Question

question below.)
On leaf, the lesions are round or elongated,
bearing irregularly depressed brown spot and
surrounded by a brownish red margin is
symptoms of
Options
Ascochyta blight of Bengal gram
Rust of Bengal gram
Wilt of Bengal gram
Stunt disease of Bengal gram​

Answer 1

Ascochyta blight of Bengal gram.

• Ascochyta Blight is a plant disease that can potentially infect the entire plant.
• This disease causes visible brown and slightly reddish spots on the leaves and these are usually symptoms.
• This disease also infects the stem and, if not detected early, can infect the entire plant.
• Lesions on the leaf are round or elongated, with irregularly depressed brown spots and a brownish red margin.
• On the stem and pods, similar spots may also appear.
• Pycnidia are arranged in concentric circles as minute block dots on the stem and pods.
• When lesions encircle the stem, the portion above the point of attack dies quickly.

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Answer 2

Answer:

The correct option is: Ascochyta blight of Bengal gram

Explanation:

• All above-ground plants exhibit Ascochyta blight of Bengal gram because they are all afflicted.
• Ascochyta rabiei is its scientific name. The lesions are spherical or elongated, with irregularly depressed brown spots, and they are encircled by a brownish red margin on the leaf of these plants.
• The stem and pods may develop comparable blotches. Pycnidia are tiny block dots organised in concentric rings that are present in the spots on the stem and pods.
• The part of the stem above the place of attack quickly dies when the lesions girdle it. The entire plant perishes if the main stem is girdled at the collar area.

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