scholarly journals Harvesting methods on physical and physiological quality of Panicum maximum seeds

2019 ◽  
Vol 23 (4) ◽  
pp. 309-313
Author(s):  
Carla G. Machado ◽  
Simério C. S. Cruz ◽  
Givanildo Z. Silva ◽  
Luciana C. Carneiro ◽  
Ingrid M. H. de L. Silva
Keyword(s):  
Experimental Design ◽  
Analysis Of Variance ◽  
Seed Weight ◽  
Panicum Maximum ◽  
Probability Level ◽  
Tukey Test ◽  
Forage Species ◽  
Physiological Quality ◽  
Tetrazolium Test

ABSTRACT The quality of seeds of forage species can be influenced by the different harvesting methods used. The aim of this study was to evaluate the physical and physiological quality of seeds of Panicum maximum, cultivars ‘Massai’ and ‘Mombaça’, obtained by the methods of ground sweeping and direct heading (cutting of the panicles) of different farmers in the year 2014. The test consisted of three lots of each cultivar from seed farmers in the state of Goiás, Brazil. The experimental design was completely randomized, in 3 x 2 factorial scheme (farmer x harvesting methods) with four replicates. The following variables were analyzed: physical purity, 1000-seed weight; germination and first count of germination. At the end of the germination the percentage of dormancy and dead seeds were evaluated by the tetrazolium test of the remaining seeds, in addition to the abnormal seedlings. The data were submitted to analysis of variance and the means of the treatments were compared by Tukey test at 0.05 probability level. Seeds of P. maximum ‘Massai’ and ‘Mombaça’ collected by ground sweeping have superior physiological quality despite the low level of purity of the lots, compared to direct heading method.

scholarly journals ANÁLISE FÍSICO-QUÍMICA E CONTAGEM DE COLIFORMES TOTAIS E TERMOTOLERANTES DE ALMÔNDEGAS ELABORADAS COM CARNE DE CAPIVARA E DIFERENTES CONCENTRAÇÕES DE BACON

2017 ◽  
Vol 13 (Especial 2) ◽  
pp. 35-40
Author(s):  
Gabriella Castro Cunha ◽  
Brena Cristine Rosário Silva ◽  
Diego da Silva Pedro ◽  
Vilson Matias Pinto ◽  
Márcio Ramatiz Lima dos Santos ◽  
...  
Keyword(s):  
Experimental Design ◽  
Analysis Of Variance ◽  
Titratable Acidity ◽  
The Other ◽  
Tukey Test ◽  
Physical Chemical ◽  
Level Of Significance

The objective of this study was to evaluate the quality of meatballs prepared with capybara meat and different concentrations of pork bacon. Three formulations of capybara meatballs were prepared: one with 100% of capybara meat and the other with 10 and 20% of pork bacon added. Coliforms were carried out at 35 and 45ºC of the meatball samples, in addition to pH, titratable acidity, moisture and ash determinations. In relation to the physical-chemical determinations, the results were submitted to analysis of variance and the differences of the means compared by Tukey test at the 5% level of significance. The results of the microbiological analyzes were evaluated in a descriptive way. The experimental design was completely randomized. All physicalchemical and microbiological determinations were performed in triplicate. Coliform analyzes showed that the meatballs were fit for consumption and the physicochemical results are in acceptable levels.

scholarly journals Physiological behavior of bean's seeds and grains during storage

2016 ◽  
Vol 88 (2) ◽  
pp. 1069-1077
Author(s):  
FLÁVIA D.R. CASSOL ◽  
ANDRÉA M.T. FORTES ◽  
LORENA C. MENDONÇA ◽  
CAMILA V. BUTURI ◽  
THAÍS R. MARCON
Keyword(s):  
Experimental Design ◽  
Seed Germination ◽  
Average Length ◽  
Accelerated Aging ◽  
Storage Period ◽  
Tukey Test ◽  
Energy Needs ◽  
Germination Speed ◽  
Physiological Quality

