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All Journal Planta Tropika JURNAL HAMA DAN PENYAKIT TUMBUHAN TROPIKA Jurnal Agro Industri Perkebunan Jurnal Agrotek Tropika Jurnal Agrotropika Jurnal Pepadun Jurnal Pengabdian Fakultas Pertanian Universitas Lampung Jurnal Proteksi Agrikultura
Suskandini Ratih Dirmawati
Jurusan Agroteknologi Fakultas Pertanian Universitas Lampung
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Chemistry Computer Science & IT

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Journal : Jurnal Agrotropika

 1 
PENGARUH FUNGISIDA METALAKSIL-M TERHADAP KETERJADIAN PENYAKIT BULAI DAN PRODUKSI POPULASI JAGUNG LAGALIGO X TOM THUMB Utomo, Setyo Dwi; Islamika, Nur; Dirmawati, Suskandini Ratih; Ginting, Cipta
JURNAL AGROTROPIKA Vol 15, No 2 (2010): Agrotropika Vol.15 No.2 2010
Publisher : JURNAL AGROTROPIKA

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (226.482 KB)

Abstract

The objective of this study was to evaluate the effect of the application of Metalaksil-M on the disease incidence of downy mildew (Peronosclerospora maydis) and the yield of early-maturing corn genotype LL/TT-1. The experiment was arranged in randomized complete block design with three replications. Treatments consisted of Metalaxyll-M (300 ml in 1000 ml water) applied to the seeds (soaked for 1 minute), applied by spraying to the plants 7 days after planting, and the control. The results showed that the genotype LL/TT-1 was not resistant to downy mildew. The dry weight of ear and seeds per 12 plants harvested from plants were 70 and 72% higher than those of control respectively. The dry weight of ear and seeds per 12 plants harvested from plants sprayed with Metalaxil-M were also significantly higher than those of control.Key words: Peronosclerospora maydis, metalaxyl, seed treatment, Zea mays L.
APLIKASI KITOSAN UNTUK PENGENDALIAN PENYAKIT BUSUK BUAH KAKAO (Phytophthora megakarya L.) Septiana Septiana; Suskandini Ratih Dirmawati; Rusdi Evizal
JURNAL AGROTROPIKA Vol 19, No 1 (2020): Jurnal Agrotropika Vol 19 No 1, Mei 2020
Publisher : Universitas Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (586.91 KB) | DOI: 10.23960/ja.v19i1.4361

Abstract

Research on the effect of chitosan concentration on the severity of cocoa pod rot in three different sizes of cocoa pods carried out at the smallholder cocoa plantations in Taman Endah Village, East Lampung Regency using local hybrid cocoa. Data analysis was using analysis of variance (ANOVA) and continued with Duncan's multiple range test at 5% level. The results showed that the severity of fruit rot at cocoa pod sprayed with copper oxide 56% and chitosan 0.6% was lower than the severity of fruit rot with application of chitosan 0.2%, 0.4%, and 0.8% and control..Keywords: application, chitosan, cocoa pod rot disease
Inventarisasi Penyakit dan Analisis Pertanaman Jagung (Zea mays L.) dari Aplikasi Berbagai Jenis Biochar dan Pupuk Fosfor Dini, Aci Prima; Dirmawati, Suskandini Ratih; Septiana, Liska Mutiara; Aeny, Titik Nur; Wibowo, Lestari
JURNAL AGROTROPIKA Vol. 23 No. 1 (2024): Jurnal Agrotropika Vol 23 No 1, Mei 2024
Publisher : Universitas Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/ja.v23i1.8355

