scholarly journals Effect of several types of insecticide on predator population and damage intensity due to soybean pest attack in South Sulawesi, Indonesia

2020 ◽  
Vol 8 (11) ◽  
pp. 272-277
Author(s):  
Abdul Fattah ◽  
◽  
Asriyanti Ilyas ◽  
Salim Salim ◽  
Idaryani Djamaluddin ◽  
...  
Keyword(s):  
Block Design ◽  
Soybean Seed ◽  
Predator Population ◽  
Multiple Cropping ◽  
South Sulawesi ◽  
Randomized Block Design ◽  
Pod Borer ◽  
Soybean Pest ◽  
Soybean Leaves ◽  
Seed Yields

Spodoptera litura was one of the pests that caused soybean seed yield decrease in South Sulawesi. In order to challenge the pests, farmers still largely choose chemical insecticides. This research aimed to establish effectiveness level of several insecticide types that were frequently used by farmers. The design used was Randomized Block Design with 7 treatments (6 insecticide types and 1 control) with 3 replications. The insecticide types examined were: 1) acephate 75%, 2) thiamethoxam 200 g/L + chlorantraniliprole 100 g/L, 3) permethrin 200 g/L, 4) chlorpyrifos 550 g/L + cypermethrin 60 g/L, 5) deltamethrin 50 g/L, 6) profenofos 500 g/L, and 7) polyculture, soybean + corn (control). The result showed that insecticide type of thiamethoxam 200 g/L + chlorantraniliprole 100 g/L was the most effective insecticide to control S. litura with soybean leaves damage intensity (15.19%) and population of Bemisia tabaci whitefly (5.07 tails plant-1). However, thiamethoxam 200 g/L + chlorantraniliprole 100 g/L mostly killed Lycosa sp. predator (0.63 tails plant-1) and Crocothemis servillia (3.26 tails plant-1). The highest predator population was found in multiple cropping of soybean and corn, C. servillia (3.94 tails plant-1), and Lycosa sp. (3.26 tails plant-1). The insecticide of chlorpyrifos 550 g/L + cypermethrin 60 g/L were effective to control soybean pod borer pest Etiella zinckenella (2.40%). Furthermore, insecticide of deltamethrin 50 g/L was effective to control Aphis glycines pest (2.05 tails plant-1). Several types of insecticides are effective in controlling S. litura, N. viridula, and B. tabasi pests, but these insecticides are also effective in killing predators. The highest predator population is soybean-corn intercropping. Keywords: Soybean, insecticides, pests, intensity of damage, predators, seed yields.

scholarly journals PERUBAHAN BENTUK DAN UKURAN BENIH DUA KULTIVAR KEDELAI (Glycine max (L.) Merr.) DI JATINANGOR DAN CIKAJANG

2017 ◽  
Vol 5 (1) ◽  
pp. 1
Author(s):  
Siti Rodiah ◽  
Zulfatunnisa Zulfatunnisa ◽  
Sumadi Sumadi ◽  
Anne Nuraini ◽  
Meddy Rachmadi ◽  
...  
Keyword(s):  
Glycine Max ◽  
Low Temperature ◽  
Seed Size ◽  
Block Design ◽  
Soybean Seed ◽  
Growth Environment ◽  
Randomized Block Design ◽  
Glycine Max L ◽  
Improved Cultivars ◽  
Size Heterogeneity

The variation of the seed size in each species and individuals might be from of difference species adaptation for  a difference environment. This difference may also arise from the constraints of limited formation of seed size. The use of adaptive ciltivars on the growth environment is very influential on the succes in the farm field. This research was aimed to find the adaptation of phase and size seed of two cultivars of soybeans in Jatinangor and Cikajang. This research was held in Jatinangor (Sumedang regency) and Cikajang (Garut regency) from April to July 2016. The design that used in this research was Randomized Block Design (RBD) and Duncan at 5% rate. Improved cultivars that tested in this research were placed at Grobogan and Anjasmoro which were repeated 5 times. The results of experiment showed that adaptation of size seed showed of 100 grains and large seeds. The low temperature condition can increase of variability of seed size. Heterogeneity of environment can not sustain the size of soybean seed. Genetic and environment factors influence significantly for weight of 100 grains and seed size Grobogan in Jatinangor. The weight of 100 grains Grobogan in Jatinangor and Cikajang haved a greater than Anjasmoro. Environmental factors influence yield of soybean, weight of 100 grains of cultivars in Cikajang haved a greater than Jatinangor caused by the seed size.

