Does seed size affect the germination rate and seedling growth of peanut under salinity and water stress?

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dc.creatorFábio Steiner
dc.creatorAlan Mario Zuffo
dc.creatorAécio Busch
dc.creatorTiago de Oliveira Sousa
dc.creatorTiago Zoz
dc.date2019
dc.date.accessioned2026-07-07T04:30:11Z
dc.descriptionSeed size is an important indicator of physiological quality, since it may affect seed germination and seedling growth, especially under stress conditions. This study aimed to investigate the effects of seed size on germination and initial seedling growth, under salinity and water stress conditions. The treatments were arranged in a completely randomized design, in a 3 × 3 factorial scheme: three seed size classes (small, medium and large) and three stress treatments (control, saline or water stress), with four replicates. Water and salt stresses do not reduce the germination rate of medium and large seeds; however, the germination rate of small seeds is reduced under salt stress conditions. Drought stress drastically reduces the shoot growth of seedlings regardless of seed size, whereas root growth is higher in seedlings from medium and large seeds under water stress conditions. Under non-stressful environments, the use of large seeds is preferable, resulting in more vigorous seedlings with a greater dry matter accumulation. Medium-size seeds are more adapted to adverse environmental conditions and, therefore, should be used under conditions of water shortage and salt excess in the soil at sowing time. Seedlings are more tolerant to salinity than to water stress during the germination stage and initial growth under laboratory conditions.
dc.formatapplication/pdf
dc.identifier1517-6398
dc.identifierhttps://www.redalyc.org/articulo.oa?id=253067965012
dc.identifierhttps://www.redalyc.org/journal/2530/253067965012/
dc.identifierhttps://www.redalyc.org/journal/2530/253067965012/html/
dc.identifierhttps://www.redalyc.org/journal/2530/253067965012/253067965012.epub
dc.identifierhttps://www.redalyc.org/journal/2530/253067965012/movil
dc.identifier.urihttp://hdl.handle.net/123456789/463361
dc.languageen
dc.publisherUniversidade Federal de Goiás
dc.relationhttp://www.redalyc.org/revista.oa?id=2530
dc.rightsPesquisa Agropecuária Tropical
dc.sourcePesquisa Agropecuária Tropical (Brasil) Vol.49
dc.subjectAgrociencias
dc.titleDoes seed size affect the germination rate and seedling growth of peanut under salinity and water stress?
dc.typeartículo científico

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Pesquisa Agropecuária Tropical - Universidade Federal de Goiás