weather →(i) → fruit transpi-ration → (ii) → fruit calcium. Results show that fruit transpirationcouples Ca accumulation (the second step →(ii) → in that hypoth-esis), at least for higher values of cumulative transpired water.Nevertheless the idea is difficult to discuss against a literature back-ground as there is limited information on this, and especially sofor fruit. Most researchers have examined the model VPD and/orirradiance → transpiration