Application methods and dosages of thiamethoxam in thrips control on tomato plants

Thrips is one of the most important vector species of the tomato spotted wilt tospovirus (TSWV) in Brazil. Two different pesticide application methods, drench x spray, using thiamethoxam were compared with commonly used insecticides for thrips control in tomato plants, Debora Plus. The experimental design consisted of a complete randomized block design with seven treatments and four replicates. Dosages of 150 and 200 g of a.i. per ha were used in just one drench application and 50 g of a.i. ha-1 sprayed, at weekly intervals, 48 days after sowing. The control efficacy of thiamethoxam was compared to diafenthiuron (400 g of a.i. ha-1), profenofos + cypermethrin (320+32 g of a.i. ha-1, respectively) and methamidophos (60 g of a.i. per hectolitre of water) in spray application. Cumulative number of plants with tospoviruses and the F. schultzei population from ten flowers per plot were registered. The mean cumulative number of plants with tospoviruses among treatments was not significantly different. No significant difference between thiamethoxam application methods and dosages on F. schultzei control, 24 days after application, were observed for thrips population. One drench application of higher dosages of thiamethoxam proved to be more environmentally advantageous than the pesticide applied at dosages of 50 g of a.i. ha-1 at weekly intervals. The vector control efficacy of thiamethoxam varied from 93 to 95%, independently of the application method and dosages. Diafenthiuron and profenofos + cypermethrin showed less efficacy (78 and 88%, respectively) but greater than those with methamidophos (71%). The products and dosages tested did not cause phytotoxicity in tomato leaves.

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Caracterização da Peneira Média em Clones de Coffea canephora

REVISTA FIMCA ◽

10.37157/fimca.v5i2.58 ◽

2018 ◽

Vol 5 (2) ◽

pp. 28-31

Author(s):

Darlan Darlan Sanches Barbosa Alves ◽

Victor Mouzinho Spinelli ◽

Marcos Santana Moraes ◽

Carolina Augusto De Souza ◽

Rodrigo da Silva Ribeiro ◽

...

Keyword(s):

Genetic Improvement ◽

Block Design ◽

Coffea Canephora ◽

Coffee Production ◽

Randomized Block Design ◽

Significant Difference ◽

The Mean ◽

Four Blocks ◽

Selection Of

Introdução: O estado de Rondônia se destaca como tradicional produtor de café, sendo o segundo maior produtor brasileiro de C. canephora. No melhoramento genético de C. canephora, a seleção de plantas de elevada peneira média está associada à bebida de qualidade superior. Objetivos: O objetivo desse estudo foi avaliar a variabilidade genética de clones de C. canephora para o tamanho dos grãos, mensurado a partir da avaliação da peneira média (PM). Materiais e Métodos: Para isso, foi conduzido ao longo de dois anos agrícolas experimento no campo experimental da Embrapa no município de Ouro Preto do Oeste-RO, para a avaliação da peneira média de 130 genótipos (clones) com características das variedades botânicas Conilon, Robusta e híbridos intervarietais. O delineamento experimental utilizado foi de blocos ao acaso, com quatro repetições de quatro plantas por parcela. Resultados: Não houve resultados significativos para a interação clones X anos, indicando uma maior consistência no comportamento das plantas ao longo do tempo. Porém foram observadas diferenças significativas para o tamanho dos grãos entre os genótipos avaliados, possibilitando selecionar genótipos superiores. Conclusão: Os genótipos agruparam-se em cinco classes de acordo com o teste de média, subsidiando a caracterização de um gradiente de variabilidade da característica avaliada ABSTRACTIntroduction: Coffea canephora accounts for approximately 35% of the world's coffee production. The state of Rondônia stands out as a traditional coffee producer, being the second largest Brazilian producer of C. canephora. In the classical genetic improvement of C. anephora, the selection of plants of high average sieve is associated with a drink of superior quality. Objectives: The objective of this udy was to evaluate the genetic variability of Coffea canephora clones for the agronomic medium sieve (PM). Materials and Methods: The experiment was conducted in the experimental field of Embrapa, municipality of OuroPreto do Oeste-RO, located at coordinates 10º44'53 "S and 62º12'57". One hundred thirty genotypes (clones) of botanical characteristics Conilon, Robusta and intervarietal hybrids were evaluated in the agricultural years 2013-2014 and 2014-2015. The experimental design was a randomized block design with four blocks and four plants per plot, spacing 3.5 x 1.5 meters between plants. Results: Significant difference was found for the grain size. According to the F test, at 5% probability, the genotypes were grouped into five classes according to the mean test. Conclusion: The results obtained subsidized the characterization of a variability gradient of the evaluated trait.

