Differences between wheat and barley in leaf and tillering coordination under contrasting nitrogen and sulfur conditions

Alzueta, Ignacio; Abeledo, L. Gabriela; Mignone, César M.; Miralles, Daniel J.

doi:10.1016/j.eja.2012.04.002

Cited by 63 publications

(55 citation statements)

References 49 publications

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“…, Salvagiotti and Miralles , Alzueta et al. ) and the effect was higher in barley than in wheat (Abeledo et al. , Salvagiotti and Miralles , Alzueta et al.…”

Section: Introductionmentioning

confidence: 98%

“…, Salvagiotti and Miralles , Alzueta et al. ). The synchrony between leaf and tiller appearance is in general affected by the environment, because the tillering process is strongly influenced by resource availability.…”

Section: Introductionmentioning

confidence: 98%

“…, Alzueta et al. ). Waterlogging significantly reduces biomass accumulation in wheat, this associated with negative effects on initiation and growth of tillers (Malik et al.…”

Section: Introductionmentioning

confidence: 99%

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Waterlogging Affects Leaf and Tillering Dynamics in Wheat and Barley

Celedonio

Abeledo

Brihet

et al. 2015

J Agronomy Crop Science

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The aim of this study was to analyse (i) the crop attributes that determine flowering time (i.e. final leaf number, FLN; and phyllochron, Phy), (ii) the dynamics of tiller appearance and (iii) the synchrony between leaf and tiller appearance in wheat and barley plants exposed to waterlogging. Two experiments were carried out in pots, in which wheat and barley cultivars were exposed to five waterlogging treatments, during different periods throughout the crop cycle, from emergence to maturity. The appearance of leaves and tillers on the main stem was measured twice a week in labelled plants. Waterlogging from emergence to flag leaf appearance significantly delayed time to flowering. The delay was greater when waterlogging occurred at the beginning of tillering, lengthening the period from emergence to flowering 24 % (13–15 days) in barley and 10–15 % (6–10 days) in wheat, as compared to control. Phy was the main attribute explaining the delay in flowering, as FLN was not altered. Waterlogging during the early stages of development reduced tiller appearance rate (TAR) in both species, but this effect was partially counterbalanced by a lengthening of the tillering phase, so the effect on final tiller number at maturity was limited. In conclusion, the exposure of wheat and barley to waterlogging during early stages of development delayed time to flowering and reduce TAR in both species. Waterlogging during more advanced crop stages produced slight effects on tillering dynamics, which would indicate that waterlogging affected structure generation more than mortality.

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“…, Salvagiotti and Miralles , Alzueta et al. ) and the effect was higher in barley than in wheat (Abeledo et al. , Salvagiotti and Miralles , Alzueta et al.…”

Section: Introductionmentioning

confidence: 98%

Section: Introductionmentioning

confidence: 98%

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Waterlogging Affects Leaf and Tillering Dynamics in Wheat and Barley

Celedonio

Abeledo

Brihet

et al. 2015

J Agronomy Crop Science

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“…Tiller bud break and tiller senescence are known to directly depend on environmental conditions, such as soil phosphorus (e.g., Rodríguez et al, 1999; Dingkuhn et al, 2006) and nitrogen (Zhong et al, 2003; Alzueta et al, 2012), and the red/far-red ratio (R:FR) of the light within the canopy (e.g., Casal et al, 1987; Sparkes et al, 2006). To accurately describe the tillering response of cereal plants to local light or nutrient conditions in an FSP model of cereal development, dose–response curves can be implemented.…”

Section: Modeling Regulation Of Tilleringmentioning

confidence: 99%

“…Both soil nitrogen and phosphorus affect tillering in cereals (Rodríguez et al, 1999; Zhong et al, 2003; Dingkuhn et al, 2006; Alzueta et al, 2012). Soil nitrogen limitation can suppress branch growth directly (McIntyre, 2001) and through an effect on production of cytokinin (Tomlinson and O’Connor, 2004).…”

Section: Modeling Regulation Of Tilleringmentioning

confidence: 99%

Modeling branching in cereals

Evers

Vos

2013

Front. Plant Sci.

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Cereals and grasses adapt their structural development to environmental conditions and the resources available. The primary adaptive response is a variable degree of branching, called tillering in cereals. Especially for heterogeneous plant configurations the degree of tillering varies per plant. Functional–structural plant modeling (FSPM) is a modeling approach allowing simulation of the architectural development of individual plants, culminating in the emergent behavior at the canopy level. This paper introduces the principles of modeling tillering in FSPM, using (I) a probability approach, forcing the dynamics of tillering to correspond to measured probabilities. Such models are particularly suitable to evaluate the effect structural variables on system performance. (II) Dose–response curves, representing a measured or assumed response of tillering to an environmental cue. (III) Mechanistic approaches to tillering including control by carbohydrates, hormones, and nutrients. Tiller senescence is equally important for the structural development of cereals as tiller appearance. Little study has been made of tiller senescence, though similar concepts seem to apply as for tiller appearance.

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Canopy Management

2022

Wheat

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Differences between wheat and barley in leaf and tillering coordination under contrasting nitrogen and sulfur conditions

Cited by 63 publications

References 49 publications

Waterlogging Affects Leaf and Tillering Dynamics in Wheat and Barley

Waterlogging Affects Leaf and Tillering Dynamics in Wheat and Barley

Modeling branching in cereals

Canopy Management

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