TIPOS DE ENRAIZADORES EN VARETAS DE (THEOBROMA CACAO), COMUNIDAD CARAO. SIUNA, 2011

La presente investigación se realizó en la comunidad Carao-Hormiguero, Siuna, Región Autónoma del Atlántico Norte (RAAN), ubicada en la zona núcleo de la reserva de biosfera BOSAWAS, con el propósito de evaluar la eficacia del proroot y ácido húmico en el enraizamiento en varetas de cacao. El estudio fue experimental, transversal y prospectivo. La metodología basada en el Diseño Completamente al Azar (DCA) con tratamientos de ácido húmico, proroot y testigo en un período de 40 días (20 de septiembre al 30 de octubre). Se utilizaron 180 varetas en 3 tratamientos con 3 réplicas de 60 varetas, 20 por bancal. Con el enraizador ácido húmico se obtuvo un prendimiento de 40% (24), con Proroot, 68.33% (41) y testigo, 11.66% (7). En general se logró un 40% de prendimiento (72 varetas). La inversión durante la investigación fue de C$ 2,548.60.(C$ 35.39 por vareta). El tratamiento que dio resultados aceptables fue el proroot, del que se obtiene una ganancia neta de C$ 388.80.SummaryThis research was carried out in the Carao Hormiguero community, municipality of Siuna, RAAN, which is located in the center of the Bosawas biosphere reserve, in order to evaluate the effectiveness of ProRoot and the humic acid on the rooting in cacao branches. The research was experimental, transverse and prospective. The methodology was based on a completely randomized design (DCA) with humic acid treatments, ProRoot and control in a period of 40 days (September 20 to October 30). 180 branches were used in 3 treatments with 3 replications of 60 branches, 20 by plots. With the rooting humic acid 40% (24) of capture was obtained, with ProRoot, 68.33% (41) and control, 11.66% (7). In general 40% of capture was achieved (72 branches). The investment during the investigation was of C$ 2,548.60 (C$ 35.39 per branch). The treatment that gave acceptable results was ProRoot, of which a net profit of C$ 388.80 is obtained.

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Effect of Ethephon and Packaging Practices On Ripening of Mango cv. Maldah

SAARC Journal of Agriculture ◽

10.3329/sja.v19i1.54786 ◽

2021 ◽

Vol 19 (1) ◽

pp. 155-163

Author(s):

S Sapkota ◽

D Kc ◽

H Giri ◽

M Saud ◽

M Basnet ◽

...

Keyword(s):

Chemical Properties ◽

Control Treatment ◽

Quality Performance ◽

Plastic Packaging ◽

Randomized Design ◽

Acid Ratio ◽

Ethephon Treatment ◽

Completely Randomized Design ◽

And Control ◽

Juice Content

The present research was conducted on two factor Completely Randomized Design (CRD) with eight treatments and three replications. A set of experiments were carried out to evaluate the effect of postharvest ethephon treatment and packaging on ripening of mango cv. Maldah. The treatments consisted of ripening agent i.e., ethephon and control treatment under different packaging condition i.e., fiber with hole, fiber without hole, plastic with hole and plastic without hole. The result revealed that different packaging condition and ripening agents influenced the ripening behavior of mango. The highest TSS (15.26), sugar-acid ratio (23.66) and juice content (126.05) were recorded with fiber (without hole) and the lowest TSS (12.60), sugar-acid ratio (9.01) and juice content (116.05) with plastic (without hole). The highest TA (1.44) was recorded with plastic (without hole) and the lowest (0.66) with fiber (without hole). Similarly, the highest BT (2.83) was recorded with fiber (with hole) and the lowest (1.66) with plastic (without hole). Firmness, sweetness, TSS and juice content were the highest with the interaction effect of fiber bag (without hole) and ethephon treatment. In conclusion, mango fruits with ethephon treatment packed in fiber bag (without hole) enhances quality and ripening of mango whereas under controlled condition and without hole plastic packaging mangoes had low quality performance in terms of physio-chemical properties. SAARC J. Agric., 19(1): 155-163 (2021)

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Effect of pasteurization and starter cultures on physicochemical and microbiological properties of costeño cheese

