scholarly journals CONTROL OF MAIZE WEEVIL WITH APPLICATION OF DIATOMACEOUS EARTH IN CORN GRAINS STORED IN DIVERSE TEMPERATURES

2019 ◽  
Vol 27 (5) ◽  
pp. 400-411
Author(s):  
Henrique Delevati Fagundes ◽  
Rafael Gomes Dionello ◽  
Lauri Lourenço Radünz ◽  
Francisco Wilson Reichert Júnior
Keyword(s):  
Diatomaceous Earth ◽  
Storage Temperature ◽  
Animal Health ◽  
Dry Weight ◽  
Sitophilus Zeamais ◽  
Maize Weevil ◽  
Randomized Design ◽  
Weight Decrease ◽  
And Storage ◽  
Different Doses

The insect known as maize weevil (Sitophilus zeamais) is one of the most important pests of stored corn in Brazil. Among the various forms of control, one can highlight the use of inert powders, which has advantages of not providing risk to the environment or to human and animal health, besides not having reports of insect resistance. Thus, this work evaluated the effect of different doses of diatomaceous earth on the development of Sitophilus zeamais on two temperature conditions on corn grain storage. A completely randomized design was adopted in a factorial 4x2x4 (diatomaceous earth dose x storage temperature x storage time) dosage, with three replicates. The diatomaceous earth doses were: 0, 250, 500 and 1000 g t-1 and subsequently stored at temperatures of 22 and 30°C for 90 days. The bulk density decreased during the storage for all diatomaceous earth doses applied, but in inverse proportion to the dose increment. Diatomaceous earth has proven better efficiency in the control of S. zeamais, with increase in dose and storage temperature. Dry weight decrease was observed in all doses and storage temperatures evaluated, but it was more pronounced in those grains that have not received the application of diatomaceous earth.

scholarly journals CNSL Concentration and Natural Dyes Effects in Formulation of Botanical Pesticide on Sitophilus zeamais and Maize Seed Quality

2020 ◽  
Vol 4 (1) ◽  
pp. 1-9
Author(s):  
Dian Astriani ◽  
Wafit Dinarto ◽  
Aji Jatmiko
Keyword(s):  
Seed Quality ◽  
Sitophilus Zeamais ◽  
Natural Dyes ◽  
Maize Weevil ◽  
Maize Seeds ◽  
Botanical Pesticide ◽  
Randomized Design ◽  
Efficiency And Effectiveness ◽  
Push Down

Maize is an important commodity in Indonesia and is vulnerable to maize weevil (Sitophilus zeamais) during storage which can cause a 100% yield loss. Chasew Nut Shell Liquid (CNSL) is a botanical pesticide able to control S. zeamais. Increasing CNSL efficiency and effectiveness requires additional adjuvants, such as solvents and dyes. Natural dyes addition is intended to provide seed markers. This study aimed to determine the best CNSL and natural dye formulation to control maize weevil and maintain maize seeds quality during storage. The research was conducted from August to October 2018 at the Agronomy Laboratory, Faculty of Agroindustry, Yogyakarta Mercu Buana University. The research was a single factor consisted of seven treatments with four replications arranged in a completely randomized design (CRD). Treatments were combinations of CNSL concentrations with the addition of natural dyes from suji leaf and teak leaves with one untreated control. The results of the research showed that CNSL as a seed treatment botanical pesticide could cause mortality and suppress S. zeamais populations and maintain the quality of maize seeds during storage for 12 weeks. Treatments with 20% CNSL formulation concentration and the addition of natural dyes both leaf pleomele or teak leaves could cause higher mortality and push down more populations and also could better maintain seed quality than 10 and 0% CNSL formulation concentrations.

scholarly journals Pengujian Umur Simpan Kopi Arabika Bubuk Pada Jenis Kemasan dan Suhu Simpan Yang Berbeda

2021 ◽  
Vol 8 (1) ◽  
pp. 37
Author(s):  
Elsera Br Tarigan ◽  
Edi Wardiana ◽  
Handi Supriadi
Keyword(s):  
Shelf Life ◽  
Storage Temperature ◽  
Storage Period ◽  
Fat Content ◽  
Test Method ◽  
Life Test ◽  
Coffee Plantations ◽  
Randomized Design ◽  
Completely Randomized Design ◽  
And Storage

