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Effect of a hypothetical heat-stress event on the number of surviving male flowers on five tillers of ‘Paragon’ (A) and ‘Spark-Rialto’ (B) lines. Active male flower numbers are determined by observed flower distribution patterns; heat-stress event starts 1 s.d. prior to mean peak flowering on tiller 1. See Supplementary data Table S1 for model description and parameter estimates.
