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All Journal Jurnal Agrotek Tropika
Radix Suharjo
Universitas Lampung
Agriculture, Biological Sciences & Forestry

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PENGARUH PENAMBAHAN PUPUK MIKRO DAN BEBERAPA GENOTIPE SORGUM (Sorghum bicolor (L.) Moench) TERHADAP INTENSITAS PENYAKIT ANTRAKNOSA (Colletotrichum sp.) DI LAHAN PETANI TANJUNG BINTANG LAMPUNG SELATAN Farastika Unjunan Muli; Efri Efri; Muhammad Syamsoel Hadi; Radix Suharjo
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 (636.071 KB) | DOI: 10.23960/jat.v8i2.3902

Abstract

One of the diseases that often found in sorghum plants is anthracnose disease caused by Colletotrichum sp. The purposed of this study was to determine the effect of adding micro fertilizer and the use of several sorghum genotypes on the intensity of anthracnose disease. The study was conducted in Sukanegara, Tanjung Bintang, South Lampung in April 2017 - February 2018 and at the Laboratory of Plant Diseases and Pests, Faculty of Agriculture, University of Lampung. The treatments were arranged using a randomized block design in a split plot design (3 times replications), the main plot was micro nutrients (with micro addition and without micro addition) and 15 subgroups of sorghum genotypes (Numbu, Samurai 1, GH3, UPCA, GH4, P / I WHP, GH6, Super 2, GH13, P / F 51-93-C, Super 1, GH5, Mandau, GH7, and Talaga Bodas). The results showed that the addition of "ZincMicro" micro fertilizers to sorghum plants did not affect the intensity of anthracnose disease, however there were differences in the intensity of anthracnose diseases between sorghum genotypes. Numbu Genotype, GH 3, and GH 13 were relatively more resistant to anthracnose disease than the other genotypes.
UJI KEMAMPUAN ISOLAT JAMUR Trichoderma spp. SEBAGAI ANTAGONIS Ganoderma boninense DAN PLANT GROWTH PROMOTING FUNGI (PGPF) Yohan Yogaswara; Radix Suharjo; Suskandini Ratih Dirmawati; Cipta Ginting
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

Abstract

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.
PENGARUH BEBERAPA EKSTRAK TANAMAN OBAT TERHADAP PERTUMBUHAN KOLONI DAN PRODUKSI SPORA C. gloeosporioides PENYEBAB PENYAKIT ANTRAKNOSA PADA CABAI (Capsicum annuum L) Zakiah Selviani; Efri Efri; Ivayani Ivayani; Radix Suharjo
Jurnal Agrotek Tropika Vol 9, No 1 (2021): JURNAL AGROTEK TROPIKA VOL 9, JANUARI 2021
Publisher : Departement of Agrotechnology, Agriculture Faculty, Universitas Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jat.v9i1.4798

Abstract

Fungisida nabati merupakan zat yang berasal dari tanaman yang berpotensi menghambat dan mematikan jamur patogen.  Senyawa yang terkandung dalam tanaman obat seperti senyawa fitokimia alkaloid, saponin, flavonoid, tanin, polifenol, minyak atsiri, dan steroid yang berpotensi sebagai fungisida nabati. Penelitian bertujuan untuk mengetahui pengaruh beberapa ekstrak tanaman obat terhadap pertumbuhan dan produksi spora patogen secara In vitro.  Perlakuan dalam penelitian ini disusun dalam RancanganAcak Kelompok (RAK) menggunakan 11 perlakuan dengan empat ulangan.  Perlakuan terdiri dari kontrol, fraksi ketepeng, fraksi daun afrika, fraksi beluntas, fraksi teki, fraksi sambiloto, ekstrak segar ketepeng, ekstrak segar daun afrika, ekstrak segar beluntas, ekstrak segar teki, dan ekstrak segar sambiloto.  Data yang diperoleh diuji homogenitas ragam dan aditivitas dengan uji Tukey kemudian data dianalisis dengan analisis ragam dan dilanjutkan dengan uji BNJ pada taraf 5%.  Hasil penelitian menunjukkan bahwa secara keseluruhan perlakuan tidak berpengaruh nyata dalam menekan pertumbuhan dan kecepatan tumbuh C. gloeosporioides.  Namun fraksi yang mampu menekan produksi jumlah spora C. Gloeosporioides yaitu perlakuan fraksi ketepeng, fraksi daun afrika, fraksi beluntas, fraksi teki, fraksi sambiloto, ekstrak segar ketepeng, ekstrak segar daun afrika, ekstrak segar beluntas, dan ekstrak segar sambiloto.
Co-Authors Cipta Ginting Efri Efri Farastika Unjunan Muli Ivayani Ivayani Muhammad Syamsoel Hadi Suskandini Ratih Dirmawati Yohan Yogaswara Zakiah Selviani