Abstract

Maize is a leading commodity for industrial materials and food suppliers. However, corn productivity is not maximized which is caused by several factors such as physical (climate and soil type), biology (pests, pathogens, weeds), and socio-economic factors of farmers. 25% of soil types in Indonesia are Ultisol which is characterized by low pH, available P, C-organic, and productivity. There are important maize diseases that may cause yield loss such as downy mildew, blight, rust, and midrib rot. Therefore, sustainable productivity improvements are required, specifically the application of biochar and phosphor. Biochar can increase pH, C-organic, available plant nutrients, and suppress several plant diseases. This research aimed to inventory important maize diseases, the effect of biochar, phosphor, and their interaction on disease severity and incidence, growth, production, soil pH, and C-organic. This research was designed in factorial Randomized Group Design with the factors biochar with four treatment levels included no biochar (B0), rice husk biochar (B2), corn cob biochar (B2), and cassava stalk biochar (B3) at a dose of 10 tons.ha-1 and phosphor with two treatments level included no phosphor (P0) and phosphor at a dose of 222.2 kg.ha-1 (P1). The results showed that there were four important diseases after application of biochar and phosphor, which are downy mildew (Peronisclerospora sp.), blight (Bipolaris maydis), southern corn rust (Puccinia polysora), and midrib rot (Fusarium spp.). Biochar corn cobs and cassava stems suppress the incidence of blight at 6th week. Biochars increase plant height, production, and soil pH. Interactions of biochar and phosphor increase plant stem diameter. Keywords: Biochar, Disease, Maize, Phosphor
Co-Authors A.A. Ketut Agung Cahyawan W adawiah adawiah, adawiah Adi Setiawan Agus Karyanto Agus Karyanto Agus M Hariri Agus Muhammad Hariri Agus Muhammad Hariri, Agus Muhammad Agus Pranyata Ali, Mufty Anak Agung Gede Sugianthara Andi Irwansyah Andi Setiadi Anintyas, Dytri Anise Wulandari Annisa Fitri, Annisa Annisa Lesmana Ari Saputra Cipta Ginting Cipta Ginting Cipta Ginting Ginting Cipta Ginting, Cipta Dad Resiworo Jekti Sembodo Dad Resiworo Sembodo, Dad Resiworo Deciana Deciana Denny Marini Sihite Dermiyati Dermiyati Dermiyati, Dermiyati Dini Aprilia Dini, Aci Prima Efri Efri Efri Efri Efri, Efri Eka Kusumawati, Eka Erni Aslinda Fajryah, Jeanette Febi Eka Febriansyah Fembriarti Erry Prasmatiwi Fitria Fitria Franciscus Xaverius Susilo, Franciscus Xaverius Galih Prasetyo Geraldo Sandy Hardy Muhammad Ridwan Hasriadi Mat Akin Helina, Selvi I GEDE SWIBAWA, I GEDE Indah Puspita Dewi Indriyati . Irwan Adi Pribadi Islamika, Nur Ivayani Ivayani Ivayani Ivayani Ivayani Ivayani Ivayani Ivayani Ivayani, Ivayani Jayanti, Watini Hefri Joko Prasetyo Joko Prasetyo Khusmayudi, Khusmayudi Kristina Hayu Herwidyarti Kus Hendarto Kus Hendarto, Kus Kushendarto Kushendarto Lambang Kawilarang Lestari Wibowo Lestari Wibowo Lestari Wibowo Mareli Telaumbanua Maryana Maryana, Maryana Masoyogie, Kholfira Maya Gusmarini Maya Gustina Muhammad Imam Suryadi Muhammad Nurdin Muhammad Nurdin Muhammad Nurdin Muhammad Nurdin Muhammad Nurdin Muhammad Nurdin Muhammad Nurdin Novenda Novenda Nyimas Sadiyah Oryza Wahyu Setiawan Prasojo, Ibnu Pratiwi Iswari Purnomo Purnomo Purnomo Purnomo Radix Suharjo Radix Suharjo Radix Suharjo Ramadhani, Fathia Ramasta Nesya Elvara Reny Destya Angrum Reza Baharsyah Reza Putri Ristya Irma Wardhani Rosma Hasibuan, Rosma Rudianto Butarbutar Rugayah Rugayah Ruruh Anjar Rwandini, Ruruh Anjar Rusdi Evizal Sa'diyah, Nyimas Sadiyah, Nyimas Safitri, Khofifah Nur Indah Saraswati, Kadek Dwi Sari, Ni Nengah Yulyani Purnami Selvi Anasari Selviani, Zakiah SEPTIANA SEPTIANA Septiana Septiana Septiana Septiana Septiana, Liska Mutiara Setyo Dwi Utomo Setyo Widagdo Setyo Widagdo Solikhin ., Solikhin Solikhin Solikhin Solikhin Solikhin Sri Yusnaini Sri Yusnaini Sudi Pramono Sudiono Sudiono Sugiatno Sugiatno Sugiatno Sugiatno Suputa Suputa Titik Nur Aeny Titik Nur Aeny Titik Nur Aeny Tri Maryono Wahyudi Wahyudi Wardhana, Rachmansyah A. Wati, Tri Agus Setiya Widodo, Soesiladi Esti Yohan Yogaswara Yohannes C Ginting Yohannes Cahya Ginting Yuktika Yuktika Yulida Sarif Hidayat Yunita Fitri Astuti YUSNITA YUSNITA Yuyun Fitriana Zulferiyenni, Zulferiyenni