scholarly journals APLIKASI PUPUK DAN MULSA JERAMI PADA TANAMAN KEDELAI TERHADAP SERANGAN HAMA DAN PRODUKSI

EUGENIA ◽  
2015 ◽  
Vol 21 (1) ◽  
Author(s):  
J. Rimbing ◽  
J. Pelealu ◽  
D. Sualang
Keyword(s):  
Insect Pests ◽  
Block Design ◽  
Insect Pest ◽  
Inorganic Fertilizer ◽  
Flying Insects ◽  
Randomized Block Design ◽  
Soybean Pest ◽  
Crop Damages ◽  
Virus Attack ◽  
Soybean Plants

ABSTRACT   The research was arranged in a randomized block design (RBD), with 10 treatments and 3 replications. To get the active insects pests, net sweepings were done for the flying insects, while other pests were observed directly on the plants. Collecting data of plant damages were made by systematic diagonal lines, except for viruses, census was conducted on each experimental plot.  The results of this experiment documented 12 species of insect pests attacking soybean plants. Soybean pest populations were relatively low, except for Aphis glycine that was quite high. In all treatments, plant damage caused by sucking pest Piezodorus sp and Riptortus linearis were relatively low of 1.53 % to 1.94 %; it indicated an insignificant effect to decline the production. Crop damages by virus showed a significant effect. The lowest virus attacks found on compost of 5 tons per ha with 43 plants infected per treatment, the highest virus attack showed on combination of 5 tons compost per ha + inorganic fertilizer + mulch, in which there were 274 infected plants per treatment. Apparently virus attacks gave impact on soybean production. The highest production were documented on treatment of 5 tons compost per ha with production of 0.55 tons per ha, while the lowest production was found on combination of 5 tons compost per ha + inorganic fertilizer + mulch, in which the production was 0.22 tons per ha. Keywords:  fertilizer, mulch, insect pest, production

scholarly journals Studying the Solubility, availability, and uptake of silicon (Si) from some ore minerals in sandy soil

2018 ◽  
Vol 15 (2) ◽  
pp. 69 ◽  
Author(s):  
Rama T. Rashad ◽  
Rashad A. Hussien
Keyword(s):  
Sandy Soil ◽  
Block Design ◽  
Soybean Seed ◽  
Available N ◽  
Randomized Block Design ◽  
Silicon Uptake ◽  
Constant Rate ◽  
Ore Minerals ◽  
Glycine Max L ◽  
The Individual

The solubility and availability of Si from the feldspar, silica, and zeolite as Si-bearing minerals were studied in a sandy soil. Silicon uptake by the soybean (<em>Glycine max L.</em>)<em> </em>plant was discussed. The minerals used were applied before planting in two separate rates; rate 1 ≈ 595.2 and rate 2 ≈ 1190.5 kg ha<strong><sup>-1</sup></strong> accompanied by a ≈ 4.8 kg ha<strong><sup>-1</sup></strong> constant rate of the K-humate sprayed as a solution on soil after planting in a complete randomized block design. The dissolved Si from the different minerals at rate 2 followed an opposite direction to their SiO<sub>2</sub> percentage that may be due to the structural differences: silica (1.46 mg kg<strong><sup>-1</sup></strong> - SiO<sub>2 </sub>=98.4%) &lt; zeolite (1.71 mg kg<strong><sup>-1</sup></strong> - SiO<sub>2 </sub>=75.9%) &lt; feldspar (2.09 mg kg<strong><sup>-1</sup></strong> - SiO<sub>2 </sub>= 71.9%). The individual mineral treatments at rate 2 have almost decreased the available NPK estimated after soybean harvesting. The K-humate has enhanced the effect of silica at rate 2 for the available N and P. The soybean seed yield (kg ha<strong><sup>-1</sup></strong>) increased significantly by 117.9% for the S1 + H, 109.2% for K-humate and 57.5% for the Z2 + H. The seeds’ Si (mg kg<strong><sup>-1</sup></strong>) increased significantly from 3.6% to 102.9% affected by the silica treatments.