Beans are one of the most used foods to meet the energy needs of the Brazilian diet, requiring farmers to use high seed physiological potential. The aim was to evaluate the physiological quality of beans stored for 360 days. Analyses were performed at 0, 30, 90, 180, 270, and 360 days after receiving the seeds (S1 and S2) and grains (G1 and G2) of BRS Splendor. Tests of germination, accelerated aging, cold, speed of germination, average length of shoots, and root were performed. The experimental design was completely randomized split-plot in time and the means were compared through Tukey test at 5% probability. Seed germination was not affected in S2, while the drop in S1 and G1 was significant. The vigor of grains from field 1 declined from 91 to 50% and from 93% to 76% by accelerated aging and cold, respectively, after 360 days. The germination speed tests performed showed a decreased during the experiment. The grains from field 1 had lower physiological quality. The accelerated aging and cold tests, through the speed of germination parameter, showed decrease in the vigor of the Splendor BRS. The storage period influenced the physiological quality of the beans tested.

scholarly journals Physiological quality of dual-purpose wheat seeds from plants subjected to artificial defoliation

2017 ◽  
Vol 47 (1) ◽  
Author(s):  
Giselle Regina Rodolfo ◽  
Clovis Arruda Souza ◽  
Cileide Maria Medeiros Coelho ◽  
Karla Katy Belizario
Keyword(s):  
Analysis Of Variance ◽  
Dual Purpose ◽  
Statistical Probability ◽  
Tukey Test ◽  
Randomized Design ◽  
Physiological Quality ◽  
Source Sink ◽  
Wheat Seeds

ABSTRACT: Defoliation may play a role in source-sink relationships and reduce the physiological quality of seeds. The main goal of this research was to investigate the effect of successive defoliations on physiological quality of wheat seeds in 'BRS Umbu' and 'BRS Tarumã' cultivars. Two experiments were carried out using a complete randomized design with four replications. Treatments included plants without defoliation (0), and those where 1, 2, and 3 consecutives defoliations were applied. Seeds from each treatment originated from four different lots. Data were analyzed with one-way analysis of variance and means compared by Tukey test at 5% statistical probability. Germination was not affected by defoliation, or the number of cuts, but an effect on vigor was reported.

scholarly journals Green soybean seeds: effect on physiological quality

2020 ◽  
Vol 50 (2) ◽  
Author(s):  
Sheila Bigolin Teixeira ◽  
Joseano Graciliano da Silva ◽  
Michele Renata Revers Meneguzzo ◽  
Andrea Bicca Noguez Martins ◽  
Geri Eduardo Meneghello ◽  
...  
Keyword(s):  
Accelerated Aging ◽  
Dry Mass ◽  
Soybean Seeds ◽  
Probability Level ◽  
Growth Data ◽  
Tukey Test ◽  
Normality Test ◽  
Statistical Program ◽  
Physiological Quality

ABSTRACT: The objective of this research was to assess the manner in which the presence of green soybean seeds affects their physiological quality. In this study, six lots of soybean seeds of cultivar 5958RSF IPRO with 0, 0, 7, 8, 16 and 18% of green seeds were examined. The tests done included the first germination count, germination, electrical conductivity, field emergence, accelerated aging, emergence speed index, Tetrazolium, length, dry mass and seedling growth curve. Results were tested employing the normality test and analysis of variance, and the means were compared by the Tukey test at 5% probability level, employing the Rbio statistical program. Growth data were analyzed by the nonlinear regression analytical method, using the SigmaPlot 12.0 software. The viability and vigor of the greenish seeds were confirmed to reveal higher deterioration, proportional to the percentage of seeds in which the cotyledons had green pigmentation, indicating that the presence of chlorophyll caused the physiological quality of the soybean seeds to decrease.

scholarly journals QUALIDADE MICROBIOLÓGICA E FÍSICO-QUÍMICA DE ALMÔNDEGAS ELABORADAS COM CARNE DE CAPIVARA E DIFERENTES CONCENTRAÇÕES DE BACON

