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Possible regulation of seed dormancy status by ABA and its interaction with GAs (cross-talk) and environmental factors (mainly, cold and after-ripening). ABA, ET and GAs means relative hormone levels due to action of theirs anabolic and catabolic enzymes. Promotive and repressive effects are shown by arrows and bars, respectively. Interrogation symbol indicates the absence of data to confirm the effect (refs. 2, 10, 187 and 188).
