Suskandini Ratih Dirmawati, Suskandini Ratih
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THE WHITE-BELLIED PLANTHOPPER (HEMIPTERA: DELPHACIDAE) INFESTING CORN PLANTS IN SOUTH LAMPUNG, INDONESIA Susilo, Franciscus Xaverius; Swibawa, I Gede; ., Indriyati; Hariri, Agus Muhammad; ., Purnomo; Hasibuan, Rosma; Wibowo, Lestari; Suharjo, Radix; Fitriana, Yuyun; Dirmawati, Suskandini Ratih; ., Solikhin; ., Sumardiyono; Rwandini, Ruruh Anjar; Sembodo, Dad Resiworo; ., Suputa
JURNAL HAMA DAN PENYAKIT TUMBUHAN TROPIKA Vol 17, No 1 (2017): MARET, JURNAL HAMA DAN PENYAKIT TUMBUHAN TROPIKA
Publisher : Universitas Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (427.494 KB) | DOI: 10.23960/j.hptt.11796-103

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The White-Bellied Planthopper (Hemiptera: Delphacidae) Infesting Corn Plants in South Lampung, Indonesia. Corn plants in South Lampung were infested by newly-found delphacid planthoppers. The planthopper specimens were collected from heavily-infested corn fields in Natar area, South Lampung. We identified the specimens as the white-bellied planthopper Stenocranus pacificus Kirkaldy (Hemiptera: Delphacidae), and reported their field population abundance.
UJI EFEKTIVITAS TEPUNG UMBI TEKI (CYPERUS ROTUNDUS L.) DALAM MENGENDALIKAN PENYAKIT ANTRAKNOSA PADA TANAMAN CABAI DILAPANG Sihite, Denny Marini; Nurdin, Muhammad; Dirmawati, Suskandini Ratih; Akin, Hasriadi Mat
Jurnal Agrotek Tropika Vol 8, No 1 (2020): Jurnal Agrotek Tropika Vol 8, Januari 2020
Publisher : Departement of Agrotechnology, Agriculture Faculty, Universitas Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1007.588 KB) | DOI: 10.23960/jat.v8i1.3670

Abstract

Penelitian ini bertujuan untuk mengetahui konsentrasi tepung umbi teki (Cyperus rotundus L.) yang efektif dalam mengendalikan penyakit antraknosa pada tanaman cabai. Penelitian ini dilaksanakan di Laboratorium Ilmu Penyakit Tanaman dan Laboratorium Lapang Terpadu Fakultas Pertanian, Universitas Lampung dimulai sejak bulan Agustus sampai November 2017. Perlakuan dalam penelitian ini disusun dalam Rancangan Acak Kelompok (RAK) dengan 4 ulangan.  Perlakuan terdiri dari kontrol (P0), fungisida propineb (P1), tepung umbi teki konsentrasi 5% (P2), tepung umbi teki konsentrasi 15% (P3), dan tepung umbi teki konsentrasi 25% (P4). Data yang diperoleh selanjutnya dianalisis dengan menggunakan sidik ragam dan kemudian dilanjutkan dengan uji beda nyata terkecil (BNT) pada taraf nyata 5% . Parameter yang diamati adalah keparahan penyakit, tinggi tanaman cabai, jumlah buah cabai, dan bobot buah cabai. Hasil penelitian menunjukkan bahwa tepung teki konsentrasi 5%, 15%, dan 25% efektif dalam menekan keparahan penyakit antraknosa pada tanaman cabai di lapang. Tepung teki dengan konsentrasi 5%,15%, dan 25%  memiliki keefektifan yang sebanding dengan fungisida propineb dalam menekan keparahan penyakit antraknosa pada tanaman cabai.
Kajian Kitosan Sebagai Agens Pengendali Penyakit Busuk Buah Kakao (Phytophthora megakarya L.) Septiana, Septiana; Dirmawati, Suskandini Ratih; Evizal, Rusdi
Jurnal Agro Industri Perkebunan Volume 6 No. 2, Oktober 2018
Publisher : Politeknik Negeri Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (0.036 KB) | DOI: 10.25181/jaip.v6i2.977

