Efeito de sementes verdes na qualidade fisiológica de sementes de soja

Costa, N. de L.; Neto, J. B. França; Pereira, Jonny Everson Scherwinski; Mesquita, C. M.; Krzyzanowski, F. C.; Henning, A. A.

doi:10.17801/0101-3122/rbs.v23n2p102-107

Cited by 17 publications

(23 citation statements)

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“…With the results obtained in this research, it was possible to conclude that green seeds have a negative effect on soybean quality as also reported by Costa et al (2001), Bohner (2003), Medina et al (1997), Pupim et al (2005), Padua et al (2007) and Zorato et al (2007). It was also concluded that green seeds present high chlorophyll fluorescence and it is possible to improve soybean seed quality by removing these seeds using chlorophyll fluorescence sorting, as Jalink et al (1998) did with Brassica oleracea seeds.…”

Section: Effects Of Controlled Deterioration On Seeds Sorted By Chlorsupporting

confidence: 84%

“…In lots with 100% of green seeds drastic reductions are reported in seed vigor compared to lots without the occurrence of green seeds, while in lots with 5% to 10% of green seeds the physiological quality of the seeds was little affected (Bohner, 2003). In the same way, in soybean seeds of the Conquista, BRS 138, CD 201 and EMGOPA 302 cultivars, with proportions of 0%, 10%, 20%, 30%, and 100% of green seeds, it was verified that lots of all varieties with more than 10% of green seeds were inferior in physiological quality (Costa et al, 2001). Similar results were reported by Medina et al (1997) and Pupim et al (2005).…”

Section: Introductionsupporting

confidence: 85%

“…This test was performed according to procedures proposed by Krzyzanowski et al (2001). Seed moisture content was conditioned to 24.4% and seeds were placed in sealed aluminum bags and artificially aged for 48 hours at 42 ºC in an oven.…”

Section: Controlled Deterioration Testmentioning

confidence: 99%

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Use of chlrophyll fluorescence sorting to improve soybean seed quality

Cícero

Schoor²,

Jalink³

2009

Rev. bras. sementes

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-The occurrence of green seeded soybeans [Glycine max (L.) Merrill] is a problem closely related to unfavorable climatic conditions, mainly drought, that occurs during the final stages of seed maturation. This problem causes serious losses to soybean seed quality in Brazil. In these seeds, chlorophyll is not properly degraded during maturation, drastically reducing seed quality. Using the chlorophyll fluorescence technique, it is possible to remove green seeds from the seed lot, improving seed quality in several species in which the occurrence of green seeds is also a problem. The objective of this research was to study the use of the chlorophyll fluorescence technique in sorting green seeds from soybean seed samples and its effects on quality. Five seed samples of soybean, cultivar TMG 113 RR, with 0%, 5%, 10%, 15%, and 20% of green seeds were used in this study. Seeds from each sample were sorted into two fractions based on the chlorophyll fluorescence signals and then compared to the control (non-sorted seeds). The sorting process showed great differences between the low and high chlorophyll fluorescence fractions. It was concluded that: green seeds of soybeans present high chlorophyll fluorescence and that this characteristic affects the quality of the seeds; it is possible to improve the quality of soybean seed by removing green seeds using the chlorophyll fluorescence sorting technique.

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Section: Effects Of Controlled Deterioration On Seeds Sorted By Chlorsupporting

confidence: 84%

Section: Introductionsupporting

confidence: 85%

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Use of chlrophyll fluorescence sorting to improve soybean seed quality

Cícero

Schoor²,

Jalink³

2009

Rev. bras. sementes

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“…A qualidade da semente pode ser influenciada por diversos fatores que ocorrem antes e durante a colheita, a secagem, o beneficiamento, o armazenamento e o transporte (FRANÇA-NETO et al, 2000). Condições de estresse por altas temperaturas e seca podem ocasionar a formação de sementes de soja pequenas, enrugadas, descoloridas e imaturas, de coloração esverdeada.…”

Section: Introductionunclassified

“…Também o manejo inadequado de lavoura de soja pode causar maturação desuniforme, resultando em uma colheita de sementes imaturas e esverdeadas, mescladas com sementes amarelas e maduras (COSTA et al, 2001;ZORATO et al, 2007b). Rangel et al (2007) (2005( apud RANGEL et al, 2007, trabalhando em condições controladas, associaram os efeitos de temperaturas superiores a 28ºC no estádio R 6 à ocorrência de sementes esverdeadas.…”

Section: Introductionunclassified

Presença e qualidade de sementes esverdeadas de soja na região sul do Estado do Mato Grosso do Sul

Rangel

Minuzzi²,

Pierezan

et al. 2011

Acta Sci. Agron.

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RESUMO. Sementes de soja produzidas em algumas regiões do Estado de Mato Grosso do ABSTRACT. Levels of green soybean seeds and their quality in southern MatoGrosso do Sul State. Soybean seeds have shown serious quality problems, due to high levels of greening seeds in lots produced in Mato Grosso do Sul State. With the aim of investigating the problem, an experiment was conducted in which an evaluation was performed regarding germination potential, root length, oil content and oleic acid acidity percentage, of soybean seed from genotypes BRS 133, BRS 181, BRS 239, BRS 206, Embrapa 48, BRS 240, BRS 241 and CD 202 grown under six environments in the state (Dourados -CPAO, Dourados -Barreirão, Ponta Porã, Maracaju, Sidrolândia and Naviraí). The field experimental design was randomized blocks with three replications, in each site. The genotypes from Ponta Porã and Barreirão, whose seed lots contained lower green seeds percentages, showed the highest germination levels and root length as well. The oil content and acidity were not significantly influenced by green seed levels. It was concluded that, as the level of green seeds increases, a great decrease on germination potential and primary root length was observed.

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