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ENVIRONMENTAL FACTORS AFFECTING PRODUCTIVITY OF TWO INDONESIAN VARIETIES OF BLACK PEPPER (Piper nigrum L.) Yudiyanto, Yudiyanto; Rizali, Akhmad; Munif, Abdul; Setiadi, Dede; Qayim, Ibnul
AGRIVITA, Journal of Agricultural Science Vol 36, No 3 (2014)
Publisher : Faculty of Agriculture University of Brawijaya and Indonesian Agronomic Assossiation

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Abstract

Black pepper plantation area in Lampung province (the biggest producer area within Indonesia) has decreased from time to time, which might be related to unfavourable environmental condition. The aim of this study was to assess which environmental factors are positively or negatively correlated with productivity in particular yield of two local varieties of black pepper plant (Natar 1 and Natar 2) in Lampung province.  Two observational studies were carried out in the present study i.e. phenological development and productivity of black pepper productivity in related to various environmental factors. Our results showed that productivity of two varieties were significantly affected rainfall, light intensity and micro humidity. Dry matter yield was positively correlated with rainfall, both in Natar 1 and Natar 2. It was concluded that among environmental factors affecting productivity of black pepper, rainfall intensity was the most influencing factor with a positive relationship with the productivity.Keywords: Black pepper, climate, cultivar, environment, Indonesia
Impact of Invasive Ant Species in Shaping Ant Community Structure on Small Islands in Indonesia Rizali, Akhmad; Rahim, Abdul; Sahari, Bandung; Prasetyo, Lilik Budi; Buchori, Damayanti
JURNAL BIOLOGI INDONESIA Vol 7, No 2 (2011): JURNAL BIOLOGI INDONESIA
Publisher : Perhimpunan Biologi Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14203/jbi.v7i2.3083

Abstract

Dampak Invasiv Species Semut pada Pembentukan Struktur Komunitas Semut di Kawasan Pulau-Pulau Kecil di Indonesia. Peneletian tentang pengaruh spesies invasif di kawasan pulau-pulau kecil menjadi perhatian konservasi yang sangat penting,teristimewa pengaruhnya terhadap fauna lokal dan teristimewa untuk semut-semut endemik yang menjadi kajian pada penelitian ini. Pada kajian ini penelitian dilakukan di tiga pulau yaitu Pulau Bokor, Rambut dan Untung Jawa. Semut diambil menggunakan metode pitfall trap. Metode penghitungan dengan model korelasi dan linier digunakan untuk mengukur penyebarannya secara acak di setiap pulau. Diperoleh tiga species invasif dua diantaranya yaitu Solenopsis geminata dan Paratrechina longicornis dapat dijumpai di ketiga pulau tersebut sedangkan untuk Anoplolepis gracilipes hanya dijumpai di Pulau Rambut. A. gracilipes dan S. geminata merupakan spesies yang melimpah dan komposisi keterdapatannya berkorelasi dengan faktor habitat (F2, 52 = 19.469, p<0.001).Kata kunci: Semut, keragaman jenis, spesies invasif
KOMUNITAS LEPIDOPTERA DAN PARASITOIDNYA PADA PERTANAMAN MENTIMUN DI BOGOR, SUKABUMI DAN CIANJUR, JAWA BARAT Ulina, Evawaty S.; Rizali, Akhmad; ., Pudjianto; Manuwoto, Sjafrida; Buchori, Damayanti
JURNAL HAMA DAN PENYAKIT TUMBUHAN TROPIKA Vol 16, No 2 (2016): SEPTEMBER, JURNAL HAMA DAN PENYAKIT TUMBUHAN TROPIKA
Publisher : Universitas Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1920.066 KB) | DOI: 10.23960/j.hptt.216184-195

