TY - JOUR
T1 - Fusarium wilt race 1 on lettuce
AU - McCreight, James D.
AU - Matheron, Michael E.
AU - Tickes, Barry R.
AU - Platts, Belinda
PY - 2005/6
Y1 - 2005/6
N2 - Three races of Fusarium oxysporum f.sp. lactucae, cause of fusarium wilt of lettuce, are known in Japan, where the pathogen was first observed in 1955. Fusarium wilt first affected commercial U.S. lettuce production in 1990 in Huron, Calif., but did not become a serious problem in the U.S. until 2001 when it reappeared in Huron and appeared in the Yuma, Arizona lettuce production area. Reactions of three fusarium wilt differentials ('Patriot', susceptible to races 1,2 and 3; 'Costa Rica No. 4', resistant to race 1, and susceptible to races 2 and 3; and 'Banchu Red Fire', susceptible to races 1 and 3, and resistant to race 2) in a naturally-infected commercial field test and artificially-inoculated greenhouse tests, indicated presence of race 1 in the Yuma lettuce production area. Reactions of these differentials to an isolate from Huron confirmed the presence of race 1 in that area. Consistent with previous results from the U.S. and Japan, 'Salinas' and 'Salinas 88' were resistant to the Yuma and Huron isolates of race 1, whereas 'Vanguard' was highly susceptible. Limited F1 and F2 data indicate that resistance to race 1 in 'Costa Rica No. 4' and 'Salinas' is recessive. 'Calmar' is the likely source of resistance in 'Salinas' and 'Salinas 88'.
AB - Three races of Fusarium oxysporum f.sp. lactucae, cause of fusarium wilt of lettuce, are known in Japan, where the pathogen was first observed in 1955. Fusarium wilt first affected commercial U.S. lettuce production in 1990 in Huron, Calif., but did not become a serious problem in the U.S. until 2001 when it reappeared in Huron and appeared in the Yuma, Arizona lettuce production area. Reactions of three fusarium wilt differentials ('Patriot', susceptible to races 1,2 and 3; 'Costa Rica No. 4', resistant to race 1, and susceptible to races 2 and 3; and 'Banchu Red Fire', susceptible to races 1 and 3, and resistant to race 2) in a naturally-infected commercial field test and artificially-inoculated greenhouse tests, indicated presence of race 1 in the Yuma lettuce production area. Reactions of these differentials to an isolate from Huron confirmed the presence of race 1 in that area. Consistent with previous results from the U.S. and Japan, 'Salinas' and 'Salinas 88' were resistant to the Yuma and Huron isolates of race 1, whereas 'Vanguard' was highly susceptible. Limited F1 and F2 data indicate that resistance to race 1 in 'Costa Rica No. 4' and 'Salinas' is recessive. 'Calmar' is the likely source of resistance in 'Salinas' and 'Salinas 88'.
KW - Breeding
KW - Disease resistance
KW - Fusarium oxysporum f. sp. lactucae
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U2 - 10.21273/hortsci.40.3.529
DO - 10.21273/hortsci.40.3.529
M3 - Article
AN - SCOPUS:19944362500
VL - 40
SP - 529
EP - 531
JO - Hortscience: A Publication of the American Society for Hortcultural Science
JF - Hortscience: A Publication of the American Society for Hortcultural Science
SN - 0018-5345
IS - 3
ER -