The roles of abscisic acid and ethylene in the abscission and senescence of cocoa flowers

@article{Aneja2004TheRO,
  title={The roles of abscisic acid and ethylene in the abscission and senescence of cocoa flowers},
  author={Madhu Aneja and Thomas J. Gianfagna and Edward Ng},
  journal={Plant Growth Regulation},
  year={2004},
  volume={27},
  pages={149-155}
}
Cocoa flowers have a limited period of longevity; more than 90% of unpollinated flowers abscised within 32 h after anthesis. Abscisic acid (ABA) levels increased significantly prior to abscission. By 21 h after anthesis, ABA levels had increased almost 10-fold, and by 32 h flowers had 20-fold higher levels of ABA than at anthesis. Fluridone completely inhibited both the increase in ABA, the formation of an abscission zone, and the abscission and senescence of flowers. In contrast, ethylene… CONTINUE READING