Table 5.
Dry weight (mg) and photosynthetic surface area (mm2, in parenthesis) for spikelets (excluding awns, i.e. glume, lemma, and palea) and awns measured on central and distal spikelets assessed from Z45–Z60 for an awned EGA Gregory NIL (Z45–Z60) and its awnletted sib (Z60 only)
Data from a glasshouse experiment.
| Spikelet | Organ | Awned NIL | Awned or awnletted NIL | |||
|---|---|---|---|---|---|---|
| Z45 | Z51 | Z55 | Z60 (+awn) | Z60 (–awn) | ||
| Central | Glume+Lemmaa | 13.8 (42.2) | 20.7 (47.9) | 25.0 (53.7) | 31.2 (61.4) | 21.8 (50.3) |
| Awn | 9.6 (34.1) | 10.2 (37.2) | 12.1 (42.7) | 12.9 (43.3) | 2.7 (11.4) | |
| % Awn | 41.0 (43.9) | 33.1 (43.1) | 32.6 (44.2) | 29.2 (41.3) | 11.0 (16.7) | |
| Distal | Glume+Lemmaa | 9.2 (21.2) | 11.0 (23.1) | 13.9 (24.3) | 15.8 (26.8) | 10.9 (26.7) |
| Awn | 6.7 (27.3) | 6.8 (28.2) | 6.7 (34.8) | 6.7 (35.4) | 1.3 (6.4) | |
| % Awn | 42.1 (55.2) | 38.2 (54.9) | 32.5 (57.7) | 29.7 (57.2) | 10.6 (18.8) | |
| t test | ns (*) | * (*) | ns (*) | ns (*) | ns (ns) | |
*: Means are statistically different at P=0.05; ns denotes means are not statistically different at P=0.05.
a Dry weights included glume, lemma, and palea whereas photosynthetic area was based on glume and lemma only.