scholarly journals APLICAÇÃO DE DIFERENTES DOSES DE SILÍCIO NA CULTURA DO CRAMBE

2015 ◽  
Vol 4 (2) ◽  
Author(s):  
Vinicius Roberto Guedes ◽  
Ana Paula Morais Mourão Simonetti ◽  
Helton Aparecido Rosa
Keyword(s):  
Statistical Analysis ◽  
Plant Height ◽  
Analysis Of Variance ◽  
Mass Number ◽  
Dry Mass ◽  
Crambe Abyssinica ◽  
Tukey Test ◽  
Crop Cycle

The Crambe (Crambe abyssinica) is a brassicaceae from Ethiopia, and adapted in Mediterranean, its most important feature is about the production of vegetal oil. However, for being a culture recently widespread in Brazil, a few studies are found in literature about the effects and benefits of n in crambe’s culture. This work was conducted at the Farm School Assis Gurgacz College (FAG) in Cascavel - Paraná and aimed to evaluate the effect of silicon on productive aspects of crambe.. Was used the completely randomized desing, that the treatement was divide in: T1 – control; T2- syrup of silícon 0,10% with 2 aplications; T3 - syrup of silicon 0,15% with 3 aplications; T4 - silicon with inseticide and  T5 - only inseticide, that was recomendaded for this culture, resulting 20 parcels. Were evaluated after the crop cycle parameters: plant height, root dry mass, number of grains per plant and weight of 100 grains. Statistical analysis consisted of analysis of variance (ANOVA), and the treatment means were compared by Tukey test at 5% significance with the help of ASSISTAT software. The use of silicon did not influence positively the production of crambe parameters, except for the number of grains. 

scholarly journals EMERGÊNCIA E SOBREVIVÊNCIA DE PLANTAS DE SOJA A CAMPO EM RELAÇÃO ÀS PROFUNDIDADES E ÉPOCAS DE SEMEADURA

2020 ◽  
Vol 35 (2) ◽  
pp. 150-157
Author(s):  
Patrícia Pereira Dias ◽  
Saulo Fernando Gomes de Sousa ◽  
Paulo Roberto Arbex Silva ◽  
Tiago Pereira da Silva Correia ◽  
Anderson Ravanny de Andrade Gomes
Keyword(s):  
Glycine Max ◽  
Statistical Analysis ◽  
Field Experiment ◽  
Analysis Of Variance ◽  
Early Stage ◽  
Soybean Seed ◽  
Sowing Depth ◽  
Tukey Test ◽  
Glycine Max L ◽  
Soil Deposition

