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PERKEMBANGAN DAN HAMBATAN MAKAN LARVA Crocidolomia pavonana YANG DIBERI SEDIAAN FRAKSI DIKLORMETAN KULIT BATANG Calophyllum soulattri Syahputra, Edy; Prijono, Djoko
Jurnal Agroteknos Vol 1, No 3 (2011)
Publisher : Jurnal Agroteknos

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Abstract

ABSTRACKThe objectives of this study were to evaluate the develovment time, and feeding inhibity of Crocidolomia pavonana larvae fed dichloromethana fraction of Calophyllum soulattri bark preparation.   Fractionation of C. soulattri fraction was performed with vaccuum liquid chromatography.   Bioassay was conducted against C. pavonana larvae by leaf-feeding method.  Second-instar C.  pavonana larvae  were  fed  extract-treated broccoli leaves for 48 haurs, then were presented with untreated leaves until the surviving larvae reached the fourth-instar stage.   The number of dead larvae was recorded.   For  feeding inhibity, preparation was assayed using leaf-disc choice and no-choice test towards third- instar C. pavonana larvae. The results showed that dichloromethan fraction of C. soulattri barks possessed strong insecticidal activity against C. pavonana larvae with LC50  of 0,06%. The dichloromethan fraction at 0,06%-0,09% could prolong development time of instar II-III larvae  by  1,7-2,7  days.  In  choice  and  no-choice  leaf  disc  methods,  the  dichloromethan fraction at 0,02%-0,075% inhibited feeding of instar III larvae by 54,8%-100%.  Concerning with their potentiality, further studies are needed to identify insecticidal compounds in those active extracts.Keywords: Calophyllum soulattri, Crocidolomia pavonana, feeding inhibity, insecticidal activity
BAKTERI FILOSFER PADI DAN POTENSINYA SEBAGAI AGENS HAYATI TERHADAP PENYAKIT HAWAR MALAI Burkholderia glumae Neti, Neti; Rianto, Fadjar; Syahputra, Edy
Jurnal Sains Pertanian Equator Vol 13, No 3
Publisher : Fakultas Pertanian Universitas Tanjungpura

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26418/jspe.v13i3.79681

Abstract

Penurunan produktivitas padi salah satunya disebabkan oleh organisme pengganggu tanaman (OPT), seperti penyakit hawar malai oleh bakteri Burkholderia glumae. Penggunaan bakterisida dalam mengendalikan penyakit hawar malai dapat menimbulkan dampak negatif, sehingga diperlukan pengendalian lain yang tidak berdampak negatif bagi lingkungan dan organisme bukan sasaran. Salah satunya adalah penggunaan bakteri antagonis pada tanaman padi yaitu bakteri filosfer. Penelitian ini bertujuan untuk mengeksplorasi isolat bakteri filosfer yang berpotensi sebagai agens hayati terhadap penyakit hawar malai yang disebabkan oleh patogen B. glumae. Penelitian dilakukan di Laboratorium Penyakit Tanaman, Fakultas Pertanian, Universitas Tanjungpura, Pontianak. Metode yang digunakan meliputi pengambilan sampel, isolasi bakteri filosfer, uji daya hambat terhadap B. glumae, uji filtrat bakteri filosfer terhadap B. glumae dan uji respons hipersensitivitas pada daun tembakau. Hasil eksplorasi menunjukkan bahwa dari 14 isolat bakteri filosfer yang diperoleh dari daun dan malai padi di antaranya 6 isolat dengan daya hambat 25% "“ 75%. Pada uji filtrat 4 isolat di antaranya memiliki aktivitas antibakteri 40% "“ 85%.
STUDI CENDAWAN PADA BULIR PADI DI KECAMATAN SUNGAI KAKAP DAN POTENSINYA SEBAGAI PATOGEN TULAR-BENIH Asmani, Asmani; Rianto, Fadjar; Syahputra, Edy
Jurnal Sains Pertanian Equator Vol 13, No 3
Publisher : Fakultas Pertanian Universitas Tanjungpura

