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Perspectives for using light quality knowledge as an advanced ecophysiological weed management tool Planta Daninha
Merotto Jr.,A.; Fischer,A.J.; Vidal,R.A..
The current knowledge of light quality effects on plant morphogenesis and development represents a new era of understanding on how plant communities perceive and adjust to available resources. The most important consequences of light quality cues, often mediated by decreasing in red far-red ratios with respect to the spectral composition of incident sunlight radiation, affecting weed-crop interaction are the increased plant height and shoot to root ratio in anticipation of competition by light quantity, water or nutrients. Although the concepts related to light quality have been extensively studied and several basic process of this phenomenon are well known, little applications of photomorphogenic signaling currently are related to agricultural problems or...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Critical period for weed control; Crop-weed interactions; Red/far-red ratio; Shade-avoidance; Weed thresholds.
Ano: 2009 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-83582009000200025
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