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

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

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

Agrikultura ◽

10.24198/agrikultura.v30i3.24831 ◽

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

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Influence of the sowing depth and amount of sugarcane straw on the emergence of Chloris polydactyla and Eleusine indica and their control by herbicides applied pre-emergence

Semina Ciências Agrárias ◽

10.5433/1679-0359.2017v38n3p1187 ◽

2017 ◽

Vol 38 (3) ◽

pp. 1187

Author(s):

Marcelo Rafael Malardo ◽

Patrícia Andrea Monquero ◽

Paulo Henrique Vieira dos Santos ◽

Nagilla Moraes Ribeiro ◽

Paulo Vinicius da Silva ◽

...

Keyword(s):

Rainfall Regime ◽

Herbicide Application ◽

Dry Period ◽

Sowing Depth ◽

Eleusine Indica ◽

Sugarcane Straw ◽

Randomized Design ◽

Emergence Percentage ◽

Completely Randomized Design ◽

Rainfall Regimes

The objective of this study was to evaluate the effect of the sowing depth and amount of sugarcane straw on the soil on the emergence of Chloris polydactyla (‘capim-branco’) and Eleusine indica (Indian goosegrass) and to determine the efficacy of herbicides applied pre-emergence in the control of these species under different straw amount and rainfall regime conditions. The experiments were conducted in a completely randomized design with four replications. In the first experiment, the effects of six sowing depths (0.5, 1, 2, 4, 8, and 10 cm) and six sugarcane straw amounts (0, 1, 2, 4, 8 and 10 t ha -1) were assessed on the emergence of Indian goosegrass and ‘capim-branco’ in a 6 x 6 factorial arrangement. In the second experiment, the efficacy in the control of these species was evaluated for one control without herbicide and five treatments (indaziflam, metribuzin, tebuthiuron, indaziflam + metribuzin, and indaziflam + tebuthiuron) applied pre-emergence over four straw amounts (0, 1, 2, and 4 t ha-1) in a 6 x 4 factorial arrangement. This experiment was evaluated under two rainfall regimes in separate experiments (simulation of 20 mm of rainfall 1 or 10 days after herbicide application). The ‘capim-branco’ showed a marked reduction in emergence beginning at 2 t ha-1 of straw and a 2 cm sowing depth. For the Indian goosegrass, the decline in emergence mainly occurred beginning at 4 t ha-1 of straw and a 4 cm sowing depth. Only some of the Indian goosegrass plants emerged at the greater sowing depths (8 and 10 cm) and straw amounts (8 and 10 t ha-1), whereas no emergence of the ‘capim-branco’ was observed under these conditions. The treatments with sowing at a 1 cm depth and with 0, 1, 2, and 4 t ha-1 of straw provided the highest emergence percentage for the species. Application of the herbicide indaziflam alone was the only ineffective treatment for the control of the weeds regardless of the amount of straw and the water regime used. We concluded that the increase in the sowing depth and the amount of straw significantly reduced the emergence of the species and that the presence of straw and the dry period interfered with the herbicide efficacy.

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Efektivitas Atraktan terhadap Daya Tetas dan Jumlah Telur Nyamuk Aedes albopictus di Laboratorium

ASPIRATOR - Journal of Vector-borne Disease Studies ◽

10.22435/asp.v11i2.1164 ◽

2019 ◽

Vol 11 (2) ◽

pp. 99-106

Author(s):

Muhammad Rasyid Ridha ◽

Abdullah Fadilly ◽

Budi Hairani ◽

Wulan RSG Sembiring ◽

Gusti Meliyanie

Keyword(s):

