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All Journal HAYATI Journal of Biosciences AGRIVITA, Journal of Agricultural Science Agroekotek View
Akhmad Rizali
Institut Pertanian Bogor
Agriculture, Biological Sciences & Forestry Earth & Planetary Sciences

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Ants in Tropical Urban Habitats: The Myrmecofauna in a Densely Populated Area of Bogor, West Java, Indonesia AKHMAD RIZALI; MERIJN MARINUS BOS; DAMAYANTI BUCHORI; SEIKI YAMANE; CHRISTIAN HANSJOACHIM SCHULZE
HAYATI Journal of Biosciences Vol. 15 No. 2 (2008): June 2008
Publisher : Bogor Agricultural University, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (184.437 KB) | DOI: 10.4308/hjb.15.2.77

Abstract

Ants are the most abundant animals in tropical habitats and have been widely studied in natural and semi-natural tropical systems. However, species in urban tropical habitats remain poorly studied, despite their abundance and potentially important roles in urban ecosystems and pest dynamics. We investigated the ant fauna of Bogor and its surroundings to contribute to the characterization of the myrmecofauna of one of Southeast Asia’s most densely populated regions. Ants were collected both by hand collection and from honey baits in the most common habitats: garbage dumps, households, and home gardens. In total, 94 species were recorded, over two thirds of which occurred in home gardens, which underlines the importance of vegetated habitats for urban planning to support complex ant assemblages. Twelve sampled species are well-known as tramp species that occur primarily in human-dominated landscapes. The two tramp species Anoplolepis gracilipes and Paratrechina longicornis dominated ant assemblages in all locations and most habitat types. The assemblages of tramp species were affected by habitat type, whereas that of non tramp species were not. Forty-five species were also recorded in the Bogor Botanical Garden and five species are also known to be common in cacao agroforests. Hence, research in urban tropical habitats can increase our knowledge of the occurrence of ant species, allowing us to better assess the biodiversity and conservation potential of semi-natural habitats. Key words: ants, tramp species, invasive species, biotic homogenization, urban habitats
Susceptibility of Maize Genotypes to Maize Weevil Sitophilus zeamais Motsch. (Coleoptera: Curculionidae) Bambang Tri Rahardjo; Ludji Pantja Astuti; Arifin Noor Sugiarto; Akhmad Rizali
AGRIVITA, Journal of Agricultural Science Vol 39, No 3 (2017): OCTOBER
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.v39i3.1278

Abstract

One possibility to protect the maize from storage pests is by developing genotypes that resistant to maize weevil (Sitophilus zeamais Motsch). The research was aimed to evaluate the susceptibility of several maize genotypes including local variety to the maize weevil. Six genotypes i.e. SJA, G10-12-20, G10-1-3, G10-1-7, G10-1-20 and G10-1-17 and Tosari as local variety were used. No-choice assay under laboratory condition with observed variables was laid an egg and F1 progeny number, the median time of development and weight loss of infested kernel. The susceptibility index was assessed using Dobie’s susceptibility index. Results showed that the number of eggs laid by five females and infested samples weight loss were not significantly different between six maize genotypes as well as local variety. In contrast, the number of F1 progeny emerged was significantly different. Based on the susceptibility index, the maize genotype of G10-1-3 and G10-1-17 were resistant to the weevil. While other maize genotypes and local variety were considered as moderate resistant. Based on analysis of chemical and physical characteristic revealed that maize genotypes with higher of the total phenolic compound and physical hardness tend to resist from weevil damaged.
EFEKTIVITAS PEMBERIAN BEBERAPA JENIS PUPUK ORGANIK TERHDAP PERTUMBUHAN DAN HASIL TANAMAN BAWANG MERAH (Allium ascalonicum L.) Muhammad Irvani Habibie; Akhmad Rizali; Antar Sofyan
Agroekotek View Vol 2, No 2 (2019)
Publisher : Universitas Lambung Mangkurat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20527/agtview.v2i2.748