Abstract

Indonesia is a cocoa producing country with production of 425 thousand tons per year. However, production continues to decline, among others, caused by Phytopthora megakarya cause of fruit rot disease of cocoa, therefore it is necessary effective control of cacao fruit rot disease. This study aims to determine the effect of chitosan concentration on the growth of P. megakarya cause of fruit rot disease in vitro. The research was conducted at Plant Disease Laboratory, Department of Agrotechnology, Faculty of Agriculture, University of Lampung, from November 2012 to January 2013. V8 media research as a medium of growing P. megakarya.  The workshops are arranged in a complete randomized design (CRD) consisting of (1) V8 media without chitosan (2) V8 media 0,2%, (3) V8 media 0,4%, (4) V8 media 0,6%, (5) ) V8 media 0,8% (6) medium V8 fungicided copper oxide 56%, and replicated six times. The results showed that the colonies growth of P. megakarya 6 days after incubation in V8 media 0,4%, 0,6%, 0,8% more depressed than growth on the V8 without chitosan media.   Keywords: concentration, disease control, in vitro, V8 media
Kajian Kitosan Sebagai Agens Pengendali Penyakit Busuk Buah Kakao (Phytophthora megakarya L.) Septiana, Septiana; Dirmawati, Suskandini Ratih; Evizal, Rusdi
Jurnal Agro Industri Perkebunan Volume 6 No. 2, Oktober 2018
Publisher : Politeknik Negeri Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (0.036 KB) | DOI: 10.25181/jaip.v6i2.977

Abstract

Indonesia is a cocoa producing country with production of 425 thousand tons per year. However, production continues to decline, among others, caused by Phytopthora megakarya cause of fruit rot disease of cocoa, therefore it is necessary effective control of cacao fruit rot disease. This study aims to determine the effect of chitosan concentration on the growth of P. megakarya cause of fruit rot disease in vitro. The research was conducted at Plant Disease Laboratory, Department of Agrotechnology, Faculty of Agriculture, University of Lampung, from November 2012 to January 2013. V8 media research as a medium of growing P. megakarya.  The workshops are arranged in a complete randomized design (CRD) consisting of (1) V8 media without chitosan (2) V8 media 0,2%, (3) V8 media 0,4%, (4) V8 media 0,6%, (5) ) V8 media 0,8% (6) medium V8 fungicided copper oxide 56%, and replicated six times. The results showed that the colonies growth of P. megakarya 6 days after incubation in V8 media 0,4%, 0,6%, 0,8% more depressed than growth on the V8 without chitosan media.   Keywords: concentration, disease control, in vitro, V8 media
PENGARUH BAKTERI Pseudomonas fluorescens dan Paenibacillus polymixa TERHADAP INTENSITAS PENYAKIT HAWAR UPIH SERTA PERTUMBUHAN TANAMAN JAGUNG HIBRIDA P27 Irwansyah, Andi; Dirmawati, Suskandini Ratih; Nurdin, Muhammad; Ginting, Cipta Ginting
Jurnal Agrotek Tropika Vol 7, No 1 (2019)
Publisher : Departement of Agrotechnology, Agriculture Faculty, Universitas Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1107.414 KB) | DOI: 10.23960/jat.v7i1.2985

Abstract

Jagung merupakan tanaman pangan penting di Indonesia, salah satu kendala dalam budidaya tanaman jagung adalah serangan penyakit hawar upih yang disebabkan oleh cendawan Rhizoctonia solani. Penelitian ini bertujuan untuk mengetahui pengaruh bakteri Pseudomonas fluorescens dan Paenibacillus polymixa terhadap intensitas penyakit hawar upih dan pengaruh terhadap pertumbuhan tanaman jagung. Penelitian ini dilakukan pada bulan Juli 2017 sampai bulan Agustus 2017, di Desa Rantau Minyak, Kecamatan Candipuro, Kabupaten lampung selatan. Penelitian disusun dalam rancangan acak lengkap (RAL) terdiri atas lima perlakuan dan empat ulangan. Perlakuan terdiriatas (1) P0 kontrol berupa tanaman jagung yang tidak diberi perlakuan fungisida serta bakteri P. polymixa dan bakteri P. fluorescens (2) P1 perendaman benih pada suspensi bakteri P. polymixa pada benihjagung selama 12 jam (3) P2 perendaman benih pada suspensi bakteri P. fluorescens pada benih jagung, selama 12 jam (4) P3 perendaman benih jagung pada suspensi bakteri P. polymixa dan bakteri P. fluorescens, selama 12 jam dan, (5) P4 perendaman benih jagung pada fungisida propineb 70 % selama 12 jam. Data yang diperoleh kemudian dianalisis dengan menggunakan sidik ragam kemudian dilanjutkan dengan uji Beda Nyata Terkecil (BNT) pada taraf nyata 5%. Hasil dari penelitian ini menunjukan bahwa penggunaan bakteri Pseudomonasfluorescens dan Paenibacillus polymixa tunggal dan campuran tidak berpengaruh terhadap penurunan intensita spenyakit hawar upih. Perlakuan menggunakan bakteri P. fluorescens dan P. polymixa secara tunggal memberikan pengaruh terhadap tinggi tanaman dan hasil produksi jika dibandingkan dengan perlakuan control dan perlakuan menggunakan fungisida Propineb 70%
EFFECTIVENESS OF THE APPLICATION OF ORGANIC MATTER AND TRICHODERMA VIRIDE FROM SUPPRESIVE SOIL TO CONTROL FUSARIUM WILT ON BANANA PLANT Ivayani, Ivayani; Ginting, Cipta; Yusnita, Yusnita; Dirmawati, Suskandini Ratih
JURNAL HAMA DAN PENYAKIT TUMBUHAN TROPIKA Vol 18, No 2 (2018): SEPTEMBER, JURNAL HAMA DAN PENYAKIT TUMBUHAN TROPIKA
Publisher : Universitas Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (169.383 KB) | DOI: 10.23960/j.hptt.218119-126

