scholarly journals PENGARUH VARIASI KERAPATAN SPORA Beauveria bassiana DAN KONSENTRASI LCPKS TERHADAP MORTALITAS LARVA Oryctes rhinoceros

2019 ◽  
Vol 3 (2) ◽  
pp. 63-72
Author(s):  
Muhammad Arif Fadhillah ◽  
Nur Ariyani Agustani ◽  
Jurlaili Irni
Keyword(s):  
Beauveria Bassiana ◽  
Pest Control ◽  
Oil Palm ◽  
Positive Impact ◽  
Leaf Growth ◽  
Block Design ◽  
Total Mortality ◽  
Oryctes Rhinoceros ◽  
Death Time ◽  
Randomized Block Design

Oryctes rhinoceros beetle is one of the pests that attacksimmature oil palm plants.This pest attacks oil palm plants in larvae or imago phase. This pest is usually damaging the respiratory roots, trunk bark, dry petiole,or periphery crown of oil palm leaves which can interferes the leaf growth and finally reduce the production even collapse the tree. Chemically pest control have the positive impact with faster pest death beside the negative impacts such as resistance, resurgence, disturbing human health and also environmental and ecosystem pollution. Biological control is one alternative pest control that is safe for the environment and can reduce chemical residues in agricultural products and environment. This study was conducted in Medan Denai district on July – Agustus 2019. This study aimed to determine the effect of the use of Beauveria bassiana and palm oil mill effluent to control Oryctes rhinoceros larvae. The method used in this study is a two factorial randomized block design (RBD), with 2 replications. The results of this study showed that the best density of Beauveria bassiana spores in controlling Oryctes rhinoceros larvae was 109 spores / ml and 50ml LCPKS  (I2Q2) with death time of 40 hours, daily mortality 60%, total mortality 100%.

scholarly journals Pathogenicity of Beauveria bassiana Vuill in compost media for Oryctes rhinoceros L. oil palm pest control

2021 ◽  
Vol 4 (1) ◽  
pp. 1
Author(s):  
Rina Novianti ◽  
Hafiz Fauzana ◽  
Rusli Rustam
Keyword(s):  
Biological Control ◽  
Beauveria Bassiana ◽  
Pest Control ◽  
Oil Palm ◽  
Biological Control Agent ◽  
Early Death ◽  
Breeding Site ◽  
Control Agent ◽  
Oryctes Rhinoceros ◽  
Plant Pest

The Oryctes rhinoceros pest is an important pest of palm oil plant.  Pest problems occur because  Oil Palm Empty Fruit Bunches (OPEFB) is added for soil fertility to create a breeding site for larvae O. rhinoceros. Generally, OPEFB will receive the plants more quickly when composted, and pest control is carried out in the compost. Biological control is more recommended because it is environmentally friendly, Therefore compost is added with biological control agent O. rhinoceros namely B. bassiana. This study is aimed to obtain the best conidia density of Beauveria bassiana in compost in controlling larvae O. rhinoceros. The research was carried out at the Plant Pest Laboratory and Experimental Garden, Faculty of Agriculture, Riau of University. The study was carried out from February to November 2020. The experiment on the conidia density of B. bassiana fungi in compost media against larvae O. rhinoceros, using a Completely Randomized Design (CRD), with 6 treatments 4 replications obtained 24 experimental units, while the treatments were 0 g.l-1, 15 g.l-1, 30 g.l-1, 45 g.l-1, 60 g.l-1 and 75 g.l-1. The results of the research revealed that  OPEFB compost + sawdust containing the fungus B. bassiana 75 g.l-1 (83,2 x108 kon/ml) had the best ability to control larvae O. rhinoceros with a total larvae mortality of 87% which caused early death of 54 hours after application, LT50 of 213 hours after application, and LC50 of 3,3% or the equivalent of 33 g.l-1 at 14 days after application.

scholarly journals The contents availability of N, P, K, and Mg in empty fruit composting of oil palms with symbiont bacteria from rhinoceros beetle larvae (Oryctes rhinoceros) (Coleoptera: Scarabidae)

