PREFERENSI DAN KECEPATAN MAKAN DARI KEONG MAS TERHADAP TANAMAN PADI

2009 ◽  
Vol 4 (2) ◽  
Author(s):  
Suripto Suripto
Keyword(s):  
Natural Sciences ◽  
Ex Situ ◽  
Rice Plants ◽  
Randomized Design ◽  
Area North ◽  
Biology Laboratory

Abstrak: Penelitian ini bertujuan untuk mempelajari preferensi dan kecepatan makan dari berbagai usia keong mas terhadap berbagai kultivar dan umur tanaman padi. Keong mas dikoleksi dari daerah Tanjung Lombok Utara, dikembangbiakkan dan diaklimatisasi di Laboratorium Biologi FMIPA Universitas Mataram. Variasi usia keong mas yang digunakan untuk uji hayati adalah 1 bulan, 3 bulan dan 6 bulan. Tanaman padi yang digunakan adalah kultivar Cibogo, Cigeulis, dan Ciherang, masing-masing dengan umur 20, 30, dan 60 hari setelah tanam. Uji hayati preferensi dan aktivitas makan dari keong mas terhadap tanaman padi dilakukan secara ex situ menurut rancangan blok acak lengkap di Kebun Biologi Fakultas MIPA Universitas Mataram. Data diolah untuk menentukan tingkat keganasan dari keong mas menurut variasi usia dan kerentanan tanaman padi menurut variasi kultivar dan umurnya setelah tanam. Hasil menunjukkan, bahwa keong mas berusia enam bulan mempunyai kecepatan makan dua kali lipat dari keong mas umur tiga bulan dan empat kali lipat dari keong mas berumur satu bulan terhadap tanaman padi. Preferensi keong mas terhadap tanaman padi tidak dipengaruhi oleh variasi kultivar tanaman padi, akan tetapi lebih dipengaruhi oleh umur tanaman padi tersebut. Tanaman padi berumur 10 dan 20 hari setelah tanam masing-masing adalah delapan dan tujuh kali lipat lebih disukai dari tanaman padi berumur 60 hari setelah tanam.Kata-kata kunci: Keong mas, tanaman padi, kecepatan makan, preferensi. Abstract: The research was intended to evaluate preference and rate of eat away the rice plants (various cultivars and ages) of the golden snail (various live spans). The golden snails were collected in rice lands of Tanjung Area, North Lombok. Its were reared and acclimated in Biology Laboratory. The bioassay was carried out by block randomized design in accordance with ex situ in The Biology Garden, Faculty of Mathematics and Natural Sciences, University of Mataram. Investigations of preference and rate of eat away rice plants with various cultivars: Cibogo, Cigeulis, and Ciherang and ages: 20, 30, and  60 days by the golden snails with various live spans: 1, 3, and 6 months carried out by block randomized design in accordance with ex situ. Data pointed to describe life spans of voracious golden snails and   cultivars and ages of susceptible rice plants. The result saw that, preferences were not dependent on variation of paddy cultivars. The six months old - golden snails  had rate of eat away rice plants two fold than   the three months old - golden snail, and four fold than the a month old - golden snail. The rice plants 10 and 20 days old were given preference by golden snail eight and seven fold the rice plants 60 days old.Key words: Golden snails, preference, rate of eat away, and rice plants.

scholarly journals Analisis Efektifitas Tepung Jamur sebagai Larvasida Aedes aegypti

2012 ◽  
Vol 14 (1) ◽  
pp. 126
Author(s):  
Yekki Yasmin ◽  
Lenni Fitri ◽  
Betty Mauliya Bustam
Keyword(s):  
Aedes Aegypti ◽  
Beauveria Bassiana ◽  
Storage Time ◽  
Natural Sciences ◽  
The Other ◽  
Biology Department ◽  
Randomized Design ◽  
Two Factors ◽  
Result Show ◽  
Completely Randomized Design

