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Photo Library: Growth Stages
Stage 3: R-9

The bracts become yellow and brown. This stage is regarded as physiological maturity.



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Mature Field

Name: Mature Field
Description: A sunflower field that is mature and the leaves are still green
ID Name: SUN112
Size: 154K

 R-9 Stage

Name: R-9 Stage
Description: Sunflower plant in R-9 stage
ID Name: SUN111308M
Credits: NDSU Ext. Bulletin 25
Size: 71K

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