Agriculture - Mock Test 240

Question 2391

Leaf roll of potato is caused by?

A) Fungus B) Bacterium C) Virus D) Mycoplasm

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Question 2392

Late blight of potato is caused by?

A) Alternaria solani B) Xanthomonas campestris pv. Citrii C) Phytophthora infestans D) Sychytriu endobioticum

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Question 2393

Irish famine was caused due to?

A) Wheat rust B) Apple scab C) Late blight of potato D) Tomato wilt

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Question 2394

Yellow pigment in the culture is produced by?

A) Pseudomonas B) Xanthomononas C) Erwinia D) Agrobacterium

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Question 2395

Anthracnose of Grape is also known as?

A) Bird's-eye disease B) Buck eye rot C) Black spot D) Both a & c

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Question 2396

In which rust pustules are arranged in end-to-end manner and forming strip?

A) Yellow rust B) Orange rust C) Black rust D) White rust

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Question 2397

Choose the wrong combination?

A) Esso fungicide = Copper oxychloride B) Ziram = Cuman C) Thiram = Hexathir D) Zineb = Kitazin

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Question 2398

Dry root rot of legumes and beans is caused by?

A) Erysiphe B) Macrophomina C) Xanthomonas D) Phacidiopycnis

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Question 2399

In fermentation industry, pasteurization is done at _____ temperature?

A) 90.7 ?C B) 100.0 ?C C) 62.8 ?C D) 80.0 ?C

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Question 2400

In bacterial brown rot and wilt of potato the amount of _____ produced by pathogens are proportional to severity of symptoms?

A) Gibberellins B) Lipids C) Polysncchnride D) Proteins

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