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All Journal Agrovigor: Jurnal Agroekoteknologi
Achmad Amzeri
Department of Agricultural Science and Technology, Faculty of Agriculture, Universitas Trunojoyo Madura, Bangkalan 69162, East Java, Indonesia.
Agriculture, Biological Sciences & Forestry

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Evaluation of downy mildew resistance in several corn varieties Gita Pawana; Achmad Amzeri; Ahmad Syaiful Umam; Achmad Djunaedy; Zuli Ika Sulistyowati
Agrovigor Vol 19, No 1 (2026)
Publisher : Universitas Trunojoyo Madura

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21107/agrovigor.v19i1.33435

Abstract

Peronosclerospora spp. are pathogens causing powdery mildew disease in corn. The increasing number of corn varieties available in the market leads to fluctuations in powdery mildew levels in corn production centres. This study aims to improve the resistance of several corn varieties to powdery mildew by examining stomatal and trichome function and identifying the pathogens involved. This study was conducted in Morosunggingan Village, Peterongan District, Jombang Regency, in October-November 2025, and involved the observation of 0.5 ha of corn plants. Sampling was carried out every 4 days for each variety, starting 4-26 days after planting. The observed parameters analysed included disease incidence, disease severity, AUDPC value, stomatal and trichome density, and the pathogen causing powdery mildew. The conclusions that can be put forward are: 1) Andalan NK007 and Pioneer P40 varieties are more resistant to powdery mildew disease attacks than Berlian 415 varieties. 2) Lower stomatal density and higher trichomes contribute positively to the level of resistance to powdery mildew disease attacks. 3) The powdery mildew disease attack in Morosunggingan Village, Peterongan District, Jombang Regency, was caused by the fungal pathogen Peronosclerospora
Co-Authors Achmad Djunaedy Ahmad Syaiful Umam Gita Pawana Zuli Ika Sulistyowati