Applications of Xerophytophysiology and Signal Transduction in Plant Production—Flower Qualities in Eustoma grandiflorum Were Improved by Sub-Irrigation

Relatively mild xerophytic or hardening treatments can induce healthy development of plants. In the present study, as one xerophytophysiological applications, sub-irrigation was applied to a flower plant Eustoma grandiflorum confirm whether improved flowering quality in addition growth and physiology. As shown by results, long-term induced osmotic adjustment, with osmolyte concentration increasing 32.8 osmol m−3 (p ≤ 0.01), leaf photosynthetic activities, more than 10% 0.05) increase capacity, promoted growth, shoot biomass 27.5% 0.01) root 50.5% 0.01). These improvements were attributed turgor maintenance cell water re-compartmentation into symplasm, which both consequence adjustment. The lower potential relative at incipient plasmolysis suggested that plants plots might be resistant environmental stresses. Sub-irrigation also increased anthocyanin (16% up, p Flower improvement up-regulation PAL gene, could catalyze synthesis anthocyanins. gene associated salicylic acid (SA), hormone for signaling. affected opening closing oscillations less changed size oscillation amplitude. We adopted mathematical models thoroughly analyzed dynamic changes photosynthesis, oscillations. conclusion, feasible practice used E. culture improve quality.