Strawberry quality is mostly affected by cultural application such as irrigation and fertilization. In this study,
beside of full irrigation (IR100); 50% (IR50), 75% (IR75) and 125% (IR125) were performed different level by drip irrigation. Also, bio-activator which named Comcat, is produced from seaweed and special wild plant. Applications were applied additional with irrigation levels. Their effects on fruit quality such as fruit size (diameter, length and weight), TSS, acidity, pH and ratio of TSS (Total Soluble Solid) with titratable acidity were investigated during active harvest period (March-May). As a result of this study, fruit size was completely determined by the growing period. All fruit size (diameter, length and weight) was found the lowest in May due to increasing temperature and decreasing plant vigor. While the Bio-stimulant application negativity affected the TSS content, the IR50 irrigation regime was increased statistical significantly. Application and irrigation regimes not influenced pH value; however, it was increased throughout progressive harvest period from 3.45 (April) to 3.78 (May). Sugar/acid ratio was statistical significant level increased with progressive harvest time and by lowered water supply. The highest sugar/acid ratio was found in May at IR50 plot with 19.3 value. Also, the results were related to correlation
analyses. While the fruit size parameters were positively correlated with each other, these parameters were negatively correlated with pH and TSS which affected the eating quality