Aedes Albopictus ◽

Gravid Female ◽

Hemorrhagic Fever ◽

Imperata Cylindrica ◽

Eleusine Indica ◽

Surrounding Environment ◽

Randomized Design ◽

Kolmogorov Smirnov ◽

Completely Randomized Design ◽

Smirnov Test

Abstract. Aedes albopictus can act as a primary or secondary vector of dengue hemorrhagic fever andchikungunya. Its population needs to be controlled. One of the environmentally-friendly control methods isthe use of ovitrap. Ovitrap will be more optimal if it added by attractant substances from easily obtainedingredients in the surrounding environment. This study aims to determine the effectiveness of attractants inthe form of water-soaked paddy (Oryza sativa), cogongrass (Imperata cylindrica) and Indian goosegrass(Eleusine indica). An experimental study with a completely randomized design (CRD) was carried out at theEntomology Laboratory of Balai Litbangkes Tanah Bumbu in January - April 2018. The population of thisstudy is the 10th filial of Ae. albopictus laboratory colonization and gravid female mosquito as samples.Material combination in the study was paddy straw soaking water (ARJP), Indian goosegrass immersionwater, cogongrass soaking water, Ae albopictus used eggs laying water (ABT), and distilled water as control(K). Repetition was done five times. Effectiveness of attractants analyzed by ANOVA and LSD tests. Datanormality tested by Kolmogorov-Smirnov test, if it was not fulfilled, the Kruskal Wallis test was used. Theresults showed that the use of attractants of water-soaked paddy, Indian goosegrass and cogongrass provedto have a different effect on the number of Aedes albopictus mosquito eggs compared to aquades and eggslaying water, but there was no influence between the three types of attractants.

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Efficacy of Fungicides Against Rhizoctonia solani Inciting Rhizome Rot Diseases on Large Cardamom (Amomum subulatum Roxb.)

International Journal of Applied Sciences and Biotechnology ◽

10.3126/ijasbt.v8i1.27240 ◽

2020 ◽

Vol 8 (1) ◽

pp. 61-64

Author(s):

Ajaya Karkee ◽

Dhanik Lal Mandal

Keyword(s):

Rhizoctonia Solani ◽

Agricultural Research ◽

Research Station ◽

Active Ingredients ◽

Randomized Design ◽

Mycelia Growth ◽

Completely Randomized Design ◽

Amomum Subulatum ◽

Large Cardamom

An in-vitro experiment was carried out for testing the efficacy of various fungicides by adopting poisoned bait method against Rhizoctonia solani (isolated from large cardamom) in Agricultural Research Station, Pakhribas. The experiments were conducted with Completely Randomized Design (CRD) during 2016 with four replications. Two level of concentration of the fungicides (10 ppm and 100 ppm) were used and concentration was calculated based on active ingredients (a.i.) of the pesticides. At lower concentration (10 ppm), Nativo (Tubeconazole 50% + Trifloxystrobin 25 WG) and Dhanustan (Carbendazim 50 % WP) whereas at higher concentration (100 ppm), Folicure (Tubeconazole 25.9 %) and Saaf (Carbendazim 12 % + Mancozeb 63 % WP) found effective for the inhibitions of mycelia growth of R. solani. For the control of R. solani, Nativo and Dhanustan showed greatest inhibition of mycelia growth at 10 ppm concentration as compared to other fungicides. The fungicides containing Tubeconazole and Carbendazim as active ingredients, shows highest degree of mycelia inhibitions as compared to others. The fungicides found effective for inhibition of mycelia growth of R. solani in this study should be further tested in field conditions to verify their efficacy as well as to determine their optimum doses of application. Int. J. Appl. Sci. Biotechnol. Vol 8(1): 61-64

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Diferentes desinfetantes sobre a contaminação e desempenho da incubação de ovos de avestruz

Colloquium Agrariae ◽

10.5747/ca.2020.v16.n2.a365 ◽

2020 ◽

Vol 16 (2) ◽

pp. 114-119

Author(s):

Nadia Nobrega Valdo ◽

Sheila Merlo Garcia ◽

Lilian Francisco Arantes de Souza

Keyword(s):

