Article Per Year (5 Year)
p-Index From 2021 - 2026
0
P-Index
This Author published in this journals
All Journal Edukasi Jurnal Hortikultura Journal of Accountancy FE UBB
- Suhardi
Program Studi Pendidikan Biologi FMIPA UNY
Agriculture, Biological Sciences & Forestry Economics, Econometrics & Finance Education

Published : 13 Documents Claim Missing Document
Claim Missing Document
Check
Articles

Found 13 Documents
Search

 1   2 
Efektivitas Fungisida untuk Pengendalian Penyakit Berdasarkan Curah Hujan pada Mawar Suhardi, -
Jurnal Hortikultura Vol 17, No 4 (2007): Desember 2007
Publisher : Indonesian Center for Horticulture Research and Development

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21082/jhort.v17n4.2007.p%p

Abstract

ABSTRAK. Percobaan untuk mengetahui efektivitas penyemprotan fungisida terhadap penyakit penting pada tanaman mawar telah dilakukan di Kebun Percobaan Segunung pada bulan September 2002 dan Januari 2003 menggunakan rancangan petak terpisah. Petak utama berupa 2 kultivar mawar, yaitu cv. Holland dan cv. Cherry Brandy, sedang anak petak ialah penyemprotan fungisida dengan interval 2 kali per minggu, 1 kali per minggu, dan penyemprotan apabila terjadi hujan. Hasil penelitian menunjukkan bahwa pada musim kemarau (September 2002) di samping terdapat serangan penyakit bercak hitam (Marssonina rosae) dijumpai pula serangan penyakit embun tepung (Oidium sp.) dengan tingkat serangan yang tinggi. Kultivar Holland dan Cherry Brandy rentan terhadap bercak hitam dan embun tepung. Penyemprotan fungisida setelah terjadi hujan efektif terhadap penyakit bercak hitam dan embun tepung pada musim kemarau. Pada musim hujan (Januari 2003), penyemprotan fungisida setelah terjadi hujan tidak efektif terhadap penyakit bercak hitam. Efektivitas perlakuan fungisida tidak saja ditentukan oleh curah hujan, tapi juga oleh jumlah hari hujan.ABSTRACT. Suhardi. 2007. The Efficacy of Fungicide for Diseases Control, Based on Rain Fall on 2 Rose Cultivars. A trial to find out the efficacy of fungicide application after rain to control the diseases on roses was carried out at Experimental Station Segunung on September 2002 and January 2003 using a split plot design. The main factor was rose cultivar (cv. Holland and Cherry Brandy) and the subplot was fungicide application (twice a week, once a week, and after rain). The results indicated that on dry period (September 2002) both black spot and powdery mildew occurred on cv. Holland and Cherry Brandy. Both cultivars were susceptible to black spot and powdery mildew. Fungicide application after the rain occurred was effective to suppress black spot and powdery mildew only on dry periode. On rainy period (January 2003) fungicide applications after the rain occurred was not effective to suppress black spot. The efficacy of fungicide application was not only determined by rain precipitation but also on number of rainy days as well.
Sumber Inokulum, Respons Varietas, dan Efektivitas Fungisida terhadap Penyakit Karat Putih pada Tanaman Kris Suhardi, -
Jurnal Hortikultura Vol 19, No 2 (2009): Juni 2009
Publisher : Indonesian Center for Horticulture Research and Development

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21082/jhort.v19n2.2009.p%p

Abstract

ABSTRAK. Penelitian untuk mengetahui peranan bibit sebagai sumber inokulum, respons varietas krisan, serta intervalpenyemprotan fungisida dilakukan di Balai Penelitian Tanaman Hias. Survai kesehatan bibit dilakukan di lahan petanipenghasil bibit krisan pada bulan Juli 2002. Penelitian di rumah plastik untuk mengetahui respons varietas krisanserta efektivitas penyemprotan fungisida, dilakukan dari bulan Juli-September 2002. Hasil penelitian menunjukkanbahwa bibit merupakan sumber inokulum bagi penyakit karat pada tanaman krisan. Pada tanaman individual, baik dirumah plastik maupun rumah kaca, perkembangan penyakit karat tertekan. Kultivar Phuma White relatif lebih tahandibanding cv. Reagent Ungu dan cv. Town Talk. Fungisida benomil (benzimidazol) belum menunjukkan keefektifanuntuk pengendalian penyakit karat pada tanaman krisan (Puccinia horiana).ABSTRACT. Suhardi. 2009. Inoculum Source, Variety Response, and Fungicide Efficacy to Rust Disease ofChrysanthemum. Studies to evaluate the role of cutting as an inoculum source, variety resistance, and fungicideapplication interval were done at Indonesian Ornamental Crops Research Institute. Survey of cutting health wascarried out at farmer’s fields as seed producer on July 2002. A study under plastichouse to evaluate the response ofsome cultivars and determine the efficacy of fungicide applications was carried out from July-September 2002. Theresults indicated that cuttings were the inoculum source of rust on chrysanthemum. On individual plant, both underplastic and glasshouse, the development of white rust was suppressed. Phuma White cultivar relatively more resistantthan cv. Reagent Ungu and cv. Town Talk. Benomyl (benzimidazole) fungicide was not effective yet in controllingchrysanthemum white rust (P. horiana).
Pengaruh Beberapa Ekstrak Tanaman terhadap Bercak Hitam dan Embun Tepung pada Tanaman Mawar Varietas Pertiwi Rahardjo, Indiarto Budi; Suhardi, -
Jurnal Hortikultura Vol 18, No 4 (2008): Desember 2008
Publisher : Indonesian Center for Horticulture Research and Development

