scholarly journals Desempenho de cultivares de goiabeiras em ambientes irrigado e sequeiro

2020 ◽  
Vol 16 (2) ◽  
pp. 82-89
Author(s):  
Adriana Novais Martins ◽  
Nobuyoshi Narita ◽  
Eduardo Suguino ◽  
William Hiroshi S. Takata
Keyword(s):  
Nutritional Value ◽  
Block Design ◽  
Soluble Solids ◽  
Productive Performance ◽  
Randomized Block Design ◽  
Production Environments ◽  
Qualitative Variables ◽  
Solids Content ◽  
The One ◽  
Fruit Mass

The fruits of guava (Psidium guajavaL.) are highly appreciated not only for aroma and flavor, but also for nutritional value, being a rich source of vitamin C and can be consumed in naturaor in their industrial forms. The objective of this work was to evaluate the performance of guavacultivars, its initial production and its fruit quality in irrigated and non-irrigated environments. Planting was carried out in February 2016, at 2.0 x 4.5 m spacing, with seedlings formed by cuttings from a commercial nursery. The plants were conducted in the espalier system, with regular prunings for fruiting. It was used a complete randomized block design in a 3 x 2 factorial arrangement, with three cultivars (Tailandesa, Século XXI and Pedro Sato) and two production environments (irrigated and non-irrigated). Productive variables (yield per plant and fruit mass) and qualitative variables (pH and total soluble solids content) were analyzed in the first two crop cycles. The yield and mass of fruits of evaluated cultivars were not affected by the additional irrigation of the plants. The irrigation has decreased the pH and the level ofsoluble solids content of the fruits. The 'Tailandesa' guava cultivar was the one that presented the best productive performance for cultivation in the region of Vera Cruz, SP.

scholarly journals Melon fruit yield and quality as a function of doses and times of biostimulant application

2020 ◽  
Vol 9 (7) ◽  
pp. e130973911
Author(s):  
Roberto Cleiton Fernandes de Queiroga ◽  
Zaqueu Lopes da Silva ◽  
Odair Honorato Oliveira de ◽  
Elidayane da Nóbrega Santos ◽  
Higínio Luan Oliveira Silva ◽  
...  
Keyword(s):  
Block Design ◽  
Fruit Production ◽  
Soluble Solids ◽  
Application Time ◽  
Time Of Application ◽  
Yield And Quality ◽  
Randomized Block Design ◽  
Semi Arid Region ◽  
Fruit Mass

The objective of this study was to evaluate the productivity and quality of melon fruits as a function of the dose and time of application of biostimulant in the conditions of the semi-arid region of Paraíba. The experiment was carried out at the Federal University of Campina Grande, campus of Pombal - PB, Brazil, in a randomized block design in a 4 x 5 split plot scheme, with doses of biostimulant (0; 0.5; 1.0; 1, 5 and 2.0 L ha-1) and in the subset of the biostimulant application times (15; 20; 25 and 30 days before harvest - DAC), in four replications. Characteristics related to fruit production and quality were evaluated. There was no interaction between the factors of dose and application time of the biostimulant in any of the evaluated characteristics. Thus, the highest estimated values of number of fruits per plant, fruit mass and total melon production were obtained with the application of doses ranging from 0.9 to 1.5 L ha-1 and at the time of application it varied from 22,5 to 23.6 DAC. The content of soluble solids increased 5.5% when the biostimulant dose of 2.0 L ha-1 was used and 4.4% when the product was applied 15 days before harvest.

scholarly journals SELECTION VIA MIXED MODELS IN SEGREGATING GUAVA FAMILIES BASED ON YIELD AND QUALITY TRAITS

2017 ◽  
Vol 39 (2) ◽  
Author(s):  
SILVANA SILVA RED QUINTAL ◽  
ALEXANDRE PIO VIANA ◽  
BIANCA MACHADO CAMPOS ◽  
MARCELO VIVAS ◽  
ANTONIO TEIXEIRA DO AMARAL JÚNIOR
Keyword(s):  
Block Design ◽  
Total Yield ◽  
Ascorbic Acid Content ◽  
Fruit Weight ◽  
Soluble Solids ◽  
Pulp Yield ◽  
Individual Level ◽  
Selection Accuracy ◽  
Randomized Block Design ◽  
Solids Content

