uredinium

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Related to uredia: uredinia, telia

uredinium

[‚yu̇r·ə′din·ē·əm]
(mycology)
A reproductive tissue of the rust fungus which gives rise to urediniospores.
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References in periodicals archive ?
MS Moderately susceptible###Medium sized uredia are present and possibly surrounded by some chlorotic areas.
M###Intermediate (Mixed)###Variable sized uredia are present some with chlorosis, necrosis or both
R###Resistant###Visible chlorosis or necrosis, no uredia are present.
0 = winter killed and 9 = no winter injury, May, 1994 and 1995), leaf texture (1-9, 1 = coarse and 9 = very fine-leaved, May 1994 and June 1995), crown rust resistance (1-9, 1 = covered with uredia and uredospores and 9 = clean of uredospores, July 1994 and August 1995), turf quality (1-9, 1 = poor quality and 9 = excellent quality, September, 1994 and 1995), and growth habit (1-5, 1 = extremely prostrate and 5 = upright, June 1994).
In Ithaca, disease was scored once on single 1-m rows at about 85 d from planting using a 0 to 9 scale based on proportion of leaf area covered by uredia.
In % total leaf area covered with uredia, estimated as twice the slope of the best-fitting regression in the interval.
Inheritance of slow rusting of barley infected with Puccinia hordei and selection of latent period and number of uredia. Phytopathology 69:145-151.
The uredia on Jupateco 73R and Jupateco 73S were of `moderately susceptible-susceptible' and `susceptible' type, respectively.