Effects of genotype and genotype – environment interaction on deoxynivalenol accumulation and resistance to Fusarium head blight in rye, triticale, and wheat.
MIECANER, T., REINBRECHT, C., LAUBER, U., SCHOLLENBERGER, M. and GEIGER, H.H.
Plat Breeding 120: 97 – 105.
2001
บทคัดย่อ
The effects of winter cereal species, host genotype and environment on DON accumulation and FHB were analysed by inoculating 12 rye, eight wheat and six triticale genotypes of different resistance levels with a DON – producing isolate of Fusarium culmorum at three locations in 2 years. Although rye genotypes were , on average, affected by Fusarium infections much the same as wheat genotypes, wheat accumulated twice as much DON as rye. Triticale was least affected and grain contained slightly more DON than rye. The differences between and within cereal species in the field experiments were highly influenced by environment for resistance traits and mycotoxin contents. Nevertheless, mean mycotoxin content of the grain could not be associated with general weather conditions in the individual environments. Correlations between resistance traits and DON content were high in wheat with the most resistant variettes also accumulation less DON, but with variability in rye.