Revista Facultad Nacional de Agronomía Medellín ◽

10.15446/rfna.v69n2.59145 ◽

2016 ◽

Vol 69 (2) ◽

pp. 8007-8014 ◽

Cited By ~ 3

Author(s):

José G. Serpa ◽

Tulia I. Pérez ◽

Elvis J. Hernández

Keyword(s):

Lactococcus Lactis ◽

Control Sample ◽

Raw Milk ◽

Starter Cultures ◽

Sensorial Analysis ◽

Pasteurized Milk ◽

Randomized Design ◽

Completely Randomized Design ◽

And Control ◽

Microbiological Properties

The effect of pasteurization and starter cultures on physicochemical, microbiological and sensorial characteristics of costeño cheese was determined. A completely randomized design was conducted, three treatments (T) and three replicates: Treatment 1 (T1): cheese manufactured with pasteurized milk without starter cultures, Treatment 2 (T2): cheese manufactured with pasteurized milk with Lactococcus lactis and Lactococcus cremoris (1:1) and Treatment 3 (T3): cheese manufactured with pasteurized milk with Lactococcus lactis, Lactococcus cremoris and Streptococcus thermophillus(0.5:0.5:1). Treatments were compared to a control sample that was prepared with raw milk without starter cultures. Concentration of 1.5% (v/v) of culture was used in relation to the amount of used milk in each treatment. Moisture content was higher in all treatments compared to the control and protein and fat content were significantly lower. Acidity was significantly higher in samples from T2 y T3 compared to T1 and control, due to the metabolism of starter cultures. Total coliforms, yeast and mold counts showed a significant reduction due to pasteurization process in all treatments. Regarding sensorial analysis, hedonic test showed a greater preference in cheese manufactured with T2 (P<0.05). There were no significant preferences between T1, T3 and control. Additionally, yield was significantly higher with T1 (22%) and T3 (23%) compared to control.

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Influence of Post Shooting Spray and Bunch Bagging on Per Day Productivity and Fruit Quality of Banana (Musa paradisiaca L.)

Journal of Scientific Research and Reports ◽

10.9734/jsrr/2021/v27i1130464 ◽

2021 ◽

pp. 129-136

Author(s):

D. R. Paradva ◽

M. J. Patel ◽

H. L. Kacha

Keyword(s):

Humic Acid ◽

Gibberellic Acid ◽

Shelf Life ◽

Blue Colour ◽

College Of Agriculture ◽

Musa Paradisiaca ◽

Randomized Design ◽

Completely Randomized Design ◽

Horticultural Research

Aims: To determine the effect of post shooting spray and bunch bagging on per day productivity and quality of banana (Musa paradisiaca L.)” Study Design: 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 experiment comprises of twenty four treatment combinations involving two varieties viz. Grand Naine and William with six levels of post shooting sprays 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 % with two bunch bagging viz., non- woven material bag covering and blue colour polyethylene sleeve (6 % perforated) bag covering. 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. Results: The results indicated that the Grand Naine variety recorded significantly minimum harvest days, maturity days. Whereas, William variety was recorded significantly shelf life and fruit appearances. In case of per day productivity is concerned, both the varieties were equally important. The post shooting spray of GA3 100 mg/l recorded significantly improves per day productivity and fruit appearances. Whereas, post shooting spray of SOP 2 % recorded minimum harvest day and maturity days. While, post shooting sprays of CPPU 4 mg/l showed significantly maximum shelf life. The non-woven material bag covering was significantly better among all quantitative and qualitative parameters as compared to blue colour polyethylene sleeve bag covering. While, post shooting spray of CPPU 4 mg/l with non-woven material bag covering showed significantly expand the shelf life of fruit. Conclusion: Grand Naine variety recorded significantly minimum harvest and maturity days. Whereas, William variety was recorded significantly shelf life and fruit appearances. The post shooting spray of GA3 100 mg/l was improved per day productivity and fruit appearances. Whereas, post shooting sprays of CPPU 4 mg/l showed significantly enhancing the shelf life. The non-woven material bag covering on banana bunches was found significantly better among all quantitative and qualitative parameters.

