Sri Anjar Lasmini
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TOKSISITAS SENYAWA BIOAKTIF TUMBUHAN “SIDONDO” (Vitex negundo L.) PADA Spodoptera exigua Hubner dan Plutella xylostella Linnaeus

AGROLAND Vol 15, No 4 (2008)
Publisher : AGROLAND

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Abstract

The objectives of this study were to evaluate bioactive compound contents of the ”Sidondo” plant (Vitex negundo L.) especially those compound that are potentially used as botanical pesticide and to test the plant extract influence on tested Spodoptera exigua and Plutella xylostella larvae mortality and toxicity. This study was conducted in Plant Protection and Biotecnology Laboratories, Faculty of Agriculture, Tadulako University from March to October 2008. Results of the study indicated that     crude extract of the V. negundo could kill both S. exigua and P. xylostella larvae. The highest mortality rate for S. exigua (32%) was found when the plant was extracted with ethanol and for P. xylostella (27%) was seen with methanol extraction. The effective extract concentration was 0.3% for S. exigua and 0.2% for                               P. xylostella.  The extract sub-lethal concentration (LC50) was 0.49% for S. exigua and 0.42% for P. xylostella.  The extract of V.  negundo contained Saponin which could be used as a botanical insecticide active ingredient

IDENTIFIKASI CENDAWAN ENTOMOPATOGEN LOKAL DAN TINGKAT PATOGENITASNYA TERHADAP HAMA WERENG HIJAU (Nephotettix virescens Distant.) VEKTOR VIRUS TUNGRO PADA TANAMAN PADI SAWAH DI KABUPATEN DONGGALA

AGROLAND Vol 17, No 3 (2010)
Publisher : AGROLAND

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Abstract

The objective of this research was to identify entomopathogenic fungi associated with green leafhopper (Nephotetix virescens) and to determine its virulence toward N. viresnes mortality. The indicators of pathogenicity were symptoms, time of symptom appeared, and mortality of green leafhopper after inoculation of the entomopathogenic fungi. The research was conducted in three phases. The first phase was collecting green leafhopper infected by entomopathogenic fungi in the field. The second phase was isolation, inoculation, and re-isolation of entomopathogenic fungi from the infected green leafhopper (wereng). The third was pathogenicity assay conducted in the Laboratory of Plant Pest and Disease, Faculty of Agriculture, Tadulako University. The research was conducted for four months from February to May 2010.  Five isolates of entomopathogenic fungi were collected in Donggala Regency: Metharizium sp., Asperigillus sp., Beauveria sp., Cladosporium sp. and Fusarium sp. Two isolates were found potential as entomopathogenic             fungi: Metarhizium sp. and Beauveria sp. Mortality of nimpha green leafhopper (wereng hijau) caused by both fungi were 80.75%, and 80.25% respectively.

RESPON PERTUMBUHAN DAN HASIL JAGUNG MANIS (Zea mays saccharata) PADA BERBAGAI WAKTU PEMBERIAN PUPUK NITROGEN DAN KETEBALAN MULSA JERAMI

AGROLAND Vol 17, No 3 (2010)
Publisher : AGROLAND

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Abstract

This research was conducted on February to May 2009 in Jonooge village, Biromaru sub district Sigi regency Central Sulawesi province.  A 3x3 factorial experiment in a randomized block design was used. The first factor was nitrogen fertilizer 200 kg N/ha applied at different times and rates: single application at sowing (W1), 1/3 rate at sowing and 2/3 rate at 15 d after sowing (W2), 1/3 rate at sowing and 2/3 at 30 d after sowing (W3), and 1/3 rate at sowing and 2/3 at 45 d after sowing (W4).  The second factor was thickness of mulch:  3 cm (J1), 5 cm (J2) and 7 cm (J3).  The research results showed that there was no interaction effect between nitrogen fertilizer applications and mulch thickness.  Better plant height (164.78 cm), weight of 10 corncobs (2.43 kg), girth (7.70 cm), number of kernel rows, and corncob length (18.3 cm) was found in treatment W3 than the other nitrogen fertilizer treatments. Mulch added at 7 cm thickness resulted in larger sugar content (26.55%), plant height (166.94 cm), and weight of 10 corncobs than the other mulch treatment

