Population of soil palm weevil pollinator Elaeidobius kamerunicus FAUST and its impact on fruit setvalue at clay, sandy and peat soil types in central Kalimantan, di IndonesiaOil palm weevil pollinator Elaeidobius kamerunicus Faust plays an important role in the increasing oilpalm fruit set value. Along with the development of oil palm, fruit set problems occurred in recentdecades in some parts of Indonesia. An experiment was carried out on a seven years old oil palmplantation located at Selangkun Estate, Kotawaringin Barat, Central Kalimantan, Indonesia to find outthe influence of population E. kamerunicus on pollination efficiency at clay, sandy and peat soil types.Relative to other soil types, a high weevil population on male (50,811 weevils/ha ; 72 weevils/spikelet)and female (219 weevils) inflorescences had been recorded at clay soil. Fruit set value on clay soil 58.9%and significantly different with sandy soil of 49.8% and peat soil of 46.4%. Population E. kamerunicusper ha influenced fruit set value at clay, sandy and peat soil types. Number of E. kamerunicus visitedfemale inflorescences did not influenced fruit set value at clay, sandy and peat soil types.Keywords: Clay soil, Elaeidobius kamerunicus, fruit set, peat soil, population, sandy soil ABSTRAKSerangga penyerbuk kelapa sawit Elaeidobius kamerunicus FAUST berperan penting dalam peningkatannilai fruit set kelapa sawit. Seiring dengan perkembangan kelapa sawit, adanya permasalahan nilai fruitset telah terjadi dalam beberapa kurun waktu di beberapa wilayah Indonesia. Penelitian dilakukan diperkebunan kelapa sawit yang telah berumur tujuh tahun, berlokasi di Selangkung, Kotawaringin Barat,Kalimantan Tengah, Indonesia dan bertujuan untuk mengetahui pengaruh populasi E. Kamerunicusterhadap efisiensi penyerbukan pada tipe tanah liat, pasir dan gambut. Berdasarkan tipe tanahdilaporkan bahwa tingginya populasi kumbang pada bunga jantan yaitu (50.811 kumbang/ha; 72kumbang/spikelet) dan bunga betina yang sedang mekar (219 kumbang) pada tipe tanah berliat.Adapun, nilai fruit set pada tanah liat sebesar 58,9% dan berbeda nyata dibandingkan dengan tanahberpasir (49,8%) dan gambut (46,4%). Populasi E. kamerunicus per ha berpengaruh terhadap nilai fruitset pada tipe tanah liat, pasir dan gambut. Namun, jumlah E. kamerunicus yang mengunjungi bungabetina yang sedang mekar tidak berpengaruh terhadap nilai fruit set pada tipe tanah liat, pasir dangambut.Kata Kunci : Elaeidobius kamerunicus, Fruit set , Populasi, Tanah Gambut, Tanah liat, Tanah Pasir
The ability of Bacillus subtilis and Lysinibacillus sp. singly or mixed, with carbon fiber and nano silica to induce resistance of shallot to purple blotchPurple blotch disease caused by Alternaria porri is one of the major disease on shallot. One of the methods that can be applied to control the disease is the use of antagonistic bacteria. Antagonistic bacteria can be used as a resistance inducer to suppress pathogen development. In this study, Bacillus subtilis and Lysinibacillus sp. were formulated in carbon fiber as a carrier and nano silica 3% as a complementary. This study was conducted to determine the ability of Bacillus subtilis and Lysinibacillus sp. singly or mixed, with carbon fiber and nano silica to induce resistance of shallot to purple blotch. The experiment was conducted at the Laboratory of Phytopathology, Departement of Plant Pest and Diseases and Ciparanje Green House, Faculty of Agriculture, Universitas Padjadjaran from December 2017 until July 2018. Suspension of Bacillus subtilis and Lysinibacillus sp. singly or mixed were formulated in carbon fiber 80 Mesh and 3% nano silica. The experiment used Randomized Block Design consisted of 8 treatments with 3 replications. Each replication consisted of 5 plants. The results showed that the mixture of Bacillus subtilis and Lysinibacillus sp. in 3% silica nano and carbon fiber was the ablest treatment to increase the resistance of shallot to purple blotch by 71,2%.Keywords: Antagonistic bacteria, BiocontrolABSTRAKPenyakit bercak ungu yang disebabkan oleh Alternaria porri merupakan salah satu penyakit utama pada bawang merah. Salah satu metode yang dapat digunakan untuk pengendalian yaitu menggunakan bakteri antagonis. Bakteri antagonis dapat digunakan sebagai penginduksi