scholarly journals Sinergisme Campuran Herbisida Berbahan Aktif IPA Glifosat 240 g/L dan 2,4 D AminA 120 g/L dalam Mengendalikan Beberapa Jenis Gulma

Agrikultura ◽  
2020 ◽  
Vol 30 (3) ◽  
pp. 134
Author(s):  
Denny Kurniadie ◽  
Dita Agustin Purbayanti ◽  
Yayan Sumekar
Keyword(s):  
Linear Regression ◽  
Active Ingredients ◽  
Ageratum Conyzoides ◽  
Expectation Value ◽  
Green House ◽  
Herbicide Mixture ◽  
Synedrella Nodiflora

ABSTRACT Synergism of herbicide mixture of Glyphosate IPA 240 g/L and 2,4 D Amines 120 g/L in controlling various types of weeds Mixture of herbicides with two or more types of active ingredients will show an interaction of the ingredients. These interactions could be synergistic, additive, or antagonistic. The purpose of this research was to investigate the herbicide mixture of Glyphosate IPA 240 g/L and 2,4 D Amines 120 g/L to control various types of broadleaf weeds and grass weeds. The research was conducted from March until May 2019, at the green house of the Faculty of Agriculture, Universitas Padjadjaran at Jatinangor Sumedang. The treatment consisted of three types of herbicides with different dosages, namely mixture of glyphosate IPA 240 g/L and 2.4 D Amine 120 g/L (2,880, 1,440, 720, 360, 180, and 0 g/ha), glyphosate IPA 240 g/L (1,920, 960, 480, 240, 120, and 0 g/ha), and 2,4 D Amine 120 g/L (960, 480, 240, 120, 60, and 0 g/ha) with five replications. The target weeds were Ageratum conyzoides, Synedrella nodiflora, Borreria alata, Ischaemun timorense, and Otochloa nodosa.  Data were analyzed using analysis of linear regression and MSM method to determine LD95 treatment and LD95 expectation. The result showed that mixture of herbicides glyphosate IPA and 2.4 D Amine had LD95 treatment value (3992,91 g/ha) and smaller than LD95 expectation value (4180,81 g/ha), so the herbicide mixture was synergistic. Keywords: Mixed herbicide, IPA Glyphosate, 2,4 D Amine, LD95, MSM method ABSTRAK Herbisida campuran dengan dua atau lebih jenis bahan aktif akan menunjukkan interaksi satu bahan dengan bahan yang lain. Interaksi tersebut dapat bersifat sinergis, aditif dan antagonis. Tujuan dari penelitian ini yaitu untuk mengetahui interaksi herbisida campuran berbahan aktif IPA Glifosat 240 g/L dan 2,4 Amina 120 g/L terhadap pengendalian gulma berdaun lebar dan gulma rumput. Penelitian dilaksanakan pada bulan Maret sampai Mei 2019, di rumah kaca Fakultas Pertanian Universitas Padjadjaran, Ciparanje, Jatinangor. Perlakuan terdiri dari tiga jenis herbisida dengan dosis yang berbeda yaitu herbisida campuran IPA Glifosat 240 g/L dan 2,4 D Amina 120 g/L (2.880, 1.440, 720, 360, 180, 0 g/ha), herbisida tunggal IPA Glifosat 240 g/L (1.920, 960, 480, 240, 120, 0 g/ha), dan herbisida tunggal 2,4 D Amina 120 g/L (960, 480, 240, 120, 60, 0 g/ha) dengan lima ulangan. Gulma sasaran pada penelitian ini di antaranya yaitu Ageratum conyzoides, Synedrella nodiflora, Borreria alata, Ischaemun timorense, dan Otochloa nodosa. Analisis data menggunakan analisis regresi linear dan metode MSM untuk menentukan LD95 perlakuan dan LD95 harapan. Hasil penelitian menunjukkan bahwa pencampuran herbisida berbahan aktif IPA Glifosat dan 2,4 D Amina memiliki nilai LD95 perlakuan (3992,91 g/ha) lebih kecil dari nilai LD95 harapan (4180,81 g/ha) sehingga campuran herbisida tersebut bersifat sinergis. Kata Kunci: Herbisida campuran, IPA Glifosat, 2,4 D Amina, LD95, Metode MSM

scholarly journals Uji Efektivitas Campuran Herbisida Berbahan Aktif Atrazin dan Topramezon terhadap Beberapa Jenis Gulma

