MOISTURE STRESS TO MAXIMIZE PROCESSING TOMATO YIELD AND FRUIT QUALITY
Low stress resulted in maximum yield of raw product, Mg/ha and best viscosity, but resulted in low soluble solids. High stress resulted in the lowest yields, highest soluble solids, and poorest viscosity. Intermediate stress resulted in some yield loss, but, substantially improved soluble solids with good viscosity.
Using potential evapotranspiration (ETo) and estimates of actual crop ET to properly control water management instead of scheduling irrigation on a calendar basis has allowed California tomato processors and growers to maintain high yields. Controlled moisture stress through irrigation management has also improved fruit quality and increased paste yield per ton of raw product.