scholarly journals EFIKASI EKSTRAK BIJI JARAK PAGAR MORTALITAS LARVA PENGGULUNG DAUN (Lamposema indicate) PADA TANAMAN KEDELAI (Glycine max)

2020 ◽  
Vol 6 (1) ◽  
Author(s):  
Chairudin Chairudin ◽  
Sumeinika Fitria Lizmah ◽  
Rol Mahdi
Keyword(s):  
Glycine Max ◽  
Seed Extract ◽  
High Concentration ◽  
Leaf Roller ◽  
Randomized Design ◽  
Soybean Leaf ◽  
Completely Randomized Design ◽  
Soybean Plants ◽  
Soybean Leaves ◽  
Experimental Garden

Soybean leaf roller known as Lamposema indicata. These insects attack the leaves of soybean plants by rolling up soybean leaves, that are launched 3-4 weeks after planting. The research aims to find out application of Jathropha curcas extract againts the mortality of soybean leaf roller pest (Lamposema indicata) and reduce damage to soybean plants. This research was conducted in the experimental garden, Faculty of Agriculture, Teuku Umar University in October to November 2019. The research was arranged in a non factorial Completely Randomized Design consisting of 4 levels with 5 replications. The factors experience is Jathropha curcas seed extract concentrate are E1 (control), E1 (20%, E2 (13.3% and E3 (10%). The results shows Lamprosema mortality shows the highest found in the E3 regulation, this is because in the E3 setting it has a high concentration so that the composition of the poisons contained is also high. Castor seed extract (Jatropha curcas) contains the composition of phorbol ester and cursin. Based on the observations displayed during the observation, namely changes in behavior, slowing movement of larvae, discoloration from clear green to pale yellow and compacting of the larva's body cavity.Keywords: Effectiveness of concentration, mortality, leafworm caterpillars

Pengaruh Penambahan Air pada Pengolahan Susu Kedelai

2015 ◽  
Vol 4 (1) ◽  
pp. 8-13
Author(s):  
Priscillia Picauly ◽  
Josefina Talahatu ◽  
Meitycorfrida Mailoa
Keyword(s):  
Glycine Max ◽  
Physical Properties ◽  
Sweet Taste ◽  
Soya Milk ◽  
Randomized Design ◽  
Soybean Extract ◽  
Glycine Max L ◽  
Completely Randomized Design ◽  
Water Ratio

Soybean (Glycine max (L) Merr) is needed as an alternative diversification in order to increase protein consumption. Soybean can be processed into variety of foods and drinks. The most popular drink from soybean is soya milk which is made from soybean extract yielded from the addition of water. The amount of water added determine the quality of soya milk due to its effect on the chemical and physical properties of soya milk. This research was intended to find out the proper ratio of soybean and water in the processing of soya milk to yield the best quality. A completely randomized design was used with eight treatments of soybean and water ratio as follows, ratio of 1 : 6, ratio of 1 : 8, ratio of 1 : 10, ratio of 1 : 12, ratio of 1 : 14, ratio of 1 : 16, ratio of 1 : 18 and ratio of 1 : 20. Result showed the soybean and water ratio 1 : 10 in the processing of soya milk yielded milk having good quality according to its chemical with protein content of 2.53%, fat of 1.20%, sugar total of 1.60%, pH of 7.1, and organoleptic characteristies of both somewhat sweet taste and viscous texture.

scholarly journals Seed treatment for management of Meloidogyne javanica in soybean

2017 ◽  
Vol 38 (5) ◽  
pp. 2995 ◽  
Author(s):  
Adriely Alves de Almeida ◽  
Vinicius Hicaro Frederico Abe ◽  
Ricardo Marcelo Gonçalves ◽  
Maria Isabel Balbi-Peña ◽  
Débora Cristina Santiago
Keyword(s):  
Seed Treatment ◽  
Meloidogyne Javanica ◽  
Vitro Assay ◽  
Juvenile Mortality ◽  
Second Stage ◽  
Final Population ◽  
Randomized Design ◽  
Completely Randomized Design ◽  
Soybean Plants

