scholarly journals Characterization of the physiological quality of soybean seeds produced in Santa Catarina State

2020 ◽  
Vol 41 (1) ◽  
pp. 49
Author(s):  
Vanderléia Mathias ◽  
Cileide Maria Medeiros Coelho ◽  
Cristhyane Garcia Araldi ◽  
Daniele Nerling ◽  
Paulo Tarcísio Domatos de Borba ◽  
...  

The soybean seeds produced in Santa Catarina have the potential for the application of new marketing strategies because they have superior quality over the minimum standards established by the Brazilian legislation. This potential was verified using time series analysis (TS). The main goal of this study was to characterize the physiological quality of soybean seeds produced in the State of Santa Catarina using data from the last five harvests in order to establish new commercialization strategies based on seed quality. Historical data for germination and vigor were obtained from the 2012/2013 to 2016/2017 harvests, with a total of 4606 lots studied. To validate the historical data, data from the 2016/2017 harvest were included. For this analysis, 100 lots of soybean seeds from the 2016/2017 harvest were collected, and laboratory tests for germination and vigor were performed. The results of the time series analysis showed that, on average, the germination rate ranged from 89 to 93%, with all values being higher than the minimum required for commercialization by the Brazilian legislation. Vigor ranged on average from 82 to 90%. Currently, there is no reference value for vigor in the Brazilian legislation for seed commercialization purposes. Of the total of lots evaluated, 1%, 2%, 21%, and 76% of seeds presented germination < 70%, 70–80%, 80–90%, and > 90%, respectively, whereas 4%, 3%, 7%, 17%, and 69% of the lots presented vigor < 70%, 70–75%, 75–80%, 80–85%, and > 85%, respectively. Considering that 76% of the lots presented germination > 90% and 69% of the lots had vigor > 85%, the lots that presented these percentages were ranked, and 64% were determined to meet high quality standards. Taking into account the 100 sampled lots from the 2016/2017 harvest, 55% presented germination > 90% and 58% had vigor > 85%. In this harvest, 41% of the lots met the standards of at least 90% germination and 85% vigor according to the ranking methodology. This study concludes that due to the stability of climatic conditions, the State of Santa Catarina produces soybean seeds with physiological quality above the minimum standards, which allow the establishment of a minimum vigor standard of 85% for the commercialization of soybean seeds.

2015 ◽  
Vol 37 (3) ◽  
pp. 226-233
Author(s):  
Volmir Frandoloso ◽  
Géri Eduardo Meneghello ◽  
Maria Ângela André ◽  
Cristiane Deuner ◽  
Winicius Menegaz

Abstract:The production of soybeans in the state of Santa Catarina is quite significant in the national context, since the state is recognized for producing seeds with high standards of physiological quality, due to the use of modern technologies and favorable climatic conditions. The aim of this study was to evaluate the physiological quality of soybean seeds produced by major companies in the state of Santa Catarina, analyzed in three seasons: harvesting (reception at UBS), after processing and at the time of sale. The experiment was conducted in the state of Santa Catarina, in the main regions and companies producing commercial soybean seeds: Xanxerê (companies A, B and C), Abelardo Luz (companies D and E), and Campus Novos (companies F and G), in addition to Canoinhas, which was evaluated with a single producer (company H). Data analysis and interpretation of the results showed that the soybean seeds produced in different regions have adequate quality for sowing and germination within the standards required for marketing, except the BRS 295 cultivars and Don Mario 7.0i company "F".


2018 ◽  
Vol 14 (3) ◽  
pp. 144-153
Author(s):  
Jerffeson Araujo Cavalcante ◽  
Ricardo Miotto Ternus

Millet is one of the main grasses used for summer cultivation, however, one of the problemsinvolving pasture formation in Brazil is the variation in the quality of the seeds of commercial forage species, and this has compromised the establishment of pastures. The objective of this study was to evaluate the physical and physiological characteristics of millet seeds commercialized in different regions of the State of Santa Catarina, in the 2014/2015 harvest. Seventeen lots of millet seeds of BRS 1501 from different commercial establishments and regions (Far West, West, Midwest, North and South) ofthe State of Santa Catarina were used. The physical and physiological quality of seed lots was evaluated. The germination of the analyzed lots, independently of the region, was in accordance with the current legal standards. Only the lots from the West region presented values below the legal standard of 95% for physical purity, but not differing from the others. No differences between the lots collected by region were verified for the vigor evaluations. However, it was observed that the lots presented highgermination and low emergence, being characterized a problem in the establishment of pastures in the field.