2017 ◽  
Vol 13 (Especial 2) ◽  
pp. 426-431
Author(s):  
Gabriella Castro Cunha ◽  
Vilson Matias Pinto ◽  
Brena Cristine Rosário Silva ◽  
Diego da Silva Pedro ◽  
Márcio Ramatiz Lima dos Santos ◽  
...  
Keyword(s):  
Experimental Design ◽  
Analysis Of Variance ◽  
Titratable Acidity ◽  
The Other ◽  
Tukey Test ◽  
Physical Chemical ◽  
Level Of Significance

The objective of this study was to evaluate the quality of meatballs prepared with capybara meat and different concentrations of pork bacon. Three formulations of capybara meatballs were prepared: one with 100% of capybara meat and the other with 10 and 20% of pork bacon added. Coliforms were carried out at 35 and 45ºC of the meatball samples, in addition to pH, titratable acidity, moisture and ash determinations. In relation to the physical-chemical determinations, the results were submitted to analysis of variance and the differences of the means compared by Tukey test at the 5% level of significance. The results of the microbiological analyzes were evaluated in a descriptive way. The experimental design was completely randomized. All physicalchemical and microbiological determinations were performed in triplicate. Coliform analyzes showed that the meatballs were fit for consumption and the physicochemical results are in acceptable levels.

scholarly journals PRODUCTION AND PHYSIOLOGICAL QUALITY OF SOYBEAN SEEDS IN ORTHIC QUARTZARENIC NEOSOIL OF THE CERRADO REGION

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
Keyword(s):  
Electrical Conductivity ◽  
Aerial Part ◽  
Water Distribution ◽  
Accelerated Aging ◽  
Dry Mass ◽  
Soybean Seeds ◽  
Scheme Design ◽  
Physiological Quality ◽  
Tetrazolium Test

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.

scholarly journals pH of exudate test in the physiological quality of crambe seeds

2016 ◽  
Vol 46 (6) ◽  
pp. 1014-1018 ◽  
Author(s):  
Charline Zaratin Alves ◽  
Lennis Afraire Rodrigues ◽  
Carlos Henrique Queiroz Rego ◽  
Josué Bispo da Silva
Keyword(s):  
Pearson Correlation ◽  
Raw Material ◽  
Mean Values ◽  
Tukey Test ◽  
Physiological Quality ◽  
The Subject ◽  
The Mean ◽  
C 30

ABSTRACT: Crambe is a rapeseed with high oil content and can be used as a winter cover or as a source of raw material for the production of biodiesel, however espite the growing interest in the culture, research on the subject is still incipient, especially concerning the seed production and analysis technology. The purpose of this study is to evaluate the physiological quality of crambe seeds, 'FMS Brilhante' cultivar, by testing the pH of exudate. Five seed lots were submitted to the determination of water content and the tests of germination and vigor (first count, emergence and tetrazolium). In the conduction of pH exudate test, temperatures (25 and 30oC), and periods of seed imbibition in water (15, 30 and 45 minutes) were tested. The experiment was conducted in a completely randomized manner, with four replicates, and the mean values were compared by the Tukey test at 5% probability; Pearson correlation between the pH of the exudate and initial tests was also made. Testing the pH of exudate is promising for separating lots of crambe seeds and the following combinations of 25°C/30 minutes or 30°C/45 minutes can be used.

Patents for the Physiological Quality in Seeds of Peach Rootstock Classified by Weight and Stored for Different Periods

2019 ◽  
Vol 10 (2) ◽  
pp. 124-130 ◽  
Author(s):  
Aline G. Souza ◽  
Oscar J. Smiderle ◽  
Renata D. Menegatti ◽  
Marcos Aurélio C. de Lima ◽  
Tainá R. das Neves ◽  
...  
Keyword(s):  
Electrical Conductivity ◽  
Experimental Design ◽  
Growth Analysis ◽  
Prunus Persica ◽  
Stone Fruit ◽  
Germination Test ◽  
Experimental Conditions ◽  
Physiological Quality