Abstract

Lepidopteran community and its parasitoid on cucumber field in Bogor, Sukabumi and Cianjur District, West Java. Cucumber is one of horticultural commodities that are widely cultivated in Indonesia, but information related to Lepidoptera pests and their parasitoids are limited. The aim of this study was to obtain information about Lepidopteran community on cucumber and their parasitoid diversity. Lepidopteran larvae were collected from 16 cucumber sites in the District of Bogor, Sukabumi and Cianjur in November 2014 until May 2015. Larvae were collected from each cucumber plant follow along 60 m transects. Larvae were collected from the field then brought to the laboratory. All larvae were then reared on cucumber leaves until pupation and parasitoids emerged. The data obtained were tested by analysis of the mean and analysis of variance (One way ANOVA) using the program R Stat. The results showed that cucumber plants were attacked by six species (morphospecies) belonging to four families of Lepidoptera. Diaphania indica (Saunders) (Lepidoptera: Crambidae) is the most abundant species found. All species (morphospecies) of Lepidoptera are more common when the cucumber plants are in the generative growth stage. Our result further showed that D. indica was attacked by 9 parasitoid larvae and 3 parasitoid pupae, C. chalcites (Lepidoptera: Noctuidae) by 5 parasitoids dan S. litura (Lepidoptera: Noctuidae) by 2 parasitoids. A braconid, Apanteles taragamae, is the most common parasitoid of D. indica found in the field. Its parasitism rate can reach 27% in the field. Overall, this research revealed that a number of parasitoids, that were found attacking Lepidopteran on cucumber indicates their potential use as biological control agents in this agroecosystems.
IMPACT OF INVASIVE ANT SPECIES IN SHAPING ANT COMMUNITY STRUCTURE ON SMALL ISLANDS IN INDONESIA Rizali, Akhmad; Rahim, Abdul; Sahari, Bandung; Prasetyo, Lilik Budi; Buchori, Damayanti
JURNAL BIOLOGI INDONESIA Vol 7, No 2 (2011): JURNAL BIOLOGI INDONESIA
Publisher : Perhimpunan Biologi Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14203/jbi.v7i2.3083

Abstract

Dampak Invasiv Species Semut pada Pembentukan Struktur Komunitas Semut di Kawasan Pulau-Pulau Kecil di Indonesia. Peneletian tentang pengaruh spesies invasif di kawasan pulau-pulau kecil menjadi perhatian konservasi yang sangat penting,teristimewa pengaruhnya terhadap fauna lokal dan teristimewa untuk semut-semut endemik yang menjadi kajian pada penelitian ini. Pada kajian ini penelitian dilakukan di tiga pulau yaitu Pulau Bokor, Rambut dan Untung Jawa. Semut diambil menggunakan metode pitfall trap. Metode penghitungan dengan model korelasi dan linier digunakan untuk mengukur penyebarannya secara acak di setiap pulau. Diperoleh tiga species invasif dua diantaranya yaitu Solenopsis geminata dan Paratrechina longicornis dapat dijumpai di ketiga pulau tersebut sedangkan untuk Anoplolepis gracilipes hanya dijumpai di Pulau Rambut. A. gracilipes dan S. geminata merupakan spesies yang melimpah dan komposisi keterdapatannya berkorelasi dengan faktor habitat (F2, 52 = 19.469, p<0.001).Kata kunci: Semut, keragaman jenis, spesies invasif
EFFECT OF NATURAL HABITAT ON DIVERSITY OF HEMIPTERAN PREDATOR IN OIL PALM PLANTATION Rizali, Akhmad; Himawan, Toto; Fitriani, Ima; Rahardjo, Bambang Tri; Karindah, Sri; Puspitarini, Retno Dyah; Sahari, Bandung
JURNAL HAMA DAN PENYAKIT TUMBUHAN TROPIKA Vol 18, No 1 (2018): MARCH, JURNAL HAMA DAN PENYAKIT TUMBUHAN TROPIKA
Publisher : Universitas Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (490.923 KB) | DOI: 10.23960/j.hptt.11875-82

Abstract

Effect of Natural Habitat on Diversity of Hemipteran Predator in Oil Palm Plantation. Utillization of natural enemies in controlling oil palm pests still encounters obstacles, in particular, how natural enemies can survive and establish in oil palm plantations. The existence of natural habitats around oil palm plantations can allegedly support the occurence of natural enemies. The objective of this study was to investigate the effect of the presence of natural habitats on diversity of hemipteran predators in oil palm plantations. Field research was conducted in oil palm plantations located in Pangkalan Bun, Central Kalimantan. The plots were oil palm plantations with different distances from natural habitat i.e. near (less than 200 m), medium (about 2 km) and far (about 5 km). Each plot was selected six trees for fogging using insecticide with active ingredient lamda cyhalothrin. Based on research result, diversity of hemipteran predator in oil palm plantion was found 19 species belong to 2 families. The most dominant hemipteran predator was Sycanus sp., Eocanthecona sp. and Reduviidae sp5. The distance of oil palm plantation from natural habitat did not affect species richness, abundance and composition as well as recolonization of hemipteran predator in oil palm plantation. Abundance of hemipteran predator tend to decrease in different observation time, except Sycanus sp. Sycanus sp was likely has ability to rapidly recolonized and their occurrence were influenced by flowering vegetation in oil palm plantation.
ANTAGONISME FUNGI ENDOFIT DAUN JARAK PAGAR (JATROPHA CURCAS) TERHADAP FUSARIUM OXYSPORUM C2 PENYEBAB BUSUK UMBI PADA BAWANG MERAH IN VITRO Nahdah, Fauziyyah; Sari, Noorkomala; Rizali, Akhmad; Wahdah, Rabiatul
Agrotechnology Research Journal Vol 4, No 1 (2020): Agrotechnology Research Journal
Publisher : Perhimpunan Agroteknologi/Agroekoteknologi Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (824.177 KB) | DOI: 10.20961/agrotechresj.v4i1.41351

