Download PTU B.Sc Agriculture 2019 May 3rd Semester 72556 PRINCIPLE OF PLANT PATHOLOGY Question Paper

Download PTU (Punjab Technical University) BSc Agriculture 3rd Semester 72556 PRINCIPLE OF PLANT PATHOLOGY Last 10 Years 2020, 2019, 2018, 2017, 2016, 2015, 2014, 2013, 2012, 2011 and 2010 Previous Question Papers.

1 | M-72556 (S2)-2567
Roll No. Total No. of Pages : 02
Total No. of Questions : 09
B.Sc.(Agriculture) (2014 & Onwards) (Sem.?3)
PRINCIPLE OF PLANT PATHOLOGY
Subject Code : BSAG-306
M.Code : 72556
Time : 3 Hrs. Max. Marks : 60
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
1. Write briefly :
a) Apothecia
b) Saprophyte
c) Gram positive bacteria
d) Appressoria
e) Bacteria
f) Fungi
g) Parasite
h) Disease Triangle
i) Phytoplasma
j) Pycnidium


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1 | M-72556 (S2)-2567
Roll No. Total No. of Pages : 02
Total No. of Questions : 09
B.Sc.(Agriculture) (2014 & Onwards) (Sem.?3)
PRINCIPLE OF PLANT PATHOLOGY
Subject Code : BSAG-306
M.Code : 72556
Time : 3 Hrs. Max. Marks : 60
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
1. Write briefly :
a) Apothecia
b) Saprophyte
c) Gram positive bacteria
d) Appressoria
e) Bacteria
f) Fungi
g) Parasite
h) Disease Triangle
i) Phytoplasma
j) Pycnidium


2 | M-72556 (S2)-2567
SECTION-B
2. Write major characters of genus Phytophthora.
3. Explain and draw a well labelled diagram of life cycle of rust causing fungi/Puccinia.
4. What is disease cycle and enlist different steps of disease cycle.
5. Contributions of Anton de berry in plant pathology.
6. Write differences between Rhizopus and Mucor and explain it with diagram.

SECTION-C
7. Discuss different mode of the dispersal of plant pathogens.
8. Discuss characters of the genus Erysiphae, Phyllactinia, Uncinula, Podosphaera and
Oidium; draw diagram of ascocarp of respective genera.
9. Explain different cultural and physical management practices for plant diseases.








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page of Answer Sheet will lead to UMC against the Student.

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