M.Sc. (Semester IV) (CBCS) Examination Mar/Apr-2018
Botany
CROP PHYSIOLOGY
Time: 2½ Hours
Max. Marks: 70
Instructions: Question 1 is compulsory. Attempt any two questions from Q.2, 3 4. Attempt any two short notes questions from Q.5, 6 7. Attempt totally five questions. Figures to the right indicate full marks.
Q.1
Rewrite the following sentences by choosing correct alternative:-
14
Which of the following affects on activity of stomata to check the loss of water in the form of water vapor?
Antitranspirants
Weedicides
Growth retardants
None of these
Harvest index is nothing but


NAR
Both and
Weedicides used to kill
Desired plants
Unwanted plants

Trees
Microbes
CIMAP research institute is located in
Delhi
Maharashtra
Karnataka
Uttar Pradesh
Fruit ripening refers to change in structure and composition of fruit which make the acceptable to eat. Such changes occurs during
Maturation of Fruit
Early stage of senescence
Abscission of fruit
All of these
condition required for initiation of flowering during vernalization.
Hot temp.
Cold temp.
Both and
None of these
Which of the following elements are not called minor element.
Fe, Zn and Mo
Ca, Mg, N
Cu, Mn, Co
All of these
Both the partners are benefited from each other such as association is known as
Asymbiotic
Parasitic
Epl Physic
Symbiotic
The maximum or more plant growth occurs in
Log phase
Lag phase
O
Stationary phase
Death phase
Page 2 of 2
SLR-UD-135
10) Florigen synthesis takes place in
Shoot apex
Stem
Roots
Leaves
11) Which of the following group is not biofertilizer?
Rhizobium and Azotobacter culture
DAP and Urea
Vemicompost and green manure
Compost and cow dung
12) What is full form of ICRISA?
Indian