Anatomy of petal drop in sunflowers

14 enero 2015

Anatomical analysis of two sunflower cultivars revealed a differentiated region at the junction of the flowers’ petal and achene. Cell division at the abscission zone of the short-lived cultivar occurred earlier than in the long-lived cultivar, indicating that the tempo of development differed; the abscission layer reached full maturity sooner in Procut Bicolor, resulting in earlier petal drop, than in Procut Yellow Lite. Vase life was also correlated to flower color.
http://feeds.sciencedaily.com/~r/sciencedaily/~3/JNx9p1U5pvU/150114101644.htm

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