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Basal leaf senescence in a sunflower (Helianthus annuus) canopy: responses to increased R/FR ratio
(Wiley Blackwell Publishing, Inc, 2000-12)
Senescence of lower leaves (LS) begins before anthesis in sunflower crop canopies. Using isolated field‐grown sunflower plants, it has previously been shown that pre‐anthesis LS is dependent on photosynthetic photon flux ...
Manipulation of Light Environment to Produce High-quality Poinsettia Plants
(American Society for Horticultural Science, 2009-06)
The phytochromes, a family of photoreceptors which maximally absorb red (R) and Far-red (FR) light, play an important role defining plant the architecture of the plant and consequently its value in the market. In this work ...
Disentangling the decrease in R:FR and light intensity on the plant density effect on crop biomassDisentangling the decrease in r:fr and light intensity on the plant density effect on crop biómass
(2018)
Background and Aim: The plant density effect on plant biomass is due to a decrease in R:FR and PAR availability per plant. These processes are entangled, as the decrease in R:FR contributes to the decrease in PAR per plant ...
Physiological responses of spring rapeseed (Brassica napus) to red/far-red ratios and irradiance during pre- and post-flowering stages
(Wiley, 2014-12)
Early shade signals promote the shade avoidance syndrome (SAS) which causes, among others, petiole and shoot elongation and upward leaf position. In spite of its relevance, these photomorphogenic responses have not been ...
Changes in leaflet shape and seeds per pod modify crop growth parameters, canopy light environment, and yield components in soybean
(Elsevier, 2020-04)
Seed number (SN) is the component most strongly associated with yield in soybean. SN depends on pod number (PN) and seeds per pod (SPP). Whereas SPP is a relatively stable component, PN is strongly influenced by environmental ...
The timing of low R: FR exposure profoundly affects Arabidopsis branching responses
(Taylor & Francis, 2014)
The ratio of Red to Far Red light (R:FR) is sensed by phytochromes, including phytochrome B, and serves as a signal of potential competition. Low R:FR represses Arabidopsis thaliana branching by promoting the accumulation ...
Phytochrome B increases drought tolerance by enhancing ABA sensitivity in Arabidopsis thaliana
(Wiley Blackwell Publishing, Inc, 2012-11)
Phytochrome B (phyB) can adjust morphological and physiological responses according to changes in the red:far-red (R:FR) ratio. phyB-driven acclimation of plants to open environments (high R:FR ratio) increases carbon gain ...
Linking phytochrome to plant immunity: low red : far-red ratios increase Arabidopsis susceptibility to Botrytis cinerea by reducing the biosynthesis of indolic glucosinolates and camalexin
(Wiley, 2014-10)
Shade-intolerant plants respond to low red : far-red (R : FR) ratios, which signal the proximity of potential competitors, by down-regulating immune responses. Here we investigated the mechanisms underlying this immune ...