scholarly journals Development and productivity of two beet genotypes for fertilization

2020 ◽  
Vol 19 (3) ◽  
pp. 221-228
Author(s):  
Daniel Mocelin Silveira ◽  
Flávio Corrêa de Carvalho ◽  
Gustavo Pailo Mariano ◽  
André Luiz Oliveira de Francisco
Keyword(s):  
Plant Height ◽  
Aerial Part ◽  
Fresh Mass ◽  
Soluble Solids ◽  
Organic Fertilization ◽  
Horizontal Diameter ◽  
Number Of Leaves ◽  
Solids Content ◽  
The City

Beet needs a high demand of nutrients to improve its development and productivity. The objective of this work was to evaluate the effect of fertilizer forms in the development and productivity of the beet crop. The experiment was carried out in the experimental area of the Fazenda Escola of the Higher Education Center of Campos Gerais, located in the city of Ponta Grossa-PR, between September and November 2018. The experimental design was randomized blocks in a 2x4 factorial scheme [2 genotypes of beet (Boron hybrid and Tall Top Early Wonder cultivar) x 4 forms of fertilization, T1 - control (without fertilization), T2 - poultry litter, T3 - bovine manure and T4 - NPK], containing four repetitions. The harvest was carried out at 75 days after transplanting the seedlings, harvesting five plants from each plot to carry out the analyzes, thus evaluating the number of leaves per plant, height of the aerial part, fresh mass of the aerial part and the root, productivity, horizontal diameter and commercial classification of root, presence of white rings through notes and soluble solids content (ºBrix). Among the different genotypes studied, the cultivar Tall Top Early Wonder was superior in the variables of plant height, fresh mass of roots and leaves and soluble solids, 75 days after transplantation. The cultivar Tall Top Early Wonder responded better, implying the idea that organic fertilization would be an alternative as a source of nutrients in beet production.

scholarly journals Desempenho da rúcula sob condições de sombreamento e níveis de salinidade da água de irrigação

2020 ◽  
Vol 16 (4) ◽  
pp. 38-45
Author(s):  
Rilbson Henrique Silva dos Santos ◽  
Mirandy dos Santos Dias ◽  
Francisco de Assis da Silva ◽  
João Paulo de Oliveira Santos ◽  
Saniel Carlos dos Santos ◽  
...  
Keyword(s):  
Leaf Area ◽  
Plant Height ◽  
Irrigation Water ◽  
Aerial Part ◽  
Saline Water ◽  
Dry Mass ◽  
Family Farming ◽  
Salinity Levels ◽  
Number Of Leaves ◽  
The City

Arugula is a crop of fast vegetative growth and short cycle, widely accepted worldwide. In Brazil, its production generates jobs and income for family farming. However, the use of saline water in the cultivation of this plant is one of the main factors that limit production. Given this situation, the objective of this study was to evaluate the growth of Apreciatta arugula cultivated under conditions of shading and salinity levels of irrigation water. The experiment was conducted in a greenhouse in the experimental area of the Agricultural Sciences Center of the Federal University of Alagoas, in the city of Rio Largo, AL. The treatments were obtained from the combination of two shading conditions (with shading and without shading) and five levels of electrical conductivity of the irrigation water (0.5; 2.0; 3.5; 5.0 and 6.5 dS m-1). The experimental design used was completely randomized in a 2 x 5 factorial scheme. Combined, the factors resulted in 10 treatments with four replications and one plant per plot, totaling 40 experimental units. Arugula plants were evaluated for leaf number, plant height, leaf area and dry matter of the aerial part. Increasing levels of salinity in the irrigation water, lead to a reduction in the number of leaves, plant height and dry mass of the aerial part of arugula plants cultivar Apreciatta. However, the use of shading together with the salinity of irrigation water up to 1.4 dS m-1does not affect the leaf area of arugula plants, being possible to cultivate without considerable losses.

