Contributions of Nonleaf Organs to the Yield of Cotton Grown with Different Water Supply
Table 2
Photosynthetic rates of whole leaves, whole bracts, and whole capsule walls at the full flower and the full boll stages in 2013.
Cultivar
Treatment
Photosynthesis rate (mol m−2 s−1) at the full flower stage
Photosynthesis rate (mol m−2 s−1) at the full boll stage
Leaves
Bracts
Capsule walls
Leaves
Bracts
Capsule walls
Xinluzao 45
CK
28.5 (54.2%)
5.3 (10.1%)
18.8 (35.7%)
16.4 (38.4%)
3.3 (7.8%)
23.1 (53.8%)
T1
27.3 (52.4%)
5.9 (11.2%)
19.0 (36.4%)
17.7 (42.8%)
3.0 (7.3%)
20.7 (49.9%)
T2
24.8 (57.8%)
4.4 (10.3%)
13.7 (31.9%)
12.3 (38.3%)
2.4 (7.6%)
17.4 (54.1%)
Xinluzao 33
CK
28.0 (57.3%)
4.3 (8.7%)
16.6 (34.0%)
16.1 (41.5%)
1.9 (4.8%)
20.9 (53.7%)
T1
30.8 (55.9%)
6.0 (10.9%)
18.3 (33.2%)
12.6 (34.6%)
2.2 (6.0%)
21.7 (59.4%)
T2
25.3 (57.7%)
3.0 (6.8%)
15.5 (35.5%)
9.1 (37.0%)
1.4 (5.7%)
14.1 (57.3%)
Note: The photosynthetic rates of the three organs were added together to obtain the total photosynthetic rate at each growth stage. The percent contribution of each organ to the total photosynthesis rate is shown within the parentheses.
CK: conventional irrigation; T1: slight deficit irrigation; T2: moderate deficit irrigation.