Abstract

Shallot is a horticulture plant that is best known to the public because it has a very important meaning in life, one of which is as a kitchen spice or a complete spice. One effort that can be done to increase shallot production is by cultivating shallots varieties that are in accordance with climatic and soil conditions and by applying organic fertilizers in order to reduce the high price of shallots in the market. Organic fertilizers are developed in order to create quality fertilizers that are able to restore land productivity and can reduce the application of chemical or synthetic fertilizers. The purposeeof this study wasnto determine the effectiveness of giving several types of organicnfertilizers to the growthnandnyield of shallots (Allium ascalonicum L.). This research was conducted using one factor randomized block design (RBD), which consisted of 4 treatment levels, namely P1: control; P2: organic fertilizer based on chicken manure 2 kg / plot; P3: organic fertilizer made from cow dung 2 kg / plot; and P4: organic fertilizer made from water hyacinth 2 kg / plot. The results of this study indicate that there is effectiveness in the treatment by providing several types of organic fertilizers made from chicken manure (P2), cow manure (P3), and water hyacinth (P4) which have a significant effect on plant height, leaf number, and wet weight tuber on red onion plants, and the results obtained that fertilizer made from chicken manure are better organic fertilizers to increase the growthnandnproduction of shallots.
PENGARUH PEMBERIAN DOSIS MIKORIZA TERHADAP PERTUMBUHAN VEGETATIF PADA TANAMAN CABAI RAWIT HIYUNG Muhammad Maulidinor; Akhmad Rizali; Antar Sofyan
Agroekotek View Vol 2, No 2 (2019)
Publisher : Universitas Lambung Mangkurat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20527/agtview.v2i2.737

Abstract

Chili Rawit Hiyung is one of the typical Chili Pepper in South Kalimantan province which is located in the village of Hiyung, Tapin Tengah District, Tapin Regency. This Hiyung Rwit Chili has been registered with the Plant Variety Protection Center and Agricultural Licensing of the Ministry of Agriculture of the Republic of Indonesia with Number 09 / PLV / 2012 dated 12 April 2012 as a Local Chili Variety by the name of Chili Rawit Hiyung. Mycorrhiza is a symbiotic association between certain fungal myceliums and high levels of plant roots. mycorrhizae have the ability to associate with almost 90% of plants consisting of agricultural, plantation, forestry, and feed crops and help increase efficiency in absorption of nutrients, especially phosphorus on marginal land. The study also had the objective of knowing the effect of mycorrhizal administration and mycorrhizal dose on vegetative growth with hiyung cayenne pepper carried out at the Wahana Borneo Institute of North Loktabat Experimental Garden, Banjarbaru using a one-factor Randomized Design (RBD), namely four mycorrhizal treatments (ie Controls, MK1, MK2, MK3 and MK4). The mycorrhizal dose given is 10 g / po; ybag, 20 g / polybag, 30 g / polybag and 40 g / pilybag. From this study the results showed that the administration of mycorrhizae had a very significant effect on the number of flowers, but did not significantly affect plant height, leaf width and many leaves.
Penggunaan Pupuk Kandang pada Pertumbuhan Awal Tanaman Stroberi (Fragaria Sp.) di Tanah Gambut I Made Tomi Anggara; Akhmad Rizali; Rabiatul Wahdah
Agroekotek View Vol 3, No 1 (2020)
Publisher : Universitas Lambung Mangkurat

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (792.334 KB) | DOI: 10.20527/agtview.v3i1.1404