Yield and Characteristics of Melon Fruits under Different Fertilization Management and Soil Cover

2019 ◽  
pp. 1-9
Author(s):  
Jackson Teixeira Lobo ◽  
Witalo da Silva Sales ◽  
José Fabrício Alves Feitosa ◽  
Juscelino Martins Costa Junior ◽  
Reynaldo Teodoro De Fatima ◽  
...  
Keyword(s):  
Soil Cover ◽  
Block Design ◽  
Soluble Solids ◽  
Plastic Mulch ◽  
Organic Fertilization ◽  
Mineral Fertilization ◽  
Randomized Complete Block Design ◽  
Solids Content ◽  
The City ◽  
Best Responses

Aims: To evaluate the 'Canary' and 'Hale's Best Jumbo' melon yield and fruit characteristics as a function of fertilization management and soil cover with mulch. Study Design: The design was a randomized complete block design in a 2x3x2 factorial scheme, with three replications and seven plants per plot. Place and Duration of Study: The experiment was conducted from June to September 2015, at the Center of Agrarian and Biodiversity Sciences of the Federal University of Cariri, located in the city of Crato, Cariri region, Brazil. Methodology: Two varieties of melon ('Canary' and 'Hale's Best Jumbo') were studied under three fertilization managements (mineral fertilization via soil, mineral fertilization via soil + organic fertilization and mineral fertilization via soil + foliar fertilization) with the presence or absence of soil cover with polyethylene mulch. Results: The use of mineral + organic fertilization and mineral + leaf fertilization promoted an increase in fruit mass and yield of approximately 3.93 t ha-1 (25.50%) and 4.64 t ha-1 (30%), respectively. Both melon cultivars presented the best responses grown on plastic mulch, with yield increases of 79.66% and 26.16% for 'Canary' and 'Hale's Best Jumbo', respectively. Moreover, the 'Hale's Best Jumbo' cultivar presented higher soluble solids contents than the 'Canary' melon, with an increase of 11.26% (0.76 ° Brix). Conclusion: The use of soil cover and additional fertilization (organic or foliar) in the cultivation of melon provides an increase in size, mass and productivity, while soil cover increases the soluble solids content in fruits.

scholarly journals Production and quality of okra produced with mineral and organic fertilization

2019 ◽  
Vol 23 (2) ◽  
pp. 97-102
Author(s):  
Hemmannuella C. Santos ◽  
Emmanuel M. Pereira ◽  
Rafael L. S. de Medeiros ◽  
Paulo M. de A. Costa ◽  
Walter E. Pereira
Keyword(s):  
Vitamin C ◽  
Block Design ◽  
Titratable Acidity ◽  
Soluble Solids ◽  
Organic Fertilization ◽  
Randomized Block Design ◽  
Number Of Leaves ◽  
The Mean ◽  
Organic Compost

ABSTRACT Okra, Abelmoschus esculentus (L.) Moench, is a vegetable with annual fruit native to hot regions of Africa, well adapted to the conditions of the Northeast and Southeast regions of Brazil, where it is widely used by small farmers. This study aimed to evaluate the effect of mineral and organic fertilization on the production and quality of okra fruits. The experiment was conducted in randomized block design, with three replicates and eleven treatments defined according to a Baconian matrix. Treatments consisted of doses of N (0, 100, 200 and 300 kg ha-1), P (0, 100, 200 and 300 kg ha-1) and K (0, 80, 160 and 240 kg ha-1), as well as absence and presence of organic compost (30 t ha-1). The following parameters were evaluated: plant height, stem diameter, number of leaves, production of fruits plant-1, number of fruits plant-1, fruit length and diameter and fruit quality (pH, soluble solids, titratable acidity, vitamin C and electrical conductivity). The crop is demanding in terms of K and N fertilizations, with increments of 15.8 and 36% in the mean number and diameter of fruits, respectively. Organic fertilization did not influence the vegetative growth of okra, but was beneficial to the production of fruits with higher vitamin C content, 52% higher than the contents found in fruits produced without such input.

scholarly journals Resistance of bioenergy sorghum to Diatraea saccharalis (Lepidoptera: Crambidae)

2019 ◽  
Vol 35 (4) ◽  
Author(s):  
Octavio Gabryel Araújo ◽  
Simone Martins Mendes ◽  
Michelle Vilella ◽  
Luis Cláudio Paterno Silveira ◽  
Maria Lucia Ferreira Simeone ◽  
...  
Keyword(s):  
Plant Height ◽  
Sweet Sorghum ◽  
Soluble Solids ◽  
Soluble Solids Content ◽  
Infestation Level ◽  
Diatraea Saccharalis ◽  
Biomass Sorghum ◽  
Pest Infestation ◽  
Sorghum Genotypes ◽  
Solids Content