ABSTRACT Aiming at the generation of new guava varieties with superior attributes, we conducted this study adopting the REML/BLUP procedure at individual level. Seventeen segregating guava families were evaluated in a randomized-block design with two replicates and 12 plants per plot. Families were obtained after controlled biparental pollination. The studied individuals showed high genotypic variance for fruit weight (FW), total yield (YLD), and ascorbic acid content (AAC). The heritability coefficients of the mean of progenies led to high progeny-selection accuracy for pulp yield (PY), soluble solids content (SSC), in addition to FW, YLD, and AAC; moderate accuracy for fruit acidity (FA) and SSC/FA ratio; and low accuracy for mesocarp thickness (MT) and pH. Selection among families (h2mp) indicated the highest values for FW, PY, YLD, SSC, and AAC, revealing that, for the present study, this practice would be effective, since these traits allowed for the highest selection accuracy values among families. As for the ranking of individuals, families originating from crosses UENF 1835 × UENF 1834, UENF 1831 × UENF 1832, and UENF 1831 × UENF 3739 stood out, occupying the first positions for most traits.

Strategies for Increasing the Apple Epidermis Red Colored with Physiogrow® Color

2019 ◽  
pp. 1-7
Author(s):  
Gentil Carneiro Gabardo ◽  
Lucas Pessoa de Freitas ◽  
Rafael Hermenegildo Contini ◽  
Eder Farina ◽  
Keli Cristina dos Santos ◽  
...  
Keyword(s):  
Block Design ◽  
Soluble Solids ◽  
Plant Production ◽  
Growing Seasons ◽  
Randomized Block Design ◽  
Midwest Region ◽  
Second Year ◽  
Fruit Mass ◽  
Red Coloration

Aims: Evaluate different dosages and number of applications of the commercial product Physiogrow® Color on the percentage of red coloration of the epidermis, productivity and fruit quality in 'Royal Gala' apple trees, in the Midwest region of the state of Santa Catarina, Brazil. Study Design: The experiment was arranged in a randomized block design with five replications. Place and Duration of Study: The experiment was carried out in the municipality of Fraiburgo-SC, Brazil (latitude 27º01'S, longitude 50º77’ W, altitude 950 meters), during the growing seasons of 2017/2018 and 2018/2019. Methodology: The treatments  were: Control (No application), Physiogrow® color (4, 8 and 12 L ha-1) 7 days before harvest (DBH), Physiogrow® Color 2 L ha-1 (30 DAC) + 2 L ha-17 DBH, Physiogrow® Color 4 L ha-1 (30 DBH) + 4 L ha-17 DBH, and Physiogrow® Color 6 L ha-1 (30 DBH) + 6 L ha-1 7 DBH. The variables evaluated were: Production (kg plant-1 and fruits plant-1), average fresh fruit mass (g), classification of fruits by percentage of red coloration of the epidermis (<50%, 50-80% and > 80%), firmness of the pulp (lb in-2) and soluble solids (°Brix). The harvest was carried out on January 25, 2018 and February 16, 2019, first and second year, respectively. Plant production, as well as pulp firmness of fruits, were not affected by treatments, in both years. Physiogrow® Color promoted better distribution of fruits in categories of greater red coloration of the epidermis and reduction of the percentage of fruits in the category with coloration inferior to 50%, although a different behavior among the harvests was observed. The application of Physiogrow® Color 8 L ha-1 7 DBH contributes to the improvement of the coloration of ‘Royal Gala’ apples.

scholarly journals Intrapopulation recurrent selection by mixed models in papaya of the formosa group

