Respon Pertumbuhan True Shallot Seed Tiga Varietas Bawang Merah (Allium ascalonicum L.) terhadap Aplikasi Giberelin di Kabupaten Langkat

Abstract

Shallots (Allium ascalonicum L.) is a horticultural commodity that has long been cultivated by farmers because it has many benefits in terms of economics and nutritional content. One of the problems with propagating plants by seed is that they have low growth capacity. Efforts to increase the germination carrying capacity of the growth and productivity of shallot plants in Langkat Regency are through the use of adaptive varieties and the application of gibberellins. This research aims to determine the growth response of three shallot varieties from TSS to location-specific gibberellin administration in Langkat Regency. This research was carried out on land in Purwobinangun Village, Sei Bingai District, Langkat Regency at an altitude of ± 75 meters above sea level starting from April 2023 to August 2023. The design used in this research was prepared in a Factorial Randomized Block Design consisting of 3 replications with 2 treatment factors. The first factor is the shallot variety with 3 levels, namely the Sanren Variety (V1), Lokananta Variety (V2) and Maserati Variety (V3). The second factor is gibberellin which consists of 4 levels, namely without gibberellin (K0), 50 ppm gibberellin (K1), 100 ppm gibberellin (K2), and 150 ppm gibberellin (K3). The research results showed that different variety treatments had a significant effect on the germination percentage. Different gibberellin concentration treatments had a significant effect on germination percentage, plant height at 8 MSPT, number of leaves per hill at 8 MSPT, harvest age, tuber wet weight and tuber dry weight. The interaction of different varietal treatments and gibberellin concentrations had a significant effect on germination percentage and plant height at 8 MSPT.