The European Cultivated Potato Database

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Characters	Houma	Charles Downing	Katahdin
Foliage cover	7[9]	7[9]	6[9] 7[14,15]
Flower colour	1[9,13]	1[9]	-
Flower frequency	6[9]	3[9]	4[13] 5[9] 8[14]
Berries	1[9]	-	6[13] 7[9]
Light sprout colour	1[13]	-	1[13]
Tuber skin colour	1[9,13]	1[9]	1[9,13,14,15]
Tuber eye colour	-	-	1[13]
Primary tuber flesh colour	1[9,13]	1[9]	1[9,13,14,15]
Tuber shape	2[8,9,13]	2[9]	1[13,14] 2[15] 3[9]
Tuber eye depth	5[8] 6[9]	5[9]	6[13] 7[9,14,15]
Tuber skin texture	8[9]	5[9]	6[13] 7[14] 8[9]
Yield potential	6[9]	6[9]	5[15] 7[9,23]
Tubers per plant	-	-	4[13]
Tuber size	6[9]	-	6[14] 8[9] 9[13]
Tuber shape uniformity	7[9]	4[9]	7[9,15]
Resistance to external damage	-	6[9]	-
Resistance to internal bruising	-	-	1[15]
Dormancy period	-	-	6[15]
Storage ability	-	-	7[15] 8[14]
Cooking type / 411 Cooked texture	-	-	2[14] 5[15]
After cooking blackening	7[9]	-	-
Taste	6[9]	-	5[9]
French fry suitability	-	-	5[15]
Frying colour	-	-	5[15]
Dry matter content	-	-	4[13] 6[14] 7[15]
Starch content	3[9] 4[8]	-	3[9] 6[14]
Presence of late blight R gene	-	-	4[13]
Resistance to stem canker (Rhizoctonia solani)	-	-	3[9]
Resistance to common scab (Streptomyces scabies)	4[9]	-	2[14] 3[9] 4[15]
Resistance to powdery scab (Spongospora subterranea)	4[8]	-	-
Wart (Synchytrium endobioticum)	2[9]	-	1[9,15]
Field immunity to wart races	1[9]	-	-
Resistance to dry rot (Fusarium spp.)	7[9]	-	-
Resistance to bacterial soft rot (Erwinia spp.)	-	7[9]	5[9]
Resistance to potato virus A	7[9] 9[8]	-	8[14] 9[9,13,15]
Resistance to potato virus X	1[8] 7[9]	3[9]	-
Resistance to potato virus Y (strain not specified)	-	-	4[14] 5[9] 7[13,15]
Resistance to potato leaf roll virus	7[9] 9[8]	-	4[14] 6[9,13,15]
Resistance to Globodera rostochiensis race 1	3[9]	-	2[15] 3[9]
Resistance to Globodera rostochiensis race 5	-	-	8[15]
Drought resistance	7[9]	-	7[14,15] 9[9,13]
Resistance to late blight on tubers	4[8,9]	-	5[9,23] 6[13,15]
Resistance to late blight on foliage	4[8,9]	-	2[14] 3[9,23] 4[13] 6[15]

Source:
[8]	Mix-Wagner, Gunda	1997	Federal Research Centre of Agriculture, GERMANY
[9]	Scheler, Konrad	2000	Leibniz Institute of Plant Genetics and Crop Plant Research (IPK), GERMANY
[11]	Ellisseche, Daniel	2000	INRA, FRANCE
[13]	Campbell, Heather	2000	SASA, UNITED KINGDOM
[20]	Zimnoch-Guzowska, Ewa	2000	Plant Breeding and Acclimatization Institute, POLAND
[6]	Jaroslava, Domkarova	1997	Potato Research Institute, CZECH REPUBLIC
[7]	Choiseul, James	1996	Department of Agriculture Food and Forestry, IRELAND
[14]	Polgar, Zsolt	1999	Pannon University , HUNGARY
[15]	HZPC, B.V.	2000	HZPC B.V., NETHERLANDS
[23]	Kiru, Stepan	1999	N.I. Vavilov All-Russian Scientific Research, RUSSIAN FEDERATION
[40]	Dillon, Joan	2006	Teagasc Crops Research Centre, IRELAND