The objective of this study was to evaluate the efficacy of the active ingredient abamectin, either in isolation or in combination with fungicides and insecticides formulated for the industrial seed treatment, on the population of Meloidogyne javanica, tested under greenhouse and in vitro conditions. In both tests, the combination of the following treatments was assessed: abamectin; thiamethoxam; fludioxonil + metalaxyl-M + thiabendazole. Water was used as control for the in vitro assay, whereas under greenhouse conditions, controls were inoculated and not inoculated with M. javanica. The tests were conducted in a completely randomized design with six (in vitro) and ten (greenhouse) replicates. For in vitro studies the effect on hatching, motility, and mortality of juveniles of M. javanica was evaluated. Under greenhouse conditions, the soybean ‘BRS 133’ seeds were treated, and at 15, 30, and 60 days after inoculation (DAI) with M. javanica, plant measurements were recorded. The penetration of second stage juveniles (J2) was also evaluated at 15 DAI. At 30 DAI, galls, egg masses, nematodes/g of root, and final population were evaluated. At 60 DAI, the final population of nematodes in the roots was quantified. The treatments containing abamectin were the most effective in diminishing the hatching of juveniles. All treatments had an effect on nematode motility when compared to the control, and in the treatment containing only abamectin, total juvenile mortality was observed. In greenhouse conditions, at 15 DAI, the treated soybean plants had the highest root mass and shoot length, differing statistically from the inoculated control. All treatments reduced the number of nematodes per gram of root, differing from the control. At 30 DAI, treatment efficiency was observed in reducing the final population of M. javanica, particularly the treatments using abamectin, and abamectin + thiamethoxam + fludioxonil + metalaxyl-M + thiabendazole. However, at 60 DAI, the effect of the treatments on the population of M. javanica did not persist.

scholarly journals Effect of aqueous neem seed extract via irrigation on larvae of Liriomyza sativae in melon crop

2018 ◽  
Vol 36 (3) ◽  
pp. 353-356 ◽  
Author(s):  
Ewerton M Costa ◽  
Francisco EL Silva ◽  
Elton L Araujo
Keyword(s):  
Larval Mortality ◽  
Total Mortality ◽  
Seed Extract ◽  
Neem Seed ◽  
Liriomyza Sativae ◽  
Randomized Design ◽  
Soil Irrigation ◽  
Completely Randomized Design ◽  
Pupal Mortality ◽  
Neem Seed Extract

ABSTRACT The leafminer [Liriomyza sativae (Diptera: Agromyzidae)] is one of the main pests of melon crop (Cucumis melo) in the states of Rio Grande do Norte and Ceará. Thus, adopting strategies to control this destructive insect is essential. The aim of this study was to evaluate the effect of aqueous neem seed extract, applied to soil via irrigation, on leafminer larvae, in the melon crop. An experiment was conducted in greenhouse, in completely randomized design, consisting of five treatments (four doses of aqueous neem seed extract: 1; 3; 5 and 10 g/100 mL) and the control consisting only of distilled water and 10 replicates (melon plants). The treatments were applied in a single dose, via soil irrigation. In the first stage of the evaluation, 24 hours after application, the number of dead larvae per plant was counted. In the second step, pupal mortality was recorded. The total mortality was also calculated considering the number of larvae and the number of emerged adults. We verified that, increasing the concentration of aqueous neem seed extract, an increase in the larval and pupal mortality of the leafminer in melon crop was noticed. The concentration 10 g/100 mL presented the best results, resulting in 36.4% of larval mortality, 96.5% of pupal mortality and 96.8% of total mortality.

scholarly journals Competitiveness of alexandergrass or Bengal dayflower with soybean

2010 ◽  
Vol 28 (3) ◽  
pp. 515-522 ◽  
Author(s):  
A.C.R. Dias ◽  
S.J.P. Carvalho ◽  
L.W. Marcolini ◽  
M.S.C. Melo ◽  
P.J. Christoffoleti
Keyword(s):  
Competitive Ability ◽  
Dry Mass ◽  
Total Density ◽  
Weed Species ◽  
Replacement Series ◽  
Commelina Benghalensis ◽  
Randomized Design ◽  
Full Flowering ◽  
Completely Randomized Design ◽  
Soybean Plants