ketahanantanaman untuk menekan perkembangan penyakit. Pada penelitian ini, Bacillus subtilis dan Lysinibacillus sp. diformulasikan dalam serat karbon sebagai bahan pembawa dan silika nano 3% sebagai bahan pelengkap. Percobaan ini dilakukan untuk mengetahui kemampuan bakteri Bacillus subtilis dan Lysinibacillus sp. secara tunggal maupun campuran dalam serat karbon dan silika nano3% untuk menginduksi ketahanan bawang merah terhadap penyakit bercak ungu. Percobaan ini dilaksanakan di Laboratorium Fitopatologi, Departemen Hama dan Penyakit Tumbuhan dan Rumah Kaca, Ciparanje, Fakultas Pertanian, Universitas Padjadjaran mulai dari bulan Desember 2017 hingga Juli 2018. Suspensi Bacillus subtilis dan Lysinibacillus sp. secara tunggal maupun campuran diformulasikan pada serat karbon dan silika nano 3%. Percobaan menggunakan rancangan acak kelompok yang terdiri dari 8 perlakuan dengan 3 ulangan. Setiap ulangan terdiri dari 5 tanaman. Dari hasil percobaan diketahui bahwa campuran B. subtilis dan Lysinibacillus sp. dalam silika nano 3% serta serat karbon mampu meningkatkan ketahanan bawang merah terhadap penyakit bercak ungu dengan persentase hambatan sebesar 71,2%.Kata Kunci: Bakteri antagonis, Biokontrol
Mango is one of the primary fruit export commodities in Indonesia. The productivity of mango can be increased by controlling the pest population, including fruit flies Bactrocera spp. Various efforts to control the population of fruit flies have been carried out, either by implementing traditional methods or by using synthetic pesticides. However, synthetic pesticides can cause pollution, and therefore we need to control the fruit flies’ population by using the most effective fruit fly trap mode. The study was conducted in the mango yield (monoculture) of Department of Agriculture in Majalengka. The traps in this study were modified Steiner traps with funnels, modified Steiner traps without funnels, bottle traps with funnels, bottle traps without funnels, and modified gypsy moth traps. Each trap was fed with 0.2 ml of Methyl eugenol dripped on a cotton roll and hung in the trap. The results showed that the number of fruit flies caught in each trap every week is significantly different. The highest number of fruit flies caught in each trap every week was achieved by bottle traps without funnels that caught 135 flies, while the lowest number of fruit flies caught was recorded by the gypsy moth traps with 16 flies. The transparent color of the bottles and a large number of holes effectively lured the fruit flies into the bottle traps without funnels.
Penelitian rumah plastik ini bertujuan untuk mengetahui hubungan antara kepadatan populasi hama kutu daun persik (Myzus persicae Sulz.), tingkat kerusakan daun dan kehilangan hasil cabai merah (Capsicum annuum). Delapan taraf kepadatan populasi M. persicae (0, 2, 4, 8, 16, 32, 64, dan 128 ekor / tanaman) masing-masing diinfestasikan pada tanaman cabai pada fase pertumbuhan awal dan fase pembungaan awal. Hasil penelitian menunjukkan bahwa populasi M. persicae dan tingkat kerusakan daun oleh hama tersebut berhubungan erat dengan kehilangan hasil cabai merah. Pada tanaman yang diinfestasi M. persicae saat fase pertumbuhan awal, hubungan antara kepadatan populasi (X) dengan kehilangan hasil (Y) mengikuti persamaan garis regresi Y = 19,1865 + 0,3568 X dengan keefektifan menduga sebesar 73,85% dan koefisien kerusakan sebesar 0,8724 g/ekor. Persamaan garis untuk tanaman yang diinfestasi M. persicae saat fase pembungaan awal adalah Y = 19,8504 + 0,3181X dengan keefektifan menduga 62,18 % dan koefisien kerusakan 0,7179 g/ekor. Hubungan antara tingkat kerusakan daun dengan kehilangan hasil pada tanaman cabai yang diinfestasi M. persicae saat fase pertumbuhan awal mengikuti persamaan garis regresi Y = 25,93 + 64,51 X1 + 0,26 X2 – 2,27 X3 {(Y = kehilangan hasil (%); X1 = tingkat kerusakan daun oleh M. persicae (%); X2 = populasi awal M. persicae (ekor/tanaman) dan X3 = waktu pengamatan (minggu setelah infestasi)} dengan keefektifan menduga 78,75 % dan koefisien kerusakan 1,577 g/% kerusakan daun. Persamaan garis untuk tanaman cabai yang diinfestasi M. persicae saat fase pembungaan awal adalah Y = 25,59 + 1164,87 X1 + 0,08 X2 – 4,60 X3, dengan keefektifan menduga 79,18% dan koefisien kerusakan 3,72 g/% kerusakan daun.
