
%0 Journal Article
%A Shorter, R 
%A Norman, RJ 
%T Cultivar cross environment interactions for kernel yield in Virginia type peanuts (<I>Arachis hypogaea</I> L.) in Queensland
%J Australian Journal of Agricultural Research
%D 1983/08/01
%V 34
%N 4
%P 415-426
%K 
%R https://doi.org/10.1071/AR9830415
%U https://www.publish.csiro.au/paper/AR9830415 
%X Twelve Virginia type peanut cultivars were evaluated for kernel yield at 10 sites in 1979 and nine sites in 1980 in southern and northern Queensland. Two trials, harvested 9-14 days apart, were grown at each site in 1979, resulting in a total of 29 test environments. In 1979 the cultivar x site (c x s) interaction was significant, although the cultivar x harvest date within-site interaction was not. Over all 29 environments the cultivar x environment (c x e) interaction was significant. In orthogonal sets of five sites and 2 years, cultivar x year x site interactions were significant, whereas cultivar x year and c x s interactions generally were not. Pattern analysis revealed that cultivars of dissimilar genetic origin had different productivity responses across environments. An environmental classification based on c x e interactions indicated that there were no temporal or closely related regional environment groups with similar c x e interactions. Lower critical percentage differences between new and established cultivars in a pre-release testing program would be obtained by adding environments rather than replicates, or by accepting a greater risk of misjudging a new cultivar's superiority (higher probability of type I error). 