A PROFUNDIDADE DE SEMEADURA DA SOJA NA PLANTABILIDADE   PATRÍCIA PEREIRA DIAS1*, SAULO FERNANDO GOMES DE SOUSA2, PAULO ROBERTO ARBEX SILVA3, TIAGO PEREIRA DA SILVA CORREIA4 e ANDERSON RAVANNY DE ANDRADE GOMES5   * Parte do texto foi extraído da tese da autora 1 Departamento de Produção Vegetal, Universidade Estadual Paulista ‘Júlio de Mesquita Filho’ - Av. Universitária, 3780 - Altos do Paraíso, 18610-034, Botucatu - SP, Brasil. [email protected] 2 Agroefetiva, Rua Lourival Ferreira, 11 - Distrito Industrial III, 18608-853, Botucatu - SP, Brasil.  [email protected] 3 Departamento de Engenharia Rural e Socioeconomia, Universidade Estadual Paulista ‘Júlio de Mesquita Filho’ - Av. Universitária, 3780 - Altos do Paraíso, 18610-034, Botucatu - SP, Brasil.  [email protected] 4 Faculdade de Agronomia e Medicina Veterinária, Universidade de Brasília, Caixa - Campos Universitário Darci Ribeiro ICC – Asa Norte, 04508, Brasília - DF, Brasil. [email protected] 5 Faculdade Regional da Bahia, Rodovia AL 220, 3630 - Senador Arnon De Melo - Planalto, Arapiraca – AL, Brasil. [email protected]   RESUMO: O objetivo deste trabalho foi avaliar a cultura da soja semeada a campo em diferentes profundidades das sementes e épocas de semeadura e, dessa maneira, saber o quanto esses fatores influenciam a emergência e sobrevivência das plantas. O experimento foi conduzido em dois anos agrícolas, 2015/16 e 2016/17, com sementes de soja cultivar 5D634, na Fazenda Lageado, da Faculdade de Ciências Agronômicas – UNESP, Botucatu (SP), Brasil. O delineamento foi de blocos ao acaso em esquema fatorial 6 × 2, com seis tratamentos referentes às profundidades das sementes na mesma linha de semeadura: 0,02, 0,05 e 0,08 m do nível do solo, e combinação e alternância entre eles: 0,02 e 0,05, 0,02 e 0,08, 0,05 e 0,08 m e duas épocas de semeadura: outubro e novembro, com quatro repetições, totalizando 48 parcelas. Para a análise estatística, os dados foram submetidos à análise de variância (ANOVA), utilizando o teste de Tukey a 5% de probabilidade. A perda foi acima de 10% no estande de plantas na semeadura mais profunda (0,08 m), aliada à menor precipitação (outubro/2016), que contribuiu significativamente para esse resultado. Desta forma, a plantabilidade é prejudicada com o erro da profundidade de semeadura, aqui representada pela emergência e sobrevivência de plantas.   Palavras-chave: Glycine max L., Plantabilidade, Estande de plantas.   THE SOYBEAN SOWING DEPTH IN PLANTABILITY   ABSTRACT: The aim of this work was evaluate the sowing of soybean seed with error in soil deposition and different month of sowing. The field experiment was carried out during two years (2015 and 2016) at Fazenda Lageado, Faculty of Agronomic Sciences - UNESP / Botucatu - SP, Brazil. The plots were randomized blocks in 6 × 2 factorial, six treatments referring to the depth of the seeds in soil: 0.02 (T1); 0.05 (T2 - control) and 0.08 (T3); 0.02 and 0.05 (T4); 0.02 and 0.08 (T5); 0.05 and 0.08 m (T6) and two sowing times: October and November. For statistical analysis the data were submitted to analysis of variance (ANOVA) using Tukey test at 5% probability. The number of plants in early stage decreased by over 10% in the deep seeding (0.08 m), added to the less rainfall (October / 2016) which contributed significantly to this result. Therefore, plantability is damaged by the error of sowing depth, represented here by the emergence and survival of plants.   Keywords: Glycine max L., Plantability, Early stage.

scholarly journals Allelopathic Effect of Crambe (Crambe abyssinica) Extract on Corn Seedlings

2019 ◽  
Vol 11 (5) ◽  
pp. 314
Author(s):  
Bruna de Villa ◽  
Reginaldo Ferreira Santos ◽  
Deonir Secco ◽  
Jair Antonio Cruz Siqueira ◽  
Luciene Kazue Tokura ◽  
...  
Keyword(s):  
Dry Mass ◽  
Allelopathic Effect ◽  
Soil Physics ◽  
Leaf Extracts ◽  
Initial Development ◽  
Crambe Abyssinica ◽  
Tukey Test ◽  
Shoot Mass ◽  
Plant Evaluation ◽  
Different Parts

The crambe crop is an interesting option for the production of biodiesel, mainly due to the high oil content (35%) and the corn one of the most implanted crops in Brazil. Thus, the objective of this work was to evaluate the allelopathic effect of crambe in the initial development of maize. The experiment was carried out in the laboratory of seed and plant evaluation (LASP) and laboratory of soil physics (LAFIS) of UNIOESTE-Cascavel. The seeds of corn with germination of 93.5% were submitted to four concentrations plus the control in the different parts of the crambe plant, where the growth and mass of corn were valued. The experimental design was completely randomized with 4 replicates per treatment. The statistical analysis consisted of analysis of variance and the means of the treatments were compared by the Tukey test at 5% of significance. The extract of the whole crambe plant stimulated aerial length, root length, fresh and dry mass of corn shoot. Root, stem and leaf extracts inhibited the initial development of maize in relation to growth and fresh and dry shoot mass.

scholarly journals Profundidade de semeadura no desenvolvimento inicial de pseudocereais

