Effect of Temperature, Elevated Carbon Dioxide, and Drought during Seed Development on the Isoflavone Content of Dwarf Soybean [<i>Glycine max</i> (L.) Merrill] Grown in Controlled Environments

Caldwell, Charles R.; Britz, Steven J.; Mirecki, Roman M.

doi:10.1021/jf0355351

Cited by 175 publications

(153 citation statements)

References 27 publications

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“…Generally, in this study, environments which were warmer and drier resulted in less seed isoflavone levels across all genotypes than those environments which were cooler and wetter, consistent with previous studies (Tsukamoto et al 1995;Caldwell et al 2005;Lozovaya et al 2005). Mean isoflavone level ranged from 1600 to 3700 mg g (1 across the 10 environments.…”

Section: Resultssupporting

confidence: 90%

“…This relationship is most likely a function of the relationship between temperature during seed fill and isoflavone accumulation. Cooler temperatures during the seed fill period increase isoflavone content (Caldwell et al 2005;Lozovaya et al 2005;Murphy 2007). The positive relationship between isoflavone content and maturity may be related to the timing of seed filling in later maturing lines, which occurs later in the season when temperatures can be expected to usually be lower in the Canadian soybean production regions.…”

Section: Resultsmentioning

confidence: 99%

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Association of seed and agronomic traits with isoflavone levels in soybean

Murphy¹,

Lee²,

Woodrow³

et al. 2009

Can. J. Plant Sci.

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. 2009. Association of seed and agronomic traits with isoflavone levels in soybean. Can. J. Plant Sci. 89: 477Á484. Soybean, Glycine max (L.) Merr., seeds contain isoflavones, compounds with potential human health benefits. This study investigated the association of seed and agronomic traits with isoflavone level in a genetically diverse group of soybean genotypes to provide more information for cultivar development. F 4:7 lines derived from several crosses were grown in four locations in 2005 and six locations in 2006 across Ontario and Quebec. Seed protein, oil and isoflavone contents were measured using near-infrared reflectance (NIR) on a plot basis. Seed yield was determined at 13% moisture and days to maturity (R8) were recorded. GGE genotype-bytrait biplots were generated to describe the relationships among all variables. Isoflavone content was not correlated with yield, indicating that potential exists for development of high or low isoflavone cultivars without sacrificing yield. Isoflavone content was negatively correlated with protein content, however high isoflavone lines were identified with moderate protein content. Isoflavone content was correlated with maturity suggesting that delayed planting and/or the use of later maturing varieties could be a successful strategy to increase isoflavone content. The results of this study support the potential for the development of either high or low isoflavone soybean cultivars with acceptable agronomic and seed quality traits.Key words: Soybean, isoflavone, protein, oil, yield, maturity Murphy, S. E., Lee, E. A., Woodrow, L., Seguin, P., Kumar, J., Rajcan, I. et Ablett, G. R. 2009. Relation des caracte`res grainiers et agronomiques avec la concentration d'isoflavones chez le soja. Can. J. Plant Sci. 89: 477Á484. Les graines du soja, Glycine max (L.) Merr., contiennent des isoflavones, compose´susceptible d'avoir des effets be´ne´fiques sur la sante´. L'e´tude examinait les liens qui existent entre la concentration d'isoflavones et les caracte`res grainiers et agronomiques dans un groupe de varie´te´s de soja ge´ne´tiquement varie´, dans le but de fournir plus d'informations en vue de cre´er de nouveaux cultivars. Les ligne´es F 4:7 issues de plusieurs croisements ont e´te´cultive´es a`quatre endroits en Ontario et au Que´bec, en 2005, et a`six, en 2006. La teneur en prote´ines, en huile et en isoflavones des graines a e´te´e´tablie par re´flectance dans le proche infrarouge, dans les parcelles. Le rendement grainier a e´te´mesure´a`13 % de teneur en eau et on a enregistre´le nombre de jours jusqu'a`maturite´(R8). L'analyse GGE par double projection du ge´notype et des caracte`res a permis de de´crire les liens entre les variables. La concentration d'isoflavones n'est pas corre´le´e au rendement, signe qu'on pourrait cre´er des cultivars a`faible ou a`forte concentration d'isoflavones sans que le rendement en souffre. La concentration d'isoflavones pre´sente une corre´lation ne´gative avec la teneur en prote´ines, mais les ligne´es produisant beaucoup d'isoflav...