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26418/jspe.v13i3.77669

Abstract

Keberadaan cendawan patogen tular-benih dapat mengakibatkan viabilitas benih menurun.  Informasi tentang jamur atau cendawan yang mempunyai habitat pada bulir padi di Kecamatan Sungai Kakap Kabupaten Kubu Raya masih belum banyak diketahui. Diduga tidak semua jamur tersebut berstatus sebagai patogen, dan kemampuan patogenisitasnya juga tidak sama. Atas dasar hal tersebut maka perlu adanya dilakukan inventarisasi cendawan pada bulir padi untuk menilai potensinya sebagai patogen sehingga perlu dikendalikan. Penelitian ini bertujuan untuk menginventarisai cendawan pada bulir padi di Kecamatan Sungai Kakap Kabupaten Kubu Raya Kalimantan Barat serta mengetahui potensinya sebagai cendawan patogen tular-benih. Pengambilan sampel dilakukan dengan metode purposive random sampling  yaitu disesuaikan terhadap rumpun padi yang memperlihatkan ada gejala bercak pada bulirnya. Sampel malai padi diambil dari tiga lokasi dengan lokasi I di Kalimas, lokasi II di Pal 13, dan lokasi III di Punggur. Waktu pelaksanaan penelitian dilakukan selama 6 bulan. Hasil penelitian menunjukkan bahwa nilai sebaran insidensi dan keparahan penyakit tertinggi pada lokasi III dengan tipe lahan pasang surut. Selain itu, pengambilan sampel dari tiga lokasi pada pertanian padi di Kecamatan Sungai Kakap diperoleh cendawan yang sama diantaranya Aspergillus  sp., Curvularia  sp., Fusarium sp., Helminthosporium oryzae, Prycularia oryzae, Rhizoctonia  sp., Ustilagnodea oryzae. Kemudian pengujian hipovirulensi dari 14 perlakuan yang dilakukan diperoleh hasil 8 cendawan yang bersifat virulen dan 6 bersifat hipovirulen. Sedangkan uji patogenisitas cendawan yang cukup memberi pengaruh buruk terhadap daya kecambah benih padi adalah Curvularia sp. (A), Curvularia  sp. (B), Fusarium  sp. (A), Fusarium  sp. (B), Fusarium sp. (C), Helminthosporium oryzae, dan Rhizoctonia sp. dengan nilai daya kecambah (0 "“ 50)%, dengan demikian cendawan tersebut diduga berpotensi sebagai patogen tular-benih.
AKTIVITAS HERBISIDA CAMPURAN ATRAZIN, NIKOSULFURON, DAN MESOTRION TERHADAP GULMA UMUM Adawiyah, Rabiatul; Syahputra, Edy; Suswanto, Iman
Jurnal Sains Pertanian Equator Vol 14, No 1
Publisher : Fakultas Pertanian Universitas Tanjungpura

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26418/jspe.v14i1.87623

Abstract

Kehadiran gulma menyebabkan terjadinya kompetisi dengan tanaman budidaya dalam memperoleh air, unsur hara, cahaya dan ruang tumbuh. Keberadaan gulma di lahan pertanian tentunya sangat beragam. Salah satu cara paling efektif untuk mengendalikan beberapa jenis gulma yang berbeda dalam satu populasi yaitu dengan melakukan pencampuran herbisida. Penggunaan dua jenis atau lebih herbisida mampu meningkatkan efektivitas pengendalian gulma, serta dapat menekan resistensi gulma. Tujuan penelitian ini untuk mengetahui sifat aktivitas herbisida campuran dengan bahan aktif Atrazin, Mesotrion, dan Nikosulfuron terhadap gulma umum. Penelitian ini dilaksanakan pada bulan November 2022 "“ Januari 2023 selama 3 bulan di Lokasi percobaan dan Laboratorium Pestisida, Fakultas Pertanian Universitas Tanjungpura Pontianak. Penelitian dirancang menggunakan Rancangan Acak Lengkap dengan 5 taraf dosis perlakuan yang diulang 5 kali. Variable yang diamati dalam penelitian ini adalah fitotoksitas dan intensitas kerusakan gulma setelah aplikasi herbisida. Analisis data menggunakan analisis sidik ragam dan analisis probit menggunakan program SAS dilanjutkan dengan perhitungan indeks kombinasi. Hasil penelitian menunjukkan herbisida campuran berbahan aktif atrazin + mesotrion + nikosulfuron menunjukkan nilai indek kombinasi sebesar 0,98 (IK ≤ 1) sehingga herbisida campuran bersifat tidak antagonis.
Bioactivity of Kipahit Flower Extract Tithonia Diversifolia on Mortality and Eating Behavior of Larvae Crocidolomia Pavonana Pertiwi, Fitri Dewi; Syahputra, Edy; Ramadhan, Tris Haris
CROPSAVER Vol 7, No 1 (2024)
Publisher : Departemen Hama dan Penyakit Tumbuhan Fakultas Pertanian Universitas Padjadjaran

