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Haryono Semangun
Fakultas Pertanian Universitas Gadjah Mada
Agriculture, Biological Sciences & Forestry

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Peranan Asam Salisilat pada Interaksi Inang-Patogen Penyakit Kudis Ubijalar (Elsinoe batatas) Eko Agus Martanto; Christanti Sumardiyono; Haryono Semangun; Bambang Hadisutrisno
Jurnal Perlindungan Tanaman Indonesia Vol 9, No 2 (2003)
Publisher : Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/jpti.12243

Abstract

The role of salicylic acid on host-pathogen interactions of sweet potato scab disease (E. batatas) was done by measuring (1) the level of resistance of sweet potato cultivars to scab disease, (2) salicylic acid content in sweet potato leaves before inoculation, 3 days, 6 days, and 9 days after inoculation, and (3) effect of salicylic acid to the germination of E. batatas conidia. The result showed that there were different responses of sweet potato cultivars to pathogens infection. Inoculation with E. batatas isolate from Wonosobo (WO2) showed resistant reaction on Muaratakus, moderate resistant on Cangkuang, moderate susceptible on Malothok, and susceptible on Mlg 12549. Resistant cultivar (Muaratakus) has higher salicylic acid content than moderate resistant (Cangkuang), moderate susceptible (Malothok), and susceptible cultivar (Mlg 12549). Salicylic acid inhibited germination of E. batatas conidia.
Ketahanan Ubi Jalar terhadap Penyakit Kudis Eko Agus Martanto; Haryono Semangun; Christanti Sumardiyono
Jurnal Perlindungan Tanaman Indonesia Vol 3, No 2 (1997)
Publisher : Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (6238.02 KB) | DOI: 10.22146/jpti.12959

Abstract

The experiment was conducted to know the resistance of sweet potato cultivars to scab caused by Elsinoe batatas, the incubation period, and the influence of stomatal density to the resistance of the host. The test showed that Malothok, Mlg 12538, and Prambanan cultivars were moderately resistant, while Ciceh-5 was resistant. The incubation period on Ciceh-5 was longer than that on the other moderately resistant cultivars. On resistant cultivar, stomatal density was lower than that on moderately resistant cultivars.
Co-Authors Bambang Hadisutrisno Christanti Sumardiyono Eko Agus Martanto Eko Agus Martanto