Table 1.
Vegetative and reproductive traits of B73 plants in the field, Woodland, CA
| Treatment | Plant height (cm) | Leaf No. | Leaf appearance rate (leaves/day) | GDDc to shed | GDDc to silk | Tassel length (cm) | Ear length (cm) by GDDc | Ear elongation rate (cm/day) | Sp ikelet no. at 836 GDDc | ||
|---|---|---|---|---|---|---|---|---|---|---|---|
| 719 | 792 | 836 | |||||||||
| WW | 249.4 ± 8.2 | 21.1 ± 0.6 | 0.34 | 790 ± 4.9 | 790 ± 4.9 | 33.3 ± 3.6 | 3.8 ± 0.6 | 7.2 ± 0.8 | 8.5 ± 0.6 | 0.47 | 48.3 ± 2.6 |
| DRT | 147.8 ± 10.9a | 18.9 ± 2.0a | 0.29 | 832 ± 6.2a | No Obs. | 26.6 ± 3.8a | 2.9 ± 0.5a | 3.7 ± 0.7a | 6.0 ± 1.2a | 0.29 | 47.6 ± 3.5 |
Height and leaf number were collected from 28 well‐watered (WW) and 32 drought (DRT) treated plants at GDDC 836. Staging notes were taken from V7 to R1. Tassel length was measured for 11 (WW) and 16 (DRT) plants at R1. Leaf appearance rate and ear elongation rate was calculated using linear regression based on data in Supporting Information Figure S2. Measurements represent mean ± SD. One day is approx. 11.4 GDDC, growing degree days.
a
DRT means are statistically different from WW at p < 0.01.