I just read this:
"Some claim that the famous gold color of Acapulco Gold came from a technique of "girdling" the plants, or cutting through the xylem and phloem layers of the stalk, before harvest. This supposedly would cut off the flow of nutrients to the plant, leaving the stalks and buds a blanched golden color at harvest time. Many techniques such as this are used by traditional growers to shock or stress the plant during flowering, in the belief that the plants will respond to stress by producing more of the active (THC-containing) resins responsible for the plants' medicinal potency. This theory has been refuted by people who have grown Acapulco Gold outside of Mexico. The gold coloring is the natural coloring of this plant. More specifically, when grown under normal conditions, Acapulco Gold will cure with golden pistils and yellow to pale green leaves which makes for an overall golden appearance. This is the same with Santa Marta Colombian Gold. Another theory suggests that Acapulco Gold's potency and hue was a result of short-day parthenocarpy which can occur naturally in Mexico due to 11 hour photoperiods and high levels of UVB radiation and the plant's heterozygous genome. However, this theory would imply that only Acapulco Gold grown and harvested in it's native regions in Mexico would live up to the strain's legendary potency."
"Some claim that the famous gold color of Acapulco Gold came from a technique of "girdling" the plants, or cutting through the xylem and phloem layers of the stalk, before harvest. This supposedly would cut off the flow of nutrients to the plant, leaving the stalks and buds a blanched golden color at harvest time. Many techniques such as this are used by traditional growers to shock or stress the plant during flowering, in the belief that the plants will respond to stress by producing more of the active (THC-containing) resins responsible for the plants' medicinal potency. This theory has been refuted by people who have grown Acapulco Gold outside of Mexico. The gold coloring is the natural coloring of this plant. More specifically, when grown under normal conditions, Acapulco Gold will cure with golden pistils and yellow to pale green leaves which makes for an overall golden appearance. This is the same with Santa Marta Colombian Gold. Another theory suggests that Acapulco Gold's potency and hue was a result of short-day parthenocarpy which can occur naturally in Mexico due to 11 hour photoperiods and high levels of UVB radiation and the plant's heterozygous genome. However, this theory would imply that only Acapulco Gold grown and harvested in it's native regions in Mexico would live up to the strain's legendary potency."