Submitted to: American Journal of Potato Research
Publication Type: Peer Reviewed Journal
Publication Acceptance Date: 5/25/2000
Publication Date: N/A
Interpretive Summary: The golden nematode is a serious threat to the potato industry of the United States. When left uncontrolled, this nematode can reduce potato yields by 80%. A strict quarantine backed by an aggressive control program has limited the spread of the golden nematode in the United States to 6 counties in New York State. Evidence that chemical nematicides contaminate eground water forced their elimination from use in the golden nematode control program. This decision resulted in host resistance becoming the primary means of controlling the golden nematode. Although host resistance effectively controls the golden nematode, acceptable resistant cultivars are not available that have sufficient diversity to satisfy all marketing niches. The objective of breeding golden nematode resistant potatoes is to provide growers with acceptable golden nematode resistant alternatives to commonly grown susceptible cultivars. The golden nematode resistant cultivar Eva reported here is well adapted to growing conditions in the northeast. Eva's excellent chipping ability make it an acceptable golden nematode-resistant alternative to the chipping cultivar Monona that is susceptible to the golden nematode. In addition, Eva's bright clear skin and attractive round to oval shape will make it attractive to the tablestock industry. Eva's resistance to virus will hasten its acceptance by potato growers.
Technical Abstract: Eva is a new potato variety being released by the New York and Pennsylvania Experiment Stations. Eva is notable for its bright clear skin and attractive round to oval shape. It produces a chip color comparable to Monona from 9 C storage and has specific gravity .014 less than that of Atlantic. It has exceptionally long tuber dormancy and has extreme resistance to PVX, PVY, and race Ro1 of the golden nematode. Scab resistance is like that of Monona. It is expected that Eva will find primary acceptance as a tablestock variety.