2018 ◽  
Vol 40 (3) ◽  
Author(s):  
Sarah Ola Moreira ◽  
Karin Tesch Kuhlcamp ◽  
Fabíola Lacerda de Souza Barros ◽  
Moises Zucoloto ◽  
Alyce Carla Rodrigues Moitinho
Keyword(s):  
Mixed Models ◽  
Recurrent Selection ◽  
Block Design ◽  
Soluble Solids ◽  
Genetic Gains ◽  
Selection Strategies ◽  
Randomized Block Design ◽  
Effective Selection ◽  
Solids Content ◽  
The Individual

Abstract Few cultivars of papaya from the Formosa group are available to producers, and the development of new genotypes is indispensable. Thus, the use of effective selection strategies to obtain more productive cultivars and better quality fruits is also necessary. The aim of this study was to select of half-sib families (HSF) of papaya using the methodology of mixed models. Nineteen HSFs from the Incaper’s papaya breeding program were evaluated in a randomized block design with five replicates and nine plants per plot. The selection was made based on fruit mass (FM), pulp thickness (PT), soluble solids content in pulp (SS) and number of fruits (NF). The genetic parameters and genotypic values were estimated by the REML/BLUP procedure. The selected HSFs increased FM by 26.1%; the PT in 10.5%; the SS in 7.5% and; the NF in 13.0%. The additive heritability within the progenies and the individual variation coefficient obtained indicate that the selection between and within the HSFs can provide greater genetic gains. The selection based on the REML/BLUP methodology was efficient to obtain simultaneous genetic gains for all variables under study despite the negative correlation between them.

scholarly journals Quality of Italian tomatoes grown with different forms of calcium application

2020 ◽  
Vol 9 (12) ◽  
pp. e10191210837
Author(s):  
Isa Gabriela Vieira de Andrade ◽  
Gilmário Noberto de Souza ◽  
Eduardo Santana Aires ◽  
Ítala Laiane Silva Gomes ◽  
Ruy de Carvalho Rocha ◽  
...  
Keyword(s):  
Block Design ◽  
Titratable Acidity ◽  
Soluble Solids ◽  
Fruit Firmness ◽  
Post Harvest ◽  
Randomized Block Design ◽  
Randomized Design ◽  
Tree Fruits ◽  
Fruit Mass

Tomato is one of the most consumed vegetables in the world. This work aimed to evaluate post-harvest quality of Italian Saladete tomatoes grown in a protected environment, with different ways of calcium application, in the Middle São Francisco Valley. Consisting of five Italian tomato hybrids (Anjico, Gabrielle, Liberty, Ty 2006 and Shanty), and three different ways of calcium application (T0 without application of calcium; T1 application of calcium in the opening flower, and T2 weekly application of calcium in the fruit).  Poductivity, average fruit mass, incidence of apical rot, fruit firmness, soluble solids (SS), titratable acidity (AT), and pH, were analized. The experimental design used was a completely randomized block design in a factorial scheme (five cultivars x three ways of calcium application), with three repetition and using two central plants as useful plot for analysis, except for fruit firmness that was carried out in a completely randomized design, using tree fruits per analysis. According to the results obtained, hybrids of Italian saladete tomatoes behaved in a satisfactory manner, therefore it is recommended to cultivate hybrids of Italian saladete tomatoes in the Middle São Francisco Valley, mainly hybrid Anjico. Calcium application way did not interfere with post-harvest attributes.

scholarly journals Agronomic performance of fig plants grown with different numbers of branches

2021 ◽  
Vol 48 (1) ◽  
pp. 14-20
Author(s):  
Vander Mendonça ◽  
◽  
Francisco Sidene Oliveira Silva ◽  
Anderson Araujo Alves ◽  
Elania Guadalupe Paiva Martins ◽  
...  
Keyword(s):  
Vitamin C ◽  
Block Design ◽  
Titratable Acidity ◽  
Fruit Weight ◽  
Climatic Conditions ◽  
Soluble Solids ◽  
Randomized Block Design ◽  
Maturation Index ◽  
Solids Content ◽  
Number Of Branches

