is produced from pure strain varieties of the Barbadense species or any hybrid thereof, or other similar types of extra long staple cotton, designated by the Secretary, having characteristics needed for various end uses for which United States upland cotton is not suitable and grown in irrigated cotton-growing regions of the United States designated by the Secretary or other areas designated by the Secretary as suitable for the production of the varieties or types; and

is ginned on a roller-type gin or, if authorized by the Secretary, ginned on another type gin for experimental purposes.