Author(s):  
Ricardo Miotto Ternus ◽  
Jerffeson Araújo Cavalcante ◽  
Ana Carolina Weiss ◽  
Paula Da Silva Folquini ◽  
Jonas Bloemer ◽  
...  

<p>Na região Sul do Brasil, no período do inverno o azevém (<em>Lolium multiflorum</em> Lam) se torna fundamental para a formação de pastagens. No entanto, o uso e a comercialização de sementes de azevém tetraploide têm crescido em relação aos diploides, devido, principalmente, a qualidade superior de suas sementes. O objetivo do trabalho foi avaliar a qualidade das sementes de azevém tetraploide, comercializadas no Estado de Santa Catarina. Foram utilizados seis lotes de sementes de azevém tetraploide da cultivar Barjumbo, oriundos de diferentes estabelecimentos comerciais do Estado de Santa Catarina. Cada lote de semente foi obtido a partir de coleta oficial. Buscaram-se lotes de sementes da categoria certificada, sendo dois lotes de cada país produtor (Argentina, Brasil e Uruguai). Avaliou-se a qualidade física e fisiológica a partir dos testes de pureza física, massa de mil sementes, teste de germinação, primeira contagem de germinação, comprimento da parte aérea e da raiz e massa seca da área e da raiz. Os resultados demonstram que 100% dos lotes analisados atendem os padrões legais de pureza física e germinação para a comercialização de sementes, independente da origem. Para o teste de germinação os resultados obtidos foram 27% superiores ao padrão legal. Os lotes de sementes de azevém tetraploides nacionais comercializados em Santa Catarina, mesmo apresentando-se dentro dos padrões legais para os testes de pureza física e germinação, apresentaram menor vigor quando comparados aos lotes oriundos da Argentina e Uruguai.</p><p align="center"><strong><em>Quality of </em></strong><em>Lolium multiflorum</em><strong><em> tetraploide seeds marketed in Santa Catarina</em></strong><strong><em></em></strong></p><p><strong>Abstract</strong><strong>: </strong>In the southern region of Brazil, during the winter period ryegrass becomes essential for pasture formation. The use and commercialization of tetraploid ryegrass seeds has grown in relation to diploids, mainly due to the superior quality of their seeds. The objective of this work was to evaluate the quality of tetraploid ryegrass seeds commercialized in the State of Santa Catarina. Six plots of tetraploid ryegrass seeds of the Barjumbo cultivar from different commercial establishments in the State of Santa Catarina were used. Each batch of seed was obtained from official collection. Lots of seeds of the certified category were searched, being two lots from each producing country (Argentina, Brazil and Uruguay). The physical and physiological quality was evaluated from the physical purity tests, mass of one thousand seeds, germination test, first germination count, shoot and root length and dry mass of the area and root. The results show that 100% of the analyzed lots meet the legal standards of physical purity for the commercialization of seeds. For the germination test the results obtained are 27% higher than the legal standard. The plots of tetraploid ryegrass seeds commercialized in Santa Catarina were within the legal standards for the physical purity and germination tests, while the other criteria showed inferior performance when compared to the plots of Argentina and Uruguay.<strong></strong></p>


2015 ◽  
Vol 36 (4) ◽  
pp. 2515
Author(s):  
Volmir Frandoloso ◽  
Geri Eduardo Meneghello ◽  
César Iván Suárez Castellanos ◽  
Maria Angela André Tillmann ◽  
Cristiane Deuner

2017 ◽  
Vol 11 (02) ◽  
pp. 162-168
Author(s):  
Amanda Ribeiro Peres ◽  
◽  
Claudinei Kappes ◽  
José Roberto Portugal ◽  
Marco Eustáquio de Sá ◽  
...  

Author(s):  
Cristiano Ialongo ◽  
Antonella Farina ◽  
Raffaella Labriola ◽  
Antonio Angeloni ◽  
Emanuela Anastasi

We read with great interest the paper by Gaudio and colleagues on vitamin D and on the state of patients with severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) at the time of admission [...]


Author(s):  
Camila Andressa Bissaro ◽  
Rafael Oliveira Defendi ◽  
Lucas Caiubi Pereira ◽  
Alessandro Lucca Braccini ◽  
Diogo Francisco Rossoni ◽  
...  