This study evaluated the effects of the sugarcane borer Diatraea saccharalis (Fabricius, 1794) (Lepidoptera: Crambidae) on cultivars of sweet and biomass sorghum for the selection of resistant cultivars. The present work consisted of two trials, with natural pest infestation. In the first one, 10 sweet sorghum cultivars were analyzed for the following variables: plant height, number of healthy and damaged internodes, gallery position and size, stem infestation level and soluble solids content (°Brix). In the second trial, it was analyzed 16 genotypes of high biomass sorghum, with the same variables above mentioned, in addition to the lignin, cellulose and hemicellulose contents. Among sweet sorghum genotypes evaluated, the genotype CMSXS647 stood out due to the traits: plant height, infestation level, gallery size and soluble solids content. Among the sorghum genotypes evaluated, CMSXS7030, CMSXS7012 and CMSXS7028 presented ideal characteristics for infestation level, plant height and number of lignocellulosic compounds. Such information, in addition to supporting the bioenergy sorghum breeding program, will assist in integrated pest management for sorghum cultivation.

scholarly journals PRODUTIVIDADE DO MELÃO RENDILHADO FERTIRRIGADO COM SILÍCIO

Irriga ◽  
2021 ◽  
Vol 1 (2) ◽  
pp. 321-334
Author(s):  
Fernando André Silva Santos ◽  
Roberto Rezende ◽  
Gustavo Soares Wenneck ◽  
Danilo Cesar Santi ◽  
Reni Saath ◽  
...  
Keyword(s):  
Path Analysis ◽  
Cucumis Melo ◽  
Aerial Part ◽  
Dry Mass ◽  
Soluble Solids ◽  
Quadratic Model ◽  
Mato Grosso ◽  
Production Ratio ◽  
Solids Content ◽  
E Mail

PRODUTIVIDADE DO MELÃO RENDILHADO FERTIRRIGADO COM SILÍCIO     FERNANDO ANDRÉ SILVA SANTOS1; ROBERTO REZENDE2; GUSTAVO SOARES WENNECK3; DANILO CÉSAR SANTI3; RENI SAATH2 E DANIELE DE SOUZA TERASSI3   1Professor do departamento de Agronomia, Universidade do Estado de Mato Grosso (UNEMAT), Av. Santos Dumont, s/n, Cidade Universitária, CEP: 78.200-000, Cáceres, Mato Grosso, Brasil. E-mail: [email protected] 2Professor do Departamento de Agronomia, Universidade Estadual de Maringá (UEM), Av. Colombo, 5790, Zona 7, CEP:87020-900, Maringá, Paraná, Brasil. E-mail: [email protected]; [email protected] 3Discente do Programa de Pós-graduação em Agronomia, Universidade Estadual de Maringá (UEM), Av. Colombo, 5790, Zona 7, CEP:87020-900, Maringá, Paraná, Brasil. E-mail:[email protected]; [email protected]; [email protected]     1 RESUMO   O objetivo do trabalho foi avaliar a produtividade e acúmulo de biomassa na cultura do melão rendilhado, cultivado em ambiente protegido sob diferentes condições hídricas e doses de silício (Si). O experimento foi conduzido em blocos casualizados, esquema fatorial 5x2, sendo cinco doses de Si (0, 50, 100, 150 e 200 kg ha-1) e duas condições de reposição hídrica (40 e 100% da evapotranspiração da cultura (ETc)), com quatro repetições. A fertilização com Si foi realizada após início da formação dos frutos. Foram avaliados a produção por planta, teor de sólidos solúveis totais dos frutos, massa seca foliar, caulinar e radicular, e determinado a razão de produção em função da massa seca da parte aérea. Adotou-se análise estatística de trilha para indicar o efeito de cada variável sobre a produção. A aplicação de Si reduziu linearmente a produção por planta na condição de 100% da ETc. Na irrigação deficitária a produção foi descrita em modelo quadrático. As doses de Si afetaram significativamente a partição de assimilados entre frutos. Na parte aérea, ocorreu influência das doses do elemento sob irrigação deficitária. Com base na análise de trilha, a massa seca foliar e caulinar são diretamente relacionadas à produção, independentemente da disponibilidade hídrica.   Palavras-chave: ambiente protegido, Cucumis melo, elemento benéfico, microirrigação.     SANTOS, F. A. S.; REZENDE, R.; WENNECK, G. S.; SANTI, D. C.; SAATH, R.; TERASSI, D. S. PRODUCTIVITY OF MUSKMELON FERTIRRIGATED WITH SILICON     2 ABSTRACT   This work aimed to evaluate the productivity and accumulation of biomass in the culture of muskmelon grown in a greenhouse under different water conditions and doses of silicon (Si). The experiment was conducted in a randomized block, a 5x2 factorial scheme, with five doses of Si (0, 50, 100, 150 and 200 kg ha-1) and two water replacement conditions (40 and 100% of the crop evapotranspiration (ETc)), with four replications. Fertilization with Si was performed after the begriming of fruit formation. The production per plant, total soluble solids content of the fruits, dry leaf, stem and root mass was evaluated, and the production ratio as a function of the dry mass of the aerial part was determined. Path analysis statistics were adopted to indicate the effect of each variable regarding growth on production. The application of Si linearly reduced production per plant in the condition of 100% of ETc, while in deficient irrigation the production described in a quadratic model. The doses of Si significantly affected the partition of assimilates between fruits. Regarding the aerial part, there was an influence of the doses of the element under deficient irrigation. Based on the path analysis, the dry leaf and stem mass are directly related to production, regardless of water availability.   Keywords: greenhouse, Cucumis melo, benefic element, micro-irrigation.

