scholarly journals Mortalitas Sitophilus oryzae L. pada Beras Suluttan Unsrat, Ketan Putih, dan Beras Merah di Sulawesi Utara (Mortality of Sitophilus oryzae L. in Suluttan Unsrat, white glutinous, and brown rice in North Sulawesi)

2016 ◽  
Vol 6 (1) ◽  
Author(s):  
Stevani B. Fara ◽  
J. Pelealu ◽  
J. M. E. Mamahit

Abstrak Penelitian ini dilakukan dengan tujuan untuk menentukan persentase mortalitas imago Sitophilus oryzae pada tiga jenis beras. Penelitian menggunakan Rancangan Acak Lengkap (RAL) dengan 3 perlakuan dan 6 ulangan. Tiga macam beras yang digunakan adalah Suluttan Unsrat 2, ketan putih, dan beras merah. Hasil penelitian menunjukkan bahwa persentase mortalitas imago S. oryzae pada Beras Suluttan 24,68%, Beras Ketan 6,38% dan Beras Merah 2,09%.Kata kunci: beras, mortalitas, Sitophilus oryzae  Abstract This research was conducted to determine the mortality percentage of adult Sitophilus oryzae on three types of rice. The Completely Randomized Design experiment consisted of 3 treatments and 6 replication. Three types of rice, i.e. Suluttan Unsrat 2, white glutinous, and brown rice were used in this experiment. The results showed that the mortality percentage of adult S. oryzae in Suluttan Unsrat, white glutinous, and brown rice were 24.68, 6.38 and 2.09%, respectively. Keywords: mortality, rice, S. oryzae

2020 ◽  
Vol 6 (2) ◽  
pp. 38-43
Author(s):  
Riza Adrianoor Saputra ◽  
Noor Khamidah

Rice is the staple food of the Indonesian population. Siam Mutiara is the preferred local variety of rice in South Kalimantan. Sufficient rice availability must be supported by a rice surplus as food reserves.The main problem with rice storage is the emergence of Sitophilus oryzae L. Therefore it is necessary to control the pest. Non-toxic botanical pesticides can be applied to control S. oryzae. This study aimed to determine the effect of the application of several types of rhizome flour on the mortality rate of S. oryzae, population development of S. oryzae, and weight of Siam Mutiara rice to obtain the most effective rhizome flour. The research was conducted in March 2020 - August 2020 at the Agroecotechnology Production Laboratory, Faculty of Agriculture, Lambung Mangkurat University. The one-factor Completely Randomized Design method (CRD) was used by treating z0 (control/without rhizome powder), z1 (red galangal rhizome powder), z2 (kencur rhizome powder), z3 (red ginger rhizome powder), and z4 (rhizome powder combination). The treatment was repeated 4 times so that there were 20 experimental units. The results showed that the application of red galanus rhizome powder, sling rhizome powder, red ginger rhizome powder, and rhizome powder combination was able to control the population development of S. oryzae and weight damage of Siam Mutiara rice due to S. oryzae pests. The rhizome powder that was most effective in controlling S. oryzae was z1 (red galangal rhizome powder) with a mortality percentage of 32.50%, population of 7 individuals, and rice weight of 99.96%; z2 (kencur rhizome powder) with a mortality percentage of 65%, population of 3 individuals, and rice weight of 99.97%; z3 (red ginger rhizome powder) with a mortality percentage of 62.50, population of 4 individuals, and rice weight of 99.96%; and z4 (rhizome powder combination) with a mortality percentage of 47.50%, population of 5 individuals, and rice weight of 99.95%.