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24198/cropsaver.v7i1.51763

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Using of synthetic insecticides to control the C. pavonana pest could have negative impacts. As an alternative control, using plant extracts is relatively safer in controlling these pests. This research aims to study the bioactivity flower of kipahit T. diversifolia extract on mortality and feeding behavior of C. pavonana larvae. Extraction was carried out using the maceration method using methanol. Bioassay for insecticidal activity was carried out using the residual method on the leaves against larvae II. Feeding on treated leaves was carried out for 48 hours. the antifeedant assayed for 24 hours of exposure to instar III. The concentration - mortality relationship was analyzed using probit analysis. Data on development time are expressed as the average value ± standard deviation. The results showed that the activity of kipahit flower extract had an LC50 of 0.51% and an LC95 of 3.86%. These extract with choicw method at the sub lethal dose tested inhibit the feeding activity by 24.90%, 53.96%, 76.34% respectively, while the no choice method inhibits feeding activity by 27.20%, 59.69% 86.40%, respectively.
Penggunaan Sistem Hidrolik Untuk Meningkatkan Efisiensi Energi dan Performa Operasional Syahputra, Edy; Prabudi, Wisnu; Maqdis, Baitul; Syuhada, Ferry
Jurnal Mekanova : Mekanikal, Inovasi dan Teknologi Vol 10, No 2 (2024): Oktober
Publisher : universitas teuku umar

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35308/jmkn.v10i2.10540

Abstract

This study examines the use of hydraulic systems in industrial equipment to improve energy efficiency and operational performance. Through a systematic literature review approach, this research analyzes various aspects of hydraulic system implementation in the context of modern industry. The results show that hydraulic systems offer significant advantages in terms of energy efficiency, with potential fuel savings of up to 40% and energy recovery efficiency reaching 53%. Various optimization strategies, including displacement control and implementation of Cyber-Physical Systems (CPS), prove effective in enhancing system performance. However, challenges such as high initial costs and the need for skilled labor still need to be addressed. Sustainability aspects are also a focus, with the use of bio-based hydraulic fluids that can reduce the carbon footprint by up to 30%. This study concludes that a deep understanding of the trade-offs between the benefits and challenges of hydraulic systems is crucial for effective and safe implementation across various industrial contexts. This research contributes significantly to the current understanding of the potential and challenges of using hydraulic systems to improve energy efficiency and operational performance in the industrial sector.Keywords— Hydraulic Systems, Energy Efficiency, Operational Performance
The PGPR Bacteria from Bamboo Rhizosphere as a Biocontrol Agent for Moler Disease: The PGPR Bacteria from Bamboo Rhizosphere as a Biocontrol Agent for Moler Disease Susanti, Herni; Rianto, Fadjar; Syahputra, Edy
Jurnal Fitopatologi Indonesia Vol. 20 No. 5 (2024): September 2024
Publisher : The Indonesian Phytopathological Society (Perhimpunan Fitopatologi Indonesia)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14692/jfi.20.5.234-241