scholarly journals Root Pruning Reduces Photosynthesis, Transpiration, Growth, and Fruiting of Container-grown French-American Hybrid Grapevines

HortScience ◽  
1999 ◽  
Vol 34 (6) ◽  
pp. 1064-1067 ◽  
Author(s):  
D.C. Ferree ◽  
D.M. Scurlock ◽  
J.C. Schmid
Keyword(s):  
Leaf Area ◽  
Net Photosynthesis ◽  
Titratable Acidity ◽  
Dry Weight ◽  
Soluble Solids ◽  
Root Pruning ◽  
Soluble Solids Content ◽  
Total Leaf Area ◽  
Number Of Leaves ◽  
Solids Content

`Seyval blanc' and `Vidal blanc' grapevines (Vitis sp.) grown in large containers were root-pruned at different severities and/or stages of development and the effects on growth of both cultivars and fruiting of `Seyval blanc' were determined. As the severity of root pruning increased, stomatal conductance (gs) and transpiration (E) decreased and the number of wilted leaves increased in both cultivars. In both cultivars, root pruning reduced net photosynthesis (Pn) and E for as long as 18 to 20 days, as well as total leaf area and dry weight of leaves and petioles plus tendrils. The reductions were proportional to the degree of root pruning. A similar pattern existed for cane and root tissue of `Vidal blanc'. As the severity of root pruning increased, berry and cluster weight, and titratable acidity (TA) of `Seyval blanc' decreased. There was no effect of root pruning on berries per cluster, soluble solids content (SSC), or pH of the juice. No interaction was significant for any factor between time of root pruning and fruiting measured on `Seyval blanc' vines. Root pruning at bloom reduced leaf area, number of leaves, and dry weight of petioles, trunks, and canes. Root pruning at veraison had no effect on any vegetative or fruit parameters. Fruiting `Seyval blanc' vines had less leaf area and smaller petiole and cane dry weights than did nonfruiting vines.

scholarly journals Post-harvest behavior of green peppers after pectin methyl esterase and calcium chloride application

2020 ◽  
pp. 213
Author(s):  
Airles Regina da Costa Paixão
Keyword(s):  
Calcium Chloride ◽  
Physicochemical Characteristics ◽  
Fresh Mass ◽  
Soluble Solids ◽  
Pectin Methyl Esterase ◽  
Green Pepper ◽  
Vacuum Infusion ◽  
Post Harvest ◽  
Life Problems ◽  
Solids Content

The green pepper (Capsicum annuum L.) is an important Brazilian vegetable and it is very much appreciated, besides being a source of vitamins, minerals and fibers. However, it has serious post-harvest shelf-life problems, such as tissue softening. The exogenous application of pectin methyl esterase and calcium has been shown to be efficient in maintaining the firmness of several fruits. Thus, the present study had as objective to evaluate the effects of the application of exogenous pectin methyl esterase (PME) and calcium in post-harvest conservation of the cv. Yolo Wander. For this, the green peppers were submitted to vacuum infusion with water, vacuum infusion with 7% of calcium chloride and vacuum infusion of PME associated to 7% calcium chloride, fruits without infusion were used as control. Loss of fresh mass, fruit firmness, peel color, soluble solids content, pH, total acidity and PME activity were evaluated. In relation to the loss of fresh mass there was a significant increase over time in all treatments. Also, according to the results, the fruits not immersed or those immersed in calcium chloride showed greater maintenance of the firmness, as well as smaller variations in the activity of the SME and low levels of organic acids. The vacuum infusion with 7% calcium chloride maintained the firmness and the physicochemical characteristics of the green pepper. However, the application of PME + CaCl2 did not promote the maintaining desirable firmness characteristics for the green pepper.

