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if}   Fig. 7 — Strawberry roots _
J affected with the red stele .  
A root disease.
A. - Diseased roots showing
F_ 6 dead, discolored tip
lg' A- ends; upper portion of
roots not discolored.
A. — Normal strawberry plant;
B,. - Diseased roots split
Br. - lant affected with red stele len thwise to show red-
P S
root disease. ‘ dened central portion.
Note the absence of small feeding A C. - Normal roots split len-
roots in B, as compared with the gthwise to show absence
normal root system. of red center. (All
slightly enlarged.)