2021 ◽  
Vol 20 (2) ◽  
pp. 93
Author(s):  
Dad Resiworo Jekti Sembodo ◽  
Nana Ratna Wati
Keyword(s):  
Survival Model ◽  
Active Ingredients ◽  
Ageratum Conyzoides ◽  
Eleusine Indica ◽  
Randomized Design ◽  
Herbicide Mixture ◽  
Herbicide Atrazine ◽  
Completely Randomized Design ◽  
Ld50 Value ◽  
Synedrella Nodiflora

The purpose of this study was to determine the effectiveness of mixing herbicides with the active ingredients atrazine and topramezone in controlling weeds and to determine the nature of the mixture of the two active ingredients. This research was conducted in a plastic house in Natar District, South Lampung Regency from October 2020 - January 2021. The study was arranged in a Completely Randomized Design (CRD). The treatments consisted of three types of herbicides with six dosage levels of the active ingredients, namely the single herbicide Atrazine 300 g/l (0, 37.5, 75, 150, 300, and 600 g ai ha-1), Topramezon 10 g/l (0. 1.25 , 2.5, 5, 10, and 20 g ai ha-1), and the herbicide mixture of Atrazine 300 g/l + Topramezone 10 g/l (0. 38.75, 77.50, 155, 310, and 620 g ai ha-1) , and repeated 6 times. The target weeds included broadleaf weeds (Ageratum conyzoides and Synedrella nodiflora), grass groups (Digitaria ciliaris, Echinochloa colonum, and Eleusine indica), and the puzzle group (Cyperus iria). The herbicides atrazine and topramezone have different ways of working so that the analytical method used is the Multiplicative Survival Model (MSM) method. The results showed that mixing the herbicide Atrazine 300 g/l + Topramezon 10 g/l had an expected LD50 value of 46.28 g ai ha-1 and a treatment LD50 of 27.22 g ai ha-1 with a co-toxicity value of 1.7 (Co-toxicity > 1) so that it is synergistic.Key words: Atrazin, Topramezon, mixing herbicide, Multiplicative Survival Model, weed, LD50

scholarly journals Sifat Campuran Herbisida Berbahan Aktif Bentazon dan MCPA Terhadap Gulma Daun Lebar, Teki dan Rumput

2021 ◽  
Vol 23 (1) ◽  
pp. 1
Author(s):  
Uum Umiyati ◽  
Dedi Widayat ◽  
Dani Riswandi ◽  
Reza Amalia
Keyword(s):  
Regression Analysis ◽  
Linear Regression ◽  
Weed Control ◽  
Linear Regression Analysis ◽  
Active Ingredients ◽  
Mixed Characteristic ◽  
Herbicide Mixture ◽  
Dose Levels ◽  
Weed Resistance ◽  
Area Data

<p>Weed control using a single herbicide with same active ingredients can add the risk of weed resistance. Using mixed herbicides can increase the spectrum of weeds controlled, and inhibit weed resistance. Herbicide mixture with two or more types of active ingredients will show the interactions between one and another ingredient. These interactions could be synergistic, antagonistic, and additive. The research was to determine the response of mixed herbicide Bentazon, MCPA 460 g. L⁻¹ and their mixed characteristic. This experiment was conducted from June until August 2019 in the greenhouse at the Faculty of Agriculture, Universitas Padjadjaran. The treatment consisted of three types of herbicides with six dose levels, namely a single herbicide of Bentazon 400 g. L⁻¹ and MCPA 60 g. L⁻¹ (4; 2; 1; 0.5; 0.25; 0 L.ha⁻¹), a mixed herbicide Bentazon MCPA 460 g.L⁻¹ (5; 2.5; 1.25; 0.625; 0.3215; 0 L.ha⁻¹) with four replications. The target weeds tested were <em>Spenochlea zeylanica</em>, <em>Ludwigia hyssopifolia</em>, <em>Fimbristylis miliacea</em>, and <em>Cyperus iria</em> was taken from the Ciparay area. Data were analysed by linear regression analysis and multiplicative survival model (MSM) method to determine the LD50 treatment and expectation. The result showed that compound herbicides of Bentazon and MCPA LD50 treatment (0,3857 g.ha⁻¹) had smaller value than LD50 expectation (0,6943 g.ha⁻¹) with a ecotoxicity value of 1.8 (&gt; 1), so that the herbicide mixture was synergistic.</p>

