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All Journal Majalah Ilmiah Biologi BIOSFERA: A Scientific Journal
Soenartiningsih Soenartiningsih
Balai Penelitian Tanaman Serealia, Maros
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Environmental Science

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Potensi Jamur Mikoriza Arbuskular dalam Mengendalikan Penyakit Busuk Pelepah pada Tanaman Jagung Soenartiningsih Soenartiningsih
Majalah Ilmiah Biologi BIOSFERA: A Scientific Journal Vol 29, No 1 (2012)
Publisher : Fakultas Biologi | Universitas Jenderal Soedirman

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20884/1.mib.2012.29.1.232

Abstract

Sheath blight disease is important disease on maize, it caused by Rhizoctonia solani. biological control using arbuscular mycorrhizal is assumed can reduce expansion of the soil borne disease. The experiment was carried out using arranged in completely randomized design of factorial, with different density spore and two isolate of AM fungus ie: Glomus sp and Acaulospora mellea. There were three replicates arbuscular mycorrhizal at 100-300 spore per 10-30 grams propagule was inoculated to each planting hole and inoculated R. solani fungi 30 days after planting. Sheath blight disease observation was taken 10-50 days after inoculation R. solani, while observation their  histology stalk and root at 50 days after inoculation of R. solani. The result of the experiment that inoculation  of AM fungus with 100-300 spore have potential to control sheath blight disease on maize. At the plant infected by AM fungi isolate of Glomus sp its emphasis reach of 21,9%–40,98%, while infected by A. mellea emphasis reach 21,48%–39,93%. The damage of stalk tissue at the plant infected by R. solani was more acute than at the plant infected by both R. solani and mycorrhizal fungus even they had the same symptom, that was an necrosis at their stalk tissue. The plant infected by R. solani and mycorrhizal fungus were not different with the root tissue of healthy plant.
Uji Ketahanan beberapa Varietas Unggul Jagung terhadap Penyakit Gibberella dan Diplodia Soenartiningsih Soenartiningsih
Majalah Ilmiah Biologi BIOSFERA: A Scientific Journal Vol 32, No 2 (2015)
Publisher : Fakultas Biologi | Universitas Jenderal Soedirman

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20884/1.mib.2015.32.2.301

Abstract

Gibberella and Diplodia ear rot is a disease that can damage the corn cobs and corn kernels resulting in lower quality and quantity of seed. The objective of the research are to find the varieties of corn which are resistant  the ear  rot disease Gibberella and Diplodia. This study was conducted in Limang Karo regency, North Sumatera, a randomized block design with three replications, each treatment comprised 4 rows and each row contained 25 plants with a spacing of 75 x 20 cm. The results showed 25 Hybrid maize tested against Gibberella ear rot there are 7 Hybrid corn hybrids that are resistant to ear rot  Kenia-2, NK33, Bima 3, Bima 10 Bima 12 Q, NEI-9008 and X8B649 (check resistance) and moderately resistance there are 9 hybrid that Kenia-3, DK979, NK22, P12, Gumarang, Srikandi putih, Lamuru and Sukmaraga  and 9 hybrid to ear rot disease were reacted susceptible and highly susceptible. Whereas from 25 Hybrid maize tested against Diplodia ear rot there are 6 Hybrid corn hybrids resistant to ear rot disease is Kenia - 2, NK33, Bima 3, Bima 12 Q, NEI-9008 and X8B649 (check resistance) while that is moderately resistancet there are 11 hybrid that is Kenia-3, DK979, NK22, P29, Bisi 2, P12, Bima 10, Gumarang, Srikandi putih, Lamuru and Sukmaraga, while 8 hybrid others were reacted susceptible and highly susceptible.
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