Weight Loss ◽

Mortality Rate ◽

Microbiological Analysis ◽

Active Ingredients ◽

Egg Mortality ◽

Randomized Design ◽

Significant Difference ◽

Completely Randomized Design ◽

Egg Shell ◽

The Moment

From the moment of laying, eggs come into contact with microorganisms that adhere to the shelland disinfection is the process that reduces contamination by preventing them from penetrating the shell and invading the egg's internal content, however, different active principles can result in effects several. The objective was to evaluate the efficiency of different active principles in the disinfection of ostrich eggs on contamination andthe productive indexes of incubation. 16 eggs were used, distributed in two disinfectant active ingredients (quaternary ammonia and formaldehyde) in a completely randomized design with 8 replications. Contamination of the eggshell was evaluated by microbiological analysis on the surface of the eggshell after disinfection. The productive indexes of the incubation were evaluated by means of the index of weight loss of the egg (%), mortality rate (%), embryology (%) and hatchability (%). There was no significant difference (p> 0.05) between the active ingredients used in terms of disinfection capacity and productive indexes of incubation. It is concluded that bothactive ingredients are efficient in the disinfection of eggs, ensuring the control of contamination on the surface of the egg shell during the storage and incubation processes, in addition to not affecting the parameters of the incubation.

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Respon Allelopati Gulma Ageratum conyzoides dan Borreria alata terhadap Pertumbuhan dan Hasil Tiga Varietas Kedelai (Glycine max)

Jurnal Agro ◽

10.15575/162 ◽

2015 ◽

Vol 2 (1) ◽

pp. 39-49 ◽

Cited By ~ 1

Author(s):

Abdul Karim Kilkoda

Keyword(s):

Glycine Max ◽

Root Exudates ◽

Crude Extract ◽

Growth And Yield ◽

Independent Effect ◽

Ageratum Conyzoides ◽

Yield Parameters ◽

Randomized Design ◽

Completely Randomized Design ◽

Almost All

Penelitian ini bertujuan untuk menguji pengaruh eksudat akar gulma Ageratum conyzoides dan Borerriaalatayang didalamnya terkandung alelopati tanin dan fenol terhadap pertumbuhan dan hasil tiga varietas kedelai berdasarkan ukuran benih kedelai. Percobaan dilaksanakan di Rumah kaca Fakultas Pertanian Universitas Padjadjaran, JatinangorKabupaten Sumedang, Jawa Baratpada bulan September 2014. Penelitian disusun dalam Rancangan Acak Lengkap factorial. Faktor pertama adalah ekstrak kasar gulma, yaitu; EG0 = ekstrak gulma 0 g/100 ml(kontrol), EG1 = ekstrak gulma (Ageratum + Borreria)100 (g/v), EG2 = ekstrakgulma (Ageratum + Borreria)200 (g/v), EG3 = ekstrak gulma (Ageratum + Borreria) 300 (g/v), faktor kedua yaitu ukuran bobot dan jenis kedelai; K1 = varietas Gepak Kuning (bobot 100 biji : 6,82 gram) ukuran bobot kecil, K2 = varietas Gema(bobot 100 biji : 12 gram) ukuran bobot sedang, K3 = varietas Grobogan (bobot 100 biji : 17,8 gram) ukuran bobot besar. Tidak terdapat interaksi antara ekstrak kasar gulma dengan ukuran bobot dan jenis kedelai terhadap seluruh parameter pertumbuhan dan hasil yang diamati. Terdapat pengaruh mandiri antar sesama varietas kedelai hampir pada semua parameter pertumbuhan dan hasil tanaman kedelai, kecuali parameter luas daun, dengan nilai tertinggi dihasilkan oleh varietas Groboganyang memiliki ukuran biji besar. Terdapat pengaruh mandiri dari ekstrak kasar gulma Ageratum conyzoides dan Borerriaalata pada semua parameter pertumbuhan dan hasil tanaman kedelai.This study aimed to examine the effect of root exudates of weeds Ageratum conyzoides and Borerria alata therein containing tannins and phenols as allelopathy on growth and yield of three soybean varieties with concern to size of the seed. The experiment was conducted in greenhouse of Faculty of Agriculture, Universitas Padjadjaran, Jatinangor Sumedang, West Java in September 2014. The study was set in completely randomized design factorial. First factor was the weed crude extract, namely; EG0 = weed extract 0 g / 100 ml (control), EG1 = weed extract (A. conyzoides + B. alata) 100 (g / v), EG2 = weed extract (A. conyzoides + B. alata) 200 (g / v), EG3 = weed extract (A. conyzoides + B. alata) 300 (g / v). Second factor was and type of soybean; K1 = variety Gepak Kuning (weight of 100 seeds: 6.82 gram) weight size small, K2 = variety Gema (weight of 100 seeds: 12 gram) weight size medium, K3 = variety Grobogan (weight of 100 seeds: 17.8 gram) weight size big. There was no interaction between weed crude extract and soybean type. Meanwhile, there was independent effect among varieties tested for almost all parameters observed, except for leaf width. There was also independent effect from crude extract of Ageratum conyzoides and Borerria alata on all growth and yield parameters of soybean.RESPON ALLELOPATI GULMA Ageratum conyzoides DAN Borreria alata TERHADAPPERTUMBUHAN DAN HASIL TIGA VARIETAS KEDELAI (Glycine max)<w:LsdException Locked="false" Priority="70" SemiHidden="false" UnhideWhenUsed="false" Name="Dark List

