Inventarisasi Intensitas Penyakit Tanaman Bawang Merah (Allium cepa L.) di Desa Kedungwungu pada Sistem Tanam Mirip PHT dan Konvensional

Abstract

Shallots are one of the most important commodities in Indonesia, yet the production is challenged by pests and diseases, especially pathogens which cause plant diseases. Shallot farmers in Kedungwungu village have implemented a planting system similar to IPM, but their understanding regarding identification and symptoms of each disease is still limited. The aim of this study is to learn and compare the symptoms of each disease found in Kedungwungu village along with the disease intensity and their relationship with several abiotic factors (soil pH, soil temperature, soil moisture, air temperature, air humidity, and rainfall). This study uses planting systems as treatments (semi-IPM and conventional) carried out in two planting seasons. The results showed that shallot plants in this village are infected by a few diseases such as Fusarium wilt, anthracnose, Stemphylium leaf blight, and yellow mosaic (OYDV) with various and distinct symptoms. The analysis results showed a fairly consistent relationship (p-value < 0,05) between disease intensity and soil temperature, while its relationship with other abiotic factors showed no significant difference and couldn't be proven statistically. In addition, the implication of semi-IPM planting system is able to suppress several diseases during shallot production in both planting seasons compared to conventional planting system.