scholarly journals Agronomic efficiency of ‘Cantaloupe’ melon under different water blades and organic fertilization

2018 ◽  
Vol 9 (3) ◽  
pp. 421-429
Author(s):  
Toni Halan da Silva Irineu ◽  
Lucimara Ferreira de Figueredo ◽  
Janailson Pereira de Figueredo ◽  
Josimar Nogueora da Silva ◽  
Jacinto Rômulo Guedes de Paiva ◽  
...  
Keyword(s):  
Seed Weight ◽  
Branch Length ◽  
Soluble Solids ◽  
Agronomic Performance ◽  
State University ◽  
Organic Fertilization ◽  
Agronomic Efficiency ◽  
Number Of Leaves ◽  
Presence And Absence ◽  
Number Of Seeds

The objective of this study was to evaluate the effect of different irrigation blades on the presence and absence of biofertilizer on the agronomic performance of the ‘Cantaloupe’ melon in the Paraíba backwoods. The work was conducted under field conditions in the Agroecology Sector, belonging to the State University of Paraíba (UEPB), Campus IV. The experimental design was a randomized block using four irrigation blades (60, 80, 100 and 120% - ET0, (mm day-1)) with presence and absence of biofertilizer replicated six times. The following variables were evaluated: main branch length, leaf area, number of leaves, phytomass aerial part, pulp diameter, soluble solids, bark diameter, number of seeds per fruit, seed weight per fruit and weight of 100 seeds. The irrigation blade of 120% of ET0 promoted greater growth and development since biofertilizer application provided a greater number of seeds per fruit and weight of 100 seeds, there was no interaction between the factors studied in both variables evaluated in the Cantaloupe melon.

scholarly journals Use of Packaging for 'Hawaii' Papaya Conservation, Sold at CEASA of São Luís, Maranhão, Brazil

2020 ◽  
Vol 8 (3) ◽  
pp. 384
Author(s):  
Francisco Ivo dos Santos Aguiar ◽  
Francisco Gilvan Borges Ferreira Freitas Junior ◽  
Maria Das Dores Cardozo Silva ◽  
Clotilde De Morais Costa Neta ◽  
Karla Bianca da Costa Macedo ◽  
...  
Keyword(s):  
Seed Mass ◽  
Titratable Acidity ◽  
Fresh Mass ◽  
Soluble Solids ◽  
Pulp Yield ◽  
Soluble Solids Content ◽  
Total Soluble Solids ◽  
Total Titratable Acidity ◽  
Solids Content ◽  
The Individual

Surveys carried out in different microregions of Maranhão highlight papaya as one of the fruits with the postharvest losses estimates. In this context, this study aimed to analyze the efficiency of plastic packaging on postharvest conservation of Hawaii papaya to instruct the Maranhão retail market about viable alternatives to mitigate losses related to this fruit. The papayas were purchased from CEASA of São Luís and sent to the laboratory. Posteriorly, they were randomly separated into 65 groups of 2 units, and then, applying the coverings are made. The experimental design was completely randomized in a split-plot at 4x5 times, with four treatment control [(without packaging), plastic film (FP), hermetic-bag (SH), and perforated-bag (SP)] and five evaluation periods (3, 6, 9, 12, and 15 days of storage); four repetitions and 2-fruits per portion (tray). For the individual biometric characterization, was carried out the measuring of the longitudinal and transverse diameters, fresh mass, pulp yield, seed mass, firmness, and fruit mass loss. Furthermore, for chemical analysis, total soluble solids content, total titratable acidity, and pH were measured. It was found, at the end of the study, that the hermetic-bag is efficient for maintaining the loss of fresh mass, firmness, ripening, total soluble solids content, total titratable acidity, and pH, which are relevant attributes of quality for commercialization of the Hawaii papaya. Therefore, the use of the hermetic-bag is recommended to increase the postharvest shelf life of Hawaii papaya fruit under stored at room conditions and at least for 15 days.

Sign in / Sign up

Export Citation Format

Share Document