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KUALITAS KARKAS TERNAK BABI GROWER YANG MENGGUNAKAN TEPUNG KULIT KOPI SEBAGAI PENGGANTI SEBAGIAN DEDAK PADA RANSUM

ZOOTEC ◽

10.35792/zot.37.2.2017.16248 ◽

2017 ◽

Vol 37 (2) ◽

pp. 386 ◽

Cited By ~ 1

Author(s):

Magdalena S. Gerungan ◽

Mien Th.R. Lapian ◽

J.A.D Kalele ◽

Zulkifly Poli

Keyword(s):

Statistical Analysis ◽

Rice Bran ◽

Difference Method ◽

Block Design ◽

Carcass Quality ◽

Slaughter Weight ◽

Randomized Block Design ◽

Significant Difference ◽

The Mean

EFFECT OF COFFEE SKIN FLOUR AS A SUBSTITUTE FOR RICE BRAN IN THE RATION ON CARCASS QUALITY OF GROWER PIGS. Research entitled effect of coffee skin flour in the ration of grower phase pig on slaughter weight, carcass length and carcass percentage have been done. Research conducted for 52 days using 16 Landrace pigs. Methods of randomized block design were used. Four replication as group of weight was used and treatments were four level of coffee skin flour of 0%, 25%, 50%, and 75%. The research variables are slaughter weight, carcass length and carcass percentage. Results of statistical analysis showed that there was no significant difference between treatments and the percentage of carcasses and slaughter weight (P> 0.05). The mean of slaughter weight is 76.68 kg and the average of carcass percentage is 63.80%. Analysis of variance showed that there is highly significant difference (P<0.01) between treatments and the length of carcass. Further test by the least significance difference method indicates that there was no significant difference on carcass length between R0 and R1, R2 and R3. There was also no significant difference on carcass length between R1 and R2, R1 and R3, and R2 and R3. Based on these results, it can be concluded that the use of coffee skin flour as a substitution as much as 25% of in the ration can increase the length of the carcass.Keywords: carcass length and carcass percentage, flour coffee skin, slaughter weight, pork.

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Heterobeltiosis in French Marigold (Tagetes patula L.)

Journal of Agricultural Science ◽

10.5539/jas.v8n8p182 ◽

2016 ◽

Vol 8 (8) ◽

pp. 182

Author(s):

Kanwar Priyanaka ◽

Y. C. Gupta ◽

S. R. Dhiman ◽

R. K. Dogra ◽

Sharma Madhu ◽

...

Keyword(s):

Rainy Season ◽

Quantitative Traits ◽

Block Design ◽

Tagetes Patula ◽

Male Sterile ◽

Randomized Block Design ◽

Parental Material ◽

The Mean ◽

Parental Lines ◽

Better Than

The studies on heterosis were carried with four male sterile lines namely; ms7, ms8, ms9, ms10 and 18 diverse pollinators as tester by using line × tester crossing programme. The 72 F1 hybrids were produced and evaluated along with 22 parental lines during summer 2009 and rainy season 2009 in Randomized Block Design. Observations were recorded on nine quantitative traits during both the seasons. Highly significant variances for all the traits indicated the sufficient variability in the parental material for all the characters under study. The performance of F1 hybrids was much better than the mean performance of parents during both the crop seasons. Appreciable heterosis was observed in all the characters, except flower weight in summer and plant height in rainy season.

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

Asian Journal of Agriculture and Rural Development ◽

10.18488/journal.ajard.2021.111.28.34 ◽

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.

