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All Journal AGROLOGIA : Jurnal Ilmu Budidaya Tanaman
Costanza Uruilal
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Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Environmental Science

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Serangan Perenosclerospora spp Pada Tanaman Jagung Di Desa Rumahtiga, Kecamatan Teluk Ambon Baguala Kota Ambon Angel E Matruti; A. Marthin Kalay; Costanza Uruilal
Agrologia Vol 2, No 2 (2013): Agrologia: Jurnal Ilmu Budidaya Tanaman
Publisher : Faculty of Agriculture, Pattimura University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30598/a.v2i2.265

Abstract

Peronosclerospora spp. is one of the fungal pathogen that causes downy mildew on corn, and can cause yield losses up to 100%. Field research has been done  to determine the development of Perenosclerospora spp. attack and contributing factors on corn at  corn plantation in Rumahtiga village. The experiment was conducted by using survey method at local farmer’s plantation where they cultivated corn in Taeno Hamlet, Talaga Pange, Air Ali, and Wailela areas. The results showed that downy mildew development in corn reached 8.92% which is belong to low diseases intensity. Cultivation techniques including  the use of hybrid varieties C1,  appropriate fertilization, crop rotation and weed control, as well as good sanitation were key factors of low scale infestation of Peronosclerospora spp. 
Pemanfaatan Kompos Ela Sagu, Sekam Dan Dedak Sebagai Media Perbanyakan Agens Hayati Trichoderma harzianum Rifai. Costanza Uruilal; A. Marthin Kalay; Elizabet Kaya; Adelina Siregar
Agrologia Vol 1, No 1 (2012)
Publisher : Faculty of Agriculture, Pattimura University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30598/a.v1i1.295

Abstract

The use of biological agents to prevent the growth of plant diseases is aimed at decreasing the capability of particular pathogen, preventing their growth and spread, reducing the infection and intensity of pathogenic attack to main plants. Trichoderma harzianum is commonly found in almost all types of soil, and is one of fungi that can be used as biological agents to control plant pathogens.  Growth and development of this fungi are mostly influenced by factors such as temperature, light, air, and pH.  It is also dependents on other nutrients such as carbon, nitrogen and plain carbohydrate which are contained in sago waste (ela), bran and rice husk. The objective of this study is to find out the utilization of sago waste, bran and rice husk as media to multiply the biological agents T. harzianum. The result of this study showed that sago waste compost could  be used as a medium to multiply the antagonist T. harzianum; when appropriately mixed with bran and rice husk (1:1:1 v/v), sago waste composts would be an effective media to develop the T. harzianum fungus. This mixture is better compared to sago waste composts, husk, sago waste composts and bran, and sago waste composts and husk. It is doe to the fact that in the media number of spore of T. harzianum (7,08 x 109/mL) increased and colony characteristics was dense..
Co-Authors A.M. Kalay Angel E Matruti Elizabet Kaya Siregar, Adelina