Which one of the following statements is not correct

Out of the given options, the calcium carbide chemical not used for artificial ripening in a banana is wrong as it is used in the ripening of a banana. While all the other three statements are correct.
Ethylene gas, acetylene gas liberated from calcium carbide and ethephon are some of the commercial ripening agents used successfully in the trade and they have been widely studied for their effectiveness in initiating and accelerating the ripening process and their effect on fruit quality and health-related issues.