scholarly journals Potato genotypes and environments under potato in the Brazilian Cerrado biome

2022 ◽  
Vol 52 (5) ◽  
Author(s):  
Aniela Pilar Campos de Melo ◽  
Paulo Marçal Fernandes ◽  
Carlos de Melo e Silva-Neto ◽  
Eli Regina Barboza de Souza ◽  
Ariane Carla Campos de Melo ◽  
...  
Keyword(s):  
Open Field ◽  
Block Design ◽  
Productive Performance ◽  
Brazilian Cerrado ◽  
Cerrado Biome ◽  
Cultivation Systems ◽  
Organic Cultivation ◽  
Field Environment ◽  
Randomized Complete Block Design ◽  
Productive Potential

ABSTRACT: The objective was to estimate the physiological and productive performance of potato genotypes in two organic cultivation systems. Two trials were conducted, being one in a protected and on in an open-field environment. A randomized complete block design with four replicates and five treatments (genotypes ‘Agata’, ‘Atlantic’, ‘BRS Ana’, ‘BRSIPR Bel’ and ‘BRS Clara’) was used. Physiological, productive characteristics and defects associated with tubers were obtained. The protected environment is the most appropriate to produce organic potatoes under the evaluated conditions. Genotypes ‘BRSIPR Bel’ and ‘BRS Ana’ exhibit a high productive potential in organic conditions.

scholarly journals EFFECTS OF CULTIVATION SYSTEMS AND CULTIVARS ON GROWTH AND YIELD PERFORMANCE OF JAPANESE EGGPLANT IN THAILAND

2021 ◽  
Vol 9 (1) ◽  
pp. 36-43
Author(s):  
Karistsapol Nooprom ◽  
◽  
Niranee Bueraheng ◽  
Keyword(s):  
Block Design ◽  
Agricultural Technology ◽  
Growth And Yield ◽  
High Yield ◽  
Cultivation System ◽  
Cultivation Systems ◽  
Organic Cultivation ◽  
Randomized Complete Block Design ◽  
Organically Managed ◽  
Black Beauty

In the current study impacts of different cultivation systems and Japanese eggplant cultivars on their growth and yield were determined. Four Japanese eggplant cultivars viz., ‘Fullness’, ‘Black Beauty’, ‘Wasedaimaru’ and ‘Israel’ were grown under two systems of organic and conventional cultivations from 2 April to 16 July 2018 at the Faculty of Agricultural Technology, Songkhla Rajabhat University, Muang, Songkhla. The experimental arrangement used in this study was split-plots design (SPD) within a randomized complete block design (RCBD) with four replications. Results of the study indicated that ‘Wasedaimaru’ and ‘Fullness’ were suitable for growing under the organically managed production. ‘Wasedaimaru’ grown under an organic cultivation system had a lower yield per plant at 4,444.00g than grown under conventional chemical cultivation at 6,848.40g. The organic yield was not significantly different (p≤0.05) from ‘Fullness’ grown under organic cultivation at 3,947.40g. ‘Wasedaimaru’ and ‘Fullness’ were identified as suitable cultivars for production under organic cultivation in Thailand with high yield.

scholarly journals SOURGRASS INTERFERENCE ON SOYBEAN GROWN IN BRAZILIAN CERRADO

2021 ◽  
Vol 34 (2) ◽  
pp. 350-358
Author(s):  
GUILHERME BRAGA PEREIRA BRAZ ◽  
ALINE GUIMARÃES CRUVINEL ◽  
ALAN BRUNO CANEPPELE ◽  
HUDSON KAGUEYAMA TAKANO ◽  
ALESSANDRO GUERRA DA SILVA ◽  
...  
Keyword(s):  
Plant Growth ◽  
Growth Stage ◽  
Field Experiments ◽  
Production Systems ◽  
Block Design ◽  
Brazilian Cerrado ◽  
Yield Losses ◽  
Soybean Yield ◽  
The Third ◽  
Randomized Complete Block Design

