Relationship between Incidence of Cephalosporium Stripe and Yield Loss in Winter Wheat
Table 6
Pearson correlation coefficients among Cephalosporium stripe rating, grain yield, test weight, and several kernel traits of 10 varieties tested in Pendleton 2006 (below diagonal) and 12 varieties tested in Moro 2007 (above diagonal) under inoculated and noninoculated conditions.
Whiteheads
Whiteheads SQRT
Grain yield
Test weight
Grain protein
Kernel weight (avg)
Kernel weight (SD)
Kernel diameter (avg)
Kernel diameter (SD)
Whiteheads
—
0.986
−0.809
−0.435
0.134
−0.155
0.290
−0.190
0.217
***
***
*
ns
ns
ns
ns
ns
Whiteheads SQRT
0.952
—
−0.820
−0.447
0.142
−0.217
0.228
−0.249
0.145
***
***
*
ns
ns
ns
ns
ns
Grain yield
−0.626
−0.618
—
0.304
−0.271
0.461
−0.096
0.464
−0.011
**
**
ns
ns
*
ns
*
ns
Test weight
−0.433
−0.517
0.389
—
0.273
0.263
0.093
0.210
0.140
+
*
+
ns
ns
ns
ns
ns
Grain protein
0.540
0.526
−0.749
−0.262
—
−0.161
−0.001
−0.141
−0.235
*
*
***
ns
ns
ns
ns
ns
Kernel weight (avg)
0.176
0.211
0.419
0.229
−0.266
—
0.747
0.971
0.794
ns
ns
+
ns
ns
***
***
***
Kernel weight (SD)
0.793
0.881
−0.378
−0.413
0.332
0.442
—
0.730
0.910
***
***
ns
+
ns
*
***
***
Kernel diam. (avg)
0.123
0.161
0.428
0.183
−0.262
0.988
0.382
—
0.751
ns
ns
+
ns
ns
***
+
***
Kernel diam. (SD)
0.812
0.879
−0.376
−0.429
0.367
0.520
0.946
0.486
—
***
***
ns
+
ns
*
***
*
+Significant at the 0.10 probability level. *Significant at the 0.05 probability level. **Significant at the 0.01 probability level. ***Significant at the 0.001 probability level.