Pengaruh Campuran Herbisida Atrazin 500 g/l dan Mesotrion 50 g/l Terhadap Pertumbuhan Beberapa Jenis Gulma Serta Hasil Jagung (Zea mays L.)

2019 ◽  
Vol 2 (1) ◽  
pp. 9
Author(s):  
Uum Umiyati ◽  
Dedi Widayat ◽  
Denny Kurniadie ◽  
Reza Yudha Fadillah ◽  
Deden Deden
Keyword(s):  
Zea Mays ◽  
Zea Mays L ◽  
Ageratum Conyzoides ◽  
Synedrella Nodiflora

Gulma sebagai kompetitor bagi tanaman jagung dalam memanfaatkan unsur hara, air, cahaya dan ruang tumbuh.  Pengendalian gulma menggunakan herbisida sangat diminati oleh petani karena lebih efektif dan efisien dalam mengendalikan gulma. Herbisida yang digunakan untuk mengendalikan gulma dipertanaman jagung adalah herbisida campuran Atrazin 500 g/l + Mesotrion 50 g/l. Penelitian ini bertujuan untuk mengetahui pengaruh herbisida campuran Atrazin 500 g/l + Mesotrion 50 g/l terhadap pertumbuhan gulma pada tanaman jagung. Penelitian dilakukan dari bulan September 2018 sampai Januari 2019 di kebun percobaan Ciparanje Fakultas Pertanian, Universitas Padjadjaran, Jatinangor, Kabupaten Sumedang, Jawa Barat. Rancangan yang digunakan pada percobaan ini Rancangan Acak Kelompok (RAK) dengan 6 (enam) perlakuan dan 4 (empat) ulangan. Perlakuan yang dicoba adalah A). Herbisida campuran Atrazin 500 g/l dan Mesotrion 50 g/l dosis 1,50 l/ha, B). Dosis 2,0 l/ha, C). Dosis 2,50 l/ha, D). Dosis 3,0 l/ha, E). Penyiangan manual, F). Kontrol. Perbedaan antar perlakuan diuji dengan menggunakan uji F, sedangkan untuk menguji nilai rata-rata perlakuan digunakan Uji Jarak Berganda Duncan taraf nyata 5%. Herbisida campuran Atrazin 500 g/l + Mesotrion 50 g/l dengan dosis 1,5 l/ha - 3,0 l/ha  mampu menekan pertumbuhan gulma  Ageratum conyzoides; Richardia brasiliensis; Synedrella nodiflora dan gulma lainnya.serta tidak menimbulkan keracunan terhadap tanaman jagung. Pada Dosis 3,0 l/ha hasil tanaman jagung tertinggi sebesar 152,52 gram /petak. Kata Kunci : herbisida, jagung, gulma

scholarly journals GLANDULAR TRICHOME IN THE ASTERACEAE FAMILY

2021 ◽  
Vol 7 (2) ◽  
pp. 164-171
Author(s):  
Wina Dyah Puspita Sari ◽  
Cicik Suriani ◽  
Dina Handayani
Keyword(s):  
Morphological Structure ◽  
Glandular Trichome ◽  
Ageratum Conyzoides ◽  
Bidens Pilosa ◽  
Tridax Procumbens ◽  
Synedrella Nodiflora ◽  
The Tropics ◽  
Diverse Plant Species ◽  
Leaf Trichome ◽  
Asteraceae Family

