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Mid-Parent Heterosis (MPH) in the Metabolite Content of Leaf Tissue from Eight F1 Populations Before (NA; a) or After (ACC; b) 14 d of Cold Acclimation at 4°C.
MPH was calculated as F1 – (P1 + P2)/2 from the mean pool sizes over the three parallel experiments. For computing MPH of cold-acclimated plants, the mean pool sizes of the corresponding cold-acclimated parental plants were used.
