Flowering and Fruit Set of Java Apple (Syzygium samarangense (Blume) Merr. & Perry) cv. ùThabthimchanû as Affected by 4 Training Systems in High Density Planting

Abstract

Effects of 4 training systems in high density planting on flowering and fruit set of Java apple cv.‘Thabthimchan’ in the second bearing year were investigated at the experimental field of Department ofHorticulture, Faculty of Agriculture at Kamphaeng Saen, Kasetsart University from May 2005 to June2006. The training systems included open center, slender spindle, palmette and Y-trellis. All trainingsystems showed significant difference in number of inflorescences, number of flowers, percentage of flowerand fruit drop and percentage of bagged fruit drop. However, there were no significant difference innumber of flower per inflorescence, percentage of fruit set and percentage of fruit thinning among 4training systems. The highest number of inflorescences, number of flowers, percentage of flower and fruitdrop and percentage of bagged fruit drop were occurred on open center training system, while the lowestpercentage of flower and fruit drop and percentage of bagged fruit drop were occurred on Y-trellis trainingsystem.

Keywords : Training System / High Density Planting / Fruit Set / Thabthimchan / Flowering / OpenCenter / Slender Spindle / Palmette / Y-trellis / Java Apple / Syzygium Samarangense