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. 2018 Jun 29;9:888. doi: 10.3389/fpls.2018.00888

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Copyright © 2018 Arjona, Royo, Dreisigacker, Ammar and Villegas.

This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) and the copyright owner(s) are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.

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Relationship between mean daylength (h) from double ridge to terminal spikelet (A,C,E) and accumulated solar radiation (MJ m^-2) from terminal spikelet to booting (B,D,F) and spikelets spike^-1 for the 23 durum wheat genotypes carrying the Ppd-B1a (∘) and Ppd-B1b (•) alleles, for each site across 3 years.