BSc third semester,2020(Economic Botany),CBCS Dibrugarh University ,Botany Question Paper
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| Bsc 3rd sem |
Total No. of Printed Pages—3
3 SEM TDC BOTH (CBCS) C 6
2 0 2 0
( Held in April–May, 2021 )
BOTANY
( Core )
Paper : C–6
( Economic Botany )
Full Marks : 53
Pass Marks : 21
Time : 3 hours
The figures in the margin indicate full marks
for the questions
1. Fill in the blanks : 1×5=5
(a) _____ is the centre of origin of coffee.
(b) Coconut fibre is called as _____.
(c) Botanical name of groundnut is _____.
(d) Reserpine, a drug, is extracted from the
medicinal plant _____.
(e) Agar oil, is derived from the _____ of
Aquilaria agallocha.
2. Write short notes on any four of the
following : 3×4=12
(a) IKS
(b) Seasoning of wood
(c) Essential oil
(d) Importance of germplasm diversity
(e) Petrocrops as future fuel
3. Write the botanical names along with their
families of the following plants and also write
on their uses (any four) : (1+1+1)×4=12
(a) Wheat
(b) Sugarcane
(c) Sal
(d) Black Pepper
(e) Linseed
4. Write an account on cultivation, economic
utilization and processing of tea. 5+2+5=12
Or
What do you mean by domestication of plants?
Write an explanatory note on Vavilov’s centre
of origin of crop plants. 4+8=12
16-21/476 ( Continued )
5. Discuss on the tapping, processing and uses
of Rubber. 4+4+4=12
Or
Write an account on the morphology and
utilization of Aloe Vera, Cinchona and
Rauwolfia. 4+4+4=12
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