This research is about effectivity analysis of two kinds of fungi i.e. Beauveria bassiana and Metharrizium anisopliae as Aedes aegyptilarvacide, it has been conducted at laboratories Zoology in Biology Department, Mathematics and Natural Sciences Faculty, Syiah KualaUniversity. Aims of this research were estimating maximum time storage of fungi powder as effective larvacide and the number of bacteriacolonies were found in water used for experiment. This research was used Completely Randomized Design (CRD). The experiments consistof two factors i.e kind and saving time of fungi. The result show that the longer the storage time of Beauveria bassiana the more ineffectiveit was as larvacide and the least fungi colonies were found. Metharrizium anisopliae on the other hand, the longer it was kept, the moreeffective it was as larvacide and the more fungi colonies were found.

scholarly journals Sources and doses of aluminum in experiments with rice in nutrient solution

2019 ◽  
Vol 23 (7) ◽  
pp. 511-517
Author(s):  
Lucas B. de Freitas ◽  
Dirceu M. Fernandes ◽  
Suelen C. M. Maia ◽  
Arianne Moniz ◽  
Beatriz G. Mazziero ◽  
...  
Keyword(s):  
Nutrient Solution ◽  
Aluminum Chloride ◽  
Aluminum Toxicity ◽  
Upland Rice ◽  
Dry Weight ◽  
Potassium Sulfate ◽  
Rice Plants ◽  
Randomized Design ◽  
Aluminum Activity ◽  
Aluminum Compounds

ABSTRACT The aluminum source to produce toxicity in upland rice in nutrient solution experiments is not yet well established, althought the aluminum potassium sulfate has been utilized source to produce aluminum toxicity. However, in recent studies have used aluminum chloride. The aim of this study was to evaluate the capacity of aluminum sources and doses to produce toxicity in upland rice plants grown in nutrient solution. The experiment was arranged in a block randomized design, in a 2 x 5 factorial scheme and four repetitions. The treatments were two aluminum sources (aluminum potassium sulfate - AlK(SO4)2.12H2O and aluminum chloride - AlCl3.6H2O) and five aluminum doses in nutrient solution (0, 370, 740, 1100 and 1480 μmol L-1). The experiment was conducted in a greenhouse in Botucatu city, São Paulo state, Brazil, starting in April 2012, and was carried out for 56 days from transplanting of the seedlings. Using aluminum chloride, the rice plants show lower production of root and total dry weight, area and root volume, medium and thick root length, potassium and sulfur contents and accumulations. Using aluminum potassium sulfate, there are lower aluminum activity and availability, besides the formation of large amount of aluminum compounds non-toxic to the plants (aluminum sulfate) in the nutrient solution. The aluminum doses between 1100 to 1480 µmol L-1, corresponding to aluminum activity of 336.8 to 429.0 µmol L-1 of aluminum chloride as source, are more effective to produce aluminum toxicity in upland rice plants grown in nutrient solution.

scholarly journals Aplikasi Kompos Limbah Sampah Pasar dengan Bioaktivator Larutan Keong Mas dan Trichoderma. Sp terhadap Tanah Bekas Tambang Batu Bara dengan Tanaman Uji Padi Gogo

2019 ◽  
Vol 2 (1) ◽  
pp. 38
Author(s):  
Roro Kesumaningwati ◽  
Nurul Puspita Sari Puspita Sari ◽  
Safryan William Purba
Keyword(s):  
Mining Area ◽  
Blast Disease ◽  
Dry Land ◽  
Rice Plants ◽  
Coal Mining Area ◽  
East Kalimantan ◽  
Randomized Design ◽  
Trichoderma Sp ◽  
Continuous Mining ◽  
Increase Productivity

