Author

J. E. Rumbiak

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Open access Jul 2026

Effects of folic acid concentration and spraying frequency on the growth of Atlantic potato plantlets during acclimatization

Acclimatization is a stage in potato micropropagation because in vitro-derived plantlets must adapt to ex vitro conditions. This study evaluated the effects of folic acid concentration and spraying frequency on Atlantic potato (Solanum tuberosum L.) plantlet growth during acclimatization. A split-plot design with three...

Meiskia Zahrani, S. Susiyanti, J. E. Rumbiak et al. · Jurnal Ilmiah Pertanian · 0 citations

Open access Jul 2026

Comparative laboratory efficacy of three commercial organophosphate insecticides against fall armyworm (Spodoptera frugiperda) larvae

Fall armyworm, Spodoptera frugiperda, is a maize pest whose management remains dependent on synthetic insecticides. This study compared three organophosphate insecticides against third-instar S. frugiperda larvae. Chlorpyrifos, profenofos, and diazinon were evaluated at 5%, 20%, 50%, 75%, and 95% of the maximum label d...

Najma Ayu Koeswari, J. E. Rumbiak, Andree Saylendra et al. · Jurnal Ilmiah Pertanian · 0 citations