METHOD: Visual Examination CONDITIONS: Green House METHOD NARR: Four viruses, 1 fungus and 1 nematode were used to test for resistance. Tubers were used except for non-tuber-bearing accessions. Pot tests were performed with infers as replicates. Each pot was inoculated with 30 cysts giving an infestation density of 10-20 juvenals/gram of soil. Accessions with no visible females were processed using the Fenwick can. Resistant = <5 cysts. Partialcontrol. Accessions identified as resistant were retested to confirm resistance. RESULTS NARR: Over 70% of all evaluated accessions carried one or more resistances. AUTHOR EXPLANATION: All tubers obtained from one accessied tuber production under given conditions. Therefore, the results can not be generalized to the whole accession. Patterns of resistance are discussed. It is noted when the results obtained in this study do not match those of previonations are offered.