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All Journal Jurnal Ilmu Komputer dan Informasi Indonesian Journal of Agricultural Science Buletin Penelitian Tanaman Rempah dan Obat Jurnal AGRISEP: Kajian Masalah Sosial Ekonomi Pertanian dan Agribisnis
Rita Noveriza
Balai Penelitian Tanaman Rempah dan Obat Jalan Tentara Pelajar No. 3, Bogor 16111
Agriculture, Biological Sciences & Forestry Computer Science & IT Economics, Econometrics & Finance Library & Information Science

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SOIL MYCOFLORA OF BLACK PEPPER RHIZOSPHERE IN THE PHILIPPINES AND THEIR IN VITRO ANTAGONISM AGAINST Phytophthora capsici L. Noveriza, Rita; Quimio, Tricita H.
Indonesian Journal of Agricultural Science Vol 5, No 1 (2004): April 2004
Publisher : Indonesian Agency for Agricultural Research and Development - MOA

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

Foot rot disease of black pepper caused by Phytophthora capsici had been reported in Batangas and Laguna, Philippines. The plant was recovered following the application of crop residue (organic substrate) and intercropping with other crops. This study was aimed to isolate, identify, and determine the soil mycoflora from the rhizosphere of black pepper grown on various cropping patterns in Batangas and Laguna. Antagonisticactivity of mycoflora isolates was tested against P. capsici using dual culture technique. The result showed that 149 colonies of soil mycoflora isolated were belonging to 14 genera; three of them, i.e. Penicillium, Paecilomyces and Aspergillus, were the most dominant. All of the mycoflora isolates were able to inhibit the growth of the pathogen. Eighteen of them were the most promising antagonists, based on their inhibition growth of more than 60%. It is suggested that antagonistic mechanism of Mucor isolate (1001), Trichoderma (125, 170, 171, 179, 180, 181), Gliocladium (109), Cunninghamella (165, 168), Mortierella (177), and Aspergillus (106) was space competitor (competition for nutrient) since they rapidly overgrew the pathogen. Aspergillus (67, 79, 81, 83, 108, and 202) isolates inhibited the pathogen apparently by producing antibiotic, whereas Trichoderma (125, 170, 171, 179, 180, and181) isolates were able to penetrate the hyphae of the pathogen. The organic matter percentage in the soil was significantly correlated with the number of antagonistic mycoflora in rhizosphere (R2 = 0.1094), but the cropping pattern was negatively correlated. This study suggests that organic matter increased antagonistic mycoflora in black pepper rhizosphere, which will reduce severity of the disease.
UJI IN VITRO LIMBAH PABRIK ROKOK TERHADAP BEBERAPA JAMUR PATOGENIK TANAMAN Noveriza, Rita; Tombe, Mesak
Buletin Penelitian Tanaman Rempah dan Obat Vol 14, No 2 (2003): BULETIN PENELITIAN TANAMAN REMPAH DAN OBAT
Publisher : Pusat Penelitian dan Pengembangan Perkebunan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21082/bullittro.v14n1.2003.%p

Abstract

Dalam rangka pemanfaatan limbah produk sebagai bahan pengendali patogen tanaman yang bersifat alami dan diharapkan tidak berdampak negatif terhadap lingkung-an, maka dilakukan penelitian awal untuk mengetahui pengaruh limbah pabrik rokok kretek terhadap beberapa jamur patogen. Telah dilakukan pengujian pengaruh enam jenis limbah rokok kretek asal pabrik rokok terhadap beberapa jenis jamur patogen tanah (Fusarium oxysporum f.sp. vanillae, Colletotrichum gloeosporiodes, Rigidoporus lignosus dan Sclerotium rolfsii) secara in vitro di laboratorium Hama dan Penyakit Balai Penelitian Tanaman Rempah dan Obat dari bulan Juni sampai September 2000. Penelitian disusun dalam Rancangan Acak Lengkap dengan tiga ulangan. Hasil penelitian menunjukkan bahwa limbah rokok kretek asal pabrik rokok (terutama cengkeh matang dan tembakau) ternyata dapat menekan pertumbuhan beberapa jamur patogen tanah (F. oxysporum f.sp. vanillae, C. gloeosporiodes, R. lignosus dan S. rolfsii). Pada konsentrasi 0,2 %, cengkeh matang dapat menghambat lebih dari 50 % pertumbuhan jamur R. lignosus dan S. rolfsii, sedangkan terhadap jamur Colletotrichum sp. dan F. oxysporum hal tersebut terjadi pada konsentrasi 0,5 %. Pada konsentrasi 1 %, tembakau dapat meng-hambat lebih besar dari 50 % pertumbuhan jamur R. lignosus dan S. rolfsii, sedangkan untuk jamur C. gloeosporiodes dan F. oxysporium pada konsentrasi 2 %. Limbah pabrik rokok ini berpotensi untuk dimanfaatkan sebagai fungisida nabati.
PENGARUH INFEKSI VIRUS MOSAIK TERHADAP PRODUKSI DAN KADAR MINYAK TIGA VARIETAS NILAM Noveriza, Rita; Suastika, Gede; Hidayat, Sri Hendrastuti; Kartosuwondo, Utomo
Buletin Penelitian Tanaman Rempah dan Obat Vol 23, No 1 (2012): BULETIN PENELITIAN TANAMAN REMPAH DAN OBAT
Publisher : Pusat Penelitian dan Pengembangan Perkebunan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21082/bullittro.v23n1.2012.%p