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Basal plate rot is a major disease on shallot caused by Fusarium oxysporum. Endophytic fungi is promising to use as antagonist agent to the pathogen. Endophyte is microbes that are living in plant cells and have an asymptomatic characteristic. Nowadays, fungal endophyte is believed to produce antimicrobial substances similar with their plant host's natural product. Jatropha curcas is one of the plants containing secondary metabolites that have antifungal activities. The research aimed to study the ability of endophyte from Jatropha curcas to inhibit the growth of Fusarium oxysporum. The dual culture method was used in this research and the data were analyzed by SPSS software. This antagonism test was conducted by 9 isolates endophyte and each plate consisted of 3 replicates. The result revealed endophyte fungal obtaining 9 isolates with the radial growth of 4,5 cm/2 days. Endophytes of Jatropha curcas L. were able to inhibit the growth of Fusarium oxysporum C2. The percentage of inhibition of Fusarium oxysporum causing of root blight diseases was controlled by up 38.27 - 74.48%. The highest percentage of inhibition is gained by B4b and the lowest of it is A2b. Our observations showed that each endophyte has a consistent linear trend. B4b still leaded as the highest strength to inhibit the growth of pathogen on the monitoring of 3, 5, and 7 days. Moreover, the ability of fungi endophyte from Jatropha curcas as antagonist agent to Fusarium oxysporum needs to be further examined by the in vivo method.
Pengaruh Habitat dan Cara Pengendalian Hama terhadap Populasi dan Intensitas Serangan Tungau Karat Jeruk (Phyllocoptruta oleivora) Rudi Cahyo Wicaksono; Gatot Mudjiono; Akhmad Rizali; nFN Harwanto
Jurnal Hortikultura Vol 31, No 2 (2021): Desember 2021
Publisher : Indonesian Center for Horticulture Research and Development

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21082/jhort.v31n2.2021.p177-184

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[The Effect of Habitat and Pest Control Methods on the Population and Intensity of Attacks of Citrus Rust Mite (Phyllocoptruta oleivora)]Habitat di sekitar lahan dan cara pengendalian hama dapat berpengaruh terhadap populasi dan intensitas serangan hama tungau karat jeruk Phyllopcoptruta oleivora (Ashmead). Tujuan penelitian adalah mempelajari kepadatan populasi dan intensitas serangan hama tungau karat jeruk pada kondisi habitat di sekitar lahan dan cara pengendalian hama tanaman jeruk berbeda. Penelitian dilakukan pada 16 lahan jeruk milik petani yang tersebar pada tiga Kecamatan di Kabupaten Malang, Jawa Timur. Di setiap lahan ditentukan plot pengamatan berukuran 1.200 m2 dan setiap plot dipilih 10 tanaman jeruk secara purposive sampling untuk diamati kepadatan populasi dan intensitas serangan hama. Hasil penelitian diperoleh kepadatan populasi dan intensitas serangan tungau P. oleivora yang berbeda pada kondisi habitat berbeda. Kepadatan populasi dan intensitas serangan hama tungau pada habitat sekitar kebun jeruk (7,53 ekor dan 8,76 % per buah) lebih rendah dibanding pada habitat lain. Kondisi habitat sekitar lahan dapat merespon kemampuan hama untuk mempertahankan hidup dan bereproduksi. Pengendalian hama berdasarkan monitoring memengaruhi kepadatan populasi dan intensitas serangan hama tungau karat jeruk (4,82 ekor dan 5,45 % per buah). Manajemen habitat sekitar lahan pertanian dan cara pengendalian hama merupakan hal yang penting untuk dilakukan sebagai upaya strategi preventif dalam pencegahan serangan hama tungau P. oleivora.KeywordsJeruk; Habitat; Monitoring; Phyllopcoptruta oleivoraAbstractHabitat of the land and pest control methods can affect the population and intensity of attack by the citrus rust mite Phyllopcoptruta oleivora (Ashmead). The purpose of the study was to study was to know the population density and intensity of citrus rust mite attacks in habitat conditions around the land and different methods of controlling citrus pests. The study was conducted on 16 citrus farms owned by farmers spread over three Subdistricts in Malang Regency, East Java. Each plot of land was determined with a size of 1,200 m2 and 10 citrus plants were selected by purposive sampling for each plot to observe population density and pest attack intensity. The results showed that the population density and intensity of attack of P. oleivora mites were different in different habitat conditions. Population density and intensity of mite infestation in habitats around citrus gardens (7.53 individuals and 8.76% per fruit) were lower than in other habitats. Habitat conditions around the land can respond to the ability of pests to survive and reproduce. Pest control based on monitoring affects population density and intensity of attack of citrus rust mites (4.82 individuals and 5.45% per fruit). Habitat management around agricultural land and pest control methods are important things to do as a preventive strategy in preventing P. oleivora mite attacks. 
Parasitoid Diversity and Host-Parasitoid Interaction in Oil Palm Plantations with Different Management System Muhammad Iqbal Tawakkal; Damayanti Buchori; Akhmad Rizali; Adha Sari; Pudjianto Pudjianto
Jurnal Perlindungan Tanaman Indonesia Vol 23, No 1 (2019)
Publisher : Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/jpti.31232

