7 CFR § 29.6023 - Leaf structure.
§ 29.6023 Leaf structure.
The cell development of a leaf as indicated by its porosity. The degrees range from close (slick and tight) to open (porous). (See chart.)
The cell development of a leaf as indicated by its porosity. The degrees range from close (slick and tight) to open (porous). (See chart.)