Application Of Vegetable Insecticide With Swamp Plant On Soybeanbork Pest Inland Of Tidal Swamp

2020 ◽  
Vol 9 (2) ◽  
pp. 15-21
Author(s):  
Ni'matuljannah Akhsan
Keyword(s):  
Plant Extract ◽  
Leaf Extract ◽  
Block Design ◽  
Botanical Insecticide ◽  
Insecticide Treatment ◽  
Randomized Block Design ◽  
Tidal Swamp ◽  
Pod Borer ◽  
Tidal Swamps ◽  
The Village

ABSTRACT The aim of this research is to control environmentally friendly soybean pod borer by utilizing plants in swamps as a vegetable insecticide, namely Kepayang (Pangiumedule). The study was conducted on tidal land in the Village of Kiri Dalam, Barambai District, Barito Kuala Regency, South Kalimantan Province. The study was designed in a randomized block design with 5 replications. The treatment is; 1. Kepayang leaf extract, 2. Without control, 3.Neem plant extract, 4. Chloriliprol insecticide. The results showed that the Kepayang leaf extract can be used as a botanical insecticide controlling soybean pod borer because it can suppress soybean pod attack by up to 62% and is no different from the Chloriliprol insecticide treatment by 64%. Keywords: Applications, Swamp Plants, Boring Pods Borers, Tidal Swamps

scholarly journals Effect of adding fungicide to mixtures of triazoles and strobilurins in the control of downy mildew and Asian soybean rust

2019 ◽  
Vol 49 ◽  
Author(s):  
Bruno Zuntini ◽  
Rita de Cassia Félix Alvarez ◽  
Gustavo de Faria Theodoro ◽  
Alan Mario Zuffo
Keyword(s):  
Downy Mildew ◽  
Block Design ◽  
Negative Control ◽  
Soybean Rust ◽  
Modes Of Action ◽  
Asian Soybean Rust ◽  
Randomized Block Design ◽  
Product Effectiveness ◽  
Seed Yields ◽  
Number Of Seeds

ABSTRACT Fungicides used to control the Asian soybean rust are composed almost entirely of mixtures involving the systemic (triazoles) and meso-systemic (strobilurins) modes of action. However, to control the soybean downy mildew, only protective fungicides are available. The present study aimed to evaluate the effectiveness of fungicides with different modes of action in the control of downy mildew and Asian soybean rust. A field experiment was carried out in a randomized block design, with seven treatments [negative control; difenoconazole at V7 + (azoxystrobin + cyproconazole) at R2 and R5.1; (tebuconazole + carbendazim) at V7 + (azoxystrobin + tebuconazole) at R2 and R5.1; carbendazim and mancozeb at V7 + (azoxystrobin + tebuconazole) at R2 and R5.1; (tebuconazole + carbendazim) at V7 + mancozeb in V7 + (azoxystrobin + tebuconazole) at R2 and R5.1; (tebuconazole + carbendazim) at V7 + (azoxystrobin + tebuconazole) at R2 and R5.1 + mancozeb at R2 and R5.1; (tebuconazole + carbendazim) at V7 + azoxystrobin + tebuconazole at R2 and R5.1 + mancozeb at R2 and R5.1 + carbendazim at R5.1] and four replicates. The following variables were evaluated: disease severity based on diagrammatic scales, phytotoxicity, product effectiveness, defoliation, number of pods per plant, number of seeds per pod, 1,000-seed weight and yield. The treatments with mancozeb addition showed to be more efficient in reducing the severity of mildew and Asian soybean rust and defoliation, providing increased seed yields for the crop. For the soybean downy mildew, the treatments with addition of mancozeb to benzimidazole, strobilurins and triazoles were more efficient in reducing the severity and for the control.

scholarly journals Growth, Yield Performance and Quality Parameters of Three Early Flowering Chia (Salvia Hispanica L.) Genotypes Cultivated in Southwestern Germany