East Kalimantan has a fairly extensive ex-coal mining area. Continuous mining activities cause severe land damage with a dramatically reduced nutrient. The application of organic farming can be one of the solutions to improve ex-mining land. One of the plants that can be applied is Situ Bagendit Rice. Rice Bagendit varieties are dry land rice which is resistant to pests and blast disease. The use of market waste, MOL golden snail, and Trichoderma. Sp as organic material can increase productivity in Bagendit rice plants there and be able to repair damage to ex-coal mine land. The aim of this study was to compare market waste, MOL golden snail and Trichoderma sp to Bagendite rice plant growth. This study used the RAL method (Completely Randomized Design) with 9 treatments and 3 replications. B0 control (soil without additives), B1 compost market waste and Trichoderma sp with a dose of 100 g/polybag, B2 market waste waste compost and MOL golden snail with a dose of 100 g/polybag, B3 compost market waste and Trichoderma sp with 200 g/polybag, B4 market waste compost and MOL golden snail with a dose of 200 g/polybag, B5 market waste compost and Trichoderma sp with a dose of 300 g/polybag, B6 market waste compost and MOL golden snail with a dose of 300 g/polybag, B7 market waste compost and Trichoderma sp with a dose of 400 g/polybag, B8 market waste compost and MOL golden snail with a dose of 400 g/polybag. The results showed that Trichoderma sp market waste compost fertilizer and golden snail market MOL waste compost each had a significant effect on the productivity of bagendite rice plants. In addition, MOL market golden snail waste compost with the best dosage of 400 g/polybag is able to produce harvested dry grain production of around 2.8 tons/ha.

scholarly journals DETECTION AND TRANSMISSION OF RICE STUNT VIRUS ON CIHERANG AND SITU BAGENDIT VARIETIES

2019 ◽  
Vol 18 (2) ◽  
pp. 169
Author(s):  
Selvi Helina ◽  
Sri Sulandari ◽  
Sedyo Hartono ◽  
Andi Trisyono
Keyword(s):  
Plant Height ◽  
Incubation Period ◽  
Rice Production ◽  
Rice Plants ◽  
Inhibition Of Growth ◽  
Randomized Design ◽  
Significant Difference ◽  
Number Of Leaves ◽  
Completely Randomized Design ◽  
Rice Ragged Stunt Virus

Detection and Transmission of  rice stunt virus on Ciherang and Situ Bagendit Varieties. The explosion of brown planthoppers recently has caused reduction of rice production in Indonesia. Brown planthoppers do not only act as pest, but also transmit Rice grassy stunt virus (RGSV) and Rice ragged stunt virus (RRSV). Detection of the existence of the two viruses in rice plants and vector insects is important to be done to ensure that the virus is infected with the vector. The aim of this research is to detect the existence of virus in varieties of Ciherang and Situ Bagendit as a result of transmission in the laboratory and to find out the ability of brown planthoppers to transmit stunt virus to both of the varieties. This research was compiled using Completely Randomized Design (CRD) with 4 treatments, namely healthy rice plants of Ciherang and Situ Bagendit varieties, Ciherang and Situ Bagendit varieties which were infested by brown planthoppers each with 5 repetitions. The parameters observed were incubation period, symptoms, plant height, number of leaves and incidence of disease. The data on plant height, number of leaves and incidence of disease were analyzed using ANOVA and continued with the Least Significant Difference (LSD) test at the level of 5%. The results showed that Ciherang and Situ Bagendit varieties were only positively infected by Rice ragged stunt virus. The results of the rice transmission showed that Ciherang variety had a faster incubation period of 10 DAI while Situ Bagendit was 14 DAI, but the two varieties showed an inhibition of growth in plant height and number of leaves compared to healthy plants with each incidence of 51.3% and 46.3%.

scholarly journals Soil reaction and absorption of silicon by rice

2007 ◽  
Vol 64 (2) ◽  
pp. 176-180 ◽  
Author(s):  
Mônica Sartori de Camargo ◽  
Hamilton Seron Pereira ◽  
Gaspar Henrique Korndörfer ◽  
Angélica Araújo Queiroz ◽  
Caroline Borges dos Reis
Keyword(s):  
Acetic Acid ◽  
Silicic Acid ◽  
Soil Ph ◽  
Total Content ◽  
Magnesium Silicate ◽  
Soil Reaction ◽  
Rice Plants ◽  
Randomized Design ◽  
Calcium And Magnesium ◽  
Soluble Silicon

