Thigmomorphogenesis and biomechanical responses of shade-grown Serianthes nelsonii plants to stem flexure.
Plant Signal Behav
; 14(7): 1601953, 2019.
Article
em En
| MEDLINE
| ID: mdl-30985234
ABSTRACT
The influences of stem flexure on shade-grown Serianthes nelsonii Merr. stem growth and strength were determined in a container nursery setting. Treated stems were bent 90° two times daily for a 14 wk nursery production period. Plant height, internode length, and slenderness were decreased by stem flexure when compared with control plants that received no flexure. Two force-displacement tests revealed stem strength was increased by the flexure treatment. Control plants exhibited undesirable lean of the main stem, and 1 hr of wind stress further increased the angle of lean. Treated plants were close to orthotropic and the wind stress did not change the stem lean. Results indicate stem flexure is a reliable method for increasing the quality of shade-grown S. nelsonii plants and some form of mechanical stimulation should be added to nursery production protocols for the species.
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MEDLINE
Assunto principal:
Caules de Planta
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Fabaceae
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Morfogênese
Idioma:
En
Ano de publicação:
2019
Tipo de documento:
Article