
%0 Journal Article
%A Carter, MV 
%A Yap, ASJ 
%A Pady, SM 
%T Factors affecting uredospore liberation in <I>Puccinia antirrhini</I>
%J Australian Journal of Agricultural Research
%D 1970/12/01
%V 21
%N 6
%P 921-925
%K 
%R https://doi.org/10.1071/AR9700921
%U https://www.publish.csiro.au/paper/AR9700921 
%X Air sampling within an annular field plot of rusted snapdragons, and in a wind tunnel, has shown that uredospores of Puccinia antirrhini are readily liberated by wind shear at speeds = 2 m/sec. At constant temperature and wind speed, most uredospores are liberated in the light, mainly in the morning. Liberation in dry air is related logarithmically to wind speed; it is increased by the onset of rainfall or overhead sprinkling, and by bombarding sori with water droplets in the wind tunnel. 