The solubility and availability of silicon can be influenced by soil reaction. A pot experiment with a clayey textured Rhodic Acrustox was conducted under greenhouse conditions to evaluate the effect of soil reaction on silicon availability to rice plants. The experiment was set up in a completely randomized design, using a factorial scheme (4 x 4) with four materials (calcitic lime, calcium and magnesium silicate, pure silicic acid, and wollastonite), four rates (0, 2500, 5000 and 7500 mg per 5 kg-pot) and four replicates. After 60 days, dry matter yield and silicon absorption by the rice shoot plants, pH CaCl2, and soluble silicon (0.5 mol L-1 acetic acid and 0.01 mol L-1CaCl2) in the soil were evaluated. The materials increased soil pH as the applied rates increased, except silicic acid. Soluble silicon extracted by 0.5 mol L-1 acetic acid also increased with applied rates. For calcium chloride, soluble silicon increased in the soil only with wollastonite and calcium and magnesium silicate, agreeing with its total content. Silicon absorption by the above-ground part of the rice plants was linearly correlated with rates of wollastonite, followed by calcium and magnesium silicate, silicic acid and calcitic lime. Soil pH increase with lime was not sufficient to provide silicon to the rice. The 0.01 mol L-1 CaCl2 soluble silicon had the best correlation with silicon absorption by plants. More studies are necessary under field conditions and other soils to corroborate the presented results.

scholarly journals STUDY OF PRODUCTION AND VIABILITY COCOON OF Pontoscolex corethrurus FR.MULL AT VARIOUS CONCENTRATIONS OF CARBARYL INSECTICIDES

2019 ◽  
Vol 5 (2) ◽  
Author(s):  
Erwin Nofyan ◽  
Mustafa Kamal ◽  
Syafrina Lamin ◽  
Nafira Putri Rahmasari
Keyword(s):  
Analysis Of Variance ◽  
Confidence Level ◽  
Natural Sciences ◽  
Soil Animals ◽  
Cocoon Production ◽  
Pontoscolex Corethrurus ◽  
Animal Physiology ◽  
Randomized Design ◽  
Completely Randomized Design

Research on the Study of Cocoon Production and Viability of Pontoscolex corethrurus Fr. Mull at various concentrations of Karbaril insecticide was carried out in July to October 2019, at the Laboratory of Animal Physiology, Department of Biology, Faculty of Mathematics and Natural Sciences, Sriwijaya University, Inderalaya, Ogan Ilir, South Sumatra. This study aims to study the production of cocoon and viabiltas earthworm Pontoscolex corethrurus Fr. Mull at various concentrations of carbaryl insecticide as well as getting concentrations of carbaryl insecticide began to react to the amount of cocoon and viability of the earthworm Pontoscolex corethrurus Fr.Mull. Contribution of research on the availability of data on the production of cocoon and viabiltas cocoon of earthworm Pontoscolex corethrurus Fr.Mull after being given various concentrations of carboxyl insecticide and providing information especially to farmers about the effect of various concentrations of carbaryl insecticide on non-target animals, especially soil animals namely Pontoscolex corethrurus Frethrurus earthworm . Mull. This study uses a completely randomized design with 6 (six) treatments and 5 (five) repetitions. The treatment given in the form of carboxyl insecticide with a concentration of 0% (control); 0.1%; 0.2%; 0.3%; 0.4%; 0.5%. Data were analyzed by Analysis of Variance, if there were significant differences followed by Duncan's Test at a 95% confidence level. The results showed that the treatment of various concentrations of carboxyl insecticide significantly affected the average number of cocoon and viability of the earthworm cocoon Pontoscolex corethrurus Fr. Mull. Average number of earthworm cocoons Pontoscolex corethrurus Fr. The lowest Mull was found in the administration of carboxyl insecticide at a concentration of 0.5%, 0.62 ± 0.06 cocoon / individual / week and the average number of earthworm cocoons Pontoscolex corethrurus Fr. The highest Mull was found in the administration of carboxyl insecticide at a concentration of 0% (control), namely 3.62 ± 0.02 cocoon / individual / week. The average viabiltas cocoon of earthworms Pontoscolex corethrurus Fr. The lowest Mull was found in the administration of carboxyl insecticide at a concentration of 0.5%, namely 18.85 ± 1.19% and the average viability of the earthworm cocoon Pontoscolex corethrurus Fr. The highest Mull was found in the administration of carboxyl insecticide at a concentration of 0%, namely 98.65 ± 2.15%

scholarly journals Effect of Aluminium Phosphide on Some Nutrients and Anti-Nutritional Factors in Arachis hypogaea