Food Research ◽  
2021 ◽  
Vol 5 (S4) ◽  
pp. 62-66
Author(s):  
F.S.D. Sitanggang ◽  
Marheni ◽  
J. Ginting
Keyword(s):  
Oil Palm ◽  
Bacterial Culture ◽  
Block Design ◽  
Nutrient Content ◽  
Oryctes Rhinoceros ◽  
Empty Fruit Bunches ◽  
Rhinoceros Beetle ◽  
Randomized Block Design ◽  
High K ◽  
Reproductive Activities

The using of palm oil waste had not been optimal lately. It could be seen in oil empty fruit bunches (EFB). It was placed along the oil palm plantations. The condition was not only the trigger of air pollution but also could invite rhinoceros beetle pests (Oryctes rhinoceros) to lay their eggs and carry out reproductive activities due to availability organic matter of the trees. Oil palm plants required large amounts of macro nutrients, especially potassium. However, the potassium nutrient was found in EFB was too slow available because of its relatively long breakdown. That was the reason why it was needed a method of using EFB waste into a capable of high use value product, environmentally friendly, and could give a lot of benefits to oil palm farmers. The purpose of this study was to determine the availability of nutrient content in EFB composting by the using of symbiont bacteria from larvae O. rhinoceros. The research was experimentally conducted a factorial randomized block design (RBD) with 2 factors, namely the type of bacteria and the time of decomposition. The composting stage was carried out by coarsely chopping the EFB then 75 ml of bacterial culture was applied to 1 kg of EFB. Analysis, results indicated C/N ratio (35.56% and 36.97%) and high K content (1.64% and 1.48%). The EFB composting method is achievable in 6 weeks with activators of Bacillus stratosphericus and Bacillus siamensis.

The Effect of Stem Segment Cuttings of Robusta Coffee (Coffea canephora) on Growth of Root and Leaf Sprout

2021 ◽  
Vol 11 (1) ◽  
pp. 28-34
Author(s):  
Bistok Hasiholan Simanjuntak ◽  
Devi Kusuma Wardani
Keyword(s):  
Leaf Growth ◽  
Block Design ◽  
Experimental Treatment ◽  
Coffea Canephora ◽  
Stem Segment ◽  
Significance Level ◽  
Robusta Coffee ◽  
Randomized Block Design ◽  
Honestly Significant Difference ◽  
Significant Difference

Robusta coffee plant propagation is recommended to be performed by vegetative methods, one of which is cuttings. Among plant organs that can be used for cuttings is the stem. The research objective was to determine which stem segment from cuttings was able to provide the best root and leaf growth. The layout study used a completely randomized block design (RBD) with an experimental treatment consisting of five stem segments, namely (1) the first stem segment from the upper shoot (A); (2) the second stem segment from the upper shoot (B); (3) the third stem segment from the upper shoot (C); (4) the fourth stem segment from the upper shoot (D); and (5) the fifth stem segment from the upper shoot (E); each treatment had five replications. Data analysis was performed statistically with analysis of variance (ANOVA) and Tukey's HSD (honestly significant difference) test with a significance level of P < 0.05. Robusta coffee cuttings stems from the second stem segment from the upper shoot were able to provide the optimal root growth (root length) and shoot growth (leaf sprout height and leaf sprout growth rate). Leaf sprout number derived from the cuttings was not affected by the stem segment.

scholarly journals The Influence of Solid Palm Oil Waste and Npk Fertilizer on the Growth and the Production of Green Eggplant (Solanum MelongenaL.)

2020 ◽  
Vol 8 (07) ◽  
pp. 296-303
Author(s):  
Rosmadelina Purba ◽  
Jonner Purba ◽  
Furqon Harkesa Damanik
Keyword(s):  
Palm Oil ◽  
Oil Palm ◽  
Block Design ◽  
Randomized Block Design ◽  
Interaction Treatment ◽  
Waste Solid ◽  
Npk Fertilizer

