March
2010
, Volume
94
, Number
3
Pages
335
-
338
Authors
Zenta Nishio, National Agricultural Research Center for the Hokkaido Region, Shinsei, Memuro, Hokkaido 082-0081, Japan;
Kanenori Takata, National Agricultural Research Center for Western Region, 6-12-1 Nishi-Fukatsucho, Fukuyama, Hiroshima 721-8514, Japan;
Miwako Ito,
Masahiko Tanio,
Tadashi Tabiki, and
Hiroaki Yamauchi, National Agricultural Research Center for the Hokkaido Region, Japan; and
Tomohiro Ban, Kihara Institute for Biological Research, Yokohama City University, 641-12 Maioka-cho, Totsuka-ku, Yokohama, Kanagawa 244-0813, Japan
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Accepted for publication 9 November 2009.
Abstract
ABSTRACT
The level of the fungal toxin deoxynivalenol (DON) in milled flour and its partitioning between flour and bran of 15 spring wheat (Triticum aestivum) lines with different levels of Fusarium head blight (FHB; mainly caused by Fusarium graminearum) resistance was investigated in Hokkaido, Japan between 2004 and 2007. The DON levels in flour (DONf) and bran (DONb) showed positive linear relationships with DON levels in whole kernels (DONk) (R2 = 0.94, n = 60, P ≤ 0.01 and R2 = 0.93, n = 60, P ≤ 0.01, respectively). Results indicated that the DON partitioning ratio between flour and bran is primarily related to the level of DONk, and the DON level was approximately doubled in DONb and halved in DONf for any level of DONk. Only one pattern of DON partitioning supported the conventional strategy to select FHB-resistant lines.
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© 2010 The American Phytopathological Society