Abstract

Parasitoids play an important role in controlling pests, including pests of oil palm. To maximize biological control technique using parasitoids, interactions between pests and parasitoids need to be studied. This research aimed to study parasitoid diversity and host-parasitoid interaction in oil palm plantation with the different management system. The field research was conducted in oil palm plantation own by smallholder and company (PT Humusindo) in Jambi. Sampling insects was conducted by collecting pests (parasitoid host) on oil palm trees with age of four years old. Eggs, larvae, and pupae of the pests were taken directly by hand then reared in the laboratory to know their parasitoids. Pests and parasitoids emerged were identified up to morphospecies or species level. A total of 176 lepidopteran pests consisting of 15 morphospecies and 6 families, and 650 parasitoids consisting of 21 morphospecies and 12 families have been collected. Nine morphospecies of pests from 25 individuals were found in smallholder plantation and 14 morphospecies of pests from 151 individuals in company plantation. Eight morphospecies of 26 parasitoids were found in smallholder plantations and 8 morphospecies of 624 parasitoids in the company plantation. The interaction structure between pests and parasitoids is more complex in the company plantation than in smallholder plantations. Family Braconidae and Ichneumonidae are the most parasitoids found and associated with nettle caterpillars. The different of the management system of oil palm plantation did not affect the diversity and abundance of pests as well as their parasitoids in oil palm plantations.
Collonization and Oviposition Preference of Six Weevil Species on Various Colors of Storage Container Ludji Pantja Astuti; Rommy Parcelino Prabowo; Akhmad Rizali; Mutala&#039;liah Mutala&#039;liah
Jurnal Perlindungan Tanaman Indonesia Vol 23, No 2 (2019)
Publisher : Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/jpti.40558

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Color preferences on post-harvest adult pests are useful for monitoring instrument development which based on the colonization and oviposition behavior. The research was aimed to determine the most attractive color with a certain wavelength for the test insects. The research was conducted in laboratory conditions of Plant Pest Laboratory, Department of Plant Pest and Disease, Faculty of Agriculture, University of Brawijaya at 27 ± 2°C, RH 65 ± 5%; and day:light 12:12 hours. Study of color preferences on six species of weevil used free choice test method and set by CRD with four replications using eight colors: white, red, orange, yellow, green, blue, indigo, and purple. The observed parameters were the number of adults and eggs laid. Results showed that each post-harvest insect had a different preference for various colors in the range of 380–450 nm wavelength. Adults of Sitophilus oryzae, Oryzaephilus surinamensis, O.s Mercator, and Tribolium castaneum were more preferred to feed and lay eggs in blue color (451–495 nm), Lasioderma serricorne was more preferred in indigo color (445–450 nm), and S. zeamais was more preferred in purple color (380–444 nm). The oviposition preference revealed that there was a positive correlation between the number of females and the egg laid.
Organic Matter in the Topsoil of Soybean Field Alters Arthropod Diversity and Their Covariation Akhmad Rizali; Julia Putri Pramudita; Eva Febriyanti; Yolla Frinsiska Rama; Tita Widjayanti
AGRIVITA, Journal of Agricultural Science Vol 41, No 3 (2019)
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.v41i3.2332

