Table 5.
Protein accumulation characteristics of cotton embryos under conventional management practices and two integrated management strategies at two fertility levels in 2012 and 2013.
| Fertility levels | Integrated management strategies | Embryonic protein accumulation characteristics | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| DAA1 (d) | DAA2 (d) | Duration (d) | Peak rate (g 100 embryos-1 d-1) | Protein content (g 100 embryos-1) | |||||||
| 2012 | 2013 | 2012 | 2013 | 2012 | 2013 | 2012 | 2013 | 2012 | 2013 | ||
| (a) | |||||||||||
| High fertility | CM | 21.6 | 20.5 | 33.5 | 35.4 | 11.9 | 15.0 | 0.134 | 0.120 | 2.35 b | 2.97 c |
| IMS1 | 21.0 | 18.6 | 32.9 | 32.0 | 11.9 | 13.4 | 0.139 | 0.150 | 2.43 b | 3.07 b | |
| IMS2 | 21.7 | 17.2 | 33.7 | 30.8 | 12.0 | 13.5 | 0.150 | 0.161 | 2.68 a | 3.30 a | |
| CV% | 2.49 | 9.37 | 3.49 | 6.82 | 5.71 | 5.12 | 7.77 | 13.81 | 7.00 | 5.55 | |
| (b) | |||||||||||
| Low fertility | CM | 21.2 | 22.7 | 32.8 | 37.0 | 11.5 | 14.3 | 0.116 | 0.132 | 2.01 bc | 2.63 b |
| IMS1 | 19.8 | 19.1 | 33.2 | 34.0 | 13.4 | 14.9 | 0.118 | 0.132 | 2.38 b | 2.91 ab | |
| IMS2 | 21.1 | 18.5 | 35.0 | 33.3 | 13.9 | 14.8 | 0.127 | 0.141 | 2.65 a | 3.06 a | |
| CV% | 7.47 | 9.56 | 4.88 | 4.94 | 7.92 | 1.85 | 4.11 | 8.54 | 13.81 | 7.65 | |
The characterization of protein accumulation in cotton embryos was calculated from Figure 4B (see Materials and Methods). CM and IMS represent the conventional management practices and integrated management strategies, respectively. DAA1 is the time at which embryonic protein accumulation began. DAA2 is the time at which embryonic protein accumulation ended. Duration is the difference in days between DAA1 and DAA2. CV% stands for coefficient of variation. The means within each column followed by the same letter are not significantly different (P < 0.05) according to the least significant difference (LSD) test.