Download PTU B.Sc Agriculture 2019 May 3rd Semester 72552 PLANT PHYSIOLOGY Question Paper

Download PTU (Punjab Technical University) BSc Agriculture 3rd Semester 72552 PLANT PHYSIOLOGY Last 10 Years 2020, 2019, 2018, 2017, 2016, 2015, 2014, 2013, 2012, 2011 and 2010 Previous Question Papers.

1 | M-72552 (S2)-2292
Roll No. Total No. of Pages : 02
Total No. of Questions : 09
B.Sc.(Agriculture) (2014 & Onwards) (Sem.?3)
PLANT PHYSIOLOGY
Subject Code : BSAG-302
M.Code : 72552
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
Q1. Write short notes on :
a) Hydroponics
b) Symplast
c) Scarification
d) Plant physiology
e) Endospermic seeds
f) Coleoptile
g) Day neutral plants
h) Vernalization
i) Non-climacteric fruits
j) Harvest maturity
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1 | M-72552 (S2)-2292
Roll No. Total No. of Pages : 02
Total No. of Questions : 09
B.Sc.(Agriculture) (2014 & Onwards) (Sem.?3)
PLANT PHYSIOLOGY
Subject Code : BSAG-302
M.Code : 72552
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
Q1. Write short notes on :
a) Hydroponics
b) Symplast
c) Scarification
d) Plant physiology
e) Endospermic seeds
f) Coleoptile
g) Day neutral plants
h) Vernalization
i) Non-climacteric fruits
j) Harvest maturity
2 | M-72552 (S2)-2292
SECTION-B
Q2. Discuss the structure of gram seed with the help of well labeled diagrams.
Q3. Differentiate between epigeal and hypogeal germination. Give two examples of each.
Q4. Differentiate between C3, C4 and CAM plants.
Q5. Discuss the importance of plant physiology in agriculture.
Q6. Discuss various causes of seed dormancy.

SECTION-C
Q7. a) Describe the mechanism of photorespiration in plants.
b) Discuss the apoplastic and symplastic pathway for translocation of assimilates in
plants.
Q8. Discuss occurrence, biosynthesis, mode of action and commercial applications of
gibberellins in plants.
Q9. Discuss physiological roles and deficiency symptoms of phosphorus and magnesium in
plants.







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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