<p><em>Coffee is a beverage that is widely consumed around the world. Proper packaging and storage temperature may extend shelf life of ground coffee. The study aimed to analyze the shelf life of ground Arabica coffee stored in different packaging types and temperature, conducted at smallholder coffee plantations in Garut Regency and the Integrated Laboratory of Indonesian Industrial and Beverage Crops Research Institute, Sukabumi, from June to August 2018. A completely randomized design in factorial was used with 3 factors and 2 replications. The first factor was the packaging type  which consisted of 3 types: thick alumunium  foil 65</em><em>m</em><em> (AF65), thick alumunium  foil 130</em><em>m</em><em> (AF130), and thick lamination 114</em><em>m</em><em> (L144). The second factor was the storage temperature which consisted of 3 levels: 25 <sup>o</sup>C, 35 <sup>o</sup>C, and 45 <sup>o</sup>C, while the third factor was the storage period which consisted of 5 levels: coffee unstored, and coffee stored for 2 weeks, 4 weeks, 6 weeks, and 8 weeks. The variables observed were the water and fat content, and the analysis of shelf life was carried out using the ASLT (Accelerated Shelf Life Test) method. The results showed that during storage, the water content increased, whereas the fat content decreased. Fat content is a critical variable in determining the shelf life of coffee. The coffee in AF130 packaging has longer shelf life than in AF65 and L144. To extend the shelf life of coffee packaged in AF130 and L144 is best kept at 45<sup> o</sup>C whereas coffee in AF65 packaging  is ideally at 25<sup> o</sup>C.</em></p>

scholarly journals THE EFFECT OF CORONA INCANDESCENT PLASMA RADIATION AND STORAGE TEMPERATURE ON THE VIABILITY OF GARLIC SEEDS (ALLIUM SATIVUM L. LUMBU KUNING VARIETY)

2021 ◽  
Vol 5 (1) ◽  
pp. 11-17
Author(s):  
Febiasasti Trias Nugraheni ◽  
Erma Prihastanti ◽  
Endah Dwi Hastuti
Keyword(s):  
Room Temperature ◽  
Allium Sativum ◽  
Storage Temperature ◽  
Germination Percentage ◽  
Plasma Radiation ◽  
Agricultural Commodity ◽  
Time Duration ◽  
Randomized Design ◽  
Completely Randomized Design ◽  
And Storage

Garlic (Allium sativum L.) is an agricultural commodity which is widely consumed by the community. The obstacle experienced in cultivation is that a relatively long dormancy period of about 6-7 months. The dormancy of garlic seeds occurs because the embryo has not yet been fully formed, and the growth hormone and inhibitory hormone are not balanced. The methods used to break dormancy and accelerate germination are by using corona incandescent plasma radiation and storage temperature. The research utilized factorial Completely Randomized Design (CRD), consisting of six treatments with five replications. The first factor was the corona incandescent plasma radiation carried out on the garlic seeds ‘Lumbu Kuning’ variety with time duration of 0, 15, and 30 minutes. The second factor was storage temperature comprising of room temperature and cold temperature of 7oC stored for 30 days. Viability parameters observed are germination percentage dan the length of sprouts. The data were analyzed by using ANOVA followed by the DMRT test at the 95% confidence level. The results showed that corona incandescent plasma radiation influenced the germination percentage using plasma radiation for 15- 30 minutes.

scholarly journals The Insecticide Toxicity and Repelling Ability of Jeruk Purut (Citrus hystrix D.C) Leaf Extract on Maize Weevil (Sitophilus zeamais Motsch)

2019 ◽  
Vol 5 (1) ◽  
Author(s):  
Alfia Wulansari ◽  
Nur Rochman ◽  
Setyono Setyono
Keyword(s):  
Mortality Rate ◽  
Key Words ◽  
Leaf Extract ◽  
Insect Pest ◽  
Sitophilus Zeamais ◽  
Maize Weevil ◽  
Insecticide Toxicity ◽  
Randomized Design ◽  
Completely Randomized Design ◽  
Sitophilus Zeamais Motsch

Sitophilus zeamais Motsch. is a primary storage insect pest damaging maize grains. Control of S. zeamais can be done by applying biopesticide. This study was aimed at assessing the ability of Jeruk Purut leaf extract, as biopesticide, to kill and repel Sitophilus zeamais Motsch. The study was conducted at Entomology Laboratory, Seameo Biotrop in March to August 2018. A completely randomized design with three replicates in each rate of Jeruk Purut leaf extract was used. In preliminary pesticide toxicity experiment, five rates of Jeruk Purut leaf extract, namely 0%, 2%, 4%, 6%, and 8% were applied. In preliminary repelling ability experiment, five rates of Jeruk Purut leaf extract, namely 1%, 2%, 4%, 6%, and 8% were applied. In the main pesticide toxicity and repelling ability trial, five rates of Jeruk Purut leaf extract, namely 3%, 6%, 9%, 12%, and 15% were applied. Results showed that in 24 hour after treating (HAT) no significant effects were found. Significant effects of Jeruk Purut leaf extract as insecticide on S. zeamais were found in 48 and 72 HAT. The highest mortality rate (82.2%) of S. zeamais was found in 15% rate of Jeruk Purut leaf extract in 72 HAT. The application of Jeruk Purut leaf extract was not found to give significant effects on repelling S. zeamais in 24, 48, and 72 HAT as indicated in their sharply fluctuating repellent values. The highest repelling ability (95%) was found in the application of 9% Jeruk Purut leaf extract in 24 HAT. It was concluded that Jeruk Purut leaf extract was more potential as insecticide repellent for Sitophilus zeamais Motsch. Key words: biopesticide, repellent, insecticide, maize, primary storage insect pest