Weeds compete with field crops mainly for water, light and nutrients, and the degree of competition is affected by the weed density and the intrinsic competitive ability of each plant species in coexistence. The objective of this research was to compare the competitiveness of alexandergrass (Brachiaria plantaginea) or Bengal dayflower (Commelina benghalensis) in coexistence with soybean, cv. M-Soy 8045. A factorial experiment (2 x 5) with two weed species and five competition proportions was carried out in a completely randomized design with four replicates. Proportions were based on a replacement series competition design, always maintaining the total density of four plants per 10 L plastic pots, which corresponded to 60 plants m ². The weed-crop proportions were: 0:4; 1:3; 2:2; 3:1; 4:0; that corresponded to the proportion of 100, 75, 50, 25 and 0% of soybean plants and the opposite for weeds, B. plantaginea or C. benghalensis plants. Leaf area, shoot dry mass of the weeds and soybean and number of soybean trifoliate leaves were evaluated when the soybean reached the phenologic stage of full flowering. B. plantaginea was a better competitor than soybean plants. Otherwise, C. benghalensis revealed a similar competitive ability that of the soybean. In both cases, there were evidences that intraspecific competition was more important.

scholarly journals Bulk soybean grain mass temperature in warehouses with isolated vents and vent-exhaust combined systems

2017 ◽  
Vol 47 (1) ◽  
Author(s):  
Eliza Rigoni de Pontes ◽  
Pedro Henrique Weirich Neto ◽  
Altair Justino ◽  
Carlos Hugo Rocha ◽  
Luiz Cláudio Garcia
Keyword(s):  
Glycine Max ◽  
Environmental Temperature ◽  
Mass Temperature ◽  
Environmental Humidity ◽  
Randomized Design ◽  
Environment Temperature ◽  
Temperature And Humidity ◽  
Completely Randomized Design

ABSTRACT: This study aimed to compare the temperatures in the mass of bulk soybeans ( Glycine max ) in warehouses with isolated vents and vent-combined exhaustion. A completely randomized design was used, with two treatments and ten repetitions. Treatments consisted of warehouse with curved vents and warehouse with curved + static exhaust vents. Each repetition contained the average of all readings in three days in all cables of the warehouse part under study, totaling 10 repetitions per month. The variable analyzed was the temperature in the grain mass in the lower, middle and upper parts of the warehouse from January to May 2012. The environment temperature and humidity were also registered. Static hoods, along with curved vents on the roof of the warehouse showed a tendency to reduce the temperature of the soybean mass with decrease in environmental temperature and increase in relative environmental humidity.

scholarly journals The different response of sugarcane genotypes in multiple stress

2018 ◽  
Vol 42 (5) ◽  
pp. 527-539
Author(s):  
Francisco Bruno Ferreira de Sousa ◽  
Jairo Osvaldo Cazetta ◽  
Sabrina da Silva Nascimento
Keyword(s):  
Nutrient Solution ◽  
Mineral Nutrients ◽  
High Concentration ◽  
Greenhouse Condition ◽  
Tolerance Level ◽  
Productivity Losses ◽  
Randomized Design ◽  
Completely Randomized Design ◽  
Different Response ◽  
Complete Nutrient Solution

ABSTRACT Research focused on identify abiotic stress-tolerant genotypes is highly desirable since their use may reduce costs of soil and crop management and productivity losses. The aim of this study was to determine the behavior of 24 sugarcane genotypes under high levels of Al3+ and Mn2+ associated with low availability of mineral nutrients. The experiment was carried out under greenhouse condition in a 24 × 2 factorial scheme (24 genotypes × 2 treatments: with and without stress), and four replications in completely randomized design. In the treatment without stress plants were grown in a complete nutrient solution whereas in the treatment with stress a nutrient solution with a high acidity (4.0 ± 0.1) and 5% of its original concentration, as well as a high concentration of aluminum (60 mg L-1) and manganese (700 mg L-1) was used. The genotypes RB966928, RB855443, IACSP96-3060, SP81-3250, RB867515, CTC 21, RB965902, and IAC91-1099 had their biometric characteristics less affected by the stress, possibly due to the ability to continue the process of cell division and elongation and to maintain meristematic viable regions, hence they were considered as the most tolerant. On the other hand, the genotypes RB965917, CTC 15, CTC17, RB855536, CTC 2, CTC 20, and CTC99-1906 were the most sensitive to stress. Root system was the most affected by stress, with most genotypes showing more than 70% reduction in root biomass. No relationship was observed between tolerance level of genotypes and the maturation cycles.

scholarly journals PENGATURAN PEMBUNGAAN TANAMAN JAMBU BIJI (Psidium guajava L.) ‘KRISTAL’ MELALUI APLIKASI WAKTU STRANGULASI YANG BERBEDA