Abstract

Effectiveness of the application of organic matter and Trichoderma viride from suppresive soil to control fusarium wilt on banana plant. Fusarium wilt disease caused by Fusarium oxysporum f.sp. cubense is one of the problems in banana production. This research was aimed to evaluate the effect of  Trichoderma viride isolated from suppresive soil and organic matter on controlling fusarium wilt on banana plant. The efficcacy trial consisted of 12 treatments and four replications within each treatment. Each experimental unit consisted of 10 plants. Organic matters used were rice straw, cassava peel, and compost. Treatments were arranged in a randomized complete block design. Data obtained were analyzed by analysis of variance followed by orthogonal analysis (P?0.05). Application of T. viride suppressed disease incident up to 65%. The highest disease incident occurred in plants treated without T. viride and organic matter and in plants treated with organic matter only (78.33%). Disease incidence in plants treated with T.viride was lower than those treated with the combination of T. viride and organic matter. Different application times (in nursery or soil medium) did not significantly affect fusarium wilt incidence. The type of organic matter did not significantly affect the incidence and severity of fusarium wilt.
UJI KEMAMPUAN ISOLAT JAMUR TRICHODERMA SPP. SEBAGAI ANTAGONIS GANODERMA BONINENSE DAN PLANT GROWTH PROMOTING FUNGI (PGPF) Yogaswara, Yohan; Suharjo, Radix; Dirmawati, Suskandini Ratih; Ginting, Cipta
Jurnal Agrotek Tropika Vol 8, No 2 (2020): JURNAL AGROTEK TROPIKA VOL 8, MEI 2020
Publisher : Departement of Agrotechnology, Agriculture Faculty, Universitas Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (693.047 KB) | DOI: 10.23960/jat.v8i2.3904

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This study aims to determine the ability of Trichoderma spp. Isolate that collection of Biotechnology Laboratory, Faculty of Agriculture, University of Lampung as an antagonist againstGanoderma boninense and also its ability as a Plant Growth Promoting Fungi (PGPF). Testing of Trichoderma spp. as an antagonist include tests for growth, spore density, and viability. Testing of Trichoderma spp. as PGPF (Plant Growth Promoting Fungi) using cucumber plants F1 variety to obtain the ability of Trichoderma spp. in improving cucumber plant performance. The data obtained were analyzed by analysis of variance and further tested DMRT (Duncan's Multiple Range Test) at 5% level. The results showed that all isolates of Trichoderma spp.  can act as an antagonist againstGanoderma boninense. In the PGPF test, there were 3 isolates of Trichoderma spp. which showed the best performance as a plant growth promoting namely  L1, L5 and L10 isolates.  In addition, these isolates also have good antagonistic.
APLIKASI KITOSAN UNTUK PENGENDALIAN PENYAKIT BUSUK BUAH KAKAO (PHYTOPHTHORA MEGAKARYA L.) Septiana, Septiana; Dirmawati, Suskandini Ratih; Evizal, Rusdi
JURNAL AGROTROPIKA Vol 19, No 1 (2020): Jurnal Agrotropika Vol 19 No 1, Mei 2020
Publisher : JURNAL AGROTROPIKA

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (586.91 KB)

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
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.