Access: Yes|http://science.thomsonreuters.com/cgi-bin/jrnlst/jlresults.cgi?PC=MASTER&ISSN=0831-2796 T2 - Genome ER -