The purpose of this research was to discover the effect of solid and NPK fertilizer, as well as the interaction of solid and NPK fertilizer on the growth and production of green eggplant. This research used a factorial randomized block design with two treatment factors, namely the first factor: Administrationof oil palm solid which consisted of 4 levels of treatment, namely: S0 = No palm oilwaste solid; S1 = Administration of palm oil waste solid at 0.5 kg/m2; S2 = Administration of palm oil waste solid at 1 kg/m2; S3 = Administration of palm oil waste solid at 1.5 kg/m2. The second factor is the addition of NPK fertilizer per plant (J) consisting of 3 levels of treatment, namely: J0 = 0 g/plant; J1 = 5 g/plant; J2 = 10 g/plant. The results showed that solid treatment significantly affected the plants height at ages 2, 4, and 6 MST, flowering age, production per plant, and production per plot. The treatment of Solid S3 produced the highest plants aged 2, 4, and 6 MST, respectively (21.78 cm), (53.45 cm), and (77.78 cm), the fastest flowering age (32.89 days), highest production per plant (1748.77 g), and highest production per plot (21.89 kg). The NPK treatment significantly affected the plants height at ages 4 and 6 WAP, flowering age, production per plant, and production per plot. The NPK J2 fertilizer dosage treatment produced the highest plants aged 4 and 6 WAP, respectively (47.83 cm), and (75.84 cm), the fastest flowering age (32.91 days), the highest production per plant (1562.91 g), and the highest production per plot (19.86 kg). The interaction treatment of the NPK fertilizer and solid administration did not significantly affect all parameters. The combination of S3J2 produced the highest plants aged 2 and 6 WAP, respectively (22.33 cm) and (79.67 cm), the fastest flowering age (32.33 days), the highest production per plant (1816.67 g), the and highest production per plot (22.49 kg).  

scholarly journals Utilization of Liquid Palm Organic Fertilizers and M-Bio Biological Fertilizers Against Growth and Production in Okra Plants (Abelmoschusesculentus L. Moench)

2019 ◽  
Vol 1 (2) ◽  
pp. 113-122
Author(s):  
Heru Kurniawan ◽  
Asmah Indrawati ◽  
Gusmeizal Gusmeizal
Keyword(s):  
Palm Oil ◽  
Oil Palm ◽  
Block Design ◽  
Organic Fertilizer ◽  
Organic Fertilizers ◽  
Liquid Fertilizer ◽  
Factor I ◽  
Randomized Block Design ◽  
Factor Ii ◽  
Biological Fertilizer

Okra plant is becoming to be one of favortite vegetable in Indonesia since then the deman of this plant is growing very rapidly. The aim of this research is to Utilize Palm Oil Liquid Organic Fertilizer and M-Bio Biofertilizer Against Growth and Production in Okra Plants (Abelmoschusesculentus  L.  Moench).  This  study  used  a  Randomized  Block  Design (RBD) with 2 replications. Factorial consisting of II treatment factors, Factor I treatment given P0: Without Liquid Palm Oil Organic Fertilizer, P1: Provision of PKS liquid fertilizer and Factor II, treatment of giving M-Bio. Parameters observed in this study were  vegetative dan generative. The results showed that the treatment of oil palm liquid organic fertilizer had no significant effect on vegetative and generative observed parameters. The treatment of M-Bio biofertilizer significantly affected the vegetative and generative observation parameters where the best dose was treatment  6%. The treatment of the combination of liquid organic fertilizer from palm oil waste and M-Bio biological fertilizer has no significant effect on all parameters of vegetative and generative observations.

Effect of pink-pigmented facultative methylotrophs, PGRs and Nutrients on Growth, Yield and Economics of Irrigated Blackgram [Vigna mungo (L.) Hepper]

2021 ◽  
Author(s):  
R. Ajaykumar ◽  
S. Selvakumar ◽  
K. Harishankar ◽  
K. Sivasabari
Keyword(s):  
Grain Yield ◽  
Nutritive Value ◽  
Foliar Application ◽  
Positive Impact ◽  
Block Design ◽  
Growth Yield ◽  
Vigna Mungo ◽  
Area Index ◽  
Yield Attributes ◽  
Randomized Block Design

