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. 2012 Nov 16;64(1):169–184. doi: 10.1093/jxb/ers320

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© 2012 The Author(s).

This is an Open Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/by-nc/2.0/uk/) which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.

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Fig. 2. — Dynamics of floret development in four or two durum wheat cultivars: Claudio, Donduro, Simeto, and Vitron (in experiment 1; A) or Donduro and Vitron (in experiment 2; B) under low (N50, open triangles) or high (N250, open circles) N availability (experiments 1 and 2; A and B, respectively), and irrigated or rainfed conditions (experiment 2; B) during the stem elongation phase for florets 1 and 2 proximal with respect to the rachis in each of the three spikelet categories considered (apical, central, and basal spikelets). Floret development was assessed through frequent determination of floret stages following the scores of the scale of Waddington et al. (1983). As scores lower than W3.5 correspond to spike rather than floret development, whenever a floret primordia at a stage of development earlier than that corresponding to W3.5 was observed, a score of W3 was assigned. (This figure is available in colour at JXB online.)

Fig. 2. — Dynamics of floret development in four or two durum wheat cultivars: Claudio, Donduro, Simeto, and Vitron (in experiment 1; A) or Donduro and Vitron (in experiment 2; B) under low (N50, open triangles) or high (N250, open circles) N availability (experiments 1 and 2; A and B, respectively), and irrigated or rainfed conditions (experiment 2; B) during the stem elongation phase for florets 1 and 2 proximal with respect to the rachis in each of the three spikelet categories considered (apical, central, and basal spikelets). Floret development was assessed through frequent determination of floret stages following the scores of the scale of Waddington et al. (1983). As scores lower than W3.5 correspond to spike rather than floret development, whenever a floret primordia at a stage of development earlier than that corresponding to W3.5 was observed, a score of W3 was assigned. (This figure is available in colour at JXB online.)