Author(s):  
D. R. Paradva ◽  
M. J. Patel ◽  
H. L. Kacha

Aims: To study the post harvest shooting namely; control, humic acid 2%, 2, 4-D 30 mg/l, gibberellic acid (GA3) 100 mg/l, CPPU 4 mg/l and sulphate of potash (SOP) 2% and covering materials viz., non- woven material bag and blue colour polyethylene sleeve (6% perforated) bag on bunch of banana cv. Willium Study Design: Experiment was laid out in a Completely Randomized Design (Factorial) with three repetitions. Place and Duration of Study: Experiment was carried out at the Horticultural Research Farm,Department of Horticulture, B. A. College of Agriculture,  AAU, Anand during the year 2017-18 and 2018-19 Methodology: The experimental plot was prepared by deep ploughing, harrowing and levelling. The pits of 30 x 30 x 30 cm were dug out at a spacing of 1.8 x 1.8 m2 and well decomposed fine textured Farm Yard Manure (FYM) at the rate of 10 kg per pit was applied at planting. Well hardened, healthy, uniform tissue cultured tissue culture plants of willium banana having 5-6 leaves were used for planting. Post shooting sprays were given twice i.e. 1st spray after complete opening of inflorescence and 2nd spray after 30 days of first spray with covering the bunch immediately after second spray.The fruits which were used for recording the weight loss during ripening, were used to calculating pulp: peel ratio. Pulp to peel ratio was calculated by dividing respective pulp weight by respective peel weight. The TSS value of the fruit was recorded by using hand refractometer having range of 0-32 ⁰Brix. Acidity (%) was calculated by the method described by Rangana (1977) was adopted for estimation of titrable acidity. Results: The results revealed that the banana bunches sprayingof CPPU 4 mg/lwith bunch covering with non woven materials were recorded significantly lower physiological loss in weight (12.80, 13.60 and 13.20%) and (13.26, 14.14 and 13.70%), respectively. Whereas, post shooting spray of SOP 2% with non-woven material bag coveringwere recorded significantly maximum TSS (21.42, 21.05 and 21.17 ºBrix; 21.39, 20.93 and 21.16 ºBrix), reducing sugar (12.55, 12.34 and 12.45%; 12.21, 12.16 and 12.18%) and total sugar (21.42, 20.82 and 21.12%; 20.84, 20.50 and 20.67%) as compared to rest of the treatments of post shooting sprays and bunch covering materials on banana quality. Conclusion: From the two years of field study, it can be concluded that the post shooting spraying of CPPU 4 mg/l and SOP 2% with non woven bunch covering bags were improve fruit quality of banana.


2018 ◽  
Vol 10 (9) ◽  
pp. 225 ◽  
Author(s):  
Agda M. F. de Oliveira ◽  
Railene H. C. Rocha ◽  
Welligthon A. Guedes ◽  
George A. Dias ◽  
José F. de Lima ◽  
...  

The use of natural products as coatings to preserve the fruit quality during storage is an important step to maintain food safety for consumer health. The use of microalgae in coatings, therefore, may be promising in the preservation of mango. The present work had the objective to evaluate the effect of coatings based on Chlorella sp. on the postharvest preservation of ‘Tommy Atkins’ mango during storage at room temperature (23 °C). We carried out a completely randomized design experiment consisting of 0%, 1%, 2%, 3% and 4% of Chlorella sp., using 10 fruits per treatment (n = 10). Analyzing the L*, a* and, b* indices, in the peel and the pulp of the mango fruit, we observed a delay in the ripening with the increase of the biofilm concentration. The firmness of the pulp and maintenance of the organic acids of the fruits were higher in the treatments with a large amount of Chlorella sp. The use of biofilm with Chlorella sp. at 2% preserved the quality of ‘Tommy Atkins’ mango until ten days of storage, at 23 °C and 42% RH.


Author(s):  
Rusli Rustam ◽  
Agus Sutikno ◽  
Jamiatul Laila

Rice is one of serealea comodity that susceptible with pest storage. One of the pest that often attack the rice in storage is Sitophilus oryzae L. The alternative for control S. oryzae L. as fumigant which enviromentally sound is Gliricidia sepium Jacq. as organic insecticide. This research aims to get the best dose G. sepium Jacq. leaf powder to control S. oryzae L. pest in rice storage. This research conducted at Laboratory of Plant Pest, Faculty of Agriculture, University of Riau, Pekan baru from Mei until Juni 2016. This research arranged experimentally by using Completely Randomized Design consisting of 5 treatments and 4 replications. The treatment consist of 5 dose levels were 0 g/100 g rice, 2 g/100 g rice, 4 g/100 g rice, 6 g/100 g rice and 8 g/100 g rice. The result showed that giving of G. sepium Jacq. leaf powder with dose 8 g/100 g rice causes time of death beginningS. oryzae L. during 31.50 hours after application, lethal time 50 during 282.8 hours after application, total mortality was 70%, amount of generation was 9,75 beetles and  decrease of seed weight’s rice was 1.08%.