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Integrated management of tough lovegrass (Eragrostis plana Nees): associating chemical control tools and plant physiology

Ciência Rural ◽

10.1590/0103-8478cr20200271 ◽

2021 ◽

Vol 51 (2) ◽

Author(s):

Eduardo Avelino Faleiro ◽

Diego Martins Chiapinotto ◽

Fabiane Pinto Lamego ◽

Carlos Eduardo Schaedler ◽

Eduardo Bohrer de Azevedo

Keyword(s):

Solar Radiation ◽

Integrated Management ◽

Dry Mass ◽

Radiation Factor ◽

Factor B ◽

Randomized Design ◽

Completely Randomized Design ◽

Factor C ◽

Resource Conditions ◽

And Control

ABSTRACT: The objective of the study was to evaluate the efficiency of herbicides use in the control of tough lovegrass according to the availability of solar radiation and the presence or absence of flooded. Two experiments were conducted in a completely randomized design, in a 2x2x4 and 2x2x5 factorial scheme, where factor A was equivalent to the environment (natural or reduced radiation); factor B to water condition (with a 2 cm flooded or without); and, factor C the herbicides: cyhalofop butyl (315 g ha-1), glyphosate (1080 g ha-1), cyhalofop butyl + glyphosate (315 g ha-1 + 1080 g ha-1) and control (without application) in the first experiment. In the second experiment, the herbicides used were cyhalofop butyl (315 g ha-1), glyphosate (1080 g ha-1), sethoxydim (184g ha-1), imazethapyr (106 g ha-1) and control (without application). Glyphosate efficiently controls plants of tough lovegrass with four tillers (>90%), being superior to cyhalofop, imazethapyr and sethoxydim; independently, of resource conditions. Reduction in the availability of solar radiation generates less shoot dry mass production from the weed, and improves the control only by imazethapyr and cyhalofop. In general, a flooded condition does not affect tough lovegrass control by herbicides.

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Effect of different selenium sources and concentrations on glutathione peroxidase activity and cholesterol metabolism of beef cattle

Journal of Animal Science ◽

10.1093/jas/skab321 ◽

2021 ◽

Author(s):

Janaina S da Silva ◽

Alessandra F Rosa ◽

Cristina T Moncau ◽

Bárbara Silva Vignato ◽

Silvana Marina P Pugine ◽

...

Keyword(s):

Beef Cattle ◽

Cholesterol Metabolism ◽

Control Treatment ◽

Glutathione Peroxidase Activity ◽

Randomized Design ◽

Liver Concentration ◽

Total Meat ◽

Completely Randomized Design ◽

And Control ◽

Different Sources

Abstract The objective of this study was to investigate the effects of different Se sources and concentrations on glutathione forms and cholesterol metabolism in beef cattle. Sixty-three Nellore bulls (412 ± 19 kg BW; 24 months old) were randomly assigned to a completely randomized design in a 2×3 + 1 factorial arrangement (63 pens; one animal/pen) with two Se sources (sodium selenite, ING and Se-yeast, ORG), three concentrations (0.3, 0.9 and 2.7 mg supplemental Se/kg DM), and control treatment (without Se supplementation) fed for 90 days. Blood samples were collected on d 0, 28, 56, and 84. Muscle and liver samples were collected at harvest. Hepatic GSSG (P = 0.004), GSH/GSSG ratio (P = 0.030), and GSH-Px (P = 0.004) were affected by Se source x concentration interaction. Oxidized glutathione was higher in the ORG group vs. ING at concentration 2.7 mg supplemental Se/kg DM, but at 0.3 mg supplemental Se/kg DM the ING group was higher than ORG. The liver GSH-Px activity was higher in the ORG group vs. ING at concentration 0.9 and 2.7 mg supplemental Se/kg DM. The GSH/GSSG ratio was the highest in animals fed 0.3 mg supplemental Se/kg DM of ORG. Selenium liver concentration increased linearly with the supplemental Se concentration in the diet (y = 0.0583 + 0.4254x, R 2 = 0.92, P < 0.0001), regardless of source. Total meat cholesterol was greater (P < 0.001) in CON (control) vs. SUP (supplemented, regardless source) group. The muscle GSH-Px activity was higher (P < 0.001) in SUP vs. CON and increased (P < 0.004) with increasing supplemental Se concentrations. There was an increase on VLDL, glucose, and triglycerides in ORG vs. ING (P ≤ 0.035). In general, serum Se was higher (P < 0.001) in SUP vs. CON and increased with increasing supplemental Se concentration. Lastly, the HMGCR concentration was lower (P = 0.002) in SUP (0.39 ng/mL) vs. CON (0.55 ng/mL). Selenium supplementation with different sources and concentrations has the potential to affect cholesterol metabolism by affecting GSH/GSSG ratio, GSH-Px, and the HMGCR.