Agriculture ◽  
2018 ◽  
Vol 8 (10) ◽  
pp. 154 ◽  
Author(s):  
Samantha J. Grimes ◽  
Timothy D. Phillips ◽  
Volker Hahn ◽  
Filippo Capezzone ◽  
Simone Graeff-Hönninger
Keyword(s):  
Crude Protein ◽  
Block Design ◽  
Growth Yield ◽  
Quality Parameters ◽  
Early Flowering ◽  
Salvia Hispanica ◽  
Randomized Block Design ◽  
Chia Seed ◽  
Salvia Hispanica L ◽  
Seed Yields

The combination of consumer’s ongoing demand for chia (Salvia hispanica L.) alongside the increased demand for regionally produced food products provided the impetus for this study. Its aim was to test if a regional cultivation of new chia genotypes, which were adapted to day lengths greater than 12 hours, is feasible under Central European conditions. Therefore, three early flowering chia genotypes (Sahi Alba 914, W13.1, G8) were cultivated in a randomized block design at two experimental stations in Southwestern Germany (Ihinger Hof, Eckartsweier) over the course of two years (2015, 2016). Mean yields ranged from 100 to 1290 kg ha−1. Mucilage content ranged from 9.5% to 12.2%, while the crude protein content ranged from 17.2% to 25.0%. Crude oil content fell in the range of 30.9–33.7% and the PUFA:SAT ratio ranged from 4.0 to 9.4, whereas the omega6:omega3 ratio varied from 0.27 to 0.5. As chia seed yields surpassed yield levels obtained by their countries of origin and as quality parameters obtained, were in line with the genotypes cultivated in their countries of origin, it can be assumed that a regional chia production in Southwestern Germany offers great potential, being ecologically and economically profitable.

Evaluation of biopesticides against gram pod borer Helicoverpa armigera (HUB.) on pigeonpea

2016 ◽  
Author(s):  
Sagar Anand Pandey ◽  
S. B. Das
Keyword(s):  
Field Experiment ◽  
Grain Yield ◽  
Helicoverpa Armigera ◽  
Block Design ◽  
Pigeon Pea ◽  
Larval Population ◽  
Randomized Block Design ◽  
Pod Borer ◽  
Helicoverpa Armígera ◽  
Major Pest

A field experiment on evaluation of biopesticides against gram pod borer (Helicoverpa armigera Hub.) on pigeon pea was carried out during kharif season of 2012-13. The experiment was laid out in randomized block design with three replications. Gram pod borer is a major pest of pigeon pea in India. For the management of this pest seven biopesticides were tested along with control. Among the biopesticides, Beauveria bassiana @ 1 liter / ha (1x1012 spores/ml) was found to be most effective biopesticide as it recorded lowest larval population (6.68 larvae / 5plants). The highest larval population was recorded in control (12.61 larvae /5 plants). The least effective treatment was Paecilomyces fumosoreseus (9.31 larvae /5 plants). Similar trend was observed in the grain yield as 1667.55 kg/ha, 709.41kg/ha and 1025.21kg/ha , respectively.

scholarly journals Karakteristik Fenotipik dan Pengelompokan Jagung Pulut Hibrida Zea mays L. Hasil Persilangan Puncak

2019 ◽  
Vol 10 (1) ◽  
Author(s):  
Juhriah Juhriah ◽  
Muhammad Azrai ◽  
Elis Tambaru ◽  
Jum Eka Rahayu
Keyword(s):  
Zea Mays ◽  
Zea Mays L ◽  
Block Design ◽  
Experimental Plant ◽  
Phenotypic Characteristics ◽  
Phenotypic Characters ◽  
South Sulawesi ◽  
Randomized Block Design ◽  
Qualitative Characters ◽  
Waxy Corn

This research is the phenotypic characteristics and grouping of hybrid waxy corn Zea mays L. product of the top cross had been carried out in the experimental plant Indonesian Cereals Research Institute (ICERI) in Maros South Sulawesi. This research aims to determine the phenotypic characters of the hybrid of waxy corn Zea mays L. product of the top cross and grouping based on its phenotypic characteristics. This research used a randomized block design (RBD) with 17 th treatments (corn strains) and three replications. Waxy corn strains used were: URI 1 (G8), G8G1, G8G2, G8G3, G8G4, G8G5, G8G6, G8G7, Soppeng (G10), G10G1, G10G2, G10G3, G10G4, G10G5, G10G6, G10G7, and Paramitha.. All data (qualitative and quantitative) are arranged in binary tables and grouped using the NTSYST program. The observations show that the data obtained comes from 14 quantitative characters and 17 qualitative characters. Quantitative data from 14 characters were tested and the results of 10 characters were significantly different and the other 4 were not significantly different. The grouping results show that the 17 corn strains studied formed 3 groups at the similarity coefficient of 0.76. Soppeng's corn is different from the others.

