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INDONESIA
Jurnal Agrista
Published by Universitas Syiah Kuala
ISSN : 14103389     EISSN : 25979973     DOI : -
Core Subject : Agriculture,
Agriculture, Biological Sciences & Forestry
Jurnal Agrista merupakan salah satu wadah bagi peneliti untuk menyebarluaskan hasil-hasil penelitian di bidang ilmu Agroteknologi, Ilmu Tanah dan Proteksi Tanaman, selain itu Jurnal Agrista juga mencakup di bidang MIPA Biologi serta FKIP Biologi. Jurnal Agrista memuat laporan hasil penelitian atau makalah suntingan dengan topik Agroteknologi, Ilmu Tanah, serta Hama dan Penyakit Tumbuhan dari staf pengajar/peneliti di Fakultas Pertanian, Universitas Syiah Kuala Banda Aceh dan peneliti lainnya yang berasal dari Perguruan Tinggi Negeri dan Swasta serta Balai Penelitian.
Arjuna Subject : -
Articles 263 Documents
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PENGARUH UMUR PINDAH BIBIT DAN DOSIS PUPUK NPK DENGAN PENAMBAHAN PUPUK HAYATI TERHADAP PERTUMBUHAN DAN HASIL KUBIS BUNGA (Brassica oleraceae L.) Armidayani Armidayani; Syammiah Syammiah; Erita Hayati
Jurnal Agrista Vol 24, No 1 (2020): Volume 24 Nomor 1 April 2020
Publisher : Fakultas Pertanian, Universitas Syiah Kuala

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Penelitian ini bertujuan untuk mengetahui umur pindah bibit dan dosis Pupuk NPK Mutiara dengan penambahan pupuk hayati terhadap pertumbuhan dan hasil tanaman kubis bunga.Penelitian ini menggunakan Rancangan Acak Kelompok (RAK) pola faktorial 2x4 dengan 3 ulangan. Ada 2 faktor yang diteliti yaitu : faktor Umur Pindah Bibit yang terdiri dari 28 HSS dan 21 HSS, serta faktor Dosis Pupuk NPK Mutiara dengan Penambahan Pupuk Hayati terdiri dari 100%  NPK + 0 ml TGH, 75%  NPK + 10 ml TGH/l air, 50%  NPK + 10 ml TGH/l air dan 25%  NPK + 10 ml TGH/l air.Pelaksanaan penelitian meliputi persemaian, persiapan areal penanaman, pemupukan, penanaman, pemeliharaan, pemanenan dan pengamatan. Pengamatan dilakukan terhadap pertumbuhan dan hasil tanaman kubis bunga, yang terdiri dari tinggi tanaman umur 15, 30 dan 45 HST, Diameter pangkal batang umur 15, 30 dan 45 HST, jumlah daun per tanaman umur 15, 30 dan 45 HST, berat bunga per plot netto dan diameter bunga. Hasil penelitian menunjukkan umur pindah bibit berpengaruh sangat nyata terhadap tinggi tanaman umur 15 HST dan jumlah daun per tanaman umur 15 HST dan bepengaruh nyata terhadap jumlah daun per tanaman umur 30 HST. Pertumbuhan dan hasil tanaman kubis bunga cenderung lebih baik dijumpai pada perlakuan umur pindah bibit 28 HSS.Dosis pupuk NPK Mutiara dengan penambahan TGH berpengaruh nyata terhadap tinggi tanaman umur 30 HST. Pertumbuhan dan hasil tanaman kubis bunga cenderung lebih baik dijumpai pada perlakuan dosis pupuk 100% NPK+ 0 ml TGH.Terdapat interaksi yang sangat nyata antara perlakuan umur pindah bibit dan dosis pupuk NPK Mutiara dengan penambahan TGH terhadap berat bunga per tanaman dan terdapat interaksi yang nyata terhadap tinggi tanaman 15 dan 30 HST, diameter pangkal batang umur 15, 30 dan 45 HST, jumlah daun per tanaman umur 30 HST dan diameter bunga.
HISTO-CYTOLOGICA; CHANGES ACCOMPANIED BY THE FAILURE OF EMBRYOGENESIS UNDER HIGH TEMPERATURE CONDITIOM IN SNAP BEAN (Phaseolus vulgaris) Sabaruddin Zakaria; Buni Amin; Hasanuddin Hasanuddin
Jurnal Agrista Vol 7, No 3 (2003): Volume 7 Nomor 3 Desember 2003
Publisher : Fakultas Pertanian, Universitas Syiah Kuala

