Download SGBAU BSc 2019 Summer 5th Sem Seed Technology Seed Pathology n Seed Entomolgy Question Paper

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B.Sc. (Part—III) Semester—V Examination

SEED TECHNOLOGY

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(Seed Pathology and Seed Entomology)

Time : Three Hours] [Maximum Marks : 80

N.B. :— (1) There are SEVEN questions in all.

(2) Question No. 1 is compulsory and carries 8 marks.

(3) Question Nos. 2 to 7 carry equal marks.

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(4) Draw neat and well labelled diagrams wherever necessary.

1. (A) Fill in the blanks :
   1. Plant ________ is the scientific study of diseases in plants caused by pathogens.
   2. ________ are the best pollinators in a building state during the bloom period of the crop.
   3. Seed transmitted fungi are those that cause no infection to seed itself but infect ________ in the field.
   4. ________ is a procedure by which it can be determined whether the seed is healthy or diseased.

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2. (B) Choose correct alternative :
   1. What is meant by CSL ?
      1. Central Success Laboratory
      2. Central Scientific Laboratory
      3. Central Seed Laboratory
      4. Central Science Laboratory

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   2. Seed Act to provide for regulating the quality of seeds for sale was established in :
      1. 1950
      2. 1966
      3. 1970
      4. 1961

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   3. When growth and development of plant are delayed due to unfavourable weather, the virus infections in seed is :
      1. Neutral
      2. Decreased
      3. Increased
      4. None of these

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   4. The pollination takes place by insects :
      1. Hydrophily
      2. Anemophily
      3. Entomophily
      4. Chirapterophily

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3. (C) Answer in one sentence :
   1. Storage fungi
   2. Seed certification
   3. Pollinators

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   4. Insecticides

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Describe

1. (a) Seed infection

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2. (b) Impact of storage fungi on human Health
3. (c) General account of seed borne viruses.

OR

1. (d) Storage fungi
2. (e) Impact of storage fungi on animal health

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3. (f) Economic significance of seed born diseases.

5. Write short notes on :
   1. (g) Quarantines of seed health testings
   2. (h) Procedure of seed treatment

OR

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Give detailed account of equipments used in seed treatment.

6. Comment on :
   1. (i) Seed certification
   2. (j) International cooperation in seed pathology
   3. (k) Seed Act of seed borne diseases

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OR

1. (l) Post seedling stage inspection
2. (m) Tolerance limit of seed borne pathogens
3. (n) National cooperation in seed pathology.

7. Write short notes on :
   1. (o) Insects body and apper

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   2. (p) Insects pests and their management.

OR

1. (q) Economic importance according to orders of insects.
2. (r) Vegetables and dry fruits.

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8. Comment on :
   1. (s) Preparation of spray solution
   2. (t) Methods of insect control
   3. (v) Uses of insect pollinators in crop pollination.

OR

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1. (v) Social structure of honey bees
2. (w) Pre-harvest sanitation spray in insect control
3. (x) Role of beneficial insects in seed production.

9. Describe :
   1. (a) Fumigants
   2. (b) Plant protection equipments

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   3. (c) Rodents and their control

OR

1. (d) Impact of seed protectants on seed viability
2. (e) Detection of infestation

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3. (f) Types of seed equipments

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