Abstract

Plant growth promoting rhizobacteria banyak dimanfaatkan sebagai agens hayati, baik terhadap F. oxysporum ataupun patogen lainnya. PGPR dari perakaran bambu berpotensi dimanfaatkan untuk pengendalian penyakit moler pada bawang merah. Penelitian ini bertujuan melakukan penilaian potensi PGPR dari perakaran bambu, sebagai agens antagonis terhadap F. oxysporum. Sampel rizosfer bambu diambil dari beberapa lokasi di Kalimantan Barat dan diisolasi menggunakan metode tuang sebar pada medium nutrient agar. Isolat-isolat yang diperoleh dilakukan penilaian sebagai agens antagonis terhadap F. oxysporum secara in vitro. Hasil ekplorasi diperoleh 30 isolat, 19 isolat di antaranya mempunyai daya hambat terhadap F. oxysporum. Pada uji produksi HCN, diperoleh tujuh isolat terindikasi menghasilkan gas HCN dan menghambat F.oxysporum melebihi 50%, yaitu isolat PY.01, ST.02, PY.03, S2.05, PR.01, PR.02, dan ST.03. Isolat tersebut juga dapat menurunkan produksi konidium. Pengujian anticendawan dari metabolit yang terlarut dalam supernatan diperoleh 12 isolat menunjukkan sifat anticendawan dan mampu menghambat pertumbuhan F. oxysporum. Metabolit sekunder dari isolat PR.01 memiliki indeks penghambatan tertinggi, yaitu 73.08. Isolat ST.02, PR.02, dan S2.05 menunjukkan keunggulan dalam menghambat F. oxysporum, menghasilkan gas HCN dan metabolit.
Eksplorasi Bakteri Filoplan Daun Karet dan Potensinya sebagai Agens Hayati terhadap Pestalotiopsis sp. Penyebab Penyakit Gugur Daun Oktarianti, Sherly; Rianto, Fadjar; Syahputra, Edy
Variabel Vol 7, No 1 (2024): APRIL 2024
Publisher : STKIP Singkawang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26737/var.v7i1.5309

