Agriculture - Mock Test 225

Question 2241

The plant disease primarily responsive for the"Great Bengal Famine" of 1943 was?

A) Blast disease of rice B) Bacterial blight of rice C) Udbatta disease of rice D) Brown leaf spot of rice

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Question 2242

The plant disease caused by an algae is?

A) Blue mold of tobacco B) Red rust of tea C) Aster yellows D) None of the above

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Question 2243

The organisms lacking a well defined nucleus are termed?

A) Fungi B) Prokaryote C) Eukaryote D) Protozoa

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Question 2244

The organisms included in order Peronosporales cause the disease known as?

A) Rusts B) Smut C) Downy mildew D) Powdery mildew

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Question 2245

The organism lacking a well defined necleus are termed?

A) Fungi B) Prokaryote C) Eucaryote D) Protozoa

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Question 2246

The organism included in order pernosporales cause the disease known as?

A) Downy mildew B) Smut C) Rust D) Powdery mildew

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Question 2247

The nematode Radopholus similes has shown the maximum numbers at a soil depth of?

A) 5-15 m B) 20-30 m C) 32-42 m D) 1-4 m

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Question 2248

The microorganism, used in brewing industry is?

A) Aspergillus B) Yeast C) Rhizobium D) Virus

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Question 2249

Sugar beet cyst nematode was reported by?

A) Needham B) Cobb C) Schacht D) Smith

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Question 2250

Strawbery plants infected with P. penetrans (nematode) have been successfully treated with exposure in hot water at?

A) 49.4?C for 17.5 min. B) 52.8?C for 6 min. C) 54.5?C for 4 min. D) 56?C for 2 min.

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