Table 3.
Spike brittleness, spike harvest index (SpHI), threshing time and threshing efficiency in two groups of recombinant inbred lines showing extreme values of spike brittleness
| Genotypic group | d.f. | Spike brittleness† | SpHI | Threshing time (s per 20 g spikes) | Threshing efficiency (g grain min−1) |
|---|---|---|---|---|---|
| Brittle (Br) | 0·985 | 0·594b | 41·3a | 19·2b | |
| Non-brittle (br) | 0·001 | 0·623a | 25·4b | 34·4a | |
| Source of variation | |||||
| Genotypic group (F-value) | 1 | 38·4*** | 63·1*** | 58·6*** | |
| Genotype (group) (F-value) | 29 | 12·2*** | 2·2*** | 2·04** | |
| Block (F-value) | 2 | 6·7*** | 23·5*** | 12·1*** | |
† Brittleness values did not distribute normally and hence were not analysed.
a,b Different letters indicate significant differences between group means according to Tukey's HSD test at P < 0·05.
***, ** Significant F values at P < 0·001 or P < 0·01, respectively.