Abstract

Karet di Indonesia merupakan salah satu peyumbang yang cukup besar terhadap devisa negara di sektor perkebunan. Upaya pengendalian digunakan untuk menekan penyakit gugur daun, Pengendalian hayati dengan memanfaatkan musuh alami diketahui dapat menekan pertumbuhan patogen. Diperlukan pencarian musuh alami yang efektif dalam mengendalikan patogen. Eksplorasi agens hayati merupakan langkah awal pada pengembangan pengendalian hayati. Penelitian ini bertujuan untuk eksplorasi bakteri filoplan daun karet yang berpotensi sebagai agens hayati terhadap Pestalotiopsis sp. penyebab penyakit gugur daun karet. Penelitian dilakukan di Laboratorium Penyakit Tanaman Fakultas Pertanian Universitas Tanjungpura Pontianak. Pelaksanaan penelitian dimulai dari eksplorasi bakteri filoplan pengambilan sampel bakteri filoplan tanaman karet, selanjutnya dilakukan isolasi dengan media Nutrient Broth, pemurnian dengan media Nutrient Agar dan identifikasi bakteri filoplan. Variabel yang diamati meliputi daya antagonisme bakteri filoplan terhadap Pestalotiopsis sp. dengan uji dual culture, uji reaksi gram dan respon hipersensitivitas (HR). Hasil eksplorasi mikroba filosfer pada daun karet ditemukan 6 isolat bakteri yang memiliki sifat antagonis dari 36 isolat yang ditemukan dilapangan yaitu FK10, FK11, FK21, FK24 dan FK26. Terdapat 4 isolat yang memiliki daya hambat dibawah 60 % yaitu FK2, FK10, FK11 dan FK24. Sedangkan 2 isolat memiliki daya hambat diatas 60% yaitu isolat FK21 dan FK26. Persentase penghambat tertinggi diperlihatkan isolat FK26 yaitu 61,2%. Isolat FK2, FK21, FK24 dan FK26 tidak bersifat patogen bagi tanaman pada hasil uji HR.Kata Kunci: Agens Pengendali Hayati; Bakteri Filoplan; Pestalotiopsis sp.; Tanaman KaretExploration of Rubber Leaf Filoplan Bacteria and Its Potential as a Biological Agent against Pestalotiopsis sp. Causes of Leaf Loss DiseaseABSTRACTRubber in Indonesia is a fairly large contributor to the country's foreign exchange in the plantation sector. Control efforts are used to suppress leaf fall disease. Biological control using natural enemies is known to suppress the growth of pathogens. It is necessary to search for natural enemies that are effective in controlling pathogens. Exploration of biological agents is the first step in the development of biological control. This research aims to explore rubber leaf phylloplan bacteria which have potential as biological agents against Pestalotiopsis sp. causes of rubber leaf fall disease. The research was conducted at the Plant Disease Laboratory, Faculty of Agriculture, Tanjungpura University, Pontianak. The research began with exploration of phylloplan bacteria, taking samples of phylloplan bacteria from rubber plants, then isolation using Nutrient Broth media, purification using Nutrient Agar media and identification of phylloplan bacteria. The variables observed included the antagonism of phylloplan bacteria against Pestalotiopsis sp. with dual culture test, gram reaction test and hypersensitivity response (HR). The results of exploration of phyllosphere microbes on rubber leaves found 6 bacterial isolates that had antagonistic properties from 36 isolates found in the field, namely FK10, FK11, FK21, FK24 and FK26. There were 4 isolates that have an inhibitory power below 60%, namely FK2, FK10, FK11 and FK24. Meanwhile, 2 isolates had an inhibitory power above 60%, namely isolates FK21 and FK26. The highest percentage of inhibitors was shown by isolate FK26, namely 61.2%. Isolates FK2, FK21, FK24 and FK26 were not pathogenic for plants in the HR test results.
Insecticidal Activity of Cymbopogon citratus and Melaleuca leucadendra Essential Oils and Their Joint Actions Against Spodoptera frugiperda Syahputra, Edy; Jayuska, Afghani; Satrio, Bagus Sandi; Wibowo, Vicy Arif
AGRIVITA Journal of Agricultural Science Vol 47, No 2 (2025)
Publisher : Faculty of Agriculture University of Brawijaya in collaboration with PERAGI

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.17503/agrivita.v47i2.4785

Abstract

A high population of Spodoptera frugiperda larvae reduces corn crop productivity. One alternative insect pest control method is the use of mixed essential oils. This research aims to evaluate the insecticidal and antifeedant activity of lemongrass (Cymbopogon citratus) and melaleuca (Melaleuca leucadendra) essential oils against S. frugiperda larvae, as well as their combined effect. The essential oils were produced using a steam distillation method.  The insecticidal activities were assayed using feeding method. The levels of essential oil concentration tested and controlled were repeated five times. The concentration-mortality relationship was analyzed using probit. Antifeedant activity tested by choice and no-choice at sub-lethal concentrations equivalent to LC10,LC25, and LC50. The test results showed that insecticidal activity of the essential oils of C. citratus higher than M leucadendra. Both essential oils showed LC50 values of 0.9% and 1.1% respectively. Both essential oils also showed antifeedant activity. In the choice test and no-choice test at LC10,LC25, and LC50 showed feeding inhibition of 23.7%-56.7%. The mixture of the two essential oils has a strongly synergistic action with an LC50 of 0.15% and a combination index of 0.15. Further research is needed to evaluate the extract mixture in the field.
The Effect of NPK Fertilizer on The Growth And Yield of Long Beans (Vigna sinensis L.) Given Olf on Alluvial Soil Bariyanto, Muhammad Deva; Rianto, Fadjar; Syahputra, Edy
Perkebunan dan Lahan Tropika Vol 15, No 1 (2025)
Publisher : Fakultas Pertanian Universitas Tanjungpura

