What are the typical symptoms of the banana disease caused by the race 4 pathogen? a) Yellowing, wilting, cracking of the leaf sheath bundle, and...
What are the typical symptoms of the banana disease caused by the race 4 pathogen?
a) Yellowing, wilting, cracking of the leaf sheath bundle, and breaking of the petiole.
b) Reddish-brown punctuations inside the pseudostem or rhizome and vascular discoloration externally.
c) Narrowing of the leaf blade, thickening of the secondary veins, and necrosis of the shoot apex.
d) Yellowing of the older leaves, followed by yellowing of the younger leaves, starting from the leaf margins and progressing towards the main vein.
a) Yellowing, wilting, cracking of the leaf sheath bundle, and breaking of the petiole.
b) Reddish-brown punctuations inside the pseudostem or rhizome and vascular discoloration externally.
c) Narrowing of the leaf blade, thickening of the secondary veins, and necrosis of the shoot apex.
d) Yellowing of the older leaves, followed by yellowing of the younger leaves, starting from the leaf margins and progressing towards the main vein.
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A resposta correta é a alternativa d) Yellowing of the older leaves, followed by yellowing of the younger leaves, starting from the leaf margins and progressing towards the main vein. Esses são os sintomas típicos da doença da banana causada pelo patógeno da raça 4.
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