Plant Architecture Influences the Population Transpiration and Canopy Temperature in Winter Wheat Genotypes

To study how plant architecture affects the canopy traits and water use of wheat, Triticum aestivum L. population is expected to provide important information for cultivar improvement ideal structure establishment conserving without causing an enormous grain yield loss. This was conducted three consecutive growing seasons using two genotypes with contrasting architectures as materials, upright-leafed compact type Jing 411 flat-leafed loose Jinmai 47. The population-scale transpiration (PT) soil evaporation (E) were partitioned from evapotranspiration (ET) micro-lysimeters, density temperature depression (CTD) also monitored during period jointing early filling stage—the largest requirement wheat crops. 47 showed a lower E than 411, but similar PT ET, though it had higher at sowing density. total (TET) whole season in genotypes. indicated that performed better conservation 411. With TET, however, rather larger CTD significantly If leaf net photosynthetic rate could explain its yield, stomotal conductance not PT, ET TET Presumably, involvement disrupted original transpiration–larger relation, broke up prevailing saving water-losing concept. Thus, might suggest value crops demonstrate possibility irrigation serious loss by taking advantage distinct establish appropriate structure.