2019 ◽  
Vol 6 (3) ◽  
Author(s):  
Noviani ◽  
Yunilas ◽  
Ma’ruf Tafsin

The study aims to evaluated the value of dry matter and organic matter digestibility of feed containing corn cob fermented by MOIYL on local rabbit. Research conducted at Desa Bandar Klippa Deli Serdang, North Sumatera Province, in January – March 2018. The study used 20 local rabbit with initial weight 404,4 gram ± 9,14 and design experiment used completely randomized design (CDR), which consists of 4 treatments and five replications. The treatment consisted of ration P0= unfermented ,P1=10%, P2= 20, and P3= 30%. Variable measured were consumption of dry matter and organic matter, digestibility of dry matter and organic matter. The Results showed that fermented of corn cob with probiotics MOIYL provide a significant effect (P<0,01) increasing corn cob fermented by MOIYL to the level 30% increase dry matter and organic matter digestibility. The conclusion of this study is corn cob fermantation by probiotics MOIYL till the level 30% can increase the digestibility of dry matter and organic matter on local rabbit.


Jurnal MIPA ◽  
2019 ◽  
Vol 8 (2) ◽  
pp. 51
Author(s):  
Fitria Tjolleng ◽  
Parluhutan Siahaan ◽  
Nio Song Ai

Penelitian ini bertujuan untuk mengkaji respon fisiologi tanaman padi lokal Sulawesi Utara (varietas Ombong, Temo, TB, dan Sultan) terhadap cekaman banjir pada fase vegetatif berdasarkan kandungan klorofil total pada daun. Pot dan tanaman padi dimasukkan ke dalam ember sehingga terendam setinggi 27 cm di atas permukaan media. Perlakuan cekaman kebanjiran berlangsung selama 20 hari. Pengambilan data dilakukan pada hari ke-0 (sebelum perlakuan), 10, 15 dan 20 setelah perlakuan. Daun diambil sebanyak 1 g kemudian dihaluskan dan diekstraksi menggunakan alkohol 95% dan kandungan klorofil diukur dengan spektrofotometer. Data kandungan klorofil total dalam percobaan faktorial dianalisis dengan analisis sidik ragam dalam rancangan acak lengkap pada tingkat kepercayaan 95%. Hasil penelitian ini menunjukkan bahwa faktor varietas, faktor waktu dan interaksi antara keduanya tidak menunjukkan perbedaan yang nyata pada kandungan klorofil total pada daun tanaman padi (varietas Ombong, Temo, TB, dan Sultan) selama 20 hari perlakuan cekaman banjirThis study examined the physiological responses of North Sulawesi local rice plants in (Ombong, Temo, TB, and Sultan varieties) to partial submergence at the vegetative phase based on the content of total chlorophyll in the rice leaves. The pot and plants were submerged under water in a bucket about 27 cm above the surface of the media. The submergence treatment was lasted for 20 days. Data collection was carried out at day 0 (before treatment), 10, 15 and 20 after treatment. The leaves (about 1 g for ach sample) were collected, then refined and extracted using 95% ethanol. The total chlorophyll content was measured using spectrophotometer. Data of total chlorophyll content in the factorial experiment were analyzed using analysis of variance under completely randomized design at a 95% confidence level. The results of this study indicated that variety and time factors as well as their interactions showed no significant differences in the content of total chlorophyll in the leaves of rice plant varieties (Ombong, Temo, TB, and Sultan) during 20 days of partial submergence


2019 ◽  
Vol 88 (2) ◽  
pp. 183-195 ◽  
Author(s):  
Godfrey Omare Mauti ◽  
Peter F. Kasigwa ◽  
Joan J.E. Munissi ◽  
Justus M. Onguso

Abstract Dioscorea sansibarensis bulbils are well known for their toxicity and medicinal applications. In this study, the attraction and mortality of the Phaseolus vulgaris weevil (Bruchus chinensis) caused by Dioscorea sansibarensis bulbil oil was examined in a Completely Randomized Design experiment using a Y-tube olfactometer on a laboratory bench. Statistical analysis at P < 0.05 showed 10 µL had an attraction of 42.67%. In the case of mortality, the results showed that Phaseolus vulgaris seeds treated with 40 µL of the bulbil oil had a harmonic mean of 55.8% mortality of the weevil population, which was higher than with 10 µL of Actellic 50 EC. GC-MS analysis identified 17 compounds in the bulbil oil, the main constituents of which were 2- pentanone, 4-hydroxy-4-methyl- (17.8%), phenol, 4-ethyl- (11.41%), hexadecanoic acid, methyl ester (11.05%), phenol (7.35%), 9-octadecenoic acid, (E)- (7.2%) and phenol, 4-ethyl-2-methoxy- (7.14%). Attraction by bulbil oil may have been due to the presence of phenolic compounds, and mortality may have been due to hexadecanoic acid, methyl ester and 9-octadecenoic acid, (E)-. Attractants are used for the surveillance and detection of an infestation in stored products. The added advantage of the bulbil oil to cause mortality makes Dioscorea sansibarensis bulbil oil useful in the formulation of a botanical pesticide in stored pest management.