ABSTRACT Sourgrass (Digitaria insularis) is one of the main species causing significant losses in Brazilian soybean production systems. Thus, this paper aimed to evaluate sourgrass interference on soybeans grown under Cerrado conditions. Three field experiments were conducted, of which the first two (E1 and E2) simulated sourgrass after pre-sowing burndown, using plants already emerged by the time soybeans were sown; whereas the third (E3) simulated both sourgrass and soybeans emerged simultaneously. Both E1 and E2 were conducted in a randomized complete block design (RCBD) with five treatments based on sourgrass infestation densities (0, 2, 4, 6, and 8 plants m-2) and four replications. In turn, E3 was also carried out in an RCBD but with treatments arranged in a 2 x 5 factorial and four replications. The first factor comprised two soybean cultivars, while the second was sourgrass density levels, just as in E1 and E2. The results showed that increasing sourgrass densities reduced soybean yield regardless of the plant growth stage when the crop was sown. Yield losses were higher when sourgrass plants were already established by the time soybean was sown. Soybean yield losses reached up to 80% under higher sourgrass infestation levels.

scholarly journals Growth and yield of different leaf-type lettuce cultivars grown in protected and open field cultivation

2017 ◽  
pp. 100-107
Author(s):  
Zenaida Gonzaga ◽  
Lou Mark Fuentes ◽  
Othello Capuno ◽  
Jessie Rom ◽  
Ana Linda Gorme ◽  
...  
Keyword(s):  
Open Field ◽  
Block Design ◽  
The Philippines ◽  
Production Costs ◽  
Growth And Yield ◽  
Vegetable Production ◽  
Leaf Type ◽  
Net Returns ◽  
Randomized Complete Block Design ◽  
Protective Structures

Leafy vegetable production in the Philippines is less diversified than many other countries, especially those used in salads. As a result, Filipino farmers are less familiar with production of leaf-type lettuce that is increasing in popularity with consumers. Therefore, two separate experiments were conducted simultaneously in open field and under bamboo house-type protective structures roofed with plastic to evaluate the performance and profitability of different leaf-type lettuce cultivars. Each study was carried out in randomized complete block design with five treatment cultivars and three replications. Most cultivars grown under protective structures had higher marketable yields than those grown in the open field. Despite plants grown under protective structures incurring higher production costs compared to the open field, higher marketable yields under protective structures resulted in higher net returns. Among the five cultivars, Green Span gave the highest return in the open field and Green Tower under the protective structure. Smaller lettuce cultivars produced lower yields than bigger cultivars.

scholarly journals The use of hydrogen cyanamide or nitrogen fertilizer increases vegetative and productive performance of fig cv. Roxo de Valinhos

2021 ◽  
Vol 43 ◽  
pp. e50519
Author(s):  
Jackson Mirellys Azevedo Souza ◽  
Marcelo de Souza Silva ◽  
Rafael Augusto Ferraz ◽  
Joyce Helena Modesto ◽  
Rafael Bibiano Ferreira ◽  
...  
Keyword(s):  
Nitrogen Fertilizer ◽  
Block Design ◽  
Branch Length ◽  
Plant Production ◽  
Productive Performance ◽  
Hydrogen Cyanamide ◽  
Paulo State ◽  
Randomized Complete Block Design ◽  
Chilling Hours ◽  
Fruit Mass

Some plants do not demand a lot of chilling hours, but methods to overcome dormancy promote more vigorous and productive plant. This study aimed to assess hydrogen cyanamide and nitrogen fertilizer with different concentration to growth and production in ‘Roxo de Valinhos’ fig tree. Two crop cycles (2015/2016 and 2016/2017) was performed in São Manuel city, São Paulo State, Brazil. Phenological and productive data was evaluated in a 2 x 5 factorial (Product x Concentration), organized in randomized complete block design, with three trees by plot. The factor products had as level hydrogen cyanamide and nitrogen fertilizer and the factor concentrations was constituted by 0, 1, 2, 3, and 4%. Furthermore, the following data was evaluated: number of days for budbreak, number of buds per plant, harvest period, branch length and diameter, leaf number, leaf area, number of fruits per plant, fruit mass, production and yield. Results indicated that both products anticipated the sprouting and promoted a higher number of buds overcome the dormancy. Plant production was higher in both cycles when the products were used (2.1 and 2.7, respectively). At last, hydrogen cyanamide showed better outcomes due to the higher number of fruits and production.

scholarly journals Methods of adaptability and stability applied to eucalyptus breeding