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Enhancement of clover growth by inoculation of P-solubilizing fungi and arbuscular mycorrhizal fungi

Anais da Academia Brasileira de Ciências ◽

10.1590/s0001-37652010000300023 ◽

2010 ◽

Vol 82 (3) ◽

pp. 771-777 ◽

Cited By ~ 6

Author(s):

Edson L. Souchie ◽

Rosario Azcón ◽

Jose M. Barea ◽

Eliane M.R. Silva ◽

Orivaldo J. Saggin-Júnior

Keyword(s):

Growth Rate ◽

Aspergillus Niger ◽

Arbuscular Mycorrhizal Fungi ◽

Mycorrhizal Fungi ◽

Trifolium Pratense ◽

Arbuscular Mycorrhizal ◽

Randomized Design ◽

Completely Randomized Design ◽

Environment Chamber ◽

And Control

This study evaluated the synergism between several P-solubilizing fungi isolates and arbuscular mycorrhizal fungi to improve clover ( Trifolium pratense) growth in the presence of Araxá apatite. Clover was sown directly in plastic pots with 300g of sterilized washed sand, vermiculite and sepiolite 1:1:1 (v:v:v) as substrate, and grown in a controlled environment chamber. The substrate was fertilized with 3 g L-1 of Araxá apatite. A completely randomized design, in 8×2 factorial scheme (eight P-solubilizing fungi treatments with or without arbuscular mycorrhizal fungi)and four replicates were used. The P-solubilizing fungi treatments consisted of five Brazilian P-solubilizing fungi isolates (PSF 7, 9, 20, 21 and 22), two Spanish isolates ( Aspergillus niger and the yeast Yarowia lipolytica) and control (non-inoculated treatment). The greatest clover growth rate was recorded when Aspergillus niger and PSF 21 were co-inoculated with arbuscular mycorrhizal fungi. Aspergillus niger, PSF 7 and PSF 21 were the most effective isolates on increasing clover growth in the presence of arbuscular mycorrhizal fungi. Greater mycorrhizal colonization resulted in greater clover growth rate in most PSF treatments. PSF 7 was the best isolate to improve the establishment of mycorrhizal and rhizobia symbiosis.

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In vitro antimicrobial activity and alternative control of anthracnose in papaya

Arquivos do Instituto Biológico ◽

10.1590/1808-1657000192018 ◽

2018 ◽

Vol 85 (0) ◽

Author(s):

Héber Ferreira dos Reis ◽

Lilian Maria Arruda Bacchi ◽

Silvana de Paula Quintão Scalon ◽

Jasna Karoliny Pereira Flores

Keyword(s):

Colletotrichum Gloeosporioides ◽

Syzygium Aromaticum ◽

Alternative Control ◽

Ginger Extract ◽

Cinnamomum Zeylanicum ◽

Randomized Design ◽

Completely Randomized Design ◽

And Control

ABSTRACT: We evaluated the efficacy of natural products in the control of papaya anthracnose, in vitro and in vivo. The in vitro experiments for evaluation of mycelial growth used a completely randomized 10 × 4 factorial design (treatments × evaluation periods) with eight replicates, with sporulation evaluated at the end of the experiment. The treatments involved the use of aqueous extract at concentrations of 5 and 15% for Syzygium aromaticum (L.) Merr. & Perry (clove), Cinnamomum zeylanicum Breym (cinnamon), and Zingiber officinalis Rox. (ginger); 1 and 3% chitosan; the fungicide Prochloraz at 100 µg.mL-1; and a control (no treatment). For evaluating conidia germination, we used six treatments with five replicates. The treatments included 7.5% of each extract (clove, cinnamon, and ginger), 1.5% chitosan, and 50 µg.mL-1 of Prochloraz. For the in vivo experiment, “Formosa” papaya “Tainung 1” was used in a completely randomized design, with six treatments and four replicates to evaluate the severity of anthracnose caused by Colletotrichum gloeosporioides. The fruits were treated by immersion for 5 min with 15% clove, cinnamon, and ginger extracts, 8% chitosan, and control with distilled water, and immersion for 2 min in Prochloraz (33.75 g a.i./100 L). The treatments with 15% clove extract and 8% chitosan were effective in all evaluations, resulting in a viable alternative to the fungicide Prochloraz. The treatments with ginger extract were less effective and those with cinnamon offered intermediate control.