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SPRAY APPLICATIONS TO TOMATO PLANTS IN GREENHOUSES. PART 2: EFFECT OF SPRAY LANCE TYPE

Journal of Agricultural Engineering ◽

10.4081/jae.2009.3.49 ◽

2009 ◽

Vol 40 (3) ◽

pp. 49 ◽

Cited By ~ 2

Author(s):

Emanuele Cerruto ◽

Giuseppe Emma ◽

Giuseppe Manetto

Keyword(s):

Block Design ◽

The Body ◽

Lower Limbs ◽

Internal Layer ◽

Protective Equipment ◽

Body Parts ◽

Tomato Plants ◽

Application Rates ◽

Two Factors ◽

The Mean

The present paper reports the results of some spray application trials carried out in a greenhouse with full developed tomato plants to assess foliar deposition, ground losses, and dermal operator exposure when using handheld high pressure spray lances and when walking backwards during treatments. Two spray lance types (conventional with one nozzle and Yamaho C-6 with two steel nozzles, each with two orifices) and two working pressures (10 and 20 bar) were taken into consideration. An experimental design with two factors (spray lance and pressure) was adopted, arranged according to a randomised block design with three replicates. Volume application rates ranged from 775 up to 1252 L/ha, but all data were normalised to 1000 L/ha. The results showed no statistically significant differences in the mean foliar deposition between the two spray lances and the two working pressures. However, the higher pressure improved significantly the deposit into the internal layer of the canopy (+57%), whereas the Yamaho C-6 spray lance produced a higher deposit on the external layer at any pressure. The greatest differences between external and internal layer were mainly concentrated in the middle and high parts of the canopy, where there were 55 007_Cerruto(557)_49 18-11-2009 11:59 Pagina 55 the highest values of LAI and number of foliar layers. The fraction of the applied volume rate on the ground was on average 25 percent and it was affected only by the pressure value: it increased from 21.7 to 28.7 percent when the pressure increased from 10 to 20 bar, due mainly to the contribution of the conventional spray lance under the sprayed twin-rows. Finally, neither pressure nor spray lance type affected significantly the dermal operator exposure. Upper limbs accounted for 51 percent of the total exposure, while trunk and lower limbs accounted for 24 percent each. The body parts more exposed were the left arm and the hands, but also relatively high was the deposit on the respirator, so operators should ever wear appropriate personal protective equipment.

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PENGARUH MULTI NUTRIENT SAUCE (MNS) DENGAN DOSIS YANG BERBEDA DALAM RANSUM TERHADAP KECERNAAN PROTEIN KASAR DAN SERAT KASAR PADA DOMBA

Jurnal Riset dan Inovasi Peternakan (Journal of Research and Innovation of Animals) ◽

10.23960/jrip.2020.4.1.14-20 ◽

2020 ◽

Vol 4 (1) ◽

pp. 14-20

Author(s):

M Alvin Rifqi Fadilla, Erwanto, Muhtarudin, dan Agung Kusuma Wijaya

Keyword(s):

Crude Protein ◽

Block Design ◽

Animal Husbandry ◽

Protein Digestibility ◽

Crude Fiber ◽

Significance Level ◽

Randomized Block Design ◽

Significant Difference ◽

Department Faculty ◽

Difference Test

The purpose of this research was to determine the effect of addition of Multinutrient Sauce (MNS) in the ration on digestibility of crude protein and crude fiber in sheep. This research was conducted in May—July 2019 at the People's Farm of Kebagusan Village, Gedong Tataan District, Pesawaran Regency. The digestibility analysis of crude protein and crude fiber was carried out at the Laboratory of Animal Nutrition and Feed, Animal Husbandry Department, Faculty of Agriculture, University of Lampung. This study used a randomized block design (RBD) based on sheep body weight with six groups and three treatments, namely R0 (ration without MNS); R1 (R0 + MNS 5%); and R2 (R0 + MNS 10%). The data obtained were analyzed using ANOVA at a 5% significance level or 1% significance, and continued with further test using Least Significant Difference Test (LSD) if there is significant results. The results showed that the addition of 10% MNS in the ration had a significant effect (P<0.05) on increasing the digestibility of crude protein and crude fiber in sheep. Keywords: multi nutrient sauce (MNS), digestibility of crude protein, digestibility of crude fiber, sheep.

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KAJIAN MACAM JARAK TANAM SISTEM JAJAR LEGOWO DAN VARIETAS TERHADAP PERTUMBUHAN DAN PRODUKSI TANAMAN PADI (Oryza Sativa L.)