2016 ◽  
Vol 11 (2) ◽  
pp. 182
Author(s):  
Daniele Brandstetter Rodrigues ◽  
Thais D'Avila Rosa ◽  
Jonas Albandes Gularte ◽  
Diego Cardoso de Medeiros ◽  
Lilian Vanusa Madruga de Tunes
Keyword(s):  
Experimental Design ◽  
Analysis Of Variance ◽  
Seedling Emergence ◽  
Dry Mass ◽  
Probability Of Error ◽  
Initial Development ◽  
Sowing Depth ◽  
Tukey Test

<p class="Default">O objetivo deste trabalho foi avaliar a influência da profundidade de semeadura na emergência de plântulas de sementes de  amaranto e quinoa. Foram avaliados os efeitos das profundidades de 0; 0,5; 1,0; 1,5 e 2,5 cm para amaranto e de 0; 1,5; 2,5; 3,5; e 4,5 cm para quinoa, obtidas por meio de anéis de pvc, com espessura equivalente a estes valores, que foram imersos no substrato para simular as profundidades de semeadura. O delineamento experimental foi inteiramente casualizado, com quatro repetições. Os dados foram submetidos à análise de variância e as médias, comparadas pelo teste de Tukey com 5% de probabilidade de erro. Foram realizados os testes de germinação, primeira contagem de germinação, emergência de plântulas em bandejas, massa de matéria seca e peso de mil sementes. A profundidade de semeadura para o melhor desenvolvimento inicial indicada para amaranto é de até 1,5 cm, e para quinoa até 2,5 cm.</p><p align="center"><strong><em>Seeding depth in the initial development of pseudocereals</em></strong></p><p class="Default"><strong>Abstract</strong><strong>: </strong>The objective of this study was to evaluate the influence of sowing depth on emergence of amaranth and quinoa seeds seedlings. The effects of the depths of 0; 0.5; 1.0; 1.5 and 2.5 cm and amaranth 0; 1.5; 2.5; 3.5; quinoa and 4.5 cm, obtained from PVC rings with a thickness equivalent to these values, which were immersed in the substrate to simulate the sowing depths. The experimental design was completely randomized, with four replications. The data were submitted to analysis of variance and the means were compared by Tukey test at 5% probability of error. The germination tests were carried out, first count, seedling emergence on trays, dry mass and weight of a thousand seeds. The seeding depth for the initial development best suited for Amaranthus is up to 1.5 cm, and quinoa to 2.5 cm. </p><p><strong> </strong></p>

scholarly journals Growth and production of basil under different luminosity and water replacement levels

2020 ◽  
Vol 38 (3) ◽  
pp. 324-328
Author(s):  
Rívia de Souza Vaz Oliveira ◽  
Leandro Caixeta Salomão ◽  
Hélber Souto Morgado ◽  
Cleiton Mateus Sousa ◽  
Henrique Fonseca E de Oliveira
Keyword(s):  
Plant Height ◽  
Dry Mass ◽  
Crop Evapotranspiration ◽  
Tukey Test ◽  
Stalk Diameter ◽  
Water Replacement ◽  
Number Of Leaves ◽  
Fresh And Dry Mass ◽  
Different Levels ◽  
System Volume

ABSTRACT Basil is used as spice and for medicinal purposes. Its growth is influenced by environmental factors, mainly soil moisture and air temperature. Thus, this study was installed to evaluate growth and production of basil under different levels of luminosity and water replacement. The experimental design was completely randomized, with six replicates, arranged in split plot scheme, with three luminosity levels in the plots (full sun, 50% and 70% shading) and four water replacement levels in the subplots (25, 50, 75 and 100% ETc). We evaluated plant height, stalk diameter, number of leaves and branches, root system volume, the largest root length, fresh and dry mass of roots and leaves. Data were submitted to variance analysis to observe significant differences between treatments and interactions. Luminosity effects were evaluated using Tukey test (p≤0.05%) and the effects of water regime, with the aid of regression analysis. According to data, 50% shading and 100% water replacement, lost through crop evapotranspiration, resulted in higher values of plant height, stalk diameter, branch growth, fresh and dry mass of leaves, and number of leaves. Full sun environment and 100% water replacement provided an increase in root dry mass and volume.

