The Characteristics of Fruit Growth Rate in Different Tomato Cultivars with Single-truss Using the High-density Planting System

抄録

In this study, we investigated the differences between Japanese tomato cultivar ‘CF Momotaro York’ and Dutch tomato cultivars ‘Endeavour’ and ‘Managua’ in characteristic of growth rate and temperature of fruit with single-truss using the highdensity planting system. Total dry weight in Dutch was higher than that in Japanese cultivars. Although the fresh fruit yield was not significantly different between Japanese and Dutch cultivars, Japanese cultivar showed higher total soluble solids content and higher distribution ratio of dry matter to the fruit than those in Dutch cultivars. No differences were observed in the required time for fruit development between the Japanese and Dutch cultivars. Fruit temperature at the end of development was higher in Dutch cultivars than Japanese cultivar, which induce the yield reduction in Dutch cultivars. These results indicated that the Japanese cultivars have the characteristics of efficient fruit production compared to Dutch cultivars under low-node order pinching and high-density planting system.