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Efektivitas Ekstrak Daun Babadotan Sebagai Green Antiseptic untuk Pencelup Puting Sapi Perah

Jurnal Agripet ◽

10.17969/agripet.v17i1.6927 ◽

2017 ◽

Vol 17 (1) ◽

pp. 15-23

Author(s):

Mahpudin Mahpudin ◽

Fajar Wahyono ◽

Dian Wahyu Harjanti

Keyword(s):

Povidone Iodine ◽

Subclinical Mastitis ◽

Mammary Glands ◽

Ageratum Conyzoides ◽

Percentage Decrease ◽

California Mastitis Test ◽

Randomized Design ◽

Result Show ◽

Completely Randomized Design ◽

Teat Dipping

ABSTRAK. Penelitian dilakukan untuk mengetahui efektifitas ekstrak daun babadotan sebagai bahan aktif cairan pencelup puting (teat dipping) untuk menghambat masuknya bakteri melalui puting, serta membandingkan efektifitasnya dengan povidone iodine. Dua belas ekor sapi perah laktasi penderita mastitis subklinis digunakan dalam rancangan acak lengkap (RAL). Perlakuan berupa teat dipping menggunakan ekstrak daun babadotan 5%, 10%, 15% dan povidone iodine 10% selama 14 hari. Tingkat peradangan kelenjar ambing diketahui dari penjumlahan skor California mastitis test (CMT) dari keempat puting sapi. Hasil penelitian menunjukan penurunan rata-rata total koloni bakteri dalam susu yang sangat signifikan (P0.01) dari 6,1-7,3 log cfu/ml sebelum pencelupan menjadi 4,4-6,0 log cfu/ml sesudah pencelupan. Tidak ada perbedaan efektifitas sebagai antibakteri antara ekstrak daun babadotan dan povidone iodine dalam menurunkan total koloni bakteri dalam susu. Terjadi penurunan tingkat peradangan kelenjar ambing (P0.01) dari rata-rata 6,9 sebelum teat dipping menjadi 4,2 sesudah teat dipping. Persentase penurunan tingkat peradangan ambing ekstrak daun babadotan lebih tinggi (P0.05) dari povidone iodine. pH susu setelah dipping lebih rendah (P0,05) dari pH susu sebelum dipping. Berdasarkan hasil dapat disimpulkan ekstrak daun babadotan dapat digunakan sebagai alternative antiseptik yang bertindak sebagai anti bakteri dan anti inflamasi dengan konsentrasi terbaik 5% ekstrak. (Effectiveness of Ageratum conyzoides leaves extract as green antiseptic for teat dipping practices in dairy cow) ABSTRACT. The research was conducted to determine the effectiveness babadotan leaf extract (BLE) as an active ingredient of antiseptic teat dip for inhibiting the entry of bacteria through the nipple, and to compare its effectiveness with synthetic antiseptic povidone iodine(PI). Twelve lactating dairycows suffering from subclinical mastitis were used in a completely randomized design. Teat dipping use 5%, 10% and 15% of BLE and PI 10% for 14 days. The result show average total bacterial colonies in milk was reduced significantly (P0.01) from 6,1-7,3log cfu/ml at before dipping to 4,4-6,0 log cfu/ml after dipping. There are no differences between BLE and PI in reducing total bacterial colonies. A decline in the level of the mammary glands inflammation (P0.01) from an average at before teat dipping 6.9 to 4.2 after teat dipping. Compared with PI, the percentage decrease in the level of mammary gland’s inflammation of cows using BLE antiseptic is significantly higher (P0.05). Milk pH at after teat dipping practices is lower (P0.05) than before dipping. In conclusion, BLE can be used as an alternativeantiseptic due to its effectiveness as antibacterial and anti-inflammatory. The recommendation concentration of the babadotan antiseptic is 5% of extract.