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Health quality and germination of Butia capitata seeds treated with bactericide and fungicide

Summa Phytopathologica ◽

10.1590/0100-5405/2128 ◽

2016 ◽

Vol 42 (4) ◽

pp. 303-307

Author(s):

Vander Rocha Lacerda ◽

◽

Diemesson San Tiago Mendes ◽

Fernando da Silva Rocha ◽

Maria de Fátima Gonçalves Fernandes ◽

...

Keyword(s):

Block Design ◽

Transparent Plastic ◽

Randomized Block Design ◽

Randomized Design ◽

Seed Health ◽

High Incidence ◽

Health Quality ◽

Completely Randomized Design ◽

Test Treatments ◽

And Control

ABSTRACT Propagation of “coquinho-azedo” (Butia capitata) is limited due to dormancy and high incidence of fungi in its seeds. The aim of this study was to evaluate the effect of treating “coquinho-azedo” seeds with different concentrations of bactericide and/or fungicide on the incidence of fungi and on the germination of seeds. Thus, B. capitata seeds were immersed in four doses of the bactericide kasugamycin (0, 1.5, 3.0 and 4.5 mL/L) and/or in four concentrations of the fungicide carbendazim+ thiram (0, 2.92, 5.84 e 8.75 mL/Kg), totaling 16 treatments. After the treatments, the operculum was removed from the seeds, which were placed on trays containing autoclaved sand, covered with transparent plastic film and kept in the nursery. In the germination test, treatments were distributed in randomized block design, factorial arrangement of 4x4 (bactericidal doses x fungicide doses), with four replicates of 50 seeds per plot. For the test of seed health quality, the Blotter test was employed in completely randomized design, using 20 replicates and 10 seeds. Health quality and germination were evaluated at 15 and 40 days after the treatment of seeds, respectively. There was no interaction between the bactericide and the fungicide on germination and control of fungi associated with seeds. However, there was an effect of fungicide concentrations on the evaluated parameters. We observed a negative correlation between the concentrations of the fungicide carbendazim + thiram and fungal incidence, and a positive correlation between the fungicide concentrations and seed germination. Therefore, fungicide treatment reduces the fungal incidence and provides better germination of B. capitata seeds.

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THE EFFECTIVENESS OF PROTECTIVE POWER OF STARFRUIT (Averrhoa bilimbi) JUICE IN CATFISH AGAINST MOTILE AEROMONAS SEPTICEMIA DISEASES

Journal of Fish Health ◽

10.29303/jfh.v1i1.152 ◽

2021 ◽

Vol 1 (1) ◽

pp. 6-11

Author(s):

Sefti Heza Dwinanti ◽

Ratu Brata T. Mengkrin ◽

Ade Dwi Sasanti

Keyword(s):

