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Fig. 1 | BMC Plant Biology

Fig. 1

From: An invaluable transgenic blueberry for studying chilling-induced flowering in woody plants

Fig. 1

Flowering of Mu-Legacy and nontransgenic ‘Legacy’ plants. a, b, Flowering of two-year old, nonchilled Mu-Legacy (a) and ‘Legacy’ (b) plants under a short-day photoperiod (nine hours). Red arrows indicate flowers, fruits, or flower buds. c, d, Flowering of fully chilled two-year old Mu-Legacy (c) and ‘Legacy’ (d) plants under a long-day photoperiod (14 h). e, f, Pattern of flowering when three-year old Mu-Legacy and ‘Legacy’ plants (n = 6) were grown in greenhouses under nonchilling conditions with a short-day photoperiod (nine hours) (e) and a long-day photoperiod (16 h) (f). The primary y-axis is for the line chart and the secondary y-axis is for the column chart. The bars are showing the mean number of flower buds per plant and the number of flower buds that bloomed. Each data point is an average of six plants plus standard deviation bars. g, In addition to the flowering pattern observed under a short-day photoperiod (nine hours) (a), flowering was shown on the new shoots of Mu-Legacy under a long-day photoperiod (16 h). h, A shorter Mu-legacy plant is showing more fruit production than a nontransgenic ‘Legacy’ plant. The five-year old plants were grown in a secured courtyard under natural environmental conditions. Significance (compared to nontransgenic ‘Legacy’) determined using a Student’s t-test is denoted. One asterisk (*) indicates p < 0.05 and two asterisks (**) indicate p < 0.01

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