2020 ◽  
pp. 84-92
Author(s):  
Chibuzo Carole Nweze ◽  
Haruna Gambo Sunday ◽  
Aminu Dallah ◽  
Tsalla Belove Danjuma
Keyword(s):  
Molecular Biology ◽  
Arachis Hypogaea ◽  
State University ◽  
Nutritional Factors ◽  
Nutritional Profile ◽  
Aluminium Phosphide ◽  
Randomized Design ◽  
Significant Difference ◽  
Biology Laboratory

Aims: To comparatively study the effect of aluminium phosphide preservative on some nutrientional and anti-nutritional factors in Arachis hypogaea. Study Design:  Randomized design Place and Duration of Study: Department of Biochemistry and Molecular Biology Laboratory, Nasarawa State University, Keffi between May and August, 2019. Methodology:  Two portions of A. hypogaea weighing 500g each, were obtained, one portion preserved with Aluminium phosphide tablet while the second portion was without any preservative. The preservation lasted for 30 days after which the A. hypogaea was blended using a mechanical blender before analysis for nutritional and anti-nutritional compositions. Result: The proximate compositions were significantly (p<0.05) higher in the NAPP than APP except the fiber (03.01±0.06 mg/100 g; 03.80±0.06 mg/100 g) and ash (01.00±0.06 mg/100 g; 02.23±0.06 mg/100 g). Carbohydrates (07.40±0.06 mg/100 g; 03.48±0.06 mg/100 g), protein (19.93±0.06 mg/100 g; 14.94±0.06 mg/100), fat (74.60±0.06 mg/100g; 68.08±2.75 mg/100 g), and moisture content (06.40±0.06 mg/100 g; 3.00±0.06 mg/100 g). Exception of phosphorus (65.00±0.06mg/100g; 63.00±0.06mg/100g), the minerals concentration was significantly(p<0.05) higher in NAPP compared to APP. Iron (76.20±0.06 mg/100 g; 62.00±0.06 mg/100 g), potassium (38.01±0.06mg/100 g; 26.20±0.06mg/100g), manganese (26.02±0.06mg/100g; 15.10±0.06 mg/100 g), magnesium (11.00±0.06mg/100g; 06.00±0.06 mg/100 g), calcium (82.10±0.06 mg/100 g; 72.00±0.06 mg/100 g) and zinc (25.01±0.06 mg/100 g; 14.01±0.06 mg/100 g).The anti-nutritional factors showed significant difference (p<0.05) higher in tannin (9.33±0.69 mg/100 g;   1.90±0.02 mg/100 g), oxalate (32.50±0.60 mg/100 g; 42.50±.60 mg/100 g), phytate (16.72±0.60 mg/100 g; 5.48±0.60 mg/100 g), alkaloid (16.72±0.60 mg/100g; 5.48±0.60 mg/100 g) and saponins (40.74±0.60 mg/100 g; 38.20±0.60 mg/100 g) except cyanide (0.02±0.00 mg/100 g; 0.02±0.00 mg/100 g). Conclusion: The study showed that aluminium phosphide negatively affected the nutritional profile of A. hypogaea. Thus, the effect of aluminium phosphide should be further investigated in vivo.

scholarly journals A preliminary study on the effect of enriching feed with fish oil on the growth and survival rate of climbing perch Anabas testudineus

2021 ◽  
Vol 6 (2) ◽  
pp. 57-61
Author(s):  
Desiana Trisnawati Tobigo ◽  
Samliok Ndobe ◽  
Adriansyah Adriansyah
Keyword(s):  
Water Quality ◽  
Survival Rate ◽  
Fish Oil ◽  
Animal Husbandry ◽  
Anabas Testudineus ◽  
Growth And Survival ◽  
Climbing Perch ◽  
Randomized Design ◽  
The One ◽  
Biology Laboratory

