A Study in Cereal Rusts; Physiological Races: A Thesis Submitted to the Faculty of the Graduate School of the University of Minnesota (Classic Reprint) - Tapa dura

Sinopsis

Excerpt from A Study in Cereal Rusts; Physiological Races: A Thesis Submitted to the Faculty of the Graduate School of the University of Minnesota

Wheat and barley are not included since in nearly every case 100 per cent of infection results. The denominator in each case represents the total number of leaves inoculated, and the numerator, the number of leaves which developed pustules.

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