3.5. Fineness/linear density
Values from each country differ because of different instruments used; FMT in AUS and arealometer in US.
Associations between fineness and yield gave similar results to micronaire and yield; the countries had significantly different slopes and intercepts (Fig. 5 and Table 2).
The AUS data had a wide range in yield with Acala cultivars yielding less than 2000 kg/ha.
As with micronaire,
when the Acala cultivars were omitted the slope became the same across years.
In the US,
with the exception of 2003,
years prior to 2005 had significantly negative slopes and after 2005,
shifted to significantly positive.
‘ST4892BR’ and Arkot 9308 had the highest fineness values of 140 and 137 μg/m respectively, in 2004.
Acala Maxxa and Acala Ultima were influential points due to their lower lint yields in the US data.