Fig production and quality are associated with the number of branches per plant and may vary among regions according to the climatic conditions and crop management. In this work, we studied the influence of the number of branches per plant on the production and fruit quality of 'Roxo de Valinhos' figs under semiarid conditions. The experiment was carried out at the didactic orchard of Federal Rural University of Semiarid (UFERSA), Mossoró city, Rio Grande do Norte state, Brazil. Fig plants were grown with 6, 12, 18, or 30 branches in a completely randomized block design with four replicates and four plants per plot. Plants without thinning were also cultivated as controls. The number of fruits per plant, productivity, fruit length, fruit diameter, and fruit weight were evaluated. Additionally, fruit firmness, titratable acidity (TA), soluble solids content (SS), maturation index (SSC/TA), and vitamin C content were analyzed. The results showed that plants cultivated with 12, 18, and 24 branches produced fruits with higher weight, more fruits per branch, and more fruits per plant and thus were more productive. Additionally, fruits showed a high vitamin C content and maturation index

scholarly journals Use of colored agrotextiles and length of stay in the cultivation of yellow melons

2021 ◽  
Vol 10 (6) ◽  
pp. e44610615951
Author(s):  
Odair Honorato de Oliveira ◽  
Roberto Cleiton Fernandes de Queiroga ◽  
Franciscleudo Bezerra da Costa ◽  
Evandro Franklin de Mesquita ◽  
Francisco Alves da Silva ◽  
...  
Keyword(s):  
Length Of Stay ◽  
Block Design ◽  
Soluble Solids ◽  
Semiarid Region ◽  
Average Temperature ◽  
Lengths Of Stay ◽  
Randomized Block Design ◽  
Total Productivity ◽  
Fruit Mass ◽  
Production Characteristics

The coverage of plants with agrotextiles of different colors and length of stay may influence the productivity of the crop. The objective of this study was to evaluate the influence of the use of colored agrotextiles and their length of stay on the cultivation of melon plants in the conditions of the semiarid region of Paraíba. The experiment was fulfilled out at the Experimental Farm of the Federal University of Campina Grande, located in the municipality of São Domingos – PB.  The treatments were distributed in a randomized block design in a 4 x 4 factorial scheme, with four repetitions and consisting of four colors of agrotextile (orange, white, gray, and blue) and four lengths of stay (15, 18, 21, and 24 days after transplanting).  The following characteristics were evaluated: active photosynthetic radiation, average temperature, number of fruits per plant, average fruit mass and total productivity. The use of colored agrotextiles associated with the length of stay promoted a change in the production characteristics of the yellow melon fruits. The highest productivity, number of fruits, and mass of the melon fruits were obtained when the plants were covered with the orange-colored agrotextile at 15, 18, and 24 days after transplantation, respectively. The long stay of the agrotextile affected the content of total soluble solids.

scholarly journals Cucumber production under organic cultivation in response to biofertilizer application

2020 ◽  
Vol 11 ◽  
pp. e3443
Author(s):  
Gabriela da Silva Tamwing ◽  
Sebastião Elviro de Araújo Neto ◽  
Greta Marino ◽  
Andressa Sampaio Marreiro ◽  
Regina Lúcia Félix Ferreira
Keyword(s):  
Block Design ◽  
Organic Production ◽  
Experimental Unit ◽  
Productive Performance ◽  
Ecological Site ◽  
Organic Cultivation ◽  
Randomized Block Design ◽  
Cucumber Yield ◽  
Quality Categories ◽  
Fruit Mass

Cucumber is a vegetable species of high socioeconomic importance, whose fruits are consumed in all Brazilian regions. However, the knowledge of its organic production is still incipient. In this perspective, this study aimed to evaluate the productive performance of the Aodai cucumber under organic cultivation in response to the application of biofertilizer via soil and leaves. The experiment was conducted in the Seridó Ecological Site, Rio Branco, AC, by adopting a randomized block design in a 6x2 factorial arrangement, with four replications and eight plants per experimental unit. The treatments consisted of six concentrations of biofertilizer (0, 1, 2, 3, 4, and 5%) diluted in water, applied via foliar spraying, combined with the presence or absence of its pure application in the soil, with both methods applied at 7, 14, 21, and 28 days after sowing. The fertilizer was also applied in the soil at sowing. At the end of each harvest, the fruits were divided into two quality categories (classes 1 and 2), and then the following variables were evaluated: number of fruits per plant, mean fruit mass, yield, fruit diameter, and fruit length. There was no significant interaction of the biofertilizer application via foliar spraying or soil for any of the variables. The biofertilizer application via foliar spraying promoted a significant increase in the number of marketable fruits per plant, mean mass of total fruits, and marketable and total yields. The 3% concentration of biofertilizer diluted in water and applied on the leaves is the most efficient method to increment the cucumber yield.