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Dibawah kondisi temperature normal, sel telur telah terjasi pembelahan pada 1 DAA (day after anthesis) sehingga lebih dari dua embrio terdapat didalam embryo sac. Sel embrio ini dikelilingi oleh coenocytic endosperm dengan sederet sel nuclear diobservasi pad adaerah micropil. Sejumlah butiran pati menjadi lebih daripada 10 cel yang panjangnya mencapai 200 µm. Pada tahap perkembangan ini, embrio dapat dibedakan sebagai suspwnsor dan embryo proper. Embrio diobservasi berbentuk bulat pada 3 samapai 4 DAA. Dalam kondisi temperatur tinggi tidak didapatkan perubahan struktural yang khusus samapai 1 DAA. Volume ovul berkurang dibandingkan dengan control pada 2 DAA. Selain dari pada itu, sel telur yang takterbuahi dengan integument yang abnormal diobservasi pada 2 dan 3 DAA. Embrio yang kurang berkembang diobservasi baik pada cv. Haibushi maupun cv. Wonder fibawah kondisi temperature tinggi.
ANALYSIS OF HYPERSPECTRAL DATA OF COTTON TO ESTIMATE VEGETATION INDICES UNDER DIFFERENT SOIL FERTILITY RATE Sugianto Sugianto
Jurnal Agrista Vol 7, No 3 (2003): Volume 7 Nomor 3 Desember 2003
Publisher : Fakultas Pertanian, Universitas Syiah Kuala

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Kesuburan tanah sangat penting untuk pertumbuhan kapas. Status kesuburan tanah akan mempengaruhi dosis pemupukan pada tanah. Distribusi spasial kesuburan tanah dilapangan akan mempengaruhi produktifitas. Oleh karena itu, data laboratorium pengindraan jauh dapat digunakan untuk mendeteksi dan menganalisis kesuburan tanah yang mempengaruhi pertumbuhan kapas. Tujuan penelitian ini adalah untuk menunjukkan bahwa pengukuran data hyperspectral dapat memberikan petunjuk perbedaan pertumbuhan pada tingkat kesuburan tanah yang berbeda dengan melakukan analisa index tanaman. Spetraradiometer didisain untuk mengoleksi septrum tanaman dibawah tingkat kesuburan tanah yang berbeda telah diuji cobakan. Beberapa rumus index tanaman digunakan dalam penelitian ini.
RESPON PERKECAMBAHAN BENIH SINTETIK TANAMAN NILAM (Pogostemon cablin Benth.) TERHADAP PEMBERIAN KONSENTRASI ALGINAT DAN NAA SINTETIK TANAMAN Evi Megasari; Nuniek Hermita; Susiyanti Susiyanti
Jurnal Agrista Vol 24, No 1 (2020): Volume 24 Nomor 1 April 2020
Publisher : Fakultas Pertanian, Universitas Syiah Kuala

