Envelhecimento Acelerado Tradicional E Alternativo Em Sementes De Melancia

Duarte, Rafaelle Ribeiro; Borges, Renato Silva; Costa, Geany Giovana Silva da; Silva, Eliamara Marques da; Santos, Jessica Morgana dos

doi:10.32404/rean.v4i5.2207

Cited by 3 publications

(2 citation statements)

References 7 publications

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“…During these periods, there was high water absorption and fungi, which probably contributed to the decline in physiological seed quality. The occurrence of fungi after accelerated aging was also reported by Moraes et al (2016), in T. fuchsiaefolia seeds, and Duarte et al (2017), in watermelon seeds, whose (A) (B) S11 = 10,7491 -0,1337x + 0,0003x 2 R 2 = 0,94 S12 = 9,1224 + 0,0981x -0,0037x 2 + 0,00001x 3 R 2 = 0,95 S13 = 9,59005/(1 + e 0,06338(x -66,54604) ) R 2 = 0,93 S14 = 10,67374/(1 + e 0,09482(x -45,55315) ) R 2 = 0,99 S15 = 10,91508/1 + e 0,065779(x -47,22536) ) R 2 = 0,92 S11 = 8,6228 + 0,0893x -0,0037x 2 + 0,00002x 3 R 2 = 0,95 S12 = 10,0672 + 0,0794x -0,0037x 2 + 0,00002x 3 R 2 = 0,98 S13 = 9,6857 -0,0705x R 2 = 0,91 S14 = 9,7119 + 0,0783x -0,0033x 2 + 0,00001x 3 R 2 = 0,96 S15 = 9,8686 + 0,0645x -0,0033x 2 + 0,00001x 3 R 2 = 0,98 reduced viability was attributed to contamination by pathogenic microorganisms, as a consequence of AA, causing decreased seed vigor.…”

Section: Resultssupporting

confidence: 64%

Piptadenia moniliformis Benth. seeds subjected to accelerated aging

Azerêdo

Paula

2021

J. Env. Anal. Progr.

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The accelerated aging test is efficient for evaluating the seed vigor of many species, but there are few studies on forest tree species. The aim of this study was to determine the adequate exposure time of Piptadenia moniliformis Benth. seeds to the accelerated aging test in order to evaluate the vigor of seeds classified by color and size. Ten sub-lots were obtained by separating the seeds into two tegument colors (light and dark) and five size classes (11, 12, 13, 14, and 15), using round wire sieves. Before the accelerated aging (AA) test, the seeds were treated with concentrated sulfuric acid for 20 minutes to overcome dormancy. Next, the sub-lot seeds underwent different aging times (0, 24, 48, 72, 96 and 120 hours) at 45 ºC. The AA test, conducted at 45 ºC for 72 hours, is adequate to evaluate the quality of P. moniliformis seeds, in terms of color and size.

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Section: Resultssupporting

confidence: 64%

Piptadenia moniliformis Benth. seeds subjected to accelerated aging

Azerêdo

Paula

2021

J. Env. Anal. Progr.

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“…Small seeds such as vegetables seeds absorb water in uneven and fast manner at the end of the accelerated aging period, due to the high humid atmosphere, resulting in an accentuated variation in the degree of seed humidity and promoting inconsistent test results, due to the different degrees of seed deterioration (Radke et al 2016;Duarte et al 2017). In addition, the performance of seeds may be influenced by the presence of saprophytic fungi and its high incidence may limit the estimative of seed vigor, once they influence the deterioration interfering in the interpretation of data (Monteiro et al 2017).…”

Section: Improving the Methods For Determining The Physiological And Sanitary Potential Of Gherkin Seedsmentioning

confidence: 99%

Improving the method for determining the physiological and sanitary potential of Gherkin seeds

et al. 2021

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Gherkin seeds usually show irregular physiological quality. Seed production requires fast and reliable tests to evaluate seed quality. Germination test is considered a recognized analysis method; however, seed technology has pursuit the improvement of vigor tests aiming the evaluation of seed’s physiological potential. Thus, the objective of this work was to evaluate procedures to perform the test of accelerated aging and determine the physiological and sanitary potential of gherkin seeds. Four seed lots of cultivar Liso Calcuta were used in the study. To evaluate the initial physiological quality the water content was determined and germination and emergence tests, as well as indices of germination speed and emergence speed were used. The accelerated aging test was performed as traditionally and with saturated saline solution, with 48, 72 and 96 hours, at temperatures of 41oC and 45oC. After aging, the water content was determined, and seeds’ germination and sanity tests were performed. The experiment was set under a completely random design in factorial 4x3x2 (lots x aging periods x temperatures). The standard accelerated aging test and the test with saturated saline solution at 41oC for 96 hours were efficient to evaluate the vigor of gherkin seeds. Saturated saline solution provides uniform water absorption and deterioration in gherkin seeds, allowing to discriminate seed lots in different vigor levels. The salinity test after accelerated aging with saline solution reduces the incidence of some fungi.

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Controlled deterioration test to evaluate the physiological potential of sweet corn seeds

Marinho

Bazzo

Zucareli

et al. 2021

Semina: Ciênc. Agrár.

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The evaluation of the physiological potential of sweet corn seeds is essential in a quality control program and the choice of vigor tests using an adequate analysis methodology is essential to obtain reliable results. In this sense, this study aimed to standardize the methodology of the controlled deterioration test through combinations between time and temperature to evaluate the vigor of sweet corn seeds. Six lots of sweet corn seeds were characterized by the degree of moisture and the initial physiological potential through the following tests: germination, first germination count, cold test, electrical conductivity, accelerated aging, length and dry mass of normal seedlings, seedling emergence in sand, and emergence rate index. Subsequently, these lots had their initial water content adjusted to 20% using the wet substrate method. The seeds from the six lots were subjected to the controlled deterioration test under two temperatures for four periods, obtaining a completely randomized design in an 8 × 6 factorial scheme with eight combinations of time/temperature and six lots. Germination and the first germination count were evaluated after the deterioration test. The data were subjected to analysis of variance with a comparison of means by the Tukey test at a 5% significance. The results of the first count and germination tests after deterioration were subjected to a simple linear correlation study together with the initial characterization data. The combinations 8 h – 40 °C and 8 h – 45 °C in the controlled deterioration test were efficient in distinguishing the vigor of seed lots. The shorter exposure period and the first germination count after deterioration are more suitable for evaluating the vigor of sweet corn seeds.

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Envelhecimento Acelerado Tradicional E Alternativo Em Sementes De Melancia

Cited by 3 publications

References 7 publications

Piptadenia moniliformis Benth. seeds subjected to accelerated aging

Piptadenia moniliformis Benth. seeds subjected to accelerated aging

Improving the method for determining the physiological and sanitary potential of Gherkin seeds

Controlled deterioration test to evaluate the physiological potential of sweet corn seeds

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