PENGARUH KONSENTRASI ATONIK TERHADAP PERTUMBUHAN DAN HASIL BAWANG MERAH (ALLIUM CEPA VAR. AGGREGATUM L.) VARIETAS LEMBAH PALU

AGROTEKBIS Vol 6, No 4 (2018)
Publisher : AGROTEKBIS

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Abstract

The study aims to determine the concentration of hormones grown atonic to the growth and yield  varieties of Palu Valley. The research was conducted in Bulupontu Jaya Sub-Village, Sidera Village, Biromaru Sub-district, Sigi Regency, Central Sulawesi Province. This study used Randomized Block Design consisting of 4 treatment levels: A1 = 0.5 ml / L water, A2 = 1 ml / L water, A3 = 1.5 ml / L water, and A4 = 2, 0 ml / L water.All treatments were repeated 3 (three) times, so there were 4 treatments each time 3 replicates = 12 experimental units.The results showed that the atonic concentration of 2.0 ml / L water had significant effect on the growth and the best onion crop yields indicated by the average plant height of 23.17 cm,average number of leaves 24.40 strands, number of tiller 5.67 fruit, total dry weight of crop 1.70 gram, number of tubers per hump 5.40 fruit, tuber weight per hill 25.48 gram, weight per bulb 3.35 gram and tuber yield per hectare 3.77 ton.ha-1.

TOKSISITAS SENYAWA BIOAKTIF TUMBUHAN “SIDONDO” (Vitex negundo L.) PADA Spodoptera exigua Hubner dan Plutella xylostella Linnaeus

Agroland Vol 15, No 4 (2008)
Publisher : Agroland

Show Abstract | Original Source | Check in Google Scholar | Full PDF (297.501 KB)

Abstract

The objectives of this study were to evaluate bioactive compound contents of the ”Sidondo” plant (Vitex negundo L.) especially those compound that are potentially used as botanical pesticide and to test the plant extract influence on tested Spodoptera exigua and Plutella xylostella larvae mortality and toxicity. This study was conducted in Plant Protection and Biotecnology Laboratories, Faculty of Agriculture, Tadulako University from March to October 2008. Results of the study indicated that     crude extract of the V. negundo could kill both S. exigua and P. xylostella larvae. The highest mortality rate for S. exigua (32%) was found when the plant was extracted with ethanol and for P. xylostella (27%) was seen with methanol extraction. The effective extract concentration was 0.3% for S. exigua and 0.2% for                               P. xylostella.  The extract sub-lethal concentration (LC50) was 0.49% for S. exigua and 0.42% for P. xylostella.  The extract of V.  negundo contained Saponin which could be used as a botanical insecticide active ingredient

PERTUMBUHAN STEK TANAMAN LADA (Piper nigrum Linn) PADA KOMPOSISI MEDIA TUMBUH DAN DOSIS AIR KELAPA YANG BERBEDA

AGROTEKBIS Vol 5, No 4 (2017)
Publisher : AGROTEKBIS

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Abstract

This experiment aimed to determine the best growing media composition and coconut water in stimulating the growth of pepper plant cuttings. It used a two factorial randomized block design. The first factor was various proportions of media compositions of manure, sand and top soil i.e. 1:4:12; 1:4:6; and 1: 4:4. The second factor was different rates of coconut water i.e. A0           (no coconut water added), A1 (40 cc), A2 (80 cc), and A3 (120 cc). There were 12 combination treatments and each was replicated three times with each treatment consisting of three plants. Parameter observed included shoot length, leaf number, leaf area size, root length, and fresh root weight. The research results showed that there was no significant interaction effect between         the media composition and the coconut water on the shoot length at 45 days after planting (DAP), 60 DAP, and 90 DAP but it was significant at 75 DAP. The interaction effect was also significant on the leaf number at 60 DAP. Only the coconut water had significant effect on the total leaf area size, the root length, and the fresh weight. The stimulation of the pepper cutting growth was best under the 120 cc coconut water treatment per week and the sand, manure and top soil proportion of 1:4:4 treatment. Key Words : Coconut water, pepper cuttings, and planting media