scholarly journals Effect of growth retardants on the growth and flowering of Chrysanthemum morifolium cv. Flirt

2018 ◽  
Author(s):  
Irfana Amin Qureshi ◽  
Shabana Gulzar ◽  
Abdul Rashid Dar ◽  
Reyaz Ur Rehman ◽  
Inayatullah Tahir
Keyword(s):  
Plant Height ◽  
Treatment Effect ◽  
Mass Number ◽  
Tween 80 ◽  
Dry Mass ◽  
Chrysanthemum Morifolium ◽  
Growth Retardants ◽  
Soil Culture ◽  
Rooted Cuttings ◽  
Whole Plants

An experiment was conducted to study the effect of graded concentrations of foliar applied growth retardants (cycocel and B-nine) on the growth and flowering of Chrysanthemum morifolium cv. Flirt. Uniform rooted cuttings raised in pot soil culture received spray applications of growth retardants viz., cycocel and B-nine prepared in 0.1% Tween 80. Cycocel was applied at 1000, 2500 and 5000 mgL-1, whereas B-nine was applied at 100, 250 and 500 mgL-1 concentrations. Plants were sprayed at 2 and 6 weeks after transplantation. Visual observations, plant height, fresh mass, dry mass, number of laterals, number of inflorescences and inflorescence diameter were recorded at periodic intervals. Cycocel treated plants recorded a significant increase in fresh and dry mass of whole plants, leaves and roots, whereas B-nine treated plants were comparable with the controls. Cycocel and B-nine treated plants showed early emergence of buds and inflorescences, whereas no significant effect was recorded on number of laterals. Cycocel application resulted in the increase in inflorescence number. The present results suggest that the treatment effect may be cultivar dependant as many other cultivars of chrysanthemums have been chemically tailored with desired effects using cycocel and B-nine.

scholarly journals Hydrothermal treatments for overcoming dormancy in seeds of Mimosa ophthalmocentra Mart. ex Benth. (Fabaceae: Mimosoideae)

2017 ◽  
Vol 4 (7) ◽  
pp. 103-111
Author(s):  
Azenate Campos Gomes ◽  
Alecksandra Vieira de Lacerda ◽  
Riselane Lucena de Alcântara Bruno ◽  
Edna Ursulino Alves ◽  
Carina Seixas Maia Dornelas ◽  
...  
Keyword(s):  
Experimental Design ◽  
Water Temperature ◽  
Analysis Of Variance ◽  
Seed Dormancy ◽  
Environmental Conditions ◽  
Dry Mass ◽  
Semiarid Region ◽  
Tukey Test ◽  
Brazilian Semiarid ◽  
Emergence Percentage

The efficiency in the production of seedlings is decisive for the final result of their applicability. Therefore, strategies to ensure a rapid and uniform emergence are necessary, especially when it is associated with sustainable methods. The aim of this study was to evaluate the influence of different water temperatures as overcoming seed dormancy in Mimosa ophthalmocentra Mart. ex Benth., simply and economically, in the Brazilian Semiarid Region. The experimental design was completely randomized with four replications, each one consisting of 50 seeds, which were subjected to six treatments: intact seeds (T1/control) and seeds immersed in water at 55, 65, 75, 85, and 95 °C (T2, T3, T4, T5, and T6, respectively). Sowing was performed in trays under environmental conditions and evaluations were performed daily for 28 days. The emergence percentage, emergence speed index (ESI), and length and dry mass of seedlings were evaluated. Data were subjected to analysis of variance, and the means were compared by Tukey test (p < 0.05). M. ophthalmocentra has tegumentary dormancy, and its emergence was influenced by water temperature. Immersion of seeds in water at 75 ºC for 1 min provided the best result with 60% of emergence, ESI of 2.68, and seedlings with longer lengths and higher dry mass.

scholarly journals Nitrogen Management in Maize Under Rainfed Conditions in the Brazilian Semiarid Region