Abstract

Penyakit mosaik tercatat sebagai salah satu faktor pembatas dalam produksi tanaman nilam (Pogostemon cablin). Penelitian ini dilakukan untuk mengukur pengaruh infeksi virus penyebab penyakit mosaik terhadap produksi dan kadar minyak tanaman nilam. Bahan yang digunakan dalam penelitian ini adalah tiga varietas unggul tanaman nilam yaitu Sidikalang, Lhokseumawe dan Tapak Tuan. Infeksi Potyvirus berhasil dideteksi pada varietas Tapak Tuan dan Lhok-seumawe berdasarkan hasil metode ELISA. Pengukuran berat terna basah, terna kering, kadar minyak dan kadar patchouli alcohol (PA) yang dilakukan pada tanaman berumur enam bulan menunjukkan terjadinya penurunan produksi dan kadar minyak. Penurunan tertinggi berat terna basah, terna kering, kadar minyak dan kadar PA berturut-turut dapat mencapai 34,65, 40,42, 9,09 dan 5,06%.
KAJIAN TEKNO EKONOMI PAKET TEKNOLOGI BAKTERI PERAKARAN PEMACU PERTUMBUHAN TANAMAN (BP3T) PUPUK KANDANG DAN NANO PESTISIDA SERAI WANGI PADA USAHA TANI KAKAO DI KABUPATEN LIMA PULUH KOTA Wahyuni, Sri; Rahma, Haliatur; Trisno, Jumsu; Martinius, Martinius; Noveriza, Rita; Reflin; Yuliani, Sri; Nusyirwan, Nusyirwan; Nefri, Jhon
Jurnal AGRISEP JURNAL AGRISEP VOL 19 NO 01 2020
Publisher : Badan Penerbitan Fakultas Pertanian, Universitas Bengkulu

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (624.533 KB) | DOI: 10.31186/jagrisep.19.1.68-82

Abstract

Plant Growth Promoting Rhizobacteria (PGPR) plus manure technology is designed to control the vascular streak dieback disease (VSD) which attacks cocoa plants, and improve the plant growth. This research aims to compare the cost of using conventional manure and PGPR plus manure technology. This research was designed in a descriptive quantitative approach using cencus data of 43 people who use PGPR plus manure in Kabupaten Limapuluh Kota. The result shows that the conventional fertilizer costs is more expensive than the PGPR plus manure formula. Therefore, it PGPR plus manure formula is recommended for the cacao farmers in Kabupaten Limapuluh Kota.
Classification of Clove Leaf Blister Blight Disease Severity Using Pre-trained Model VGG16, InceptionV3, and ResNet Pramesti, Putri Ayu; Supriyadi, Muhamad Rodhi; Alfin, Muhammad Reza; Noveriza, Rita; Wahyuno, Dono; Manohara, Dyah; Melati; Miftakhurohmah; Warman, Riki; Hardiyanti, Siti; Asnawi
Jurnal Ilmu Komputer dan Informasi Vol. 17 No. 2 (2024): Jurnal Ilmu Komputer dan Informasi (Journal of Computer Science and Informatio
Publisher : Faculty of Computer Science - Universitas Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21609/jiki.v17i2.1237

Abstract

Clove is one of the precious plants produced in Indonesia. Clove has many benefits for humans, but clove cultivation often experiences problems due to disease attacks, including Leaf Blister Blight Disease(CDC). The handling of CDC disease is carried out based on the severity of the symptoms that can be seen on the affected leaves. This research was conducted to obtain a CDC disease classification model, so appropriate treatment can be carried out. This study used the pre-trained VGG16, InceptionV3, and ResNet models for classification. VGG16 got the highest average accuracy of 96.7%. Aside from that, k-fold cross validation improved the model's accuracy.
Co-Authors Alfin, Muhammad Reza ASNAWI Dono Wahyuno Dyah Manohara GEDE SUASTIKA Haliatur Rahma, Haliatur Jumsu Trisno Martinius Martinius Melati MESAK TOMBE, MESAK Miftakhurohmah Nefri, Jhon Nusyirwan Nusyirwan Putri Ayu Pramesti, Putri Ayu Reflin Siti Hardiyanti SRI HENDRASTUTI HIDAYAT Sri Wahyuni Sri Yuliani Supriyadi, Muhamad Rodhi Tricita H. Quimio UTOMO KARTOSUWONDO Warman, Riki