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The presence of organisms in soil play a pivotal role in the health of a ground ecosystem. Diversity and abundance of soil organisms are mainly influenced by soil characteristics and condition of above-ground habitat. This research aimed to study the diversity of arthropods in topsoil of soybean field and investigate factors that affect the abundance and interaction of dominant arthropods. Field research was conducted in three different locations in Malang District, Indonesia. A sampling of arthropods was focused in the topsoil of soybean fields in the soil surface and below-ground. Results found that three dominant taxa of arthropods in the topsoil of soybean field i.e. collembolan, ants, and mites. Different location of soybean field did not affect the species richness and abundance of the dominant arthropods, except the ant abundance. In contrast, soil strata was altered the abundance of collembolan and mites, but not ants. Based on the GLM (generalized linear model), organic matter had a positive relationship with the abundance of collembolan and ants. The abundance of collembolan and ants also had a relationship with mites, yet not vice versa. In conclusion, organic matter in the soybean field supports not only the abundance of arthropod but also their covariation.
Co-Authors Abdul Latief Abadi Abdul Munif ABDUL MUNIF Abdul Rahim Adha Sari Adha Sari Agustian, Hilmi Fadhil ALI NURMANSYAH Amalia, Dinda Rayhan Amin Setyo Leksono Aminuddin Affandi Anik Larasati Anik Larasati Annisa, Shafira Izza Apriani, Rila Rahma Apriyadi, Rion aziza, noor laili Badaruddin Badaruddin Bambang Tri Rahardjo BANDUNG SAHARI Bandung Sahari Berutu, Yenni Dadan Hindayana DAMAYANTI BUCHORI Damayanti Buchori Dede Setiadi Emha Dwi Rifqi Rafid Eva Febriyanti Evawaty S. Ulina, Evawaty S. Fahmi Sulthoni Farah, Nurin Nisa Fitriani, Ima Gading, Wira Gatot Mudjiono Gazali, Akhmad Gilang Aditya Rahayu Hadi, Mochamad Syamsul Hagus Tarno Hagus Tarno Hasby Hasriyanty Hasriyanty Hermanu Triwidodo Hudiwaku, Syarron Husna, Kamilatul Husni dan Zulfanazli Pudjianto Alfian Rusdy I Wayan Winasa IBNUL QAYIM Idham Sakti Harahap Ika Putri Utami Ika Putri Utami Imbran, Rusydy Johannis, Midzon Julia Putri Pramudita Jumar Jumar Khadijah Khadijah Khalid Atthariq Wiraguna Aseran Khamidah, Noor Kolopaking, Budiarto Kurniatun Hairiah LILIK BUDIPRASETYO Lizmah, Sumeinika Fitria Ludji Pantja Astuti Ludji Pantja Astuti Luna Lukvitasari Luqman Qurata Aini Mangan, Diky Hernika Mario, Muhammad Bayu Marpaung, Leny Theresia Putri Marsuni, Yusriadi Maula, Rohmatin Midzon Johannis Mihwan Sataral Mila mila Muhamad Ari Bachtiar Muhamad Nurhuda Nugraha Muhamad Nurhuda Nugraha Muhammad Badrus Sholih Muhammad Febriansyah Muhammad Imam Nugraha Muhammad Iqbal Muhammad Iqbal Tawakkal Muhammad Iqbal Tawakkal Muhammad Musthofa Al Akhyar Mutala'liah Mutala'liah Nahdah, Fauziyyah Najmi, Lailatun Nely Yuliastanti Nely Yuliastanti nFN Harwanto Nisa Ruwaidah Noorkomalasari, Noorkomalasari Novia Nikmatul Chikmah Novita Yuniasari Novita Yuniasari Nurhidayat, Alfin Permana, Anselmus Pramudya Andhika PURNAMA HIDAYAT Rahayu, Fitria Ariani Rahmawati, Gita Eka Rahmawati, Yunita Fera Rahmi, Nadia Rejeki, Endang Dwi Retno Dyah Puspitarini Rina Rachmawati Rommy Parcelino Prabowo Rudi Cahyo Wicaksono Saipul Abbas Saputra, Riza Adrianoor SARI, ADHA Sari, Noorkomala Sari, Yulia Padma SJAFRIDA MANUWOTO Sofyan, Antar Sri Karindah Sri Karindah Sulthoni, Fahmi Susilawati Susilawati Susilawati Susilawati syahputra, Arif firman Syarron Hudiwaku Tawakkal, Muhammad Iqbal Tazkiyatul Syahidah Theresia Rani Kartika Ayu Tita Widjayanti Toto Himawan Untung Santoso Wahdah, Rabiatul WINDRA PRIAWANDIPUTRA, WINDRA Woro Anggraitoningsih Noerdjito Yann Clough Yolla Frinsiska Rama Yudiyanto Yudiyanto Yudiyanto Yudiyanto Yudiyanto Yudiyanto Yudiyanto Yudiyanto Yuliastanti, Nely Yuniasari, Novita Zulfaidah Penata Gama