Understanding field resistance mechanisms for improved control of Septoria tritici

https://doi.org/10.17221/10346-PPSCitation:Lovell D.J., Parker S.R., Paveley N.D., Worland A.J. (2002): Understanding field resistance mechanisms for improved control of Septoria tritici. Plant Protect. Sci., 38: 165-169.
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Field resistance can contribute to reductions in epidemic progress of Septoria tritici in winter wheat. Crop growth and
canopy architecture are identified as key mechanisms of field resistance. Near isogenic lines differing for dwarfing (Rht)
and photoperiod sensitivity (Ppd) genes, enabled the study of target traits in a constant background of genetic resistance.
Epidemics were consistently earlier in shorter crops across a range of environments. The mechanism for this effect was
identified as an increase in spore arrival due to a reduction in the required dispersal distance between infective tissue
and emerging upper culm leaves.
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