Increasing production of various garlic local cultivars in off season by gliocompost

Abstract

Garlic in off season will be faced low production with poor quality tubers. Gliocompost which contains active ingredients of gliocladium can function as a biocontrol and biofertilizer. The aim of this research was to increase the bulb production of various cultivars of garlic in off season by using gliocompost. The research was conducted in Cianjur Regency, West Java, Indonesia, with an altitude of 1,320 m above sea level from August 2018 to January 2019 at -6.75908, 107.02897, 1334, 318. The research used a factorial randomized block design with two factors. The first factor of garlic cultivar consisted of five cultivars, namely Lumbu Putih (LP), Lumbu Kuning (LK), Lumbu Hijau (LH), Tawangmangu Baru (TB), and Sangga Sembalun (SS). The second was gliocompost, namely with and without gliocompost with six replications. Gliocompost application was given before planting at a dose of 5 kg per 200 kg of manure for 1 ha. The data observed were shoot emergence (%), plant height (cm), bulb diameter (cm), yield per ha (ton), yield per plot (ton), live plants (%), and production gap (%). Data were analyzed by analysis of variance and if there was a significant difference, then it was followed by the Duncan test at the 95% confidence level. Heatmap analysis was performed using the R Studio program. The results showed that the use of gliocompost did not affect the yield per ha of LK and SS, but it could increase yield per ha of LH, TB, and LB, increase yield per plot and decrease percentage of production gap of LP. Gliocompost increased bulb diameter. LP had a higher bulb diameter and percentage of live plants than LK.