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26418/plt.v15i1.92715

Abstract

Green bean (Vigna sinensis L.) has the potential to be developed as a vegetable in Indonesia. Optimization of alluvial soil as a growing medium for green beans by providing organic and inorganic fertilizers. This study aims to determine the efficiency of using NPK granular compound fertilizers on green beans given Organic Liquid Fertilizer (OLF) in alluvial soil. This study took place from August to November 2024 using a Completely Randomized Design (CRD) with one factor. The treatments tested for NPK fertilizer doses consisted of 6 treatment levels, namely fertilizer doses of 150 kg/ha, 200 kg/ha, 250 kg/ha, 300 kg/ha, 350 kg/ha, and 400 kg/ha. All treatments sprayed by OLF, except for 400 kg/ha. The study was repeated 4 times and in each replication there were 3 sample plants. Green beans of the Kanton Tavi variety were planted in polybags. The variables observed were plant height (cm), number of branches, root volume (cm3), dry weight of plants (g), number of pods per plant (pod), length of pods (cm), fresh weight of pods per plant (g). The planting medium of each polybag was given lime so that the pH reached 6.17-6.64. The 2 mL/L OLF concentration was sprayed onto each plant every week until a week before be harvested. The results showed that NPK affected the variables of dry plant weight and fresh pod weight per plant. The application of NPK fertilizer at a dose of 350 kg/ha was the best dose for the growth and yield of green beans with the highest average value of fresh pod weight per plant of 220.55 g. Using OLF can save 37.5% of NPK fertilizer use on green beans.
Co-Authors . Supriyanto A.A. Ketut Agung Cahyawan W Adlina, Almas AGATO, W. FANDIUS Ali, Muttaqin Kholis Anik Rahmawati Asmah Indrawaty, Asmah Asmani, Asmani Astuti K, Retno Bariyanto, Muhammad Deva Chatarina Umbul Wahyuni Dadang . DADANG DADANG DADANG DADANG Dedi Noviardi Devita, Kajol DJOKO PRIJONO Dwi Andriyani Dwi Zulfita Endarto, O. - Erika Nur Rahma Dhini Fadjar Rianto FORTUNATA LEO NARDO Fransiska Mada Sela Galih Yoga Prasaja Hana Septi Stella Rina Hargiani, Fransisca Xaveria Harnani Husni Haryanus Ugot hasyim, hasyim Heriandi, Heriandi Herni Susanti Heru - Iman Suswanto Indrian Tika Saputri Iwan Sasli Jayuska, Afghani Jumilah Jumilah Kukuh Hernowo Kurnia, Lulu Lala, Maria Elisabet latifah K Darusman Latifah K Darusman Latifah Kosim Darusman Madjidi, Madjidi Mahmudi Maqdis, Baitul Masmudah, Masmudah Minarti Minarti Mirna Suhar Moses O. Tade Moses O. Tade Nasrullah Nasrullah Neti, Neti Netty Indah Lestari Norma Norma Oktarianti, Sherly Parida, Parida Pertiwi, Fitri Dewi Prabudi, Wisnu R.C.L. Nasrullah Rabiatul Adawiyah Radian Radian Rahmidayani Rahmidayani Rahmidiyani Rahmidiyani, Rahmidiyani Riko - Riko Riko Sarbino - Sarbino - Sarbino Sarbino Sarbino Sarbino SARBINO SARBINO Sarbino Sarbino Sarbino, - Sari Malawati, Sari Sarianawati - Satrio, Bagus Sandi Shaobin Wang Shaobin Wang siti dian Siti Raihany Luthfiyyah Sitompul, Pardomuan Suci Wulandari Sulistia Ningsih, Sulistia Suraiya Suraiya Suraiya Suraiya SURIANTO, - SYAFRIDA MANUWOTO Syafrida Manuwoto SYAFRIDA MANUWOTO Syaifullah Muhammad Syaifullah Muhammad Syuhada, Ferry Tatang Abdurrahman, Tatang Tiari Aulia Putri Tomiko Tomiko Tris Haris Ramadha TRIS HARIS RAMADHAN tris haris ramdahan wasian wasian, wasian Wibowo, Vicy Arif Yaskur, Yaskur YULIUS KUNANG