2019 ◽  
Vol 11 (7) ◽  
pp. 86
Author(s):  
Micaela B. Pereira ◽  
José L. dos S. Gomes ◽  
Vademir R. Cavalcante ◽  
Bruno de S. Oliveira ◽  
Jackson T. Lobo ◽  
...  
Keyword(s):  
Plant Height ◽  
Zea Mays L ◽  
Dry Mass ◽  
Semiarid Region ◽  
Nitrogen Absorption ◽  
Nitrogen Levels ◽  
Brazilian Semiarid ◽  
Rainfed Conditions ◽  
Crop Cycle ◽  
Number Of Leaves

Zea mays L. presents socioeconomic and cultural importance for the Northeast region of Brazil, its yield is directly related to the productive system, to the edaphoclimatic conditions and to the soil management. The aim of this work was to evaluate the development and the yield of maize under different nitrogen doses in rainfed conditions in the Brazilian semiarid. The experimental design was in randomized blocks, with four treatments and five replications, totalizing 20 experimental plots, with 24 plants each. The treatments were: T1 (0 kg ha-1 of N); T2 (40 kg ha-1 of N); T3 (60 kg ha-1 of N) and T4 (80 kg ha-1 of N). Were evaluated: plant height, culm diameter and number of leaves at 30, 45, 60, 75 and 90 days after emergence; leaf temperature, stomatal conductance, transpiration, liquid photosynthesis and intercellular carbon concentration at 65 days after emergence; yield, shoot dry mass and nitrogen content in the soil after harvest. The different nitrogen doses significantly influenced the plant height, culm diameter and the number of leaves in the different evaluation periods, also influencing the nitrogen levels in the soil after the harvest. There was no difference among treatments for the yield, the registered average was 5,205 kg ha-1. The development of the crop and the nitrogen absorption may have been influenced by the water deficit during the crop cycle. The maize presented better agronomic performance with the dose of 60 kg ha-1 of nitrogen.

scholarly journals Production of lettuce changes (lactuca sativa) submitted to different doses of Silicon

2020 ◽  
Vol 13 (1) ◽  
pp. 1
Author(s):  
T. O. D. Gonzaga ◽  
C. Araujo ◽  
A. L. Andrade ◽  
J. M. Dos Santos ◽  
G. B. Silva ◽  
...  
Keyword(s):  
Experimental Design ◽  
Analysis Of Variance ◽  
Lactuca Sativa ◽  
Dry Mass ◽  
Viable Alternative ◽  
Seedling Production ◽  
Tukey Test ◽  
Number Of Leaves ◽  
Shoot Mass ◽  
Different Doses

The objective of this work was to evaluate the effect of different doses of silicon on the production of lettuce seedlings. The treatments were arranged in a 4x2 factorial scheme, totaling 8 treatments. The first factor corresponded to 4 Si doses (Ca silicate) added to the substrate for seedling production (0; 13.3; 32.3 and 53.2 g.kg-1 of Si on the substrate). The second factor corresponded to two varieties of lettuce, being Mônica SF31 (Crespa) and Rafaela (Americana). The experimental design was the completely randomized, with 4 replicates. The number of leaves (NF), fresh aerial mass (MFPA), dry shoot mass (MSPA), fresh radicular mass (MFRA) and root dry mass (MSRA) were evaluated. Data were submitted to analysis of variance by the F test, and the means of the treatments compared by the Tukey test at 5% probability. The seedlings of the Mônica SF31 and Rafaela lettuce varieties do not present differences regarding the Si requirement for the production of MFPA, MSPA, MFRA and MSRA. The application of Si to the substrate can be a viable alternative for the production of lettuce seedlings with higher NF, MFPA, MSPA, MFRA and MSRA. Doses of 32.0 to 43.7 g.kg-1 of Si in the substrate are suitable for higher production of MFPA, MSPA, MFRA and MSRA of lettuce Mônica SF31. Doses of 31.5 to 39.8 g.kg-1 of Si in the substrate are suitable for higher production of MFPA, MSPA, MFRA and MSRA of Rafaela lettuce seedlings.

scholarly journals Diversity Assessment of Some Sesame (Sesamum indicum L.) Genotypes Cultivated in Northern Ghana Using Morphological and Simple Sequence Repeat (SSR) Markers

2019 ◽  
Vol 2019 ◽  
pp. 1-10 ◽  
Author(s):  
Raphael Adu-Gyamfi ◽  
Ruth Prempeh ◽  
Issahaku Zakaria
Keyword(s):  
Genetic Diversity ◽  
Plant Height ◽  
Ssr Markers ◽  
Analysis Of Variance ◽  
Morphological Data ◽  
Northern Ghana ◽  
Land Races ◽  
Diversity Assessment ◽  
Parental Lines ◽  
Number Of Seeds

In Ghana, sesame is cultivated in some districts of northern Ghana. Genotypes cultivated are land races that are low yielding leading to decline in production. There is the need for improvement of these land races to generate high yielding cultivars. Characterization of genetic diversity of the sesame land races will be of great value in assisting in parental lines selection for sesame breeding programmes in Ghana. Twenty-five sesame land races were collected from five districts in northern Ghana noted for sesame cultivation. Seeds collected were planted in three replicates in randomized complete block design and were evaluated for a number of morphological characters. Data collected were subjected to Principal Component Analysis (PCA) and a dendrogram showing similarity between the accessions were drawn. Data on number of capsules per plant, number of seeds per capsule, and plant height at flowering were subjected to analysis of variance using GenStat Discovery Edition 4. Molecular genetic diversity was assessed by using thirty eight SSR markers widely distributed across sesame genome to characterize the materials. Twenty-one out of the 38 primers were polymorphic. Cluster analyses using the Euclidean similarity test and a complete link clustering method were used to make a dendrogram out of the morphological data. Analysis of variance showed that capsule number was significantly different; a range of 54.9 and 146.7 was produced. The number of seeds per capsule varied significantly and the variation between highest and lowest accession in seed production was 33%. Plant height was also significantly different ranging from 60.6 to 94.1 cm. Using morphological traits the accessions clustered into two major groups and two minor groups and variation among accessions were 10-61%. On the other hand, SSR marker-based dendrogram revealed five major and two minor groups. It showed that variation among the accessions was low, 10-20%. Heterozygosity was 0.52, total alleles produced were 410, and average allele per locus was 19.52. Six accessions, C3, C4, S5, W1, W3, and W5 fell in five different clusters in the SSR dendrogram and in six clusters in the morphomolecular based dendrogram. These accessions were noted for high capsule number per plant and seeds number per capsule and are recommended for consideration as potential parental lines for breeding programme for high yield.

scholarly journals Characteristics of anteroposterior curvatures of the spine in soccer and futsal players

2017 ◽  
Vol 18 (4) ◽  
Author(s):  
Krystyna Chromik ◽  
Anna Burdukiewicz ◽  
Jadwiga Pietraszewska ◽  
Aleksandra Stachoń ◽  
Paweł Wolański ◽  
...  
Keyword(s):  
College Students ◽  
Statistical Analysis ◽  
Injury Prevention ◽  
Analysis Of Variance ◽  
Statistical Significance ◽  
Body Posture ◽  
Soccer Players ◽  
Prevention Training ◽  
The Difference ◽  
Post Hoc

AbstractPurpose. The aim of the study was to determine differences in anteroposterior spine curvatures between futsal players, soccer players, and non-training students. The results may contribute to the development of present-day knowledge of posturometry, and its implementation in training can help reduce the risk of body posture disorders in athletes. Methods. The examined group consisted of 48 athletes and 38 non-training college students. Body posture parameters were measured with the use of Posturometr-S. The normality of distribution was checked with the Shapiro-Wilk test, and the differences between the groups were measured with ANOVA and the Bonferroni post-hoc test. The level of statistical significance was set at p < 0.05. Results. The analysis of angle values revealed the widest and most similar measurements in the group of futsal players and soccer players. The analysis of variance proved statistically significant differences between the soccer players and futsal players (p = 0.003). The difference between the soccer players and non-training students was statistically significant. The highest γ angular value was measured in non-training students, followed by futsal players and soccer players. The statistical analysis revealed significant differences between the non-training students and futsal players, as well as non-training students and soccer players (p < 0.001). Conclusions. A complex assessment of athletes’ body posture is crucial in injury prevention. Training overloads may often lead to disorders of the organ of locomotion and affect the correct body posture in athletes. This, in turn, may result in pains and injuries.

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