scholarly journals Pengaruh Penambahan Natrium Benzoat dan Suhu Penyimpan Terhadap Mutu Minuman Herbal Cabe Jamu Cair

Rekayasa ◽  
2020 ◽  
Vol 13 (1) ◽  
pp. 77-81
Author(s):  
Millatul Ulya ◽  
Nadiyah Ferah Aronika ◽  
Khoirul Hidayat
Keyword(s):  
Analysis Of Variance ◽  
Sodium Benzoate ◽  
Storage Temperature ◽  
Total Dissolved Solids ◽  
Dissolved Solids ◽  
Randomized Design ◽  
Completely Randomized Design ◽  
Piper Retrofractum ◽  
And Storage

Minuman herbal cabe jamu cair merupakan inovasi produk baru yang masih perlu dikaji tentang metode pengawetannya. Penelitian ini bertujuan untuk mengetahui pengaruh penambahan konsentrasi natrium benzoat dan suhu penyimpanan terhadap mutu minuman herbal cabe jamu cair. Rancangan yang digunakan dalam penelitian ini adalah Rancangan Acak Lengkap (RAL) dengan 2 faktor yaitu pengaruh konsentrasi natrium benzoat (0 ppm, 200 ppm, 300 ppm) dan suhu penyimpanan (35 dan 45 °C). Hasil analysis of variance menunjukkan konsentrasi natrium benzoat berpengaruh nyata (P kurang dari 0,05) terhadap total padatan terlarut (TPT), warna dan total mikroba. Suhu penyimpanan berpengaruh nyata (Pkurang dari 0,05) terhadap total padatan terlarut (TPT), warna, dan total mikroba. Interaksi antara konsentrasi natrium benzoat dan suhu penyimpanan berpengaruh nyata (P kurang dari 0,05) terhadap total padatan terlarut (TPT).Kata Kunci: Cabe jamu, natrium benzoat, suhu penyimpanan, mutuEffect of Sodium Benzonate Addition and Storage Temperature on Quality of Piper Retrofractum Vahl Liquid Herbal DrinkABSTRACTPiper retrofractum vahl liquid herbal drink is an innovation of new products need to research about the method. This research aims to determine the effect of sodium benzoate addition and storage temperature on quality of piper retrofractum vahl liquid herbal drink. The design used in this study was a completely randomized design (CRD) with 2 factors, namely the effect of sodium benzoate concentration (0 ppm, 200 ppm, 300 ppm) and storage temperature (35°C and 45°C). The results analysis of variance shows that the concentration of sodium benzoate has a significant effect (P less than 0.05) on total dissolved solids (TDS), color and total microbes. Storage temperature has a significant effect (P less than 0.05) on total dissolved solids (TDS), color and total microbes. The interaction between sodium benzoate concentration and storage temperature was a significant effect (P less than 0.05) to total dissolved solids (TDS).Keywords: piper retrofractum vahl, sodium benzoate, storage temperature, quality .

scholarly journals Cypress (Cupressus macrocarpa) Leaf Powder Modulates Metabolism of Maize Weevil Sitophilus zeamais Motschulsky (Coleoptera: Curculionidae)

2020 ◽  
pp. 9-17
Author(s):  
Tange Denis Achiri ◽  
Eta Carine Agbor ◽  
Ateh Marie Anye ◽  
Assan N. Abdulai ◽  
Divine Nsobinenyui ◽  
...  
Keyword(s):  
Management Program ◽  
Sitophilus Zeamais ◽  
Control Treatment ◽  
Strong Positive Correlation ◽  
Maize Weevil ◽  
Strong Negative Correlation ◽  
Leaf Powder ◽  
Metabolic Activities ◽  
The University ◽  
Different Doses