EUGENIA ◽  
2015 ◽  
Vol 21 (3) ◽  
Author(s):  
Selviana M.I. Tigauw ◽  
Ch. L. Salaki ◽  
J. Manueke

ABSTRACT   The research was conducted in the village of Mapanget, Mapanget West District of Manado City for five months from February to June 2015. This study used a factorial design in a completely randomized design (CRD) with two factors was garlic ekstrak and tobacco and repeated for three times. The result showed that each kind of  extracts garlic, tobacco and the combination of the two (synergistic) have the potential as the bioinsecticides against leaf aphids (Myzus persicae Sulz.). For a single factor, the average percentage of the highest mortality of each extracts was garlic extract on concentration’s treatment 60% with 72,33% of death rate, tobacco extract on concentration’s treatment 60% with 76,33% of death rate of leaf aphids. As for the combination between garlic extract and tobacco extract, from 25 combinations that have been applied, there are 13 concentrations which effective to known as a bioinsecticide that have capability to caused mortality above 50% with the highest mortality percentage on 60%:60%  treatment which had 91,7% average of death rate. Keywords : effectiveness, bioinsecticides, Myzus persicae


Acta Iguazu ◽  
2020 ◽  
Vol 9 (1) ◽  
pp. 108-112
Author(s):  
Tiago Roque Benetoli da Silva ◽  
Rhaizza Lana Pereira Ducheski ◽  
Gessica Daiane da Silva ◽  
Lucas Ambrosano ◽  
Affonso Celso Gonçalves-Jr ◽  
...  

Chia (Salvia hispanicaL.) is an annual herbaceous plant considered as natural omega-3 fatty acids source. To quantify this oil in seeds, a time-consuming method involving financial costs with chemical reagents is used. The objective of this work was verifying existence of correlation between the quantification of oil in chia seeds by means of the Soxhlet method with the ash mass of these seeds obtained by calcination in a muffle oven. For this, samples of chia seeds and the oil quantified by Soxhlet were collected. The same samples were calcined in ash. The simple correlation test was performed, obtaining linear regression. To method validation, a completely randomized design experiment was carried out. The treatments were to quantify the oil by the Soxhlet method and calcination in the muffle using the equation obtained. The objective was to verify the existence of correlation between the oil content of chia seeds, obtained by the Soxhlet method with ash content obtained after burning in the muffle and, therefore, the validation of this method of determination. There is a significant positive correlation between the oil content obtained by Soxhlet method and the ash mass of chia seed. By equation Y = -2.5319x + 16.518, it was noted that it is feasible to quantify the oil content


Jurnal Wasian ◽  
2017 ◽  
Vol 4 (1) ◽  
pp. 47
Author(s):  
Ady Suryawan

BPDAS Tondano has plan to rehabilitation of coastal area reached 10,000 hectares, thus requiring the seeds very much. Nyamplung has potential as a rehabilitation plant in coastal  and can support national needs in meeting the needs of biofuel. Nurseries nyamplung in North Sulawesi needs information how to handle the weaning of plant. Research using a completely randomized design with three treatment factors, namely 1). Cutting the leaves consist of two levels ie D1 (dauan left pair) and D2 (leaf still intact); 2) Cutting seeds that stick consists of two levels ie B1 (seeds removed) and B2 (seeds still attached ); and 3) Cutting the length roots consist of three levels ie A1 (5 cm), A2 (10 cm) and A3 (15 cm). 180 seedling were taken from germination using cocopeat media. Results of variance analysis showed that the treatment applied only affect the heigth growth. The survivak rate is not affected by the treatment applied because survival rate reached 100%. The treatment leaves and seeds have a real effect, whereas the root treatment had no significant effect. The result of the highest growth is D2B2C3 ie : 5,8 cm and the lowest growth derived from D1B1C2 is only 1.43 cm.


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