Growth, lint yield and changes in physiological attributes of cotton under temporal waterlogging

The Effects of Flood, Drought, and Flood Followed by Drought on Yield in Cotton

“…This conclusion was also confirmed by our results: the flood/droughtinduced yield losses increased with the duration of flood or drought (Figure 4a). In most flood stress research, the stress intensity was demarcated by different flood durations [13,26,27,35], which was also the case in the present work (Table 1). As a result, the yield-reducing effects of flood derived from different cotton experiments, including ours, are comparable, and the results are given in Figure 6.…”

“…This is because we attempted to assess the impact of short-term severe drought stress on cotton. As a result, relatively few studies are comparable with the present work in [26,27,31,35], respectively.…”

“…Accordingly, the growth of cotton aboveground organs is affected, such as reduced leaf growth, plant height [23,27], leaf water potential, and chlorophyll fluorescence [24,25]. In addition, the regulation of pivotal plant hormones, especially abscisic acid, decreases stomatal conductance and inhibits photosynthesis, which results in less photosynthetic production and less accumulated biomass [23,26]. Meanwhile, cotton boll formation and survival are affected [3,6,28,29].…”

“…This is mainly attributed to the use of the same cotton cultivar and the same experimental site in the two works. [26,27,31,35], respectively.…”

“…Seed cotton (including lint and seeds in harvestable cotton bolls) was manually picked from opened cotton bolls three times (i.e., 17 September, 30 September, and 25 October) after the cotton bolls opened. At harvest, all of the collected seed cotton was air dried in a dry room for a long period (20 days in this study) [26]. Then, seed cottons from five randomly selected lysimeters were sampled and oven-dried to assess the difference between air-dry and oven-dry weight; the results showed that the difference was indeed slight.…”