2020 ◽  
Vol 22 (3) ◽  
pp. 243
Author(s):  
RA Diana Widyastuti ◽  
Slamet Susanto ◽  
Maya Melati ◽  
Ani Kurniawati
Keyword(s):  
Psidium Guajava ◽  
Single Factor ◽  
Flowering Induction ◽  
Flowering Response ◽  
Randomized Design ◽  
Completely Randomized Design ◽  
Leaf N Content ◽  
The Relationship ◽  
Experimental Garden ◽  
Leaf N

<p align="center"><strong>ABSTRACT</strong></p><p align="center"><strong><em> </em></strong></p><p><strong><em>Arrangement of Guava Flowering </em></strong><strong><em>(Psidium</em></strong><strong><em> g</em></strong><strong><em>uajava</em></strong><strong><em> </em></strong><strong><em>L.</em></strong><strong><em>)</em></strong><strong><em> ‘Krystal’ through the Application of Different Strangulation Times. </em></strong>The seasonal production of guava (<em>Psidium guajava</em>) requires flowering manipulation technique such strangulation in order to be available throughout the years. This study aimed to explain the relationship between strangulation time, the period of flowering and harvesting of guava cv 'Krystal'. The experiment was conducted from February to December 2017, in Cikabayan experimental garden of IPB University, Bogor, Indonesia. The experiment used a completely randomized design with single factor, i.e strangulation times that consisted of control (no strangulation), strangulation in March, in April and in May. The results showed that strangulation treatment was able to accelerate the emergence of flowers and increase the number of generative shoots, the number of flowers per tree and the number of fruits harvested. The increase of flowering response on strangulated trees was supported by a higher leaf C/N compared to control, which is related to the low leaf N content in strangulation treatments. The strangulation treatment could accelerate the time of flower emergence six days earlier than control.<em>  </em><strong><em></em></strong></p><p><strong>Key</strong><strong>word<em>s</em></strong>: <em>guava, </em><em>C/N, flowering induction, ringing, seasonal production</em><strong><em></em></strong></p><p align="center"><strong> </strong></p><p align="center"><strong>ABSTRAK</strong></p><p align="center"><strong> </strong></p><p>Produksi buah jambu biji (<em>Psidium guajava</em>) yang bersifat musiman memerlukan teknik pengaturan pembungaan agar dapat tersedia sepanjang tahun. Penelitian ini bertujuan untuk menjelaskan keterkaitan antara waktu strangulasi dengan pola pembungaan dan panen buah jambu biji ‘Kristal’. Percobaan dilaksanakan mulai Februari sampai Desember 2017, di Kebun Percobaan Cikabayan IPB Bogor. Rancangan yang digunakan adalah Rancangan Acak Lengkap (RAL) dengan faktor tunggal yaitu waktu strangulasi yang terdiri dari 4 (empat) taraf, yakni tanpa strangulasi, strangulasi bulan Maret, strangulasi bulan April dan strangulasi bulan Mei. Hasil penelitian menunjukkan bahwa perlakuan strangulasi mampu mempercepat munculnya bunga dan meningkatkan jumlah tunas generatif, jumlah bunga per pohon, jumlah bakal buah per pohon dan jumlah buah yang dipanen. Peningkatan respon pembungaan akibat strangulasi didukung oleh C/N daun yang lebih tinggi dibandingkan tanpa stangulasi, yang berhubungan dengan rendahnya kandungan nitrogen daun pada perlakuan strangulasi. Perlakuan strangulasi mampu mempercepat waktu muncul bunga 6 hari lebih cepat dibandingkan tanpa strangulasi.</p><p><strong>Kata </strong><strong>k</strong><strong>unci: </strong>jambu biji, C/N, induksi pembungaan, pencekikan batang, produksi musiman</p>

scholarly journals PEMBERIAN PUPUK KASCING DAN POC NASA PADA PERTUMBUHAN DAN PRODUKSI BAWANG MERAH (Allium ascalonicum L.)

2020 ◽  
Vol 34 (3) ◽  
pp. 255-264
Author(s):  
Eni Farida ◽  
Saripah Ulpah ◽  
T. Edy Sabli
Keyword(s):  
Weight Loss ◽  
Plant Height ◽  
Observation Data ◽  
Tuber Weight ◽  
Randomized Design ◽  
Completely Randomized Design ◽  
Tuber Weight Loss ◽  
Experimental Garden