Abstract

Strawberry plant (Fragaria sp. ) is any kind of fruit having high economic value. In organic farming can be used fertilizer was made by feses waste cattle in which the waste has can change expensive chemical fertilizer. The lowlands are the vast expanse of land with the level of altitude as measured from sea level is relatively low, it is between 0 up to 200 masl. One of the ground in the lowlands is peaty soil. Therefore this study using peaty soil who are in the Suka Maju Village. The purpose of this research to find out the influence of manure on the growth of early strawberry crops in lowland and to know the best dosage early growth strawberry cropping in the peaty soils. This study using a randomized complete design single factor that is a factor contains chicken manure with 8 level treatment. The treatment is applied namely P1 (200 g chicken manure), P2 (300 g chicken manure), P3 (400 g chicken manure), P4 (500 g chicken manure), P5 (200 g cow manure), P6 (300 g cow manure), P7 ( 400 g cow manure) and P8 ( 500 g cow manure). The results of studies indicate the use of manure to the growth early strawberries (Fragaria sp.) on the peaty soil effect has significant different to the parameters the number of branches and real bearing on the number of parameters leaves age 14 weeks after planting parameters and dosage of the best in the number of the branch of the age of 14 weeks after planting with treatment P8 = 16,68 as well with the dose 500 g, to the parameters number of leaves age 14 weeks after planting is P8 = 65,00 g treatment and 500 g dose.     
Aplikasi Pupuk Organik Cair Daun Gamal Menggunakan Trichoderma harzianum Terhadap Pertumbuhan dan Hasil Tanaman Terung Ungu Khairunanissa Khairunanissa; Akhmad Rizali; Noor Khamidah
Agroekotek View Vol 2, No 3 (2019)
Publisher : Universitas Lambung Mangkurat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20527/agtview.v2i3.1215

Abstract

The manufacture of poc use leaves gamal use the application of trichoderma harzianum in order to increase the pace of growth the limb of the results of a plant eggplant purple.This study using random design complete single factor consisting of Tu0: without granting, poc Tu1 poc: leaves gamal 40ml/l water, Tu2 poc: leaves gamal 80ml/l water and poc Tu3 leaves gamal 120ml/l water. Research parameters observed in form of higher plants (cm); number of leaves (strands); the number of flowers (fruit); the number of fruit (fruit) and heavy fruit (g). Based on research that has been obtained the provision of poc leaves gamal by fermentation trichoderma harzianum with highest dose of 120ml/l water able to give increased the result in higher plants, the number of, leaves the number of heavy fruit eggplant. interest as well a doses of 120ml / l is not able to increase the number of fruit on plant eggplant on the research has been implemented.
Uji Daya Hambat Trichoderma spp. Isolat Kabupaten Kapuas Kalimantan Tengah Terhadap Collettotrichum spp. pada Cabai Jabbarsyah I Lubis; Yusriadi Yusriadi; Akhmad Rizali
Agroekotek View Vol 1, No 3 (2018)
Publisher : Universitas Lambung Mangkurat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20527/agtview.v1i3.706

Abstract

This study aims to determine the inhibition power of Trichoderma spp. isolate of Kapuas Regency, Central Kalimantan to Colletotricum spp. And to know the difference in the ability to inhibit Trichoderma spp., Based on the location of the soil (rice field, moor and pepper crops) in Kapuas District. Trichoderma spp capability testing against Colletotrichum spp. performed on PDA media, with a double culture technique, ie by growing in pairs Trichoderma spp and Colletotrichum spp. Based on the data of the analysis of variance, the applied treatment did not give effect to the percentage of pathogen resistance of Colletotrichum spp., But Trichoderma spp. of various isolates were able to inhibit Colletotrichum spp. percentage of inhibition of Colletotrichum spp. the smallest is in the application of Trichoderma spp. isolate soil location B (TCSB) and then followed by Trichoderma spp. field A soil isolates (TCSA). While the percentage of inhibition of Colletotrichum spp. the largest is in the application of Trichoderma spp. soil isolates of B (TCCB) chili plants followed by Trichoderma spp. chili plant ground isolate A (TCCA).
Co-Authors Antar Sofyan Arifin Noor Sugiarto Bambang Tri Rahardjo CHRISTIAN HANSJOACHIM SCHULZE DAMAYANTI BUCHORI Elfrida Ratnawati I Made Tomi Anggara Jabbarsyah I Lubis Khairunanissa Khairunanissa Ludji Pantja Astuti MERIJN MARINUS BOS Muhammad Irvani Habibie Muhammad Maulidinor Noor Khamidah Rabiatul Wahdah SEIKI YAMANE