This subject is very relevant to the Australian Cotton Growing Industry as the most common complaint against our major seed variety, DPL 61, is that this growth has a lower breaking strength when it is produced in Australia particularly in comparison with DPL 61 grown in Arizona, one of our keenest competitors in the South East Asia markets. The main virtue however, it that this variety, in Australia, produces high grades consistently, even.in wet picking seasons, with the exception of the disastrous 1983 harvest when much gray cotton was produced.