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

Abstract

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.
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 | 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.218%p

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.