Aims: Maize grains are severely damaged by maize weevil Sitophilus zeamais. Exploiting botanicals against synthetic insecticides as a control strategy has gained prominence in recent decades. The aim of the study was to investigate the potential of cypress (Cupressus macrocarpa) to exert some control on S. zeamais. Methodology: Maize and S. zeamais were collected from Muea market in Buea, Cameroon. The maize was heat sterilized and all debris removed. Sitophilus zeamais was reared for three generations before use. Ten S. zeamais were stored with 100 g of maize and 0 g, 2 g, 5 g, and 10 g of shade-dried cypress leaf powder was added in three replicates. Data was collected weekly for 5 weeks and analysis of variance was done. The study was conducted in a laboratory of the Teaching and Research farm in the University of Buea, Cameroon, in a randomized complete design. Results: Mortality of S. zeamais was significantly affected (F = 126.67, df = 3, 8, p < .001) by different doses of cypress leaf powder. The mean mortality was 0%, 40.47%, 50.6% and 70.67% for control, 2 g, 5 g and 10 g of cypress leaf powder, respectively. Grain damaged (%) and holed grain were also influenced by cypress leaf powder. The highest grain damaged and holed grain were from the control treatment. A strong positive correlation (r = 0.814, p < .001) was observed between grain damaged and holed grain while a strong negative correlation was observed between mortality and holed grain (r = -0.926, p < .001), and grain damaged (r = -0.913, p < .001). Conclusion: It is revealed that cypress leaf powder can alter some metabolic activities of S. zeamais, thus it can play a role in an integrated pest management program (IPM) of S. zeamais in maize storage.

scholarly journals Studies on food preferences of maize weevil, Sitophilus zeamais Mots. to different crops in Chitwan, Nepal

2016 ◽  
Vol 2 (1) ◽  
pp. 58-65
Author(s):  
Sheela Devi Sharma ◽  
Resham Bahadur Thapa ◽  
Gopal Bahadur KC ◽  
Ghanashyam Bhandari ◽  
Sundar Tiwari
Keyword(s):  
Free Choice ◽  
Food Preferences ◽  
Storage Condition ◽  
Rice Cultivar ◽  
Sitophilus Zeamais ◽  
Maize Weevil ◽  
Local Cultivar ◽  
Maize Cultivars ◽  
Polished Rice ◽  
Randomized Design

Food preference by the maize weevil, Sitophilus zeamais Motschulsky was studied on seven different crops and varieties including maize, wheat and rice. They were maize cultivars namely Arun-2, Manakamana-4, Deuti, buckwheat local cultivar, wheat cultivar namely Annapurna-1, polished rice-Radha 4 and unshelled rice cultivar Mansuli under storage condition at  Institute of Agriculture and Animal Science, Rampur, Chitwan, Nepal from June 2013 to February 2014 . The hosts were tested using completely randomized design with three replications and were laid in free-choice and no-choice conditions. The maximum number of grain loss was recorded in wheat followed by polished rice respectively. Similarly, the highest weight loss was recorded in polished rice followed by Wheat in both conditions. F1 progeny emergence of weevil was highest in wheat followed by polished rice in free-choice and in no choice conditions, the highest progeny were emerged from polished rice followed by wheat. The lowest numbers of weevils emerged from rice in both conditions. Maximum germination losses were recorded in wheat (24.33%) and lowest in Arun-2 (9.67). The rice showed a relatively higher preference to maize weevil under storage condition.

scholarly journals Pengaruh Ketebalan Plastik Polietilen Densitas Rendah Sebagai Bahan Pengemas terhadap Mutu Daun Seledri (Apium gravelens L.) Selama Penyimpanan Dingin

2019 ◽  
Vol 8 (2) ◽  
pp. 240
Author(s):  
I Kadek Puja Harta Hadi ◽  
Ida Ayu Rina Pratiwi Pudja ◽  
Gede Arda
Keyword(s):  
Weight Loss ◽  
Storage Temperature ◽  
Packaging Material ◽  
Low Density Polyethylene ◽  
Low Density ◽  
Randomized Design ◽  
Completely Randomized Design ◽  
The Right ◽  
And Storage