2018 ◽  
Vol 53 (1) ◽  
pp. 53-62
Author(s):  
Osmarino Pires dos Santos ◽  
Ivan Ricardo Carvalho ◽  
Maicon Nardino ◽  
Tiago Olivoto ◽  
Alan Junior de Pelegrin ◽  
...  
Keyword(s):  
Factor Analysis ◽  
Field Experiments ◽  
Block Design ◽  
Genetic Breeding ◽  
Breast Height ◽  
Randomized Complete Block Design ◽  
Productive Potential ◽  
The Mean ◽  
Highly Correlated

Abstract: The objective of this work was to evaluate the consistency of the methods of Annicchiarico, Lin & Binns, Wricke, and factor analysis in identifying eucalyptus clones with stability, adaptability, and high productive potential. Eight-four clones, with three years of age, from the genetic breeding program of the company CMPC Celulose Riograndense were used. Three field experiments were carried out in a randomized complete block design, in an 84x3 factorial arragement, with 20 replicates of one plant per plot. The clones were evaluated as to diameter at breast height, plant height, and volume of wood. The methods of Annicchiarico and Lin & Binns are highly correlated with each other, and their use together with the method of Wricke is a sound strategy for the evaluation of eucalyptus clones. The factor analysis identified broadly adaptable clones, and some of them were the same ones identified by the methods of Annicchiarico and Lin & Binns. The use of the mean classification of the clones, along with the factor analysis, is efficient to identify the most adapted, stable, and productive ones among a high number of genotypes.

scholarly journals Productive Potential and Economic Viability of Soybeans in Response to Potassium Application

2020 ◽  
Vol 8 (3) ◽  
pp. 221
Author(s):  
Marina Silveira Batista ◽  
Antônio Veimar da Silva ◽  
Rosilene De Morais da Silva ◽  
Lariza Lustosa de Oliveira ◽  
Carla Michelle da Silva ◽  
...  
Keyword(s):  
Block Design ◽  
Reproductive Stage ◽  
Economic Viability ◽  
Vegetative Stage ◽  
Direct Relation ◽  
Randomized Complete Block Design ◽  
Productive Potential ◽  
Software Risk ◽  
Set Up ◽  
Production Characteristics

The objective of this study was to find the best potassium dose to increase soybean yield, taking into account the economic viability of the crop in the studied region. Sixteen treatments of the interaction between potassium doses (0, 50, 100 and 150 kg ha-1) and application times (sowing, vegetative stage (V3), vegetative stage V3 + reproductive stage (R1) and reproductive stage). The experiment was set up in a randomized complete block design with four replications. Plant growth and production characteristics were analyzed and a preliminary analysis of variance was applied to check the significance of the interactions for each characteristic by Tukey’s test (α = 0.05). Subsequently, the regression analysis was performed using SAS software (2013). The economic analysis was made using the Monte Carlo methodology (Lima, 2008), and processed with the software @Risk 7 (PALISADE, 2016). Potassium fertilization was positive with increase in yield, but there was no direct relation with the application period. The 109 KCl ha-1 dose provided greater economic viability in soybean cultivation.

scholarly journals Produtividade de tomate orgânico cultivado em diferentes ambientes e níveis de insumos

2016 ◽  
Vol 11 (4) ◽  
pp. 44
Author(s):  
Gisley Karoline Emerick Bitancourt Alves ◽  
Antônio Carlos Simões ◽  
Regina Lúcia Félix Ferreira ◽  
Sebastião Elviro Araújo Neto
Keyword(s):  
Block Design ◽  
Fruit Yield ◽  
Marketable Yield ◽  
Low Level ◽  
Ecological Farming ◽  
Field Environment ◽  
Randomized Complete Block Design ◽  
Tomato Cultivars ◽  
Marketable Fruit ◽  
Fruit Mass

