Our group used above experimental
materials to study the dynamic photosynthetic change under the
condition of soil water deficits We showed that photosynthetic
efficiency (Pn), transpiration rate (Tr) and stomatal conductance
(Cond) of 10 wheat genotypes under the condition of 3 soil
water stress levels were related to wheat genotypes and their
corresponding cultivation zones very much. Intercellular CO2
concentration (Ci) was not when it reached a certain concentration