AGRORADIX : Jurnal Ilmu Pertanian ◽

10.52166/agroteknologi.v3i1.1708 ◽

2019 ◽

Vol 3 (1) ◽

pp. 29-37

Author(s):

Istiqomah Istiqomah ◽

Ana Amiroh ◽

Dwi Choiriyah ◽

Suharso Suharso

Keyword(s):

Oryza Sativa L ◽

Block Design ◽

Water Channel ◽

Empty Space ◽

Economic Life ◽

Staple Food ◽

Randomized Block Design ◽

Factor Ii ◽

Significant Difference ◽

Two Factors

Rice is a rice-producing food crop which now plays an important role in economic life in Indonesia. Namely rice as a staple food is very difficult to replace by other staples. Among them are corn, tubers, sago and other carbohydrate sources. So that the existence of rice is now a top priority for the community in meeting the needs of carbohydrate intake that can be filling and is a source of primary carbohydrates that are easily replaced into an energy source. Rice as a staple food is consumed by approximately 90% of the total population in Indonesia for daily essential food (Saragih,2001). How to plant with the jajar legowo system has the advantage that the plants are on the edge so that optimal sunshine can cause plant productivity to be high, facilitate weed control and pests / diseases, use of fertilizer more effectively and the availability of empty space for regulating water channel circulation on land (Sirrapa, 2011). This research was conducted using Factorial Randomized Block Design (RBD) method, which consisted of two factors and each factor consisting of 3 levels repeated 3 times, namely: J1: Conventional,J2: Jajar Legowo 2: 1,J3: Jajar Legowo 4: 1. Factor II: Varieties with 3 levels, V1: Situ Bagendit, V2: Ciherang,V3: IR-64. Of the two factors 9 combinations of treatments were obtained and repeated 3 times. Data obtained from observations were calculated by analysis of variance with the Fisher test (-F test at the level of 5% and 1%), if there were significant differences, it would be followed by the Smallest Significant Difference test (LSD 5%). The treatment of the legowo 4: 1 row system and the ciherang variety (V2J3) produces a better value than other treatments.

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PEMANFAATAN EKSTRAK BELIMBING WULUH DAN EKSTRAK KULIT BUAH NAGA DALAM PEMBUATAN SELAI

Jurnal Agrotek UMMat ◽

10.31764/jau.v8i2.4527 ◽

2021 ◽

Vol 8 (2) ◽

pp. 62

Author(s):

Nurul Aini ◽

Dody Handito ◽

Siska Cicilia

Keyword(s):

Antioxidant Activity ◽

Vitamin C ◽

Block Design ◽

Fruit Peel ◽

Significance Level ◽

Randomized Block Design ◽

Dragon Fruit ◽

Significant Difference ◽

Sensory Tests

This study aims to determine the concentration of starfruit juice and dragon fruit peel on the quality of jam. The experimental design used was a one-factor Randomized Block Design (RAK) with six treatments and three replications to obtain 18 samples. The treatments were the concentration of starfruit juice and dragon fruit peel extract with P1 (100% : 0%), P2 (85% : 15%), P3 (70% : 15%), P4 (55% : 45%), P5 ( 40% : 60%) and P6 (25% : 75%). Parameters observed were vitamin C levels, antioxidant activity, spread, and color as well as sensory tests (color, aroma, and taste). Data analysis results were tested by analysis of variance at a significance level of 5% using Co-Stat software. If there is a significant difference, then the orthogonal polynomial further test is carried out, while the physical and sensory tests are further tested using the Honest Significant Difference test at a significance level of 5%. The results showed that the concentration of star fruit juice and dragon fruit pulp did not have a different effect on vitamin C levels but had a significantly different effect on antioxidant activity, spread, and color. P6 treatment resulted in the highest antioxidant activity of 77.27%, 12.80 mg of vitamin C content, 10.1 cm of smearing power, and sensory properties that were acceptable to the panelists.

