Table 1.

Kernel composition analysis

Mean (SD)	B101	PE5-B101	RE3-B101
Protein, %	10.58 (0.28)	12.54 (0.20)**	12.86 (0.21)***
Nitrogen, %	1.937 (0.029)	1.947 (0.025)	1.990 (0.030)
Sulfur, %	0.140 (0.002)	0.194 (0.002)****	0.191 (0.001)****
100-kernel wt., g	19.65 (1.28)	24.75 (1.26)****	22.02 (1.61)**
Kernel number per ear	459.83 (50.82)	494.50 (49.01)	483.67 (46.81)

Mature kernels were pooled and measured, and values (SD) represent the average of three measurements for protein, nitrogen, and sulfur contents; average kernel weight and number per ear were determined from 10 replicates of a 100-kernel sample and six ears, respectively. Statistical analysis was performed with the Student’s t test: significantly different at *P < 0.05, **P < 0.01, ***P < 0.001, and ****P < 0.0001.