A importância alimentar do tomate orgânico aliado a sua baixa produção na Amazônia e a necessidade de baixo uso de insumos para seu cultivo ecológico o objetivo deste trabalho foi avaliar a produtividade de cultivares de tomate orgânico cultivado em campo e ambiente protegido com alto e baixo nível de insumos. Os experimentos foram conduzidos em ambiente protegido e campo, ambos no delineamento em blocos casualizados completos, em esquema de parcelas subdivididas 2 x 3, sendo a parcela principal composta por dois níveis de insumos e a subparcela pelas cultivares copa (Santa Kruz Kada, IPA 6 e Santa Clara), com cinco repetições de cinco plantas cada. As variáveis avaliadas foram: massa média de frutos total e comercial (g fruto-1), número de frutos total e comercial por planta, produtividade total e comercial de frutos (kg ha-1). A cultivar IPA 6 em cultivo protegido exigiu maior uso de insumos para aumentar a massa média de fruto total e comercial, produtividade total e comercial, em campo pode se utilizar baixo nível de insumo. O alto uso de insumos é necessário para aumentar a produtividade total e comercial para a cv. Santa Clara em cultivo à campo, ambiente que também necessita de alto uso de insumos para aumentar a massa média de fruto total e comercial a produtividade comercial da cultivar Santa Kruz. Productivity of organic tomato grown in different environments and levels of inputsAbstract: The importance of organic tomato feed associated with their low production in the Amazon and the need for low input to its ecological farming the objective of this study was to evaluate the productivity of organic tomato cultivars grown in field and greenhouse with high and low level inputs. The experiments were conducted under greenhouse and field conditions, both in randomized complete block design comprising plots subdivided into subplots. The plots encompassed of two levels of inputs, while the subplots contained the (Santa Kruz Kada, 6 and IPA Santa Clara), with five replicates of five plants each. The variables evaluated were: total fruit mass and marketable fruit mass (g fruit-1), number of total and marketable fruit per plant, total and marketable fruit yield (kg ha-1). The cultivar IPA 6 in greenhouse demanded greater use of inputs to increase the total and marketable fruit mass, total and marketable yield in field can be used for low level input. The high use of inputs is necessary to increase the total and marketable yield for cv. Santa Clara in the growing field, environment which also requires high use of inputs to increase the total and marketable fruit mass, marketable fruit yield of cultivar Santa Kruz.

scholarly journals PHOSPHATE FERTILIZATION EFFICIENCY IN SOYBEAN CULTIVARS INDICATED FOR CERRADO TROPICAL SOIL REGIONS

2019 ◽  
Vol 17 (3) ◽  
pp. 45
Author(s):  
Felipe Ferreira Da Silva ◽  
Deurimar Herênio Gonçalves Junior ◽  
Gisellya Da Silva Cruz ◽  
Wallysson Nascimento Lima ◽  
Roldão Carlos Andrade Lima ◽  
...  
Keyword(s):  
Phosphorus Deficiency ◽  
Block Design ◽  
Phosphate Fertilizer ◽  
Dry Mass ◽  
Average Height ◽  
Brazilian Cerrado ◽  
Tropical Regions ◽  
Randomized Complete Block Design ◽  
Phosphate Fertilization ◽  
Use Efficiency

Phosphorus deficiency (P2O5) is among the main abiotic stresses that limit soybean production in cerrado soils. Its low availability in soils, especially in the more weathered and acidic ones, the increased demand and its scarcity estimations leadto the need for the development of cultivars more efficient in the use of this mineral. This experiment was conducted under field conditions in the municipality of Imperatriz, state of Maranhão, Brazil, under planosol conditions, in a randomized complete block design, with treatments arranged in a 2x4 factorial scheme with four replicates, four P levels (0, 60, 120 and 180 kg ha-1), and two soy bean cultivars (BRS 333 RR and BRS 9180 IPRO) indicated for tropical regions or Brazilian cerrado. In this study, P2O5 efficiency use was evaluated based on plant height, shoot dry mass (SDM), pod dry mass (PDM) and number of pods (NP). BRS 333 RR cultivar obtained the highest efficiency with doses of 84.35 kg ha-1 and 94.46 kg.ha-1, producing 696,76.76g e 86,72.06g for SDM and PDM respectively, average height of94.15 cm with 123.98 kh.ha-1 and phosphate fertilizer use efficiency (FUE) of 13%

scholarly journals Kompos Cair sebagai Alternatif Pupuk yang Ramah Lingkungan dalam Produksi Padi

2019 ◽  
Vol 21 (1) ◽  
pp. 1
Author(s):  
Siti Mudmainah ◽  
Dwi Ari Cahyani ◽  
Purwanto Purwanto
Keyword(s):  
Trichoderma Harzianum ◽  
Raw Materials ◽  
Block Design ◽  
Organic Fertilizer ◽  
Nutrient Content ◽  
Growth And Yield ◽  
Compost Tea ◽  
Organic Cultivation ◽  
Randomized Complete Block Design ◽  
Leaf Greenness