SOCIALIZATION OF DRAGON FRUIT CULTURE FOR COASTAL REGION IN CINTARATU VILLAGE, PARIGI, DISTRICT OF PANGANDARAN.Dragon fruit is one type of potential fruits to be developed in the lowlands such as Pangandaran. Knowledge of dragon fruit cultivation in this area. An effort for the process of empowerment and community development for dragon fruit cultivation is with the socialization activities about the technology of dragon fruit cultivation. The purpose of this activity is to introduce dragon fruit plants to be cultivated in coastal areas of Pangandaran as one of the sources of food that rich with nutrition and support the improvement the nutrition of the community and allows to be an additional income for community. This activity was conducted in Cintaratu Village, Parigi, Pangandaran City by seminar and making the demonstration plot. The seminar was introduction of dragon fruit, explanation about the superiority and importance of dragon fruit as a source of nutrition, and also technology of dragon fruit cultivation in coastal area. In addition to making the demonstration plot (demplot) of dragon fruit on farmers' land. The results of this activities showed that there looks enthusiastic society to know more about what is the dragon fruit and how the dragon fruit culture techniques, so the dragon fruit in the area can develop. KEYWORDS: PENDAHULUANPangandaran merupakan daerah dataran rendah yang berada di selatan Provinsi Jawa Barat. Luas wilayah Kabupaten Pangandaran yaitu 168.509 Ha dengan luas laut 67.340 Ha dan luas lahan pertanian sekitar 13.495 Ha (Kasih, 2016). Umumnya tanaman yang banyak dikembangkan di Pangandaran adalah JURNAL PENGABDIAN PADA MASYARAKAT
APPLICATION OF DRAGON FRUIT CULTIVATION TECHNOLOGY FOR COASTAL AREAS IN KALIJAGA VILLAGE, HARJAMUKTI DISTRICT, CIREBON CITY. Dragon fruit is one of the growing fruit commodities and is widely known in Indonesia. The distribution process has reached all of Indonesia. The development of dragon fruit in West Java itself is still said to be low, so it is necessary to increase or open a new area for the cultivation process which directly helps in terms of land and water conservation. In West Java alone, one location that has the potential to become a dragon fruit cultivation area is the City of Cirebon. Cirebon City is a strategic city that connects West Java and Central Java. However, the condition of the land in Cirebon is mostly unproductive. So it is necessary to find ways to increase the productivity of the land, namely through the application of technology to cultivate dragon fruit plants in coastal areas. To increase public awareness to reproduce agricultural land in the area, one of them is the process of mentoring the introduction of suitable types of plants grown in the area and appropriate cultivation technology for the area. The area that will be used as partners for this activity is Kalijaga Village, Kec. Harjamukti by involving two farmer groups, Sekar Maju, and Sidemung. The method that will be carried out in this assistance is the process of counseling, practice and making demonstration plots of dragon fruit planting that can be used as a learning tool in the area. From the results of the counseling, it was seen that the community's enthusiasm was high to want to know more about dragon fruit and how to cultivate dragon fruit in the area, so that dragon fruit in the area could develop.