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Section: Resultssupporting

confidence: 90%

Section: Resultsmentioning

confidence: 99%

Association of seed and agronomic traits with isoflavone levels in soybean

Murphy¹,

Lee²,

Woodrow³

et al. 2009

Can. J. Plant Sci.

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show abstract

“…For instance, high temperatures during flowering may lower CO 2 effects by reducing grain number, size and quality (Thomas et al, 2003;Baker et al, 2004;Caldwell et al, 2005). Likewise, increased water demand under warming may reduce the expected positive CO 2 effects.…”

Section: 1]mentioning

confidence: 99%

Resistance and Resilience of A Stream Salamander To Supraseasonal Drought

2012

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“…Diversos fatores podem influenciar diretamente na viabilidade das sementes armazenadas, tais como: umidade, temperatura, trocas gasosas, características do tegumento da semente, maturidade, infestação por fungos e insetos (CALDWELL et al, 2005;GONÇALVES et al, 2000). Durante o armazenamento sob condições não controladas, as sementes são expostas a oscilações de temperatura e umidade relativa do ar, ataque de pragas e fungos de armazenamento, o que pode contribuir para a redução da qualidade das mesmas (PEREIRA et al, 2005).…”

Section: Introductionunclassified

Tipos de adubação e épocas de avaliação na sanidade e viabilidade de sementes de soja-hortaliça.

Lima

Smiderle²,

Alves

et al. 2014

AGRO@MBIENTE

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Resumo -As sementes de soja-hortaliça, mesma espécie da soja comum, possuem características especiais, tais como: sabor, textura diferenciada para utilização na alimentação humana como hortaliça, quando as sementes estão imaturas, no estádio R 6. Objetivou-se com este trabalho avaliar o efeito de cinco tipos de adubação e duas épocas de avaliação na sanidade e a viabilidade de sementes de soja-hortaliça, cultivar BRS 258 e linhagem BR 9452273. O delineamento experimental utilizado foi de blocos ao acaso, em esquema fatorial (5 x 2), com quatro repetições. Os fatores consistiram de cinco tipos de adubação e duas épocas de avaliação (após a colheita e aos doze meses de armazenamento). Para os tratamentos com doze meses de armazenamento, as sementes de soja-hortaliça dos dois genótipos foram armazenadas em garrafas politereftalato de etileno (Pet). As sementes foram submetidas aos testes de sanidade e de germinação. A redução média de qualidade fisiológica das sementes durante o armazenamento foi de 4% para BRS 258 e de 23% para a BR 9452273. A redução na qualidade fisiológica das sementes dos dois genótipos não foi influenciada pelas adubações utilizadas na produção ou pelos patógenos e bactérias saprófitas, e sim pelo armazenamento por 12 meses em garrafas de politereftalato de etileno. Palavras-chave -Glycine max (L.) Merrill. Patógeno. Vigor de sementes.Abstract -The seeds of vegetable soybeans (Glycine max (L.) Merrill), the same species as the common soybean, have some special characteristics, such as: flavor, texture differentiated for use as vegetable, being consumed when the seeds are still immature at the R 6 stage. The objective of this study was to evaluate the effect of five types of fertilization and evaluation times in the health and viability of seeds of vegetable soybeans cultivar BRS 258, and lineage BR 9452273. The experimental design was a randomized block, 5 x 2 factorial design with four replications. The factors consisted of five types of fertilizer and two evaluation periods (after harvest and the twelve months of storage). For treatments with twelve months of storage, the seeds of vegetable soybeans of both genotypes were stored in polyethylene bottles terephthalate (Pet). Seeds were subjected to stringent health and germination tests. The average reduction in seed quality during storage was 4% for BRS 258 and 23% for BR 9452273. The reduction in seed quality of the two genotypes was not affected by the fertilization method used, nor by pathogens and bacteria saprophytes, but by the storage in polyethylene terephthalate bottles for 12 months.

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Effect of Temperature, Elevated Carbon Dioxide, and Drought during Seed Development on the Isoflavone Content of Dwarf Soybean [Glycine max (L.) Merrill] Grown in Controlled Environments

Cited by 175 publications

References 27 publications

Association of seed and agronomic traits with isoflavone levels in soybean

Association of seed and agronomic traits with isoflavone levels in soybean

Resistance and Resilience of A Stream Salamander To Supraseasonal Drought

Tipos de adubação e épocas de avaliação na sanidade e viabilidade de sementes de soja-hortaliça.

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