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Penelitian ini dilakukan untuk mengetahui perkecambahan  benih sintetik tanaman nilam (Pogostemon cablin Benth.) dengan penambahan beberapa konsentrasi alginat dan NAA (α-Naphthaleneacetic acid). Penelitian telah dilaksanakan di Laboratorium Bioteknologi, Fakultas Pertanian, Universitas Sultan Ageng Tirtayasa pada bulan Maret - Mei 2017. Rancangan Acak Lengkap (RAL) secara faktorial digunakan dalam penelitian ini. Faktor pertama adalah konsentrasi alginat (A) dengan tiga taraf yaitu: 2% (A1), 3% (A2) dan 3% (A3). Faktor kedua adalah konsentrasi NAA (N) dengan tiga taraf yaitu 1 mg/l (N1), 2 mg/l (N2) dan 3 mg/l (N3). Dilakukan ulangan sebanyak 3 kali, sehingga diperoleh 27 satuan percobaan. Eksplan yang digunakan untuk pembuatan benih sintetik berasal dari tunas tanaman nilam hasil kultur jaringan. Hasil penelitian menunjukkan bahwa konsentrasi Alginat 4%  memberikan pengaruh yang terbaik terhadap perkecambahan benih sintetik nilam (pada parameter jumlah benih berkecambah (2,44 buah), jumlah tunas (2,67 buah) dan persentase benih berkecambah (12,78%)). Konsentrasi NAA yang diberikan tidak berpengaruh terhadap perkecambahan  benih sintetik tanaman nilam.  Demikian pula interaksi antara pemberian Alginat dan NAA tidak menunjukkan  pengaruh terhadap seluruh  peubah yang diamati. (Response germination of synthetic seeds from patchouli plants (Pogostemon Cablin Benth.) to the concentration of Alginate and NAAThis research was conducted to find out the germination of patchouli seed seeds (Pogostemon cablin Benth.) By adding some concentration of alginate and NAA (α-Naphthaleneacetic acid). The research was conducted at the Biotechnology Laboratory, Faculty of Agriculture, Sultan Ageng Tirtayasa University in March-May 2017. Completely Randomized Design (RAL) was used in this study. The first factor is the concentration of alginate (A) with three levels, namely: 2% (A1), 3% (A2) and 3% (A3). The second factor was the concentration of NAA (N) with three levels, ie 1 mg / l (N1), 2 mg / l (N2) and 3 mg / l (N3). Replication 3 times, then obtained 27 units of experiments. The explants used to make synthetic seeds are derived from patchouli shoots from tissue culture. The results showed that Alginate 4% concentration gave the best effect of germination of patchouli encapsulation.  The best response of the parameters of the number of seeds germinated (2.44 pieces), the number of shoots (2.67 pieces) and the germination percentage (12.78%)).  NAA concentration has no significant effect on synthetic seed germination. Similarly, the interaction between Alginate and NAA gave no significant effect on all observed variables
BUDIDAYA TANAMAN JAGUNG PADA LAHAN BERPENUTUP TANAH KACANGAN DISERTAI PEMUPUKAN NITROGEN B. H. Tampubolon
Jurnal Agrista Vol 7, No 3 (2003): Volume 7 Nomor 3 Desember 2003
Publisher : Fakultas Pertanian, Universitas Syiah Kuala

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A field experiment has been conducted at Kebun Percobaan IPB Darmaga Bogor, with an altitude of 250 m and the soil type is latosol. The aim of experiment was to find out the growth and the yield of corn plante on land with leguminous cover crop of 2 weeks old at the time the corn seeds being planted. Statistically, randomized block design with 2 factors was used in the experiment. The first factor was the leguminous comprised of without legumes, Calopogonium caeruleum and Centrocema pubescens. The second factor namely the application of Nitrogen : 0, 60, 120, and 180 kg N/ha. The plot size was 8 m x 5 m, and three replication. In one plot, there were 5 rows of legumes. The corn was planted in 4 rows between the legumes with 25 cm distance in the row. The result of the experiment showed that the value of the parameters growth, yield and shelled corn product in the intercropping system were higher than that planted without cover crop. The highest shelled corn (3,85 ton/ha) was attained from treatment without leguminous and without Nitrogen applications. The cover crop hindered from growth of seeds, and dry weight of weeds obtained from the plot with cover crop was than that obtained from without cover crop.
PENULARAN PENYAKIT BUDOK SECARA MEKANIK DAN PENYAMBUNGAN PADA TANAMAN NILAM (Pogostemon cablin Benth) Alfizar Alfizar
Jurnal Agrista Vol 7, No 3 (2003): Volume 7 Nomor 3 Desember 2003
Publisher : Fakultas Pertanian, Universitas Syiah Kuala

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Transmiss.ion of budok disease by mechanic and grafting methods on patchouli (Pogoslemon cablin Benth). Budok is the most serious disease on patchouli in Nanggroe Acch Darussalam Province and considered as a major constraint for patchouli production. The disease is supposed caused by a virus or Micoplasma like organism (MLO). Transmission of budok disease may occur naturally in field. but the mechanism of transmission has not yet been known. The research aimed at investigate wether the budok disease could be transmitted by mechanic sap and grafting method. The results showed that budok disease was transmitted by both method tested. Inoculation time of mechanical transmission by mechanic sap inoculation was faster than grafting method.
ASPEK FISIKA DAN MEKANIKA TANAH ASOSIASI REGOSOL BANJARWANGI KABUPATEN GARUT Mustafril Mustafril
Jurnal Agrista Vol 7, No 3 (2003): Volume 7 Nomor 3 Desember 2003
Publisher : Fakultas Pertanian, Universitas Syiah Kuala

