Morphology and Hydraulic Architecture of Vitis vinifera L. cv. Syrah and Torrontes Riojano Plants Are Unaffected by Variations in Red to Far-Red Ratio.

ABSTRACT: Plants have evolved an array of specific photoreceptors to acclimate to the light environment. By sensing light signals, photoreceptors modulate plant morphology, carbon- and water-physiology, crop yield and quality of harvestable organs, among other responses. Many cultural practices and crop management decisions alter light quantity and quality perceived by plants cultivated in the field. Under full sunlight, phytochromes perceive high red to far red ratios (R:FR; 1.1), whereas overhead or lateral low R:FR (below 1.1) are sensed in the presence of plant shade or neighboring plants, respectively. Grapevine is one of the most important fruit crops in the world. To date, studies on grapevine response to light focused on different Photosynthetic Active Radiation (PAR) levels; however, limite

SUBMITTER: Gonzalez CV 

PROVIDER: S-EPMC5135135 | biostudies-literature | 2016

REPOSITORIES: biostudies-literature