Vitamin C ◽

Feed Efficiency ◽

Fruit Juice ◽

Challenge Test ◽

Feeding Duration ◽

Live Feed ◽

Star Fruit ◽

Randomized Design ◽

Completely Randomized Design ◽

And Control

Starfruit contains active ingredients such as flavonoids, phenols, antioxidants and vitamin C so that it can be used as an immunostimulant in catfish farming activities. Motile Aeromonas Septicemia (MAS) is one of the obstacles that can cause catfish farming losses. This study aims to determine the effect of differences in timing of feeding containing starfruit juice to protect catfish from MAS disease. The study was designed using a completely randomized design (CRD) consisting of 6 treatments (P) in the form of feeding duration containing starfruit for 7 days (P1), 14 days (P2), 21 days (P3), 28 days (P4). and 35 days (P5) and control of feeding without star fruit juice (P0). The research was carried out at the Aquaculture Laboratory, Sriwijya University. The dose of star fruit juice mixed in the feed is 300 mL.Kg-1 while the catfish used is 8-12 cm in size. The challenge test used Aeromonas hydrophilla bacteria with a density of 108 CFU.mL-1 which was injected as much as 0.5 mL.tail-1 intramuscularly. The results showed that administration containing starfruit juice for 28 days provided the best protection. Based on the hematological test the day before and before infection, the delta decreased the hematocrit by 3% and the delta decreased the erythrocyte count by 3,103 cells.mL-1. In addition, live feed after infection was 100%, prevalence was 17.78% and there was no effect of giving starfruit juice on growth and feed efficiency.

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DESENVOLVIMENTO DE OBSTRUÇÕES EM GOTEJADORES E EFICIÊNCIA DO CONTROLE USANDO DOIS TIPOS DE ÁCIDOS

Irriga ◽

10.15809/irriga.2007v12n2p185-191 ◽

2007 ◽

Vol 12 (2) ◽

pp. 185-191

Author(s):

Manoel Januário da Silva Júnior ◽

José Francismar de Medeiros

Keyword(s):

Water Quality ◽

Hydrochloric Acid ◽

Irrigation Water ◽

Drip Irrigation ◽

Variation Coefficient ◽

Irrigation Water Quality ◽

Randomized Design ◽

Before And After ◽

Completely Randomized Design ◽

And Control

desenvolvimento de obstruçõesEM GOTEJADORES e eficiÊnciado controle usando dois tipos de ácidos Manoel Januário da Silva Júnior1; José Francismar de Medeiros21Departamento de Engenharia Rural, Escola Superior de Agricultura "Luiz de Queiroz", Universidade de São Paulo, Piracicaba, SP, [email protected] de Ciências Ambientais, Universidade Federal Rural Do Semi-Árido, Mossoró, RN 1 RESUMO Em irrigação localizada a qualidade da água é fundamental para o desempenho dos emissores. Uma conseqüência é a obstrução que reduz a uniformidade de emissão. Assim, os objetivos deste trabalho foram estudar o efeito da qualidade da água sobre o desenvolvimento de obstruções, bem como testar a eficiência de dois tipos de ácidos no controle dessas obstruções. O experimento foi instalado no delineamento inteiramente aleatorizado, no esquema fatorial 4x2 com duas repetições. Os tratamentos foram quatro tipos de água e dois ácidos (nítrico e clorídrico). Foi feita uma avaliação do sistema antes e outra após a acidificação. Para cada tratamento foram calculados a vazão, o coeficiente de variação de fabricação e a uniformidade de emissão. A qualidade da água de irrigação não influenciou a vazão, o coeficiente de variação de fabricação e a uniformidade de emissão. O uso de ácido nítrico e clorídrico foi eficiente no controle de obstruções. O uso do ácido clorídrico fica limitado a águas com menores teores de bicarbonatos. UNITERMOS: Gotejamento, qualidade de água, uniformidade de emissão, acidificação SILVA JÚNIOR, M. J. da; MEDEIROS, J. F. de. DEVELOPMENT OF DRIPPER CLOGGING AND CONTROL EFFICIENCY USING TWO TYPES OF ACIDS 2 ABSTRACT In drip irrigation water quality is fundamental for emitter performance. Clogging is a consequence that reduces emission uniformity. Thus, this paper aimed to study water quality effect on the development of clogging and efficiency of acid types in clogging control. The experiment was installed in a completely randomized design with a 4x2 factorial scheme and two replications. The treatments were four types of water and two acids (nitric and hydrochloric). System evaluations were made before and after the acidification. For each treatment the following were calculated: flow, manufacturer’s variation coefficient and emission uniformity. Water quality did not affect flow, manufacturer’s variation coefficient and emission uniformity. The use of nitric and hydrochloric acids was efficiency on clogging control. The use of hydrochloric acid is limited to waters with low bicarbonate levels. KEYWORDS: Drip irrigation, water quality, emission uniformity, acidification

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