Salah satu cara yang dilakukan untuk mempertahankan kualitas daun seledri dan memperpanjang umur simpan adalah menggunakan pengemasan dengan ukuran ketebalan plastik polietilen densitas rendah (LDPE) yang tepat dan penyimpanan pada suhu rendah. Tujuan penelitian ini adalah untuk mengetahui pengaruh ketebalan plastik polietilen densitas rendah sebagai bahan pengemas terhadap mutu daun seledri selama penyimpanan dingin dan untuk mengetahui tingkat ketebalan plastik polietilen densitas rendah berapakah yang dapat mempertahankan mutu daun seledri yang terbaik. Metode penelitian ini menggunakan penelitian eksperimental. Rancangan  percobaan  yang  digunakan  adalah  Rancangan  Acak  Lengkap  (RAL) dengan perlakuan ketebalan plastik polietilen densitas rendah dengan ukuran ketebalan 0,02 mm; 0,03 mm; 0,04 mm; 0,05 mm, 0,06 mm. Pengamatan dilakukan setiap 3 hari sekali dan setiap perlakuan diulang sebanyak 3 kali pada suhu penyimpanan 100 ± 20C selama 18 hari penelitian. Parameter dalam penelitian ini adalah susut bobot, kadar air, warna, tekstur, tingkat kesegaran, dan aroma. Hasil analisis ragam menunjukkan bahwa perlakuan ketebalan plastik LDPE sebagai bahan pengemas daun seledri berpengaruh sangat nyata (P?0,01) terhadap parameter penelitian. Perlakuan terbaik diperoleh dari ketebalan plastik polietilen densitas rendah ukuran 0,04 mm dengan susut bobot 4,64 %, warna 18,97, tekstur 0,0455 N, kadar air 90,22 %, tingkat kesegaran 4,87 dan aroma 5,00. Kesimpulan bahwa tingkat ketebalan plastik LDPE 0,04 dapat mempertahankan mutu daun seledri paling lama diantara ukuran ketebalan yang lainnya yaitu selama 18 hari.     One way to maintain the quality of celery and extend shelf life is to use packaging with the right size level of low density polyethylene (LDPE) and storage at low temperatures. The purpose of this study was to determine the effect of low density polyethylene plastic as a packaging material on the quality of celery during cold storage and to determine what size level of low density polyethylene plastic can maintain the best quality celery. This research method uses experimental research. The study applied a completely Randomized Design (RAL) with one treatment factor: size level of LDPE plastic (0.02 mm, 0.03 mm, 0.04 mm, 0.05 mm, 0.06 mm). Observations were carried out once every 3 days and each treatment was repeated 3 times at a storage temperature of 100 ± 20C for 18 days of the study. The parameters in this study are weight loss, water content, color, texture, level of freshness, and aroma. The results of the analysis of variance showed that the treatment of size level of LDPE plastic as a celery packaging material had a very significant effect (P?0.01) on the research parameters. The best treatment was obtained from the size level of a low density polyethylene plastic size of 0.04 mm with a weight loss is 4.64%, a color is 18.97, a texture is 0.0455 N, a moisture content is 90.22%, a level of freshness is 4.87 and a scent is 5.00. The conclusion that size level of LDPE plastic is 0.04 mm can maintain the longest quality of celery among other size level for 18 days.

scholarly journals Influence of Dayak Onion Extract Concentration (Eleutherine palmi folia (L.) Merr) and Length Storage on Weight Decrease, Haugh Unit, and Albumen pH of Duck Egg

2020 ◽  
Vol 2 (3) ◽  
pp. 147-155
Author(s):  
Aam Gunawan ◽  
Muhammad Irwan Zakir ◽  
Siti Dharmawati ◽  
Muhammad Rasyidi
Keyword(s):  
Egg Weight ◽  
Onion Extract ◽  
Unit Value ◽  
Randomized Design ◽  
Two Factors ◽  
Duck Egg ◽  
Completely Randomized Design ◽  
Weight Decrease ◽  
And Storage ◽  
Haugh Unit

The purpose of this study was to study the effect of immersion on dayak onion extract and storage time and the interaction of these two factors on decreasing of egg weight, haugh unit value and albumen pH of duck egg. The study used a completely randomized design of factorial pattern 4 x 4 with 4 replications. The treatment is as follows: The first factor is the concentration of onion dayak extract (A), consisting of: A0 = Eggs storage placed at room temperature; A1 = 10% concentrated of dayak onion extract; A2 = 20% concentrated of dayak onion extract; A3 = 30% concentrated of dayak onion extract; The second factor is the length of storage (B) consists of: B0 = 7 days. B1 = 14 days. B2 = 21 days. And B3 = 28 days. Research data were analyzed using analysis of variance and continued by Tukey Test. The results showed that the concentration of dayak onion extract did not affect the reduction in egg weight, but did affect the haugh unit and albumen pH. Egg weight reduction ranged from 0.92-1.02. Haugh unit and pH of albumen at 10% and 30% concentration of dayak onion extract did not differ, while the 0% concentration differed from all other treatments. Interaction effects between concentration of dayak onion extract and length storage were also significant for egg weight loss, Haugh unit, and pH of albumen. It is recommended that for preserving duck eggs, it is better to use a concentration of 30% onion extract.

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