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. 2014 Sep 3;9(9):e106639. doi: 10.1371/journal.pone.0106639

Figure 4. The BYDV disease incidence (DIC) and disease index (DID) of three wheat varieties infected with S. avenae, BYDV alone or jointly (mean ± SD).

Figure 4

Note: The differences of BYDV DIC were significantly among treatments (2011: p<0.001; 2012: p<0.001); among wheat varieties in 2012 (p = 0.012), not in 2011 (p = 0.887). The interactions between treatment and variety were significant in 2012 (p = 0.002), not in 2011 (p = 0.678). The differences of DID were significant among three wheat varieties (2011: p = 0.007; 2012: p<0.001); among different treatments in both years (2011: p<0.001; 2012: p<0.001); and the interactions between treatment and variety in 2012 (p = 0.023), were not significant interactions between treatment and variety in 2011(p = 0.153). Different little letters above the bar indicate the significance of differences according to treatment for same variety. Different capital letters in the bar indicate the significance of differences according to varieties for same treatment.