scholarly journals SOIL MULCHING AND DEFICIT IRRIGATION WITH WASTEWATER IN THE QUALITY OF ITALIAN ZUCCHINI

2020 ◽  
Vol 7 (3) ◽  
pp. 73-80
Author(s):  
Carolina Carvalho Rocha Sena ◽  
Anamaria Achtschin Ferreira ◽  
Zeuxis Rosa Evangelista ◽  
Kari Katiele Souza Araujo
Keyword(s):  
Block Design ◽  
Titratable Acidity ◽  
Soluble Solids ◽  
Microbiological Analysis ◽  
Black And White ◽  
Randomized Block Design ◽  
Irrigation Depth ◽  
Evaporation Pan ◽  
Solids Content

Conscious agricultural management, which aims to conserve natural resources, has been the target of contemporary agriculture. In this context, the reuse of water in deficit water depth in agricultural irrigation becomes a viable technique, and this work aimed to evaluate the effect of different irrigation depths with wastewater and soil mulching on the microbiological and postharvest characteristics of the Italian zucchini. The experiment was conducted in the field conditions with a randomized block design in a split-plot arrangement. Four irrigation depths (100%, 85%, 70%, and 55% of the estimated ETc from the Class A Evaporation Pan) and three types of soil mulching (rice husk, double-sided black and white polyethylene film, and uncovered soil) were analyzed. Texture, titratable acidity (TA), soluble solids content (ºBrix), pH, and the ºBrix:TA ratio of the Italian zucchini were analyzed, besides the microbiological analysis. The irrigation depth or soil mulching did not influence the pH of the Italian zucchini. The uncovered soil promoted higher titratable acidity to the Italian zucchini. The texture of the fruit, the soluble solids, and the ºBrix:TA ratio was influenced by the types of soil mulching and irrigation depths. The use of wastewater for drip irrigation reduces the effects of the microbial load on the crop.

scholarly journals Tomato progenies selection in Rondônia, Brazil

2019 ◽  
Vol 37 (1) ◽  
pp. 106-111
Author(s):  
Maria José Marques ◽  
Juliana de Fátima Vizú ◽  
Danilo F da Silva Filho ◽  
César Augusto Ticona-Benavente
Keyword(s):  
Significant Variation ◽  
Fruit Set ◽  
Block Design ◽  
Fruit Size ◽  
Seed Mass ◽  
The State ◽  
Soluble Solids ◽  
Randomized Block Design ◽  
Pericarp Thickness ◽  
Fruit Mass

ABSTRACT This study aimed to select endogamic progenies of tomato cv. Yoshimatsu and to conduct a progeny test in the state of Rondônia. The experiment was carried out in a randomized block design with four replicates and eight plants per plot, spacing 1x0.5 m, with one stem. A significant variation was observed among the fifteen progenies for productivity (2.0-5.5 kg plant-1), seed mass with placenta (18-31.5 g fruit-1), number of fruits per plant (18.8-38.7) and soluble solids (3.4-4.2°Brix). No significant variation was noticed for fruit size, pericarp thickness, number of locules, pH, number of flowers and fruit set, though. P6 progeny showed to be the most productive one (110 t ha-1): average fruit mass was 142.5 g, salad type tomato, 7.5 locules, 3.5°Brix, pH 4.2, 60.9 flowers per plant and 64.2% fruit set. Thus, these data show genetic variability of cultivar Yoshimatsu, being possible to obtain lines and/or cultivars with medium to large fruits adapted to the state of Rondônia.

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