Table 2.
Grain sorghum diversity panel correlation coefficients of replicate means for the five major grain quality traits under study and additional agronomic phenotypes
| H 2 a | DTA | Height | GNP | TGW | YPP | Amylose | Starch | Crude protein | Crude fat | Gross energy | |
|---|---|---|---|---|---|---|---|---|---|---|---|
| DTA | 0.9 | – | 0.37*** | 0.1 | −0.19*** | 0.02 | −0.13* | 0.08 | −0.1 | −0.12* | −0.14** |
| Height | 0.94 | −0.01 | – | −0.02 | 0.05 | 0.04 | 0.09 | 0 | −0.16** | 0.19*** | 0.09 |
| GNP | 0.68 | 0.36*** | −0.04 | – | −0.12* | 0.79*** | 0.02 | 0.33*** | −0.47*** | −0.1* | −0.32*** |
| TGW | 0.83 | −0.06 | −0.07 | −0.08 | – | 0.45*** | 0 | 0.22*** | −0.16** | −0.21*** | −0.68*** |
| YPP | 0.68 | 0.35*** | −0.04 | 0.85*** | 0.37*** | – | 0 | 0.42*** | −0.51*** | −0.19*** | −0.43*** |
| Amylose | 0.56 | −0.11* | 0.06 | 0 | −0.13* | −0.07 | – | 0.03 | 0 | 0.08 | 0.21*** |
| Starch | 0.73 | 0.03 | −0.01 | 0.33*** | 0.22*** | 0.42*** | 0.01 | – | −0.66*** | −0.47*** | −0.68*** |
| Crude protein | 0.65 | −0.04 | 0.01 | −0.4*** | −0.13* | −0.43*** | −0.01 | −0.7*** | – | 0.29*** | 0.62*** |
| Crude fat | 0.72 | −0.06 | 0.03 | −0.2*** | −0.27*** | −0.31*** | −0.09 | −0.35*** | 0.22*** | – | 0.74*** |
| Gross energy | 0.82 | −0.1 | 0.03 | −0.31*** | −0.29*** | −0.42*** | 0.2*** | −0.71*** | 0.6*** | 0.76*** | – |
Correlations on the upper right of the diagonal represent 2013 data while 2014 correlations are shown lower left of the diagonal. Agronomic and yield trait data were published previously in Boyles et al. (2016)
DTA days to anthesis, GNP grain number per primary panicl, TGW thousand grain weight, YPP grain yield per primary panicle
* Significance at the 0.05 probability level, ** significance at the 0.01 probability level, *** significance at the 0.001 probability level
aBroad-sense heritability