Open AccessEndogenous hormone causes flower and fruit drop of wax apple (Syzygium samarangense cv. Citra)
Author(s) -
Etik Wukir Tini,
Totok Agung Dwi Haryanto,
Sakhidin Sakhidin,
Saparso Saparso
Publication year - 2021
Publication title -
advances in horticultural science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.249
H-Index - 24
eISSN - 1592-1573
pISSN - 0394-6169
DOI - 10.36253/ahsc-9663
Subject(s) - anthesis , zeatin , gibberellin , horticulture , ripening , sugar , kinetin , bud , wax , biology , cytokinin , botany , annual growth cycle of grapevines , chemistry , auxin , cultivar , explant culture , food science , shoot , biochemistry , gene , in vitro
The aim of this study was to obtain information about the content of endogenous hormones that causes owers and fruit drop of wax apple. The variables observed in the six stages of ower and fruit development that drop easily and retention of indole-3-acetic acid (IAA), cytokinin (zeatin and kinetin), gibberellins (GA3), 1-amino cyclopropane-1-carboxylic acid (ACC), total sugar, and starch. Six stages of development of wax apple fruit: (1) Bud Development (initial owering) 0-3 days before anthesis. (2) Anthesis (perfect blooming owers), 0-7 days after anthesis. (3) Fruit set, 7-14 days after anthesis. (4) Fruit development, 14-28 days after anthesis. (5) Fruit Maturation, 28-35 days after anthesis. (6) Fruit ripening, 35-50 days after anthesis. The results showed that the content of IAA, zeatin, GA3, and total sugar of owers and fruit of wax apple at 6 stages that would fall smaller than those of retention and ACC content and starch was higher in ower and fruits that drop easily than retention. The kinetin content in the ower development that drop easily is smaller than the retention but in the fruit development the kinetin content is not signicantly dierent between those that drop easily and retention.