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The Species of Rice Bug (Leptocorisa oratorius Fabricius) Egg Parasitoids in Rice Field in West Sumatera, Indonesia Fri Maulina; Novri Nelly; Hidrayani Hidrayani; Hasmiandy Hamid
Jurnal Ilmu dan Teknologi Terapan Pertanian Vol 4 No 1 (2020): Journal of Applied Agricultural Science and Technology
Publisher : Politeknik Pertanian Negeri Payakumbuh

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32530/jaast.v4i1.150

Abstract

The species of egg parasitoid in rice bug is necessary to know to be used as biological agent in the field. The research aimed to determine spesies of parasitoid, diversity index, parasitization level and parasitoid mortality which found in rice bug eggs in rice fields in West Sumatra. Purposive random sampling was used in this research for determining the sampling locations. Collecting eggs sampling was conducted for 1 km along transect line in sampling location. The collected eggs of 12 sampling locations then observed and identified in Laboratory of Insect Bioecology, Faculty of Agriculture, Andalas University. The result showed that the kind of egg parasitoid found in the field were Hadronotus leptocorisae and Ooencyrtus malayensis with each parasitization level were 22.3 ± 11.1 % and 4.2 ± 5.3 %, each the mortality were 57.8 ± 26.4% and 30.6 ± 37%, the diversity of egg parasitoid was low with the index 0.3858 Based on Shannon-Wienner.
Aplikasi POC Urin Sapi pada Padi SRI di Jorong Ganting Taram Nelson Tat Elita; Muflihayati; Fri Maulina; Wiwik Hardaningsih
Dinamisia : Jurnal Pengabdian Kepada Masyarakat Vol. 6 No. 3 (2022): Dinamisia: Jurnal Pengabdian Kepada Masyarakat
Publisher : Universitas Lancang Kuning

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31849/dinamisia.v6i3.9966

Abstract

Jorong Ganting Taram farmers cultivating rice using conventional systems, production is still low, namely ± 4.5 tons h-1 . The Ganting Malay Farmers Group is a pioneer to change the SRI method of rice cultivation with cow urine POC technology with EM4 activator and indigenous microbes. The purpose of implementing this community service is to increase rice production at a lower cost so as to increase yields and farmers' opinions. Activities are carried out in three ways: a) Socialization and Counseling, b). Training to make cow urine POC, c) SRI method rice demonstration plot with cow urine POC. The results of the socialization and extension of rice using the SRI and POC methods of cow urine with EM4 activator and indigenous microbes gave good value to the understanding of the material and the ability to implement. The training on making cow urine POC and applied to the rice demonstration plot using the SRI method increased the growth and yield of rice compared to the conventional system. Conclusion: SRI method of rice cultivation with cow urine POC technology increases rice yields and farmers' income.
Exploration And Morphology Identification of Spores Asbuscular Mycorrhizal Fungi from Horticultural Plantation Eka Susila; Sari Rukmana Okta Sagita Chan; Benny Satria Achmad; Fri Maulina
Journal of Applied Agricultural Science and Technology Vol. 6 No. 1 (2022): Journal of Applied Agricultural Science and Technology
Publisher : Green Engineering Society

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (469.922 KB) | DOI: 10.55043/jaast.v6i1.31

Abstract

Differences in location and rhizosphere cause differences in species diversity and population of Arbuscular Mycorrhizal Fungi (AMF). In addition, not all AMF have the same morphological and physiological characteristics, therefore it is very important to know their identity. This study aims to determine the presence and number of spores as well as to determine the morphological characteristics of AMF originating from the rhizosphere of several horticultural crops in the agricultural land of Payakumbuh State Agricultural Polytechnic. The method used in this research is descriptive exploratory method by means of purposive sampling for soil sampling. While the stages of this research include: taking and collecting data in the field, determining the point of location for soil sampling, taking soil samples, analyzing soil properties in the laboratory, isolating AMF spores and identifying AMF spores morphologically. The conclusions of this study are 1) The population of AMF spores in horticultural land is high. The highest spore population was found in soil samples of the root area of shallot plants (556 spores per 10 g of soil), while the lowest number of spores was in soil samples of eggplant root areas (271 spores per 10 g of soil), 2) AMF exploration in several horticultural crops in the agricultural land of the Payakumbuh State Agricultural Polytechnic, based on morphological identification (shape, color and size), the AMF found consisted of three genera, namely Glomus sp, Gigaspora sp, and Scutelospora sp.
The Effect of Indigenous AMF Applications on The Morpho-Physiological Characteristics of Two Varieties of Shallots on Drought Stress Conditions Eka Susila; Fri Maulina; Aswaldi Anwar; Auzar Syarif; Agustian Agustian
Journal of Applied Agricultural Science and Technology Vol. 7 No. 2 (2023): Journal of Applied Agricultural Science and Technology
Publisher : Green Engineering Society