<span style="font-size: 10.0pt; line-height: 107%; font-family: 'Arial',sans-serif; mso-fareast-font-family: Calibri; mso-ansi-language: EN-US; mso-fareast-language: EN-US; mso-bidi-language: AR-SA;" lang="EN-US">The development of cheap and easily applied organic fertilizer technology through extraction of fertilizers into liquid organic fertilizer has become one of the simple and inexpensive technological alternatives. The variety of raw materials for making liquid compost will certainly affect nutrient content and useful microbial content. This study was aimed to examine the effect of compost tea from various compost sources enriched with biological agents to improve the growth and yield of rice plants that are cultivated organically. This study used Randomized Complete Block Design with 10 treatments and repeated three times. The treatments tried included p<sub>0</sub>: control; p<sub>1</sub>: <span style="mso-spacerun: yes;"> </span>liquid compost from cow compost; p<sub>2</sub>: <span style="mso-spacerun: yes;"> </span>liquid compost from chicken coop compost; p<sub>3</sub>: liquid compost from mushroom waste; p<sub>4</sub>: <span style="mso-spacerun: yes;"> </span>liquid compost from cow compost + <em style="mso-bidi-font-style: normal;">Pseudomonas flouresence</em>; p<sub>5</sub>: <span style="mso-spacerun: yes;"> </span>liquid compost from compost chicken coop + <em style="mso-bidi-font-style: normal;">Pseudomonas flouresence</em>; p<sub>6</sub>: <span style="mso-spacerun: yes;"> </span>liquid compost from waste mushroom + <em style="mso-bidi-font-style: normal;">Pseudomonas flouresence</em>; p<sub>7</sub>: <span style="mso-spacerun: yes;"> </span>liquid compost from cow compost + <em style="mso-bidi-font-style: normal;">Trichoderma harzianum</em>; p<sub>8</sub>: compost tea from chicken coop compost + <em style="mso-bidi-font-style: normal;">Trichoderma harzianum</em>; p<sub>9</sub>: <span style="mso-spacerun: yes;"> </span>liquid compost from waste of mushroom + <em style="mso-bidi-font-style: normal;">Trichoderma harzianum</em>. The variables observed included plant height, number of tillers, leaf greenness, leaf area, LAI, number of productive tillers, panicle length, number of seeds per panicle, percentage of filled grain, and grain yield. The results showed that the application of <span style="mso-spacerun: yes;"> </span>liquid compost enriched with useful microorganisms had not shown its effect in increasing the growth and yield of Sintanur variety in organic cultivation. The highest yield were achieved in the treatment of liquid compost from baglog mushroom enriched with <em style="mso-bidi-font-style: normal;">Trichoderma harzianum</em> at 3.06 tons ha<sup>-1</sup>.</span>

scholarly journals Nitrogen fertilization in off-season corn crop in different Brazilian Cerrado environments

2020 ◽  
Vol 55 ◽  
Author(s):  
Eduardo de Paula Simão ◽  
Álvaro Vilela de Resende ◽  
Miguel Marques Gontijo Neto ◽  
Alexandre Ferreira da Silva ◽  
Vicente de Paulo Campos Godinho ◽  
...  
Keyword(s):  
Grain Yield ◽  
Nitrogen Fertilization ◽  
Block Design ◽  
Corn Yield ◽  
Brazilian Cerrado ◽  
Economic Return ◽  
Total N ◽  
Starter Fertilizer ◽  
Corn Crop ◽  
Randomized Complete Block Design

Abstract: The objective of this work was to assess the grain yield and the economic response of off-season corn (Zea mays) crop subjected to different combinations of starter and topdressing nitrogen fertilization, in the Brazilian Cerrado region. The experiment was carried out in a randomized complete block design in a 3×4 factorial arrangement (0, 45, and 90 kg ha-1 N at sowing and 0, 22.5, 45, and 90 kg ha-1 N in topdressing as urea), in six environments, combining three sites and two sowing times. Grain yield was determined, and the response to total N applied as starter and topdressing was used to obtain a general model of the average trend of the technical and economic return of fertilization. The corn crop response varied according to the environment, and the observed yields were high. The application of N as a starter fertilizer increased corn yield and improved the effect of topdressing fertilization or even made it unnecessary. Fertilization with 90 kg ha-1 N as urea promotes greater yield and economic return and improves N balance in the soybean/off-season corn crop system.

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