The climbing perch (Anabas testudineus) is an economically valuable freshwater fish. Relatively slow growth has been a challenge in the domestication of this species in Indonesia. Nutrition, including feed lipid content, is one factor affecting growth. This study examined the effect of enriching feed with fish oil on the growth and survival of climbing perch (A. testudineus) fingerlings. The research was carried out at the Water Quality and Aquatic Biology Laboratory, Faculty of Animal Husbandry and Fisheries, Tadulako University, Palu, Central Sulawesi, Indonesia from 17 December to 18 January 2020. A completely randomized design (CRD) was used with 4 treatments and 5 replicates. The fish oil feed enrichment treatments were: A (control, 0%); B (1%); C (2%) and D (3%). Water quality remained within the optimum range throughout the research period. Over the month, climbing perch absolute weight gain ranged from 2.4±0.981 g (A) to 3.4 ± 0.836 g (D), while growth in length ranged from 0.404±0.092 cm (A) to 0.504±0.071 cm (D); however, the differences were not statistically significant (P0.05). The survival rate of climbing perch over the one month study period was 100% under all treatments, indicating that basic nutritional needs were met. Enrichment of a commercial feed with fish oil (Scott’s emulsion) at rates of 1-3% did not provide a significant benefit in terns of climbing perch fingerling growth.

scholarly journals Performance Of Commercial Strains Chicken Given Commercial Based Feed

2018 ◽  
Vol 6 (1) ◽  
Author(s):  
D R Siregar ◽  
E Mirwandhono ◽  
AH Daulay ◽  
N D Hanafi ◽  
T H Wahyuni
Keyword(s):  
Broiler Chicken ◽  
Combined Treatment ◽  
Animal Husbandry ◽  
Carcass Weight ◽  
Average Weight ◽  
Commercial Strain ◽  
Randomized Design ◽  
Completely Randomized Design ◽  
Biology Laboratory

This research aimed to conclude the best combination of commercial strain and feed on broiler’s carcass. This research was conducted at Animal Husbandry Biology Laboratory, Departement of Animal Husbandry, Faculty of Agriculture, University of North Sumatera for 4 weeks from November until December 2016. This research used completely randomized design (CRD) factorial with 9 combined treatment and 3 replication. The treatment consists of A0B0, A0B1, A0B2, A1B0, A1B1, A1B2, A2B0, A2B1, A2B2. The observed parameters were cutting weight, carcass weight, and carcass percentage. The result showed that the average weight of broiler chicken ranged from 1829,50 – 1929,50 gram/head. The average of Carcass weight ranged from1424,75 – 1676,50 gram/head. And the average of carcass percentage ranged from 78,01 % - 87,98 %. This research conlude that the best combination is A1 and B0.

scholarly journals Effectiveness of Beauveria bassiana Powder as Larvacide to Aedes aegypti Linnaeus, 1762 Larvae

2018 ◽  
Vol 19 (1) ◽  
pp. 45
Author(s):  
Nova Hariani ◽  
Eka Wulandari ◽  
Bodhi Dharma
Keyword(s):  
Experimental Design ◽  
Aedes Aegypti ◽  
Beauveria Bassiana ◽  
Natural Sciences ◽  
Product Concentration ◽  
Percentage Mortality ◽  
Randomized Design ◽  
Completely Randomized Design ◽  
Mortality Percentage ◽  
Third Instar Larvae

Study of effectiveness of Beauveria bassiana Powder as Larvacide to Aedes aegypti larvae was conducted on September 2016 to May 2017 in Ecologi and Systematics Animal Laboratory, Faculty of Mathematics and Natural Sciences, University of Mulawarman. This study aimed to determine the effect of Beauveria bassiana powder with use flour rice media on differents concentration as larvacide to mortality of larvae Aedes aegypti. Stages of study include arranged experimental design (Completely Randomized Design) with concentration of 0%, 0.125%, 0.25%. 0.5% and 0.75%, taking sample, rearing third instar larvae of Aedes aegypti and application Beauveria bassiana powder in 48 hours observation. The mortality value of larvae willbe presented on percentage tabel and graph. The result showed, this product is capable of killing larvae for 48 hours with the percentage mortality 0%, 10%, 28%, 70% and 80% in each concentration. Mortality of larvae is influenced by concentration and period of exposure. Increased of product concentration that given and period of exposure can effected increased of mortality percentage. Keywords: mortality, Beauveria bassiana powder, Aedes aegypti larvae

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