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55043/jaast.v7i2.80

Abstract

One of the limiting conditions for shallot plants to grow optimally is dry land conditions. Indigenous AMF application is one way to overcome this condition. This study aimed to determine the effect of indigenous AMF application on the morpho-physiological characters of two shallot varieties which are sensitive and tolerant to drought stress conditions. The study was carried out for 6 months on a wirehouse and laboratory scale. The Experiment used a completely randomized design with two factors. The first factor was varieties of shallots, i.e. Brebes (Sensitive) and Kuning (Tolerant) varieties of shallots. The second factor was the application of indigenous AMF which consisted of 5 levels i.e. Glomus sp1, Glomus sp2, Glomus sp3, a mixed those three isolates and control treatment (without application of AMF). The morpho-physiological observation parameters included header dry weight, root weight, and leaf proline content. From the observations, it can be concluded that under stressed conditions, the leaf proline content of the sensitive variety accumulated higher in the header than the tolerant variety, because the tolerant variety was better able to produce higher root and header weights when adapting than the sensitive. AMF inoculation did not show significant differences with the treatment without AMF inoculation on leaf proline. However, there was a tendency that inoculation of a mix of AMF isolates (Glomus sp1+Glomus sp2+ Glomus sp3) decrease the proline content in the leaves, both in sensitive and tolerant varieties so that plants are more resistant to drought stress.
DISTRIBUSI PARASITOID Ooencyrtus malayensis DI PERTANAMAN PADI SUMATERA BARAT: KANDIDAT PENGENDALI HAYATI WALANG SANGIT (Leptocorisa oratorius F.) Fri Maulina; Muflihayati Muflihayati
LUMBUNG Vol. 19 No. 2 (2020): Agustus
Publisher : Politeknik Pertanian Negeri Payakumbuh

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (656.471 KB) | DOI: 10.32530/lumbung.v19i2.206

Abstract

Pemberdayaan musuh alami hama seperti parasitoid Ooencyrtus malayensis sebagai pengendali hayati walang sangit dapat meminimalisir penggunaan insektisida kimia dan memiliki nilai positif yaitu mengendalikan hama pada stadia awal perkembangannya. Tujuan penelitian adalah: menentukan distribusi populasi parasitoid pada topografi Sumatera Barat yang berbeda, dan menentukan tingkat parasitisasi, dominansi dan mortalitas parasitoid tersebut. Pengambilan sampel telur walang sangit terparasit di lokasi padi sawah dengan metode stratifield sampling pada tiga ketinggian tempat yaitu: Sungai Sapih Kota Padang, Rendah (20 m dpl ), Tanjung Pati Kabupaten Limapuluh Kota, Sedang (500 m dpl), dan Kubang Putih Kabupaten Agam, Tinggi (975 m dpl). Sampel telur diamati di laboratorium untuk mengetahui telur yang terparasit oleh O. malayensis dan selanjutnya data dianalisis. Hasil penelitian membuktikan bahwa distribusi parasitoid O. malayensis lebih dominan pada lokasi lokasi dataran rendah selanjutnya dataran sedang sedangkan pada dataran tinggi tidak ditemukan. Tingkat parasitisasi pada dataran rendah dan tinggi adalah 13% dan 6%. Sedangkan nilai mortalitas parasitoid O. malayensis pada dataran rendah dan tinggi adalah 17 % dan 33 %. Dari penemuan ini disimpulkan bahwa parasitoid O. malayensis menyukai lokasi dengan ketinggian rendah dri permukaan laut dan dapat memparasitisasi telur walang sangit dengan tingkat serangan yang cukup tinggi.
INVENTARISASI PENYAKIT TANAMAN PADI DI SEKITAR POLITEKNIK PERTANIAN NEGERI PAYAKUMBUH Muflihayati, Muflihayati; Maulina, Fri
LUMBUNG Vol. 20 No. 2 (2021): Agustus
Publisher : Politeknik Pertanian Negeri Payakumbuh

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (589.509 KB) | DOI: 10.32530/lumbung.v20i2.377

