Table 1.
Descriptive statistics of the grain protein content (GPC, %) in the recombinant inbred line (RIL) population and the parents in the two years.
| Year | Method | RIL Population (n = 280) | Parental Mean (n = 16) | p | |||||
|---|---|---|---|---|---|---|---|---|---|
| Mean ± SD | CV | Range | Skewness | Kurtosis | HHZ | JZ1560 | |||
| 2016 | NIRS | 12.44 ± 1.59 | 0.13 | 8.35–16.35 | 0.20 | −0.26 | 10.14 ± 0.02 | 13.16 ± 0.01 | <0.001 |
| KND | 11.68 ± 1.62 | 0.14 | 7.27–15.78 | 0.18 | −0.30 | 9.39 ± 0.11 | 13.06 ± 0.33 | ||
| 2017 | NIRS | 10.67 ± 1.40 | 0.13 | 7.29–15.90 | 0.28 | 0.06 | 8.44 ± 0.03 | 10.92 ± 0.01 | <0.001 |
| KND | 10.64 ± 1.39 | 0.13 | 7.39–15.98 | 0.29 | 0.15 | 8.54 ± 0.00 | 10.62 ± 0.36 | ||
NIRS: near infrared reflectance spectroscopy; KND: Kjeldahl nitrogen determination; p: two-tailed p value of student’s t test.