Download PTU B.Sc-Agriculture 2020 March 7th Sem 74868 Plant Nematology Question Paper

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Roll No. [ TTTTTT] [ ] Total No. of Pages : 02

Total No. of Questions : 09

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B.Sc. (Agriculture) (Sem.-7)

PLANT NEMATOLOGY

Subject Code : BSAG-PP-706

M.Code : 74868

Time : 3 Hrs. Max. Marks : 60

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INSTRUCTIONS TO CANDIDATES :

1. SECTION-A is COMPULSORY consisting of TEN questions carrying TWO marks each.
2. SECTION-B contains FIVE questions carrying FIVE marks each and students have to attempt any FOUR questions.
3. SECTION-C contains THREE questions carrying TEN marks each and students have to attempt any TWO questions.

SECTION-A

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Q1. Write briefly :

1. What is nematology? Who describe plant pathogenic nematode?
2. What is plant disease management?
3. How you will differentiate nematode diseases from viral diseases in the field?
4. What is parthenogenic reproduction?

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5. What is the function of stylet?

Differentiate the following :

1. Endo- parasite and Ecto- parasite
2. Resistance and Tolerance
3. Inoculum and Inoculum potential

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4. Eradicant and Protectant
5. Nematicide and fungicide

SECTION-B

Q2 Explain the relationship of bacteria and nematode in causing yellow ear rot in wheat. How you manage them?

Q3 a) Describe life cycle of plant parasitic nematode in detail.

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b) Explain with example how the seed treatment is effective and cheaper control method?

Q4 Write characteristic features of Ditylenchus and Radopholus genera.

Q5 Differentiate between Tyilenchulus and Pratylenchus genera.

Q6 Write brief note on nematode as vector of plant Pathogens.

SECTION-C

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Q7 Describe in detail the symptoms, causal organism, disease cycle and management of root knot diseased in vegetables.

Q8 Give short notes on :

1. Physical methods
2. Biological methods
3. Cultural methods of control

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Q9 How plant parasitic nematode enter their hosts? Briefly discuss the factors influencing their dispersal? Give classification of any three nematodes.

NOTE : Disclosure of Identity by writing Mobile No. or Making of passing request on any page of Answer Sheet will lead to UMC against the Student.

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