Translated automatically from Indonesian.
Biru Lancor appears in the archives of a Probolinggo seed grower; Ronggojalu was registered as a local variety in 2025.
Biru Lancor in the warehouse archives
Directorate General of Horticulture archives about the Probolinggo seed warehouse mention Biru Lancor in shallot stocks. Muhasan, a seed grower who according to the report is domiciled in Tegalsiwalan Village, explains supply from several areas. The report discusses conditions ahead of March 2016, not the current warehouse conditions.
Ronggojalu registered in 2025
Official news of Plant Variety Protection records the registration of Ronggojalu by the Probolinggo Regency Government on August 4, 2025. The written geographic distribution covers Tegalsiwalan, Leces, Dringu, and Gending Districts.
The document describes tubers that are dark purplish red and a harvest age of 62–68 days. This is a variety description, not a guarantee of yield for every plot. The district coverage does not prove that all farmers in Tegalsiwalan Village grow it. The photo of tubers on this page comes from Brebes and is only a shallot illustration.
Sources
Directorate General of Horticulture — Probolinggo shallot archives
PPVTPP Ministry of Agriculture — Ronggojalu registration, 2025