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PERAKITAN TEKNOLOGI PENGELOLAAN HARA SPESIFIK LOKASI PADI SISTEM GOGO RANCAH DI DESA SEMAWUNG KECAMATAN ANDONG KABUPATEN BOYOLALI

Agric ◽

10.24246/agric.2016.v28.i1.p31-40 ◽

2017 ◽

Vol 28 (1) ◽

pp. 31

Author(s):

Andrias ◽

Suprihati ◽

Diah Setyorini

Keyword(s):

Nutrient Management ◽

Block Design ◽

Organic Fertilizer ◽

Panicle Length ◽

Randomized Block Design ◽

Cropping Season ◽

Significant Difference ◽

Technological Tool ◽

Npk Fertilizer ◽

Hill Number

ABSTRACTRainfed ricefield, planted at least for one cropping season in a year, depends heavily on rainfall for its water supply. This land generally is low in fertility as indicated by the limited availability of essential plant nutrients in particular nitrogen (N), phosphorus (P), and potassium (K) as well as organic matter. Its productivity is relatively low with a rather erratic precipitation distribution. In order to overcome fertility issue in rainfed land, it is necessary to conduct an integrated nutrient management; one of which is by implementing location specific nutrient management. This study aims to seek the appropriate nutrient management in rainfed paddy field of Semawung village in the sub-district of Andong of Boyolali regency to be provisioned as a technological tool of location specific nutrient management. Research on nutrient management of gogo rancah system-based paddy production was carried out from October 2014 to January 2015. The field experiment was arranged in a Randomized Block Design involving eight treatments and three replications for each treatment. Treatments were combinations of NPK fertilizer, Organofosfat, and straw-based organic fertilizer. Nutrient management using NPK fertilizer and its combination with Organofosfat or organic fertilizer had very significant effect on plant height and number of stem per hill, significantly affected number of panicle per hill, panicle length, and number of fully-filled grain but did not result in difference of fully filled grain percentage and weight of 1000 grains. There was no significant difference between the treatment of 100% of NPK fertilizer and the combination of 75% of NPK fertilizer with straw-based fertilizer regarding these variables: number of stem per hill, number of panicle per hill, panicle length, number of grain per hill, number and percentage of fully-filled grain, weight of 1000 grains, and weight of fresh grain and milled grain yield. Therefore, the latter treatment is feasible as an option of location-specific nutrient management Semawung village.

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Implications of Agricultural Gypsum Doses in Physical-Hydric Attributes of a Typic Haplortox and on Root Growth and Soybean Productivity

Journal of Agricultural Science ◽

10.5539/jas.v11n4p549 ◽

2019 ◽

Vol 11 (4) ◽

pp. 549

Author(s):

Francisco de Assis Guedes Júnior ◽

Deonir Secco ◽

Luiz Antônio Zanão Júnior ◽

Luciene Kazue Tokura ◽

Marcos Felipe Leal Martins

Keyword(s):

Hydraulic Conductivity ◽

Root Growth ◽

Block Design ◽

Total Porosity ◽

Calcium Deficiency ◽

Saturated Hydraulic Conductivity ◽

Soil Density ◽

Randomized Block Design ◽

Significant Difference ◽

Physical Attributes

The response to agricultural gypsum, as a conditioner of the root environment in depth, has been observed for most annual crops. These responses are attributed to the better distribution of roots of the crops in depth in the soil by the reduction of chemical impediments, caused by the exchangeable aluminum and calcium deficiency in these layers, which allows to the plants the use of greater volume of water when they occur summer. In this way, the objective of this study was to evaluate the effects of gypsum doses on physical-hydric attributes, root growth and soybean productivity. The experiment was conducted at the Agronomic Institute of Paraná (IAPAR) in Santa Tereza do Oeste-PR. The soil was classified as Typic Haplortox. Five doses of agricultural gypsum were evaluated: 0; 3; 6; 9 and 12 t ha-1, in outline randomized block design with six repetitions. Soil density, total porosity, macroporosity, microporosity and saturated hydraulic conductivity were evaluated at layers of 0.0-0.1; 0.1-0.2 and 0.2-0.3 m. Soybean productivity and root growth were also evaluated. Data were submitted to regression analysis. The physical attributes soil density, macroporosity and saturated hydraulic conductivity did not differ significantly with the application of the gypsum doses in the 0.0-0.1 and 0.2-0.3 m layers. However, in the 0.1-0.2 m layer, due to pressures imposed by the machines and agricultural implements deforming the soil, there were significant differences in the physical attributes of the density, macroporosity and saturated hydraulic conductivity. There was no significant difference in grain productivity and root growth of soybean.

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