ABSTRACT The purpose of this study was to determine the effect of applying vermicompost fertilizer and POC Nasa on the growth and production of shallots (Allium ascalonicum L.). This research has been carried out in the Experimental Garden of the Faculty of Agriculture, Riau Islamic University for 4 months, starting from July to October 2018. The design used in this study was a factorial Completely Randomized Design consisting of 2 factors. The first factor is vermicompost fertilizer (K) which consists of 4 levels namely 0, 200, 400, 600 g / plot and the second factor is POC Nasa (P) consisting of 4 levels namely 0, 2, 4, 6 cc / l water. The parameters observed in this study were plant height, harvest age, number of tubers per clump, wet tuber weight per sample, dry tuber weight per sample, tuber weight loss. The last observation data were statistically analyzed and continued with a BNJ follow-up test at the 5% level. The results showed that the application of vermicompost fertilizer and poc nasa interaction significantly affected the parameters of plant height, age of harvest, the number of tubers per clump, dry tuber weight per sample, shrinkage of tuber weight, and the application of vermicompost fertilizer and poc nasa interactively had no significant effect on wet tuber weight parameters per sample with the best treatment is a concentration of 600 g / plot (K3) and 6 cc / water (P3) is a dose of 44.80 grams/plot. Keywords: POC, Kascing, Shallot

scholarly journals Efikasi Pestisida Hayati Pada Padi Varietas Tahan Tungro

2020 ◽  
Vol 5 (1) ◽  
pp. 30-38
Author(s):  
Arif Muazam ◽  
Nurkholish Nugroho
Keyword(s):  
Population Density ◽  
Active Role ◽  
Rice Crop ◽  
Disease Research ◽  
South Sulawesi ◽  
Randomized Design ◽  
Self Sufficiency ◽  
Completely Randomized Design ◽  
Predatory Insects ◽  
Experimental Garden

Sidrap as a rice granary center in South Sulawesi, plays an active role in efforts to self-sufficiency in eastern Indonesian food in particular and NKRI in general. The efforts of integrated rice cultivation have been carried out as an effort to achieve national food independence. This paper discusses the population density of green leafhoppers, predatory insects, and other pests in the Inpari 36 rice crop as tungro (new released) varieties in endangered areas, the study was carried out in the experimental garden area of Tungro Disease Research, using a Completely Randomized Design (CRD) 2 plot plots of plant varieties of 10 x 10 m2 with 4 replications. The most common adult green leafhopper (Nephotetic verescens) results in Inpari 36 varieties without bioprotector treatment. Natural predators that were fluctuated every week were dominant observations, namely: Agriocnemis spp, Micraspis sp, Conocephalus longipennis, Araenus inustus, Lycosa pseudoannulata, Oxyopes javanacus, and Tetraghenata maxilosa. While at 6-7 MST (weeks after planting) Ophionea nigrofasciata species appeared and in 7MST there were species of Anaxipa longipennis.

scholarly journals PERTUMBUHAN SETEK KRISAN (Chrysanthemum sp.) PADA BERBAGAI KONSENTRASI HORMON IBA (Indole Butyric Acid) DI BANGKA DENGAN SISTEM EX-VITRO

2020 ◽  
Vol 3 (1) ◽  
pp. 589-602
Author(s):  
Anggri Restikadia ◽  
Keyword(s):  
Experimental Method ◽  
Butyric Acid ◽  
Research Method ◽  
Ex Vitro ◽  
Indole Butyric Acid ◽  
Randomized Design ◽  
Flower Plant ◽  
Minimum Potential ◽  
Completely Randomized Design ◽  
Experimental Garden

Chrysanthemum is an ornamental flower plant that has advantage because of various colors and has long vase time. The minimum potential for chrysanthemum development in Bangka is because of limited seed and the enviroment conditions in Bangka are less than optimal for chrysanthemum plants. The increasing chrysanthemum seedlings can be done vegetatively by addition of IBA hormone with an ex-vitro system. This study aims to determine the effect of IBA (Indole Butyric Acid) hormone on the growth of chrysanthemum cuttings in Bangka. This research was conducted from March to May 2020 at the Research and experimental Garden, Faculty of Agriculture, Fisheries and Biology, Universitas Bangka Belitung. The research method used an experimental method with a single completely randomized design (CRD) consisting of 6 treatments, namely (Control), IBA 50 ppm, IBA 100 ppm, IBA 150 ppm, IBA 200 ppm, IBA 250 ppm. The results showed that giving IBA had no significant effect on the growth of chrysanthemum cuttings in Bangka. Treatment (IBA 150 ppm) tends to be better for the growth of chrysanthemum cuttings in Bangka.

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