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Competitive ability of corn in coexistence with goosegrass

Planta Daninha ◽

10.1590/s0100-83582013000200005 ◽

2013 ◽

Vol 31 (2) ◽

pp. 281-289 ◽

Cited By ~ 10

Author(s):

A.C.D. Wandscheer ◽

M.A. Rizzardi ◽

M. Reichert

Keyword(s):

Plant Height ◽

Competitive Ability ◽

Dry Mass ◽

Agricultural Systems ◽

Weed Species ◽

Replacement Series ◽

Eleusine Indica ◽

Randomized Design ◽

Completely Randomized Design ◽

Corn Plants

Competition between plants is one of the main interferences that occurs in agricultural systems and accounts for significant crop yield reductions. The aim of this study was to assess the competitive ability of corn in coexistence with the weed species Eleusine indica. The experiments were conducted in a greenhouse, in the growing season 2010/2011, and were arranged in a completely randomized design with four replications. The experimental units consisted of plastic pots with a volumetric capacity of 8 L. Treatments were arranged in a replacement series with five proportions of corn plants and weed: 100:0, 75:25, 50:50, 25:75, and 0:100, respectively, with a constant population of eight plants per pot, at the end of each treatment. The competitiveness analysis was conducted through diagrams applied to the replacement series experiment and competitiveness index, and the variables evaluated were root, shoot, and total dry mass, and plant height. When in equal proportions, corn showed competitive ability equivalent to goosegrass in relation to the variables shoot, root, and total dry mass. Goosegrass was more competitive than the crop in relation to plant height.

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EMERGÊNCIA DE PLANTAS DANINHAS EM FUNÇÃO DA POSIÇÃO DA SEMENTE E QUANTIDADE DE PALHA DE CANA-DE-AÇÚCAR

Scientia Agraria ◽

10.5380/rsa.v12i2.33721 ◽

2011 ◽

Vol 12 (2) ◽

Author(s):

Micheli Satomi YAMAUTI ◽

Arthur Arrobas Martins BARROSO ◽

Paulo Roberto Fidelis GIANCOTTI ◽

Vanessa Luzia SQUASSONI ◽

Lucas Tadeu Mazza REVOLTI ◽

...

Keyword(s):