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21082/jhort.v18n4.2008.p%p

Abstract

ABSTRAK. Kendala pada budidaya tanaman mawar di antaranya adalah penyakit tanaman, seperti penyakit bercak hitam dan embun tepung.  Salah satu alternatif pengendalian penyakit tanaman adalah penggunaan fungisida botani. Tujuan penelitian adalah mengetahui efektivitas ekstrak tanaman terhadap bercak hitam (Marssonina rosae) dan embun tepung (Oidium sp.) pada tanaman mawar. Percobaan dilaksanakan di Rumah Kaca Balai Penelitian Tanaman Hias, Segunung (1.100 m dpl.), dari bulan April 2002 sampai Maret 2003. Perlakuan penelitian ini adalah kontrol (tanpa perlakuan), kencur (Kaempferia galanga), arang sekam, temu lawak (Curcuma xanthorriza), nyiri (Xylocarpus granatum), nimba (Azadirachta indica), kunyit (Curcuma domestica), temu putih (Curcuma zedoaria), temu hitam (Curcuma aeruginosa), jahe (Zingiber officinale), pinang (Areca catechu), bratawali (Tinospora tuberculata), teh (Thea sinensis), pinus (Pinus merkusii), onje (Phaeomeria speciosa), dan lengkuas (Languas galanga). Penelitian menggunakan rancangan acak lengkap dan diulang 5 kali. Hasil penelitian menunjukkan ekstrak tanaman yang efektif terhadap bercak hitam sebelum terjadinya infeksi adalah arang sekam, daun teh, jahe, kencur, temu lawak, daun nyiri, daun nimba, dan temu hitam. Ekstrak tanaman yang efektif dapat menurunkan intensitas serangan embun tepung adalah daun nimba, temu hitam, jahe, onje, teh, kencur, dan lengkuas. Perlu ada uji lanjut efikasi ekstrak tanaman terhadap bercak hitam dan embun tepung pada tanaman mawar.ABSTRACT. Rahardjo, I.B. and Suhardi. 2008 The Effect of Several Plant Extracts on Black Spot and Powdery Mildew of Rose Pertiwi Variety. One of the constraints on rose plant cultivation was disease infection, especially black spot and powdery mildew. The alternatives to control the diseases was the use of botanic fungicide. The objective of the experiment was to determine the effffectiveness of plant extracts to control black spot (Marssonina rosae) and powdery mildew (Oidium sp.) on rose. The experiment was conducted in the Greenhouse of Indonesian Ornamental Plant Research Institute (1,100 m asl.), from April 2002 to March 2003. The treatments were control (no treatment), galingale (Kaempferia galanga), rice coal, wild ginger (Curcuma xanthorriza), Xylocarpus granatum, neem (Azadirachta indica), turmeric (Curcuma domestica), Curcuma zedoaria, Curcuma aeruginosa, ginger (Zingiber officinale), areca nut (Areca catechu), Tinospora tuberculata, tea (Thea sinensis), pinus (Pinus merkusii), torch ginger (Phaeomeria speciosa), and galanga (Languas galanga). A complete randomized design with 5 replications were used. The results of the experiment showed that plant extracts which effffective to control black spot before infection occured were rice husk charcoal, tea leaves, ginger, galingale, wild ginger, Xylocarpus granatum, neem leaves, and Curcuma aeruginosa. While plant extracts which effffectively decreased powdery mildew intensity were neem leaves, Curcuma aeruginosa, ginger, torch ginger, tea, galingale, and galanga. Futher study is needed to verify the efficacy of plant extract to control black spot and powdery mildew on roses.
Co-Authors - Hanudin - Karmawan Abdul Gani Asep Saepulloh I B Rahardjo Indiarto Budi Rahardjo K Budiarto M F Masyhudi S Wuryaningsih W Handayati