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Expression of the Arabidopsis PHYB transgene reduces stem growth responses to plant density. A, PHYB protein levels detected in leaf extracts. The ratio between PHYB-associated alkaline phosphatase band intensity and total protein Ponceau S staining is expressed relative to the WT ratio. B, Stem length plotted against plant density. Plants were grown outdoors at the indicated plant density. Data are means and se of four blocks.