scholarly journals THE INFLUENCE OF BIOCHAR TYPES OF SOIL AND DOSAGE SOYBEAN SUBSTRATION

2019 ◽  
Author(s):  
Solly Aryza
Keyword(s):  
Soil Type ◽  
Block Design ◽  
Soybean Seed ◽  
Germination Percentage ◽  
Rice Hull ◽  
The Third ◽  
Randomized Block Design ◽  
Rice Straw Biochar ◽  
Germination And Growth ◽  
Bagasse Biochar

The objective of this research was to determine the effect of soil type, biochar type and dose of soybean seed germination in a glass house as biochar quality test. The study used a randomized block design with three factors and two replications. First factor were biochar type application: B1 (Rice hull biochar/RHB ); B2(Maize Strover Biochar/MSB); B3 (Rice straw biochar/RSB); B4 (Bagasse Biochar/BB); B5 (Tapioca residue Biochar/TRB); B6 (Oil palm empty fruit bunch/OPB). Second Factor were biochar rate application : 10 t/ha (M1); 20 t/ha (M2). The third Factor was soil type/origin application: Soil from Rampah District (T1); Soil from Medan (T2); District Soil from Galang District(T3). The results of this research showed biochar type, doses of application, soil type, and its interaction significantly affected soybean germination and growth of soybean germination. Rice hull biochar and Bagasse Biochar showed the highest soybean germination percentage and rice hull biochar, and tapioca residue biochar showed the highest growth of soybean germination. Soil from the growth of soybean germination Medan district does biochar at 20 t/ha and interaction 2 factor T2B1 dan B2M1 showed the highest soybean germination percentage

scholarly journals PERTUMBUHAN DAN PRODUKSI TANAMAN JAGUNG PROLIFIK PADA BERBAGAI JARAK TANAM DALAM BARIS DENGAN SISTEM TANAM JAJAR LEGOWO

2020 ◽  
Vol 4 (1) ◽  
pp. 13-23
Author(s):  
Intan Dwi Lestari
Keyword(s):  
Leaf Area Index ◽  
Leaf Area ◽  
Block Design ◽  
Stem Diameter ◽  
Growth And Yield ◽  
Area Index ◽  
Plant Weight ◽  
South Sulawesi ◽  
Randomized Block Design ◽  
Number Of Leaves

This research aimed to determine the effect of spacing on the growth and yield of corn. It was conducted from July to November 2019 at the Experimental Plantation of Cereal Crops Research Institute (BalitSereal), Maros, South Sulawesi. The experimental method used was a randomized block design consisting of 4 treatments: J1= (100 cm x 50 cm) x 20 cm, one seed per hole; J2= (100 cm x 50 cm) x 30 cm, alternating between one seed per hole and two seeds per hole; J3= (100 cm x 50 cm) x 40 cm, two seeds per hole; J4= (100 cm x 50 cm) x 15 cm, one seed per hole. The observed variables were plant height, number of leaves, stem diameter, leaf area index, Anthesis Silking Interval (ASI), length of cob 1 and cob 2, diameter of cob 1 and cob 2, weight of shelled seeds/plant, weight of 100 seeds on cob 1 and cob 2, and production of shelled seeds/hectare. The experimental results showed that plant spacing affected the growth and production of maize. The J3 spacing (100 cm x 50 cm) x 40 cm with two seeds per hole significantly affected the leaf area index and gave the highest average stem diameter. The J2 spacing with (100 cm x 50 cm) x 30 cm with alternating between one seed per hole and two seeds per hole produced the highest production in terms of weight of shelled seeds/plant, weight of 100 seeds and yield of shelled seeds/hectare.

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