Flower Position on Main Stem and Branches Affect Fruit Set in Citrus Plant (Nobillis Var, Microcarpa L)

Abstract

The aim  of the research  is to  find  out  best  citrus  flower  position  (shot  tips or axillary shoot) in relation to fruit formation ‘Seam\u27 citrus. The research was done on Citrus which belongis to the farmer at Catur village, district Kintamani, Bangli Regency, Bali. The research was conducted from May 2014 -April 2015. Ten years old Citrus plants were used in this study.  Five Plants were chosen.  Flower  development  and  fruit  formation  were observed  on six  different  positions on  the  plant,  i.e. main stem: lower  part, middle  part  and an upperpart, and  branch which include lower axillary part of the branches, middle axillary branch and on the tips. Variable observed were a number of flowers developed, both in main stem and branches during on-season and off-season flowering time. Another observation was a number of fruits developed on each position. Results show that flower best on lower axillary branches, both during on-season (54,16%)the base and off-season (45,02%). Flower developed on the tips were much lower, bot on-season (6,90%) and off-season (12,50%). The highest number of fruits was also achieved attheloweraxillary branch during on-season (52,23 %) and off-season (35,27 %