Bemisia tabaci merupakan hama tanaman di beberapa sentra produksi sayuran hingga mengakibatkan kerugian ekonomi sampai 100 %. Paederus fuscipes merupakan predator B. tabaci pada beberapa tanaman di Kecamatan Ciwidey, Bandung. Penelitian bertujuan untuk mengetahui biologi dan kemampuan memangsa imago P. fuscipes jantan terhadap nimfa B. tabaci. Percobaan menggunakan Rancangan Acak Kelompok yang terdiri atas lima perlakuan dan 5 ulangan. Perlakuan terdiri atas: infestasi 10, 20, 40, 80, dan 160 nimfa B. tabaci per satu imago P. Fuscipes. Hasil pengamatan biologi menunjukkan bahwa siklus hidup P. fuscipes berkisar antara 38-75 hari. Fase telur berkisar 4-7 hari, larva instar-1 berkisar 4-5 hari, larva instar-2 berkisar 6-9 hari, pra-pupa berkisar 2-3 hari, pupa berkisar 3-5 hari, dan lama hidup imago berkisar 19-46 hari. P. fuscipes memperlihatkan tanggap fungsional terhadap peningkatan kepadatan B. tabaci sebagai mangsa. Jumlah pemangsaan nimfa B. tabaci tertinggi terjadi pada kepadatan 160 nimfa, yaitu 101,1 dan 100,1 nimfa B. tabaci per imago P. fuscipes, masing-masing untuk periode pagi dan sore. Kecepatan memangsa imago P. fuscipes terhadap nimfa B. tabaci yaitu berkisar 0,83-8,17 nimfa per jam pada siang hari, dan 0,75-8 nimfa per jam pada malam hari.
The ability of Bacillus subtilis and Lysinibacillus sp. singly or mixed, with carbon fiber and nano silica to induce resistance of shallot to purple blotchPurple blotch disease caused by Alternaria porri is one of the major disease on shallot. One of the methods that can be applied to control the disease is the use of antagonistic bacteria. Antagonistic bacteria can be used as a resistance inducer to suppress pathogen development. In this study, Bacillus subtilis and Lysinibacillus sp. were formulated in carbon fiber as a carrier and nano silica 3% as a complementary. This study was conducted to determine the ability of Bacillus subtilis and Lysinibacillus sp. singly or mixed, with carbon fiber and nano silica to induce resistance of shallot to purple blotch. The experiment was conducted at the Laboratory of Phytopathology, Departement of Plant Pest and Diseases and Ciparanje Green House, Faculty of Agriculture, Universitas Padjadjaran from December 2017 until July 2018. Suspension of Bacillus subtilis and Lysinibacillus sp. singly or mixed were formulated in carbon fiber 80 Mesh and 3% nano silica. The experiment used Randomized Block Design consisted of 8 treatments with 3 replications. Each replication consisted of 5 plants. The results showed that the mixture of Bacillus subtilis and Lysinibacillus sp. in 3% silica nano and carbon fiber was the ablest treatment to increase the resistance of shallot to purple blotch by 71,2%.Keywords: Antagonistic bacteria, BiocontrolABSTRAKPenyakit bercak ungu yang disebabkan oleh Alternaria porri merupakan salah satu penyakit utama pada bawang merah. Salah satu metode yang dapat digunakan untuk pengendalian yaitu menggunakan bakteri antagonis. Bakteri antagonis dapat digunakan sebagai penginduksi ketahanan tanaman untuk menekan perkembangan penyakit. Pada penelitian ini, Bacillus subtilis dan Lysinibacillus sp. diformulasikan dalam serat karbon sebagai bahan pembawa dan silika nano 3% sebagai bahan pelengkap. Percobaan ini dilakukan untuk mengetahui kemampuan bakteri Bacillus subtilis dan Lysinibacillus sp. secara tunggal maupun campuran dalam serat karbon dan silika nano 3% untuk menginduksi ketahanan bawang merah terhadap penyakit bercak ungu. Percobaan ini dilaksanakan di Laboratorium Fitopatologi, Departemen Hama dan Penyakit Tumbuhan dan Rumah Kaca, Ciparanje, Fakultas Pertanian, Universitas Padjadjaran mulai dari bulan Desember 2017 hingga Juli 2018. Suspensi Bacillus subtilis dan Lysinibacillus sp. secara tunggal maupun campuran diformulasikan pada serat karbon dan silika nano 3%. Percobaan menggunakan rancangan acak kelompok yang terdiri dari 8 perlakuan dengan 3 ulangan. Setiap ulangan terdiri dari 5 tanaman. Dari hasil percobaan diketahui bahwa campuran B. subtilis dan Lysinibacillus sp. dalam silika nano 3% serta serat karbon mampu meningkatkan ketahanan bawang merah terhadap penyakit bercak ungu dengan persentase hambatan sebesar 71,2%.Kata Kunci: Bakteri antagonis, Biokontrol
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.
hi@scite.ai
10624 S. Eastern Ave., Ste. A-614
Henderson, NV 89052, USA
Copyright © 2024 scite LLC. All rights reserved.
Made with 💙 for researchers
Part of the Research Solutions Family.