Figure 6 Effects of growth temperature, water regime and
heatwave on vegetative dry mass (i.e. leaves, stems and branches; panel
a, b), fruit dry mass (i.e. lint and bract; panel c, d) and total dry
mass (panel e, f) of cotton plants at harvest at the end of the
experiment. Bars indicate mean value for each treatment combination and
error bars represent standard error of mean (n=5). Thermal regimes
characterized by different daytime temperature (i.e.
32/22oC and 32/26oC) are indicated
by hatched bars.
Table 1 Results of
Two-way ANOVA showing the main and interactive effects of growth
temperature (Temp) and water deficit stress (Water) on physiological
variables and biomass productivity of cotton plants. Significant effect
is considered when P≤0.05 and is displayed in bold. Variables presented
in the table are physiological parameters of net photosynthetic rate
(Asat, µmol m-2s-1), stomatal conductance (gs, mol
m-2 s-1), dark respiration rate
(Rn, µmol m-2 s-1),
the ratio of intercellular to atmospheric CO2(Ci/Ca) and leaf level carbon balance
(Asat-Rn, µmol m-2s-1), and growth parameters of days required for plant
height to reach 50% of its maximum (H50, day), and dry
mass (g plant-1) for vegetative (leaves, stems and
branches), fruit (lint and bract) and the total aboveground portion of
the plant. Definitions, abbreviations and units also apply to other
tables unless otherwise stated.