Regional Partnership Program in Developing of Potential Agricultural Resource Based on Integrated Agricultural Technology in Buol Distric

Agrokreatif Jurnal Ilmiah Pengabdian kepada Masyarakat Vol 4, No 2 (2018): Agrokreatif Jurnal Ilmiah Pengabdian Kepada Masyarakat
Publisher : Institut Pertanian Bogor

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Abstract

Lakea Sub-district, Buol District has a wealth of natural resources (SDA) potential in the form of large and fertile plains area that can be developed into agricultural land for food crops and horticulture, areas with hilly topography can be developed various types of plantation commodities, forest resources that can be cultivated MPTS and marine potential. To optimize the potential of natural resources is needed integrated agricultural technology that can be applied by the community. Regional partnership program aims to assist the community in exploiting the potential of natural resources owned by kindly and wisely through integrated agricultural technology innovation to improve their welfare. PKW is implemented in two villages in Lakea Sub-District, Lakea I and Ngune Village. The methods used in the implementation of the program include: training, plot demonstration technology, guidance, and community assistance. The results of the program implementation showed that the adoption of technology was good enough from the target community group which is showed by the transfer of technology in the development of SRI rice cultivation with legowo row planting system, the development and entrepreneurship of local-made production facilities include bioinsecticide development Beauveria bassiana, Trichoderma sp biofungicide, liquids organic fertilizer and granules, development of PKW production facilities, and development of forage grazing garden with Panicum sarmentosum grass cultivation. The technology assembly is as the result of a suitable PKW team study to be developed in the Lakea District of Buol Regency in utilizing and developing the potential of natural resources in the program target location. Results of demonstration plot of rice cultivation of SRI with legowo 2:1 row planting system resulted in rice production of 4.7 t ha-1 higher than the conventional were 3.5 t ha-1.

PERTUMBUHAN DAN HASIL BAWANG MERAH LEMBAH PALU PADA BERBAGAI DOSIS PUPUK ORGANIK CAIR BIOKULTUR URIN SAPI

Agroland Vol 24, No 3 (2017)
Publisher : Agroland

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Abstract

Shallot growth is strongly influenced by climatic factors and available soil nutrients. By doing appropriate fertilization, the plants will get the nutrients needed. This study aimed to determine the effect of cow urine bioculture (liquid organic fertilizer) rates on shallot growth and yield. The research was conducted in Oloboju village, Sigi Biromaru sub district, Sigi Regency, Central Sulawesi Province from March to June 2017. The study used a randomized completely design which consisted of with no application of bioculture liquid fertilizer (B0), 250 L ha-1bioculture liquid (B1), 500 L ha-1bioculture liquid (B2) and 750 Lha-1bioculture liquid (B3). Each treatment was replicated four times, so there were 16 experimental units. Each unit of experiment consisted of 260 plants so that a total of 4160 plants were grown. The results showed that the bioculture liquid fertilizer applied at the rate of 750 L ha-1 resulted in significantly higher plant height, bulb diameter, bulb water content, number of tillers per hill, fresh weight of bulb,  bulb bulk weight, dry weight of plant and bulb yield per hectare compared to the other treatments. Adding the bioculture liquid fertilizer at the rate of  750 L ha-1  produced  shallot bulb of  9.27 ton ha-1.

KKN-PPM PENERAPAN SISTEM USAHA TANI TERPADU DAN BERKELANJUTAN UNTUK PENINGKATAN PENDAPATAN MASYARAKAT BERBASIS ZERO WASTE FARMING SYSTEM

Jurnal Abditani Vol 1 (2018): Oktober
Publisher : FAKULTAS PERTANIAN UNIVERSITAS ALKHAIRAAT