Background: Blackgram [Vigna mungo (L.) Hepper] is one of the most important cultivated legume crops with high nutritive value and agricultural importance. The productivity of blackgram is not adequate to meet the domestic demand of the growing Indian population. Consequently, there is an urgent need for enhancement of productivity through proper agronomic practices. With this background, a research experiment was conducted in a farmer’s field at Pudhupalayam, Coimbatore to investigate the effect of foliar application of PPFM, plant growth regulating compounds and nutrients on growth, yield attributes, yield and economics of irrigated blackgram. Methods: A field experiment was laid out in randomized block design with three replications during 2019 (kharif and rabi) season. The treatments include 100% recommended dose of NPK along with foliar application of diammonium phosphate (DAP), brassinolide (Br), salicylic acid (SA) and pink pigmented facultative methylotrophs (PPFM) with different concentration (1%, 2%, 1 ppm, 2 ppm, 50 ppm, 100 ppm, respectively) in addition to control. PPFM and PGRs were sprayed at 30 and 45 days after the sowing of blackgram. Result: The experiment results of the two seasons study revealed that the application of 100% RDF + PPFM @ 2% recorded higher growth characters viz., plant height (cm), number of branches plant-1, leaf area index and yield attributes viz., number of pods plant-1, number of seeds pod-1, pod weight (g), pod height (cm), 100 seed weight (g) and yield viz., grain yield (kg/ha), straw yield (kg/ha) and harvest index (%). As well as the same treatment recorded higher net return and B:C ratio. Correlation and regression analysis also indicated that the yield attributes had a positive impact on the grain yield with a magnitude of 1.91 and 1.67, respectively. Therefore, application of 100% RDF+2% PPFM spray can be recommended as the best technology to improve the yield and economics of blackgram.

scholarly journals Optimasi Paket Pupuk Tunggal pada Tanaman Kelapa Sawit Belum Menghasilkan Umur Satu Tahun

2015 ◽  
Vol 43 (2) ◽  
pp. 161
Author(s):  
Hidayat Saputra ◽  
Sudradjat , ◽  
Sudradjat , ◽  
Sudirman Yahya ◽  
Sudirman Yahya
Keyword(s):  
Boric Acid ◽  
Oil Palm ◽  
Growth Response ◽  
Block Design ◽  
Response Patterns ◽  
Optimum Rate ◽  
Palm Trees ◽  
Randomized Block Design ◽  
Efficiency And Effectiveness ◽  
One Year

<p>ABSTRACT</p><p>Effective and efficient fertilization is affected by fertilizer dose, and therefore information on the appropriate dose of a single fertilizer for oil palm will be beneficial to increase the efficiency and effectiveness of fertilization in oil palm plantations. The objectives of this research were to study the response patterns and to determine optimum rate of single fertilizer package related to the growth of one year old oil palm trees. The experiment was conducted from March 2013 to February 2014 at IPB-Cargill Teaching and Research Farm of Oil Palm, Jonggol Bogor. The experiment was arranged in randomized block design with one factor and replicated three times. The treatments were four single fertilizer package as followed: control, 300 g urea + 375 g SP-36 + 350 g KCl + 25 g boric acid + 25 g CuSO4.5H2O, 600 g urea + 750 g SP-36 + 700 g KCl + 25 g boric acid + 25 g CuSO4.5H2O, 900 g urea + 1125 g SP-36 + 1050 g KCl + 25 g boric acid + 25 g CuSO4.5H2O per plant. The result showed that application of single fertilizer package significantly increased the growth of young oil palm linearly as shown by plant height, stem girth, leaf area of frond number 9, chlorophyll and P content of the leaves and quadratically on leaf number at the last observation. The optimum rate of single fertilizer for one year old oil palm trees had not been attained at this research because the plant growth response to fertilization was still linear.</p><p>Keywords: inorganic, leaf frond number 9, optimum rate, growth response, stem girth</p>

scholarly journals KEBERHASILAN PERTUMBUHAN STEK JAMBU MADU (Syzygium equaeum) DENGAN PEMBERIAN ZAT PENGATUR TUMBUH KIMIAWI DAN ZAT PENGATUR TUMBUH ALAMI BAWANG MERAH (Allium cepa L)

2019 ◽  
Vol 6 (1) ◽  
pp. 45
Author(s):  
Syariani BR Tambunan ◽  
Nico Syahputra Sebayang ◽  
Wazhi Aminoto Pratama
Keyword(s):  
Allium Cepa ◽  
Growth Regulators ◽  
Growth Regulator ◽  
Leaf Growth ◽  
Block Design ◽  
Natural Growth ◽  
Onion Extract ◽  
Randomized Block Design ◽  
Allium Cepa L

