Table I.
Contribution of starch to dry weight of leaves in lines 4 and 1 in plants grown at low N at the 22-leaf stage
| Leaf Stage | Dry Wt | Starch | Starch | Dry Wt Minus Starch |
|---|---|---|---|---|
| mg cm−2 | % dry wt | mg cm−2 | ||
| Line 4 | ||||
| Young leaves | 6.78 ± 0.11 | 1.86 ± 0.28 | 27 | 4.92 |
| Mid-leaves | 8.47 ± 0.22 | 3.42 ± 0.12 | 40 | 5.05 |
| Old leaves | 9.15 ± 0.11 | 4.03 ± 0.56 | 44 | 5.12 |
| Line 1 | ||||
| Young leaves | 5.76 ± 0.23 | 1.39 ± 0.03 | 24 | 4.37 |
| Mid-leaves | 5.42 ± 0.20 | 1.67 ± 0.27 | 31 | 3.75 |
| Old leaves | 5.08 ± 0.46 | 1.22 ± 0.19 | 24 | 3.86 |
The mid-leaf is the most recently fully expanded leaf; young leaf is two leaves above it, and old leaf is two leaves below the mid-leaf. Data are means ± se of four replicates.