Background: Among stone fruit, the peach (Prunus persica (L) Batsch) is one of the most widely grown species in Brazil, in both area cultivated and in production. Objective: The aim of this study was to evaluate the physiological quality of heavy and light seeds of four cultivars of Prunus persica for two storage periods, from tests of electrical conductivity, germination, and an analysis of initial plantlets growth. Methods: The Electrical Conductivity test (EC) was conducted in a Completely Randomised Design (CRD), in a 4 x 2 x 5 factorial scheme with five replications. The germination test was carried out in CRD, in a 4 x 2 factorial scheme with eight replications. The physiological quality of the seeds was determined at zero and twelve month’s storage. For the growth analysis, the experimental design was in CRD, in a 4 x 2 factorial scheme with four replications. Results: Under the conditions of the present study, it was found that the tests of germination and electrical conductivity were complementary in evaluating physiological quality in seeds of Prunus persica rootstock, suggesting that independent of the weight of the seeds, in ‘Capdeboscq’, ‘Aldrighi’, ‘Okinawa’ and ‘Okinawa Roxo’, there is a loss of quality and viability when the seeds are stored for a period of 12 months. Conclusion: Under the experimental conditions of the present study, it was concluded that storage for a period of 12 months in Recent patents is not rather recommendable for maintaining quality and viability in seeds of Prunus persica of the Capdeboscq, Aldrighi, Okinawa and Okinawa Roxo cultivars.

scholarly journals Viability of Carica papaya L. Seeds by the Tetrazolium Test

2018 ◽  
Vol 10 (2) ◽  
pp. 335 ◽  
Author(s):  
Sara M. C. Carvalho ◽  
Salvador B. Torres ◽  
Erivanessa C. Sousa ◽  
Danielle M. M. Sousa ◽  
Kleane T. O. Pereira ◽  
...  
Keyword(s):  
Decision Making ◽  
Carica Papaya ◽  
Seed Viability ◽  
Germination Test ◽  
Long Period ◽  
Physiological Quality ◽  
Rapid Tests ◽  
Papaya Seeds ◽  
Tetrazolium Test

Germination test for papaya seeds demands thirty days to obtain the results, which is a long period for decision-making. Thus, rapid tests become essential tools to evaluate seed viability, and the tetrazolium test is an alternative for this purpose. Hence, this study aimed to establish the adequate procedure to apply this test, in order to reduce the time of evaluation of papaya seeds. For that, four tetrazolium solution concentrations (0.05, 0.1, 0.5 and 1%) and three staining times (3, 6 and 9 hours) were tested at temperatures of 35 and 40 ºC. The experimental design was completely randomized in 4 × 3 + 1 factorial scheme (concentrations × staining times + one control = germination test). It was found that the tetrazolium test allows to evaluate the physiological quality of papaya seeds, thus reducing the time for decision-making. For the test, we recommend using the concentrations of 0.1% for 9 hours or 1% for 6 hours of staining, at temperature of 40 ºC.

scholarly journals Different harvest times and physiological quality of coriander seeds

2016 ◽  
Vol 20 (2) ◽  
pp. 133-137
Author(s):  
Emilly R. Alkimim ◽  
Andréia M. S. de S. David ◽  
Tiago V. Sousa ◽  
Cleiton G. Rodrigues ◽  
Hugo T. R. Amaro
Keyword(s):  
Experimental Design ◽  
Moisture Content ◽  
Seed Quality ◽  
Seedling Emergence ◽  
Full Bloom ◽  
Factors Influencing ◽  
Emergence Rate ◽  
Physiological Quality ◽  
First Moment

ABSTRACT The season of harvest is one of the most important factors influencing seed quality. This study evaluated the effect of different harvesting times on the physiological quality of Coriandrum sativum L. seeds, cv. Palmeira. The experimental design was completely randomized, with six treatments (harvest times) and four replications. The experiment was conducted during the months of April to October 2010. The first moment to harvest seeds was carried out 15 days after full bloom, when approximately 50% of plants were in flowering phase. Other harvests (22, 29, 36, 43 and, 50 days after bloom) were carried out at 7 days intervals until the seeds reached 16.0% of moisture, which occurred in the 6th harvest. Immediately after each harvest, the seeds were analysed for water content, germination and vigor (first count, seedling emergence and emergence rate index). The harvest season most suitable for C. sativum seeds cv. Palmeira occurred between 46 and 50 days after flowering, when the seeds have the highest physiological quality and moisture content between 20 and 16%.

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