Peran Bakteri Bacillus subtilis terhadap Pertumbuhan dan Produksi Dua Varietas Bawang Merah (Allium ascalonicum L.) Asal True Shallot Seed

Abstract

Increasing shallot production from True Shallot Seed (TSS) can be done using Bacillus subtilis bacteria.This research aims to determine the role of Bacillus subtilis bacteria on the growth and production of two varieties of shallots (Allium ascalonicum L.) from True Sallot Seed. This research was carried out on Jl. Bandar Meriah, Sukamaju village, Sunggal subdistrict, Deli Serdang district with a height of 30 m above sea level. This research was conducted from December 2022 to March 2023. This research used a randomized block design with two factors and three replications. The first factor is varieties with two types: Sanren F-1 and Lokananta. The second factor is Bacillus subtilis bacteria with 4 levels: 0 ml/plant, 5 ml/plant, 10 ml/plant, and 15 ml/plant. The results showed that the Lokananta variety had plant heights of 5 and 7 MSPT, number of leaves 4-7 MSPT, chlorophyll B, total chlorophyll, fresh tuber weight per sample, fresh tuber weight per plot, dry tuber weight per sample and dry tuber weight per plot. which is higher than the Sanren F-1 variety. Giving 15 ml of Bacillus subtilis bacteria/plant has tuber circumference, number of tubers per plot, weight of fresh tubers per plot, weight of dry tubers per sample, weight of dry tubers per plot, which is higher than giving bacteria of 0 ml/plant, 5 ml/plant and 10 ml/plant.