Gibberellic Acid Application Causes Erratic Flowering on Young Corms of Amorphophallus muelleri Blume (Araceae)
Year: 2018
Type: article
Abstract: Flowering induction in Amorphophallus muelleriBlume is required for mass production of seeds within a short period of time.Hence, the objective of this study was to evaluate the effect of gibberellic acid (GA 3 ) application on flowering induction for non-flowering-aged corms (immature corms) in A. muelleri.Research was conducted at Leuwikopo Farm, Bogor-Indonesia in May 2015-August 2016.Dormant corms of bulbils (0 year), 1-, and 2-year-old were treated with 0, 500, 1000, 1500 and 2000 ppm GA 3 .A 3-year-old corm was used as an additional control.Results demonstrated that GA 3 application effectively induced flowering in 2-year-old corms.Bulbils flowered at a rate of 1.7-6.7% and 1-year-old corm at a rate of 2.8-16.7%irrespective of GA 3 levels; 100% and 50-100% of inflorescences, respectively, were abnormal leading to low seed production.The GA 3 application caused erratic flowering in bulbils and one-year-old corms, indicating age-dependentflowering in A. muelleri.The erratic flowering caused a detrimental effect on seed production.In this experiment, 2-year-old corms produced larger inflorescences and a lower number of abnormal inflorescences.Thus, application of GA 3 at a level of 1500 ppm on 2-year-old corms is recommended for mass production of A. muelleri seeds within a short period of time.In the future, it will be interesting to study the physiological mechanism of the erratic flowering phenomenon across corm age in A. muelleri.
Source: The Horticulture Journal
Institutions: IPB University, Tokyo University of Agriculture
Language: English
Subfield: Plant Science
Domain: Life Sciences
SDG: Zero hunger
Open Access status: diamond
OpenAlex ID: W2901752186