The purpose of this research is to determine the growth of guava cuttings (Syzygium equaeum) by administering a chemical and natural growth regulator from onion extract (Allium cepa L). This study uses Factorial Randomized Block Design (RBD) consisting of 2 treatment factors and 3 replications. The first treatment is the utilization of chemical growth regulators, which consist of C0: no chemical growth regulator, C1: 20 ml chemical growth regulator / 1 liter of water) / cuttings; C2: 20 ml chemical growth regulator / 2 liters of water) / cuttings. The second treatment is the application of natural growth regulators onion extract, which consist of A0: no onion extract, A1: 20 ml onion extract /1 liter of water / cuttings, A2: 30 ml onion extract / 2 liters of water) / cuttings. The highest growth results of cuttings are in C0A1, C0A2 and C2A2, because of auxin and gibberellin hormone in C0A1 and C0A2 where the auxin lengthen the stem and roots, and the gibberellins support the leaf growth, and elongation of shoots and roots.

scholarly journals Spatial arrangement of plants on leaf growth and development and the yield potential of soybean

2020 ◽  
pp. 913-922
Author(s):  
José Eduardo Minussi Winck ◽  
Thomas Newton Martin ◽  
Marlo Adriano Bison Pinto ◽  
Lucas Allan Bruning ◽  
Guilherme de Almeida Arismendi
Keyword(s):  
Growth And Development ◽  
Field Experiments ◽  
Leaf Growth ◽  
Block Design ◽  
Grain Filling ◽  
Spatial Arrangement ◽  
The Other ◽  
Plant Distribution ◽  
Yield Potential ◽  
Randomized Block Design

This study aimed at determining the effect of a variety of plants arrangements on foliar growth and development as well as the productive potential in soybean. The field experiments were performed over two agricultural years (2015/16 and 2016/17) on Argisoil in subtropical environment. The two selected cultivars, viz., BMX Tornado RR and FPS Urano RR were sown in four spatial distribution of the plants such as conventional spacing (0.45 m spacing between rows), reduced spacing (0.225 m spacing between rows), paired spacing (two rows with 0.225 m and 0.45 m spacing from the other rows) and crossed spacing (0.45 m spacing between the rows with crosses of two rows, at a 90° angle). The randomized block design was adopted for the experiments with the treatments in a 2x4 factorial distribution and four replications. The first factor was the cultivar and the second types of plant distribution. The results showed that plant arrangement affected the plant profile regarding the behavior of the ecophysiological variables like plastochron, leaf lifetime and yield distribution. Leaf life in each stratum was caused by the foliar senescence rhythm, explained by a 4th degree polynomial model, revealing two peaks in the senescence rate, one during pre-flowering stage and the other when the grain filling stage was completed. According to the results, we do not recommend changes in conventional spacing.

scholarly journals PENGARUH PENAMBAHAN PELEPAH KELAPA SAWIT SEBAGAI BAHAN CAMPURAN TERHADAP SIFAT MEKANIK KUAT TEKAN DAN POROSITAS BATU BATA

2019 ◽  
Vol 1 (2) ◽  
pp. 47-53
Author(s):  
Seno Aji ◽  
Teguh Satria Mahlindo ◽  
Sari Anggraini
Keyword(s):  
Mechanical Properties ◽  
Compressive Strength ◽  
Oil Palm ◽  
Block Design ◽  
Test Results ◽  
Oil Palm Fronds ◽  
Randomized Block Design ◽  
Strength Tests ◽  
Palm Fronds ◽  
Palm Frond

This study aimed to determine the effect of oil palm fronds addition as a mixture to the mechanical properties of bricks in terms of porosity testing, and compressive strength, and to determine the proper percentage of oil palm frond additions. This research is a type of experiment with a randomized block design (RBD) arranged non-factorial and the data is processed using the SPSS 20 Tukey test program. This study used a brick-shaped sample with a length of 19 cm, a width of 9.5 cm and a height of 4.5 cm. Variations in the composition of the added oil palm fronds are 0%, 5%, 10%, 15%, and 20%. Parameter mechanical properties of bricks included porosity, and compressive strength tests. The addition of oil palm fronds with a composition percentage of 0% to 10% affected the mechanical properties of the bricks by reducing porosity and increasing the compressive strength of the bricks. Based on the test results obtained by each of the best test values, namely the minimum porosity value achieved in the percentage of oil palm fronds as much as 10%, which is 18.4%. The optimum compressive strength value is achieved on the percentage of oil palm fronds as much as 10% which is equal to 20.5 N / mm².

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