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Development of terraces which is applied for soil and water conservation often experiences failure with occurance of sliding, like several agricultural lands in sub district of Banjarwangi, Garut Regency. Slide at farm of bench terrace is influenced by soil physics and mechanics properties. For that purpose it requires to conduct research of soil and mechanics properties in the area of gristle slide. Result of inspection is physical properties of Regosol Association soil within two condition, that is undisturbed and compacted condition. The result shows as follows the average water content is 47.82 % and 28.83 % respectively. The average porosity is 68.30 % and 53.54 % and the average permeability is 5.89 mm/jam and 0.69 mm/jam, respectively. Soil texture is silt loam. The result of proctor test that is maximum densities is 1.40 t/m 3 and the optimum water content is 28.83 %. Inspection of soil mechanic properties with triaxial test shows that at the mean density of 1.44 t/m 3. The effective cohesion is on average 0.15 kgf/cm2 and the internal friction angle average is 20.3 for natural condition. If soil is compacted with optimum water content, it shows improvement on strength with the average density is 1.732 t/m3, the average effective cohesion is 0.722 kgf/cm2, and the average internal friction angle is 28. 48 . The maximum shear strength of soil increases if optimum water content applied.
Identification and Analysis of Landslide Characteristics Out of the Agriculture in Garut Regency Subhan Subhan; Murtilaksono K; Barus B
Jurnal Agrista Vol 24, No 1 (2020): Volume 24 Nomor 1 April 2020
Publisher : Fakultas Pertanian, Universitas Syiah Kuala

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Based on the data of earthquake disaster events in Indonesia for the last 12 years then West Java Province was most often experienced landslide disaster. Land movement map of Garut Regency issued by Directorate of Volcanology and Geological Hazard Mitigation (DVMG), indicated Garut included in the category of vulnerability zone of high ground movement, among others: District Banjarwangi, Singajaya and Peundeuy. This study aimed to identify and analyzed the characteristics of landslides in Garut regency, especially in three districts. The first phase of this study conducted a literature study on various factors causing landslides, followed by making a list of fields as a guide in the field. The identification of landslides was done descriptively. Various factors suspected to be the cause of the landslide were identified and analyzed. Based on the results of observation for 14 months at 32 landslide point that occurred in the research area, there were 2 landslide characteristic encountered, namely 1. Soil scrolling (30 cases or 94%) and 2. Decreased / subsidence (2 cases or 6%). The highest landslide was found on paddy fields as much as 25 dots, followed by mixed gardens (talun) as much as 4 points, in the settlement / infrastructure found 2 points and one season plantation garden.
INTERAKSI ANTARA VARIASI KONSENTRASI HORMON BAP (6-benzylaminopurine) DAN INTENSITAS PENYINARAN MATAHARI PADA PERTUMBUHAN BIJI SERDANG (Livistona chinensis (Jack.) R. Br. Ex Martelii) Nurul Sumiasri; Dody Priadi
Jurnal Agrista Vol 7, No 3 (2003): Volume 7 Nomor 3 Desember 2003
Publisher : Fakultas Pertanian, Universitas Syiah Kuala

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A Study of interaction between hormone BAP dosages (0; 2; 3 and 4 mg/l) and light intensities (50; 60 and 70%) on growth of ‘sedang’ (L. chinensis) seeds was carried out at Puspiptek Serpong Botanic Garden. In this study the single treatment  (light intensity) showed significantly different (5%). However, on the interaction treatments were not significant. Although the highest of all parameters observed (growth percentage, plant height, total leaves and leaf length) were showed by combination treatments between 3 mg/l BAP and 70% light intensity, while the lowest were showed by control.
THE IMPORTANT OF VISUAL AND OLFACTORY FROM HOST IN HOST RECOGNITION AND ACCEPTANCE BY PARASITOID Brachymeria lasus Husni Husni
Jurnal Agrista Vol 7, No 3 (2003): Volume 7 Nomor 3 Desember 2003
Publisher : Fakultas Pertanian, Universitas Syiah Kuala

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Pentingnya isyarat visual dan olfactory dari inang di dalam proses pengenalan dan penerimaan inang oleh parasitoid B. lasus telah diuji di Laboratorium. Hasil penelitian menunjukkan bahwa B. lasus betina mampu menemukan inang dengan menggunakan isyarat visual maupun isyarat olfactory. Akan tetapi, kedua isyarat tersebut digunakan secara kombinasi (penggunaan inang normal) maka foraging time menjadi lebih efisien. Apabila B. lasus betina diekspos kepada inang normal, maka betina tersebut mampu menemukan inang dalam waktu hanya 44 sekon. Akan tetapi ketika salah satu isyarat visual atau olfactory ditiadakan (penggunaan inang buatan), maka kemampuan B. lasus betina dalam mencari inang menjadi rendah. Dari hasil ini mengindikasikan bahwa kombinasi antara isyarat visual dan ofactory sangat penting bagi B. lasus betina dalam menemukan inang.

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