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Abstract

Sistem usaha tani terpadu adalah suatu sistem yang menggabungkan kegiatan pertanian, peternakan, perikanan, kehutanan dan ilmu lain yang terkait dengan pertanian dalam satu lahan, sehingga diharapkan dapat menjadi solusi alternatif peningkatan produktivitas lahan, konservasi lingkungan serta pengembangan desa secara terpadu,sedangkan sistem pertanian berkelanjutan ditujukan untuk mengurangi kerusakan lingkungan, mempertahankan produktivitas pertanian, meningkatkan pendapatan petani dan meningkatkan stabilitas dan kualitas kehidupan masyarakat di pedesaan. Indikator tercapainya sistem pertanian berkelanjutan adalah lingkungan lestari, ekonomi meningkat (sejahtera), dan secara sosial diterima oleh masyarakat petani. Dalam praktek sistem pertanian terpadu dan berkelanjutan adalah pengintegrasian antara tanaman dan ternak.Program KKN-PPM bertujuan untuk membantu masyarakat dalam mengembangkan sistem pertanian terpadu dan berkelanjutan melalui sistem integrasi tanaman dan ternak berbasis zero waste farming systemsebagai salah satu upaya untuk meningkatkan efisiensi lahan dan sumberdaya lainnya dalam  rangka meningkatkan kesejahteraan masyarakat.Target khusus yang ingin dicapai adalah: meningkatkan pengetahuan dan keterampilan masyarakat dalam memanfaatkan sumber daya lahan secara optimal agar pendapatan masyarakat meningkat. Untuk mencapai tujuan dan target  tersebut,akan dilakukan pemberdayaan masyarakatdengan fokus kegiatan meliputi: (a) sosialisasi  program KKN-PPM, (b) penyuluhansistem usaha tani terpadu integrasi tanaman dan ternak, (c) pelatihan teknologi usaha pertanian integrasi tanaman dan ternak berbasis zero waste farming system serta (f) pendampingan dan pemberdayaan bagi kelompok sasaran program. Hasil pelaksanaan program KKN-PPMTahun 2018yang diikuti sebanyak 30 orang mahasiswayang ditempatkan di tiga desa, yaitu Desa Wani I, Desa Wani Lumbumpetigo dan Desa Wanit III  telah melaksanaan program yang meliputi program wajib yaitu sistem pertanian terpadu dan berkelanjutan melalui sistem integrasi tanaman dan ternak berbasis zero waste farming system serta program pilihan berupa bina lingkungan, kegiatan sosial, oleh raga, seni, dan budaya. Program integrasi tanaman dan ternak berbasis zero waste farming system telah mengembangkan pupuk organik dan penanaman hijauan pakan serta budidaya tanaman sayuran melalui konsep RPL

PENGARUH KOMPOSISI DEDAK DAN TEPUNG JAGUNG PADA BAHAN MEDIA SERBUK GERGAJI TERHADAP PERTUMBUHAN DAN HASIL JAMUR TIRAM PUTIH (Pleurotus ostreatus)

AGROTEKBIS Vol 6, No 3 (2018)
Publisher : AGROTEKBIS

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Abstract

The research implemented in Mpanau Village, Sigi Biromaru, Sigi Regency. The study began from March to May 2016. The purpose of this research is to know the effect dosage of bran and corn flour on sawdust media to growth and yield of white oyster mushroom (Pleurotus ostreatus). The benefits of this research isa source of basic scientific provides information the growth and yield of white oyster mushrooms to the dosage of bran and corn flour as source of nutritious white oyster mushroom plant, In addition it is expected to be a reference for future researchers about mushrooms white oyster. The method of this study was arranged in the design of this the study using Completely Randomized Design (RAL) with 7 treatments as follows: D0 =  media sawdust (100%), as control, D1 = sawdust (80%), and bran (20%), D2 = mixture of sawdust media (75%), and bran (25%), D3 = mixed sawdust (70%), and bran (30%), D4 = mixture of sawdust (80%), and corn powder (20%), D5 = mixture of sawdust media (75%) and corn powder (25%), D6 = mixed sawdust (70%), and corn power (30%). The results of this study showed that the addition of dosage of bran and corn powder to each treatment of sawdust media had a very significant effect on all parameters of observation that is on the first observation parameter growing mycelium, the number of white oyster mushroom body, white fruits oyster mushroom cap dry weight of white oyster mushrooms. Treatment with 30% dosage of bran dose gave the best result to all observation parameters except on observation parameter of white oyster mushroom diameter. On the average parameter of white oyster mushroom fruits diameter the best treatment was treatment (D1) with dosage 20% of bran. Treatment by using a dosage of corn powder gives a low yield on all observation parameter. Keywords: Oyster mushrooms, Sawdust