The Asteraceae is a diverse plant species and widely distributed, especially in the tropics and subtropics, consisting of 1,600 - 1,700 genera which include 24,000 - 30,000  species. Asteraceae has characteristics of cup flowers and brackets that are not owned by other plants. The objective of this study was to determine the morphological structure of plants and escpecially the leaf glandular trichome in several species of Asteraceae. The research method used was a descriptive method, to describe and interpret the shape, structure and distribution of leaf trichome in the Asteraceae family. This study used eight species of the Asteraceae family, namely Elephantopus mollis, Bidens pilosa, Tithonia deversifolia, Tridax procumbens, Synedrella nodiflora, Eclipta prostrate, Sphagneticola trilobata and Ageratum conyzoides. The observation results of trichomes at 8 species by Scanning Electrone Microscope (SEM) was obtained varied forms of trichomes, both in shape and size. From the research, it was obtained that the forms of multicellular glandular trichome with various shapes, ranging in size from 50.6 µm - 831.9 µm.    

scholarly journals KEPARAHAN PENYAKIT ANTRAKNOSA PADA CABAI (Capsicum annuum L) DAN BERBAGAI JENIS GULMA

2013 ◽  
Vol 1 (1) ◽  
Author(s):  
Kristina Hayu Herwidyarti ◽  
Suskandini Ratih ◽  
Dad Resiworo Jekti Sembodo
Keyword(s):  
Capsicum Annuum ◽  
Ageratum Conyzoides ◽  
Colletotrichum Capsici ◽  
Capsicum Annuum L ◽  
Paspalum Distichum ◽  
Synedrella Nodiflora ◽  
Cleome Rutidosperma

Penelitian ini dilaksanakan di Laboratorium Penyakit Tumbuhan Fakultas Pertanian Universitas Lampung dan di lahan cabai di Kecamatan Kemiling, Kelurahan Langkapura Bandar Lampung pada bulan Juni hingga Agustus 2012. Penelitian ini disusun dalam rancangan acak kelompok (RAK) dengan 6 perlakuan dan 4 ulangan. Perlakuan terdiri dari (a) cabai, (b) Cleome rutidosperma, (c) Cyperus kyllingia, (d) Synedrella nodiflora, (e) Paspalum distichum, dan (f) Ageratum conyzoides yang diinokulasi dengan jamur Colletotrichum capsici pada saat tingginya berkisar antara 9-12 cm. Hasil penelitian menunjukkan bahwa; (1) Keparahan penyakit antraknosa berbeda-beda, pada cabai 0,3% hingga 44,0% %, Cleome rutidosperma sebesar 7,5% hingga 51,0%, Cyperus kyllingia dan Paspalum distichum 0%, Synedrella nodiflora 9,3% hingga 47,0%. dan Ageratum conyzoides 12,8% menjadi 9,1%, (2) Masa inkubasi jamur Colletotrichum capsici berbeda-beda yaitu tersingkat pada gulma Cyperus kyllingia (0 hari), dan masa inkubasi terpanjang pada dan Paspalum conjugatum (27 hari). Pertumbuhan tinggi dan persentase jumlah daun tanaman cabai dan gulma yang diinokulasi dengan Colletotrichum capsici berbeda-beda dari minggu ke- 1 hingga minggu ke- 4. Pertumbuhan paling tinggi terjadi pada gulma Ageratum conyzoides sedangkan pertumbuhan terendah terjadi pada gulma Cleome rutidosperma. Persentase jumlah daun sakit paling besar adalah pada cabai dan Persentase jumlah daun paling kecil pada Cyperus kyllingia.

JENIS-JENIS GULMA YANG TERDAPAT DI PERKEBUNAN KOPI DI DESA TERAS TERUNJAM KABUPATEN MUKOMUKO

2020 ◽  
Vol 1 (2) ◽  
Author(s):  
Andriyani Andriyani
Keyword(s):  
Centella Asiatica ◽  
Research Field ◽  
Imperata Cylindrica ◽  
Cyperus Rotundus ◽  
Ageratum Conyzoides ◽  
Mikania Micrantha ◽  
Coffee Plantations ◽  
Phyllanthus Urinaria ◽  
The Family ◽  
Synedrella Nodiflora

This study aims to determine types of weed existing on coffee plantations in Teras TerunjamVillage of Mukomuko. This research has been conducted from 8 February to 8 March 2018 in Teras Terunjam Village. Sampling is done by using the cruising sampling method on coffee plantation area of 2 ha, and all of them are made as research field. The results showed that the existing weeds in coffee plantations are consisted of 16 species and 12 families. The study found that the family of Amaranthaceae has 1 species (Amaranthus spinosus L), family of Apiaceae 1 species (Centella asiatica), the family of Asteraceae 3 species (Ageratum conyzoides, Mikania micrantha, and Synedrella nodiflora L.), the family of Euphorbiaceae 1 species (Euphorbia hirta L.), the family of Fabaceae 1 species (Mimosa pudica), the family of Cyperaceae 1 species (Cyperus rotundus), the family of Melastomataceae 2 species (Clidemia hirta and Melastoma affine), the family of Phyllanthaceae 1 species (Phyllanthus urinaria), family of Poaceae 2 species (Imperata cylindrica, and Lophatherum gracile ), Rubiaceae family 1 species (Borerria alata), Solanaceae 1 species family (Physalis angulate L.), Verbenaceae family 1 species (Stachytarpeta jamaicensis). In addition, from the existing 16 species, the most commonly weeds found are from the family of Asteraceae, Melastomataceae, and Poaceae. Keywords: Weeds, Plantations, Coffee, Types, Teras Terunjam Village.

scholarly journals Sifat campuran herbisida berbahan atrazin 500g/L+ mesutrion 50 g/L terhadap beberapa jenis gulma

Kultivasi ◽  
2018 ◽  
Vol 17 (2) ◽  
Author(s):  
Dedi Widayat ◽  
Uum Umiyati ◽  
Yayan Sumekar ◽  
Dani Riswandi
Keyword(s):  
Weed Control ◽  
Linear Regression Analysis ◽  
Cyperus Rotundus ◽  
Ageratum Conyzoides ◽  
Digitaria Sanguinalis ◽  
A Value ◽  
Herbicide Mixture ◽  
Herbicide Mixtures ◽  
Four Levels ◽  
Cleome Rutidosperma

AbstrakGulma bila tidak dikendalikan dapat menurunkah hasil tanaman 20% sd 80%, untuk itu pengendalian gulma mutlak diperlukan. Pengandalian gulma dengan menggunakan herbisida tunggal bila dilakukan terus menerus akan menimbulkan gulma resisten, untuk mengnangulanginya perlu dilakukan pencampuran herbisida. Campuran herbisida dengan dua atau lebih jenis bahan aktif dapat bersifat sinergis, aditif, atau antagonis. Tujuan penelitian adalah untuk mengetahui sifat campuran herbisida Atrazin 500g/L + Mesutrion 50 g/L terhadap beberapa jenis gulma. Penelitian dilakukan pada bulan Maret-Juni 2017, di Laboratorium Kultur Terkendali Universitas Padjadjaran, Jatinangor. Perlakuan terdiri dari tiga jenis herbisida dengan empat tingkat dosis, yaitu herbisida tunggal Atrazine (1080, 540, 270, 135, 0  g /ha), Mesutrion (196, 98, 49, 24,5, 0 g/ha) dan campuran herbisida dari Atrazin 500g/L+ Mesutrion 50 g/L (880,440, 220,110,0 g/ha) dengan empat ulangan. Gulma target adalah Cyperus rotundus, Axonopus compressus, Digitaria sanguinalis, Ageratum conyzoides, Alternanthera piloxeroide,, Cleome rutidosperma.  Data dianalisis dengan analisis regresi linier dan metode MSM untuk menentukan perlakuan LD50 dan harapan LD50. Hasil penelitian menunjukkan Herbisida Campuran Atrazin 500g/L + Mesutrion 50 g/L memiliki nilai LD50 Harapan sebesar 0.097 g ai/ha dan nilai LD50 perlakuan sebesar 0.0283 g ai/ha dengan kotoksisitas sebesar 3.416 ( > 1) menandakan sifat campuran yang sinergis pada keenam gulma yang diuji yaitu A. conyzoides, A. piloxeroide,, C. rutidosperma, C. rotundus, A. compressus, D. sanguinalis.Keywords: Atrazine, Mesutrion , Herbisida campuran, gulma.AbstractWeed can decrease the yield of plants 20% to 80% if they cannot be controlled, so weed control is absolutely necessary. Weed control by using a single herbicide continuously will cause weeds resistant, so it is necessary to mix herbicides. Combinations of herbicide with two or more types of active ingredient can be synergistic, additive, or antagonistic. The purpose of the study was to determine the characteristic of the herbicide mixture of Atrazine 500 g / l + Mesutrion 50 g / l for several types of weeds. The study was conducted in March – June 2017, at the Controlled Culture Laboratory, Padjadjaran University, Jatinangor. The treatment consisted of three types of herbicides with four levels of dosage, namely Atrazine herbicide (1080, 540, 270, 135, 0 g/ha), Mesutrion herbicide (196, 98, 49, 24.5, 0 g/ha) and herbicides mixtures Atrazine 500 g/L + Mesutrion 50 g/L (880,440, 220,110.0 g/ha) with four replications. Target weeds were Cyperus rotundus, Axonopus compressus, Digitaria sanguinalis, Ageratum conyzoides, Alternanthera piloxeroide, Cleome rutidosperma. Data were analyzed by linear regression analysis and MSM method to determine LD50 treatment and LD50 expectations. The results showed that Atrazine 500 g/L + Mesutrion 50 g/L Herbicides Mixed had a value of Hopeful LD50 of 0.097 g ai/ha and LD50 treatment value of 0.0283 g ai/ha with a co-toxicity of 3.416 (> 1) that indicating a synergistic mixture in the sixth weeds tested are A. conyzoides, A. piloxeroide, C. rutidosperma, C. rotundus, A. compressus, D. sanguinalis.Keywords: Atrazine, Mesutrion , herbicide mixtures, weeds

scholarly journals Studi Kunjungan Harian Arthropoda Pada Tanaman Ageratum Conyzoides dan Synedrella Nodiflora di Area Pertanian Desa Wringinpitu Kecamatan Mojowarno Sebagai Bahan Pengembangan E-Katalog

2021 ◽  
Vol 1 (2) ◽  
pp. 31-35
Author(s):  
Ana Fitria ◽  
Nora Iffatul Maula Ahmad
Keyword(s):  
Visual Control ◽  
Ageratum Conyzoides ◽  
Synedrella Nodiflora

Refugia merupakan tanaman yang dapat menarik dan mengundang sejumlah musuh alami seperti hama, pretador dan parasitoid. Selain itu, refugia juga membantu para petani untuk melindungi sawahnya seperti tanaman padi, jagung dan lain-lain. Dengan adanya tumbuhan liar atau tanaman refugia sebagai bentuk pelestarian Artrhopoda agar ekosistem tetap terjaga dan seimbang. Penelitian ini bertujuan untuk mengetahui frekuensi dan distribusi temporal kunjungan harian Arthropoda pada tanaman Ageratum Conyzoides dan Synedrella Nodiflora hasilnya dari penelitian tersebut akan digunakan sebagai bahan pengembangan e-katalog. Penelitian dilakukan di area pertanian Desa Wringinpitu Kecamatan Mojowarno Kabupaten Jombang. Metode yang digunakan dalam penelitian ini adalah metode visual control dengan pengamatan dilakukan secara 3x ulangan. Hasil penelitian ini menunjukkan adanya perbedaan frekuensi dan ditribusi temporal kunjungan Arthropoda terhadapan tanaman Ageratum Conyzoides dan Synedrella Nodiflora. Pada tumbuhan liar Ageratum Conyzoides dikunjungi oleh 8 family Arthropoda sedangan tumbuhan liar Synedrella Nodiflora hanya dikunjungi 6 family Arthropoda. Hasil dari kegiatan pengamatan ini akan dibuat sebagai pengembangan bahan ajar e-katalog untuk memudahkan peserta didik agar dapat mengenal dan mempelajari tentang hewan Artrhopoda yang ada di area pertanian. Agar mendapatkan kelayakan dalam buku sampingan peserta didik ini, perlu divalidasi oleh ahli materi dan peserta didik dengan aspek-aspek yang dinilai mengguunakan skala likert kemudian dianalisis dan diperoleh tingkat pencapaian sebesar 80 % yang artinya layak digunakan.

scholarly journals Uji Efektifitas Herbisida Atrazin, Mesotrion, dan Campuran Atrazin+Mesotrion terhadap Beberapa Jenis Gulma

2017 ◽  
Vol 15 (1) ◽  
Author(s):  
Nana Ratna Wati ◽  
Dad Resiworo J. Sembodo ◽  
Herry Susanto
Keyword(s):  
Active Ingredient ◽  
Survival Model ◽  
Expectation Value ◽  
Significant Difference ◽  
Herbicide Mixture ◽  
Asystasia Gangetica

The aimed of this research was to know the effectiveness of mixing herbicides with active ingredient atrazin and mesotrion in controlling weeds and know the mixture characteristic. This research conducted in the plastic garden house private in Natar, South Lampung and in the Weeds laboratory of Agriculture faculty, Lampung University from June until July 2013. This Research arranged in a Randomized Completely Design (RCD). Treatment consists of three types of herbicides with six level of dosage active ingredient, namely of single herbicides is atrazin 500 g l-1 (0, 76, 152, 304, 608, and 1.215 ha g-1), mesotrion 50 g l-1 (0, 11, 22, 43, 86, and 172 g ha-1), and mixed herbicides from atrazin 500 g l-1 + mesotrion 50 g l-1 (0, 28, 56, 112, 225, and 450 g ha-1). The target weed were a type of broadleaves (Asystasia gangetica), a type of grasses (Paspalum conjugatum), and a type of sedges (Cyperus kyllingia).Homogenity tested using Bartlet and aditivity tested using Tukey, data analyzed by Analisis of Variance and different median values tested with Least Significant Difference (LSD) level 5%. Results showed that an active ingredient mixture of atrazin 500 g L-1 + mesotrion 50 g L-1 has LD50 expectation value of 51,48 g ha-1 and LD50 treatment of 257,48 g ha-1 with the co-toxicity value was 0.2 (co-toxicity < 1) until mixture was antagonist. Keywords: Atrazin, mesotrion, herbicide mixture, Multiplicative Survival Model ( MSM), LD50

Host Range of Stem and Bulb Rot Parasite Nematode (Ditylenchus dipsaci)

2020 ◽  
Vol 840 ◽  
pp. 137-141
Author(s):  
Alfianida Musyarofah ◽  
Siwi Indarti
Keyword(s):  
Host Range ◽  
Wild Plants ◽  
Apium Graveolens ◽  
Ageratum Conyzoides ◽  
Central Java ◽  
Ipomea Batatas ◽  
Host Status ◽  
Ditylenchus Dipsaci ◽  
Bulb Rot ◽  
Synedrella Nodiflora

The aim of this research was to determine the host status of various species of plants and wild plants against Ditylenchus dipsaci. The research was carried out by conducting a survey and collecting sample at Central Java garlic centers situated in Magelang, Temanggung, Brebes, and Tegal. The host range of this nematode was diagnosed using a root painting method called the Byrd method. Nematodes in the root tissue were observed and calculated using compound microscope at 100x magnification and their images were captured using an optilab. The results showed that Allium sativum, A. cepa, A. porrum, Brassica oleracea var. botrytis, B. oleracea var. italica, B. chinensis var. parachinensis, Lactuca sativa, Zea mays, Capsicum frutescens, Apium graveolens, Cucumis sativus, Solanum tuberosum, Daucus carota are positively the hosts of D. dipsaci. Whereas B.oleracea var. capitata, Ipomea batatas, Colocasia esculenta are not the host of D. dipsaci. D. dipsaci also attacked to weed of Ageratum conyzoides. Grangea maderaspatana, Eleusine indica,Synedrella nodiflora are not the host of D. dipsaci. Lumbu Putih, Sangga Sembalun, and Lumbu Kuning varieties are good hosts for D. dipsaci. Tawangmangu Baru is a variety that is not suited for D.dipsaci.

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