Dry Mass ◽

Variance Analysis ◽

Initial Development ◽

Eleusine Indica ◽

Sugarcane Straw ◽

Randomized Design ◽

Additional Control ◽

Seed Position ◽

Emergence Percentage ◽

Completely Randomized Design

O objetivo do trabalho foi avaliar os efeitos de diferentes densidades de palha de cana-de-açúcar e do posicionamento das sementes de Euphorbia heterophylla, Mucuna cinereum, Digitaria nuda e Eleusine indica sobre a emergência e o desenvolvimento inicial das plantas. O delineamento experimental utilizado foi o delineamento inteiramente casualizado, com 15 tratamentos e quatro repetições distribuídos em esquema fatorial 3 x 5 com testemunha adicional; o primeiro fator foi constituído pelas posições das sementes em relação a palha (abaixo, entre e sobre) e o segundo pelas quantidades de palha (1, 2, 4, 8 e 16 t ha -1) e a testemunha sem palha. Aos 15 dias após a semeadura (DAS) foram realizadas avaliações de altura, massa seca da parte aérea e porcentagem de emergência para E. heterophylla e M. cinereum e, aos 28 DAS, avaliações de massa seca da parte aérea e porcentagem de emergência para D. nuda e E. indica. Os dados obtidos foram submetidos ao teste F na análise de variância e as médias foram comparadas com o auxílio do teste de Tukey a 5% de probabilidade. Constatou-se que a emergência e o desenvolvimento inicial de E. heterophylla e M. cinereum foram reduzidos com o aumento da quantidade de palha e foram afetados com o posicionamento das sementes, mas não foram inibidos em nenhuma das condições, indicando uma maior agressividade destas daninhas em condições de colheita mecanizada. Já a emergência de espécies D. nuda e E. indica não sofreu interferência do posicionamento da semente e a cobertura do solo com 8 e 16 t ha -1 de palha de cana inibiu a emergência de suas plântulas.germinação. ABSTRACT This work was carried out to evaluate the effects of sugarcane straw density and positions of seeds of Euphorbia heterophylla, Mucuna cinereum, Digitaria nuda and Eleusine indica on emergence and initial development of plants. The experiment were arranged in a completely randomized design, with 15 treatments and four replications, in a factorial arrangement 3 x 5 with a additional control; the first factor was constituted by position of seeds related to the straw (under, between and on) and the second by five quantities of straw (1, 2, 4, 8 e 16 t ha -1) with a control without straw. At 15 days after sowing (DAS) it was realized evaluations of height, dry mass and emergence percentage for E. heterophylla and M. cinereum, and at 28 DAS it was analyzed dry mass and emergence percentage for D nuda e E. indica. Data obtained were submitted to F in variance analysis test and means were compared with Tukey at 5% probability. Emergence and initial development of E. heterophylla e M. cinereum were reduced with increasing of straw and were affected by seed position, but it was not inhibited in none of conditions, indicating aggressiveness of these weeds in sugarcane mechanized harvest conditions. D. nuda and E. indica emergence was not affected by seed position and coverage soil with 8 e 16 t ha -1 of sugarcane straw inhibited its emergence.

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The Potential of Bandotan Leaves (Ageratum Conyzoides L.) Extract for Natural Curing of Eggs

Jurnal Medika Veterinaria ◽

10.21157/j.med.vet..v8i1.3342 ◽

2008 ◽

Vol 8 (1) ◽

Author(s):

Andi Novita

Keyword(s):

Leaf Extract ◽

Storage Time ◽

Observation Interval ◽

Egg Yolk ◽

Ageratum Conyzoides ◽

Treatment Groups ◽

Randomized Design ◽

Completely Randomized Design ◽

Index Value ◽

Haugh Unit

This study aims to determine the effect of eggs immersed in extracts of bandotan leaves on the organoleptic quality, haugh unit, and yolk index. The samples used were 105 eggs, weighing of 51.33 ± 55.9 grams collected from the farm in Jantho. By using a completely randomized design with factorialpattern the samples were divided into five treatment groups. P0 (control) was not given any treatment , P1 was immersed in 10 % bandotan leaf extract for12 hours, P2 was immersed in 10% bandotan leaf extract for 24 hours , P3 was immersed in 20% bandotan leaf extract for 12 hours and P4 wasimmersed in 20% bandotan leaf extract for 24 hours. The observation interval was done on week 0, 1, 2, 3, and 4. The organoloeptic observation of alleggs showed that either eggs on P1and P2 treatment showed no significant changes until week 4. The HU value of P0, P1, and P3 were 68.16 (grade A),70.34 (grade A), and 75.89 (grade AA), respectively. Yolk index value of P0, P1,and P2 were 0.65, 0.71, and 0.74 , respectively. In conclusion, the higherthe concentration of bandotan leaf extract given the longest the storage time of eggs based on the maintain of HU and YI value.____________________________________________________________________________________________________________________Key words: bandotan leaf, haugh unit, organoleptic, egg, yolk index

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