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Penyakit tanaman merupakan salah satu faktor penghambat untuk meningkatkan produksi tanaman. Hal ini juga menurunkan kuantitas dan kualitas produksi tanaman dan menyebabkan penurunan pendapatan petani, bahkan menyebabkan kehilangan hasil. Pengendalian penyakit tanaman harus dilakukan dengan tepat agar tidak memberikan dampak negatif terhadap lingkungan dan input yang rendah pula. Oleh karena itu, petani harus mengidentifikasi dan memastikan tingkat keparahan penyakit tanaman sebelum melakukan pengendalian. Tujuan dari penelitian ini adalah inventarisasi penyakit tanaman padi di Politeknik Pertanian Negeri Payakumbuh. Metode purposive sampling dan deskriptif digunakan dalam penelitian ini. Berdasarkan penelitian, beberapa penyakit yang ditemukan di lahan sawah yaitu bercak coklat (Helminthosporium oryzae), bercak coklat sempit (Cercospora oryzae), blas (Pyricularia grisea), hawar daun bakteri (Xanthomonas oryzae pv. oryzae), dan smut (Ustilagonoidea virens).
Microbial Population and Nutrient Content of a Biofertilizer Containing Azotobacter sp. and Pseudomonas fluorescens with Different Carrier Materials After Storage Elita, Nelson; Erlinda, Rita; Yefriwati, Yefriwati; Yanti, Rinda; Sari, Deliana Andam; Illahi, Ayu Kurnia; Maulina, Fri; Hasan, Nor’ Aishah
Journal of Applied Agricultural Science and Technology Vol. 9 No. 1 (2025): Journal of Applied Agricultural Science and Technology
Publisher : Green Engineering Society

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55043/jaast.v9i1.365

Abstract

Biofertilizers contain N-fixing and P-solubilizing bacteria. The microbial population is dynamic and influenced by nutrient availability and storage temperature. Maintaining microbial populations requires appropriate carrier media to maximize microbial viability. The aim of the research is to determine the appropriate carrier material for the biofertilizer after storage based on the nutrient content and microbial population. The experiment utilized a completely randomized design with seven treatments and four replications, resulting in 28 experimental units. The treatments were as follows: B0 = Compost, B1 = Compost + Bacteria (Azotobacter and Pseudomonas fluorescens), B2 = Compost + Bacteria (Azotobacter + P. fluorescens) + Molasses, B3 = Compost + bacteria (Azotobacter + P. fluorescens) + CMC, B4 = Compost + bacteria (Azotobacter + P. fluorescens) + Arginine, B5 = Compost + bacteria (Azotobacter + P. fluorescens) + Sugar + CMC, and B6 = Compost + bacteria (Azotobacter + P. fluorescens) + Molasses + Arginine. The study results showed that the highest bacterial colonies were observed seven days after storage in treatment B2, reaching 156.33 CPU. The highest bacterial population growth in the first month was recorded in treatment B5; however, in months 2, 3, 4, and 5, treatment B2 exhibited the highest bacterial colony population. The pH remained more stable in treatments B2, B4, and B6. The highest nutrient content, including pH, N, P, K, and C/N ratio, was recorded in treatment B2, respectively, with values of 6.67, 2.49%, 2.04%, 1.77%, and 20.01. Findings in this study suggested the potential biofertilizer can be applied in the field to reduce dependence on chemical fertilizers to support sustainable agriculture.
Jenis Hama Buah Kakao dan Tingkat Serangannya di Kota Payakumbuh, Sumatera Barat Yudha, Pajri Ananta; Dwipa, Indra; Maulina, Fri
Jurnal Agroekoteknologi Vol 17, No 1 (2025)
Publisher : Jurusan Agroekoteknologi Fakultas Pertanian Untirta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33512/jur.agroekotetek.v17i1.31647

Abstract

Cocoa is a main commodity in contributing to Indonesian foreign exchange. The main problem in cocoa cultivation is cocoa pod pest that could decrease production significantly. The research aimed to know the cocoa pod pests and attack level in Payakumbuh municipality. The study was conducted in Payakumbuh municipality and Laboraory of Pest, Faculty of Agriculture, Riau University from October to December 2023. Survey method was used in the study and purposive random sampling was used to determine the sampling. The criteria to determine the locations were ± 0.5 hectare of cocoa plantation and age of cocoa plant ± 4 years. According to criteria, 2 districts were chosen, Lamposi Tigo Nagari and Payakumbuh Timur. In each district, 5 sub-districts were chosen and in each sub-district, 2 cocoa plantations were chosen. The imaginary diagonal line was formed to determine the sampling plants. The result showed that there were four pests that attacked cocoa pod in Payakumbuh, Cocoa pod borer (CPB) (Conopomorpha cramerella), Helopeltis spp., rat and squirrel.The percentage of attacked plant by CPB was 10.60%,  percentage of attacked pod was 1.46% and attack intensity was 0.66%. For Helopletis spp., the percentage of attacked plant was 78.20%, the percentage of attacked pod was 57.75% and attack intensity was 37.50%. The percentage of attacked plant by rat and squirrel was 52.50% and the percentage of attacked pod was 42.17%.