2018 ◽  
Vol 10 (5) ◽  
pp. 312
Author(s):  
Geliandro Anhaia Rigo ◽  
Luis Osmar Braga Schuch ◽  
Willian Silva Barros ◽  
Rodrigo Lamaison de Vargas ◽  
Vinícius Jardel Szareski ◽  
...  

The aim of this work was to correlate macronutrient content of soybean seeds to physiological quality of different cultivars. The work was developed in the Federal University of Pelotas, in the facilities of the Seed Science and Technology Graduate Program. The experimental design was randomized blocks in arranged in four replicates. The following soybean cultivars were used: BMX Apolo RR (12 lots), BMX Ativa RR (13 lots), BMX Energia RR (26 lots), BMX Força RR (24 lots), BMX Impacto RR (35 lots), BMX Magna RR (16 lots), BMX Turbo RR (44 lots), BMX Potência RR (82 lots) and NA 5909 RR (28 lots), with seeds produced in northwest Rio Grande do Sul. The determination of nutritional contents found in plant tissues of soybean seeds, were measured: Nitrogen (N), Phosphorus (P), Potassium (K), Magnesium (Mg), Calcium (Ca), Sulfur (S). The macronutrient contents of the seeds vary according to genetic characteristics of the cultivars, with higher oscillations of nitrogen, phosphorus, magnesium and sulfur contents present in soybean seeds. Potassium and calcium are defined as the most stable nutrients for the cultivars and seed lots analyzed. High concentrations of nitrogen, phosphorus and calcium are determinants for the physiological quality of soybean seeds.


Revista CERES ◽  
2013 ◽  
Vol 60 (2) ◽  
pp. 286-292
Author(s):  
Cristiane Fortes Gris ◽  
Edila Vilela de Resende Von Pinho ◽  
Maria Laene de Moreira Carvalho ◽  
Rafael Parreira Diniz ◽  
Thaís de Andrade

Differences in levels of lignin in the plant between conventional and transgenic cultivars RR has been reported by several authors, however, there are few studies evaluating the influence of spraying of glyphosate on the lignin in the plant and RR soybean seeds. The aim of this study was to evaluate the physiological quality of RR transgenic soybean seeds and the lignin contents of plants sprayed with the herbicide glyphosate. The assays were conducted both in greenhouse and field in the municipality of Lavras, MG, in the agricultural year 2007/08. The experiment was arranged in a splitplot design with four replicates, considering the treatments hand weeding and herbicide glyphosate as plots, and five RR soybean cultivars (BRS 245 RR, BRS 247 RR, Valiosa RR, Silvânia RR and Baliza RR) as splitplots. In the greenhouse, the cultivars tested were BRS 245 RR and Valiosa RR in a randomized block design with four replicates. The sprayings were carried out at stages V3, V7 and early R5 (3L/ha). The 1000 seed weight, mechanical injury, germination and germination velocity index, emergence velocity index, accelerated aging, electrical conductivity and water soaking seed test, lignin content in the seed coat, in the stem and legumes were determined. The spraying of glyphosate herbicide, in greenhouse and field, did not alter the physiological quality of seeds and the lignin contents in the plant.


2015 ◽  
Vol 28 (4) ◽  
pp. 127-134
Author(s):  
CHARLINE ZARATIN ALVES ◽  
GUSTAVO MARTINS ZAQUEU ◽  
ERIC FABIANO SERAGUZI ◽  
AGUINALDO JOSÉ FREITAS LEAL ◽  
JOSUÉ BISPO DA SILVA

ABSTRACT: The aim of this study was to evaluate the effect of the sowing periods in production, productivity component and physiological quality of seeds of three soybean cultivars (TMG133RR, P98Y70RR and NS7670RR) in Orthic Quartzarenic Neosoil in the cerrado region. The design used was a randomized block a factorial scheme design with four repetitions, and each plot with useful space consisted of three rows of four meters length, spaced at 0.45 meters. Field evaluations were the final stand, the height of the plants, height of the first pod insertion, the mass of 100 seeds and productivity. Already in the lab seeds were evaluated for germination and vigor (first germination count, emergency, emergence speed index, length and dry mass of the aerial part of the plant and roots, electrical conductivity, accelerated aging and tetrazolium test). It concludes that it is possible to use Orthic Quartzarenic Neosoils, located in the Cerrado region at altitudes higher than 600 m, in years and places with good water distribution in the spring-summer seasons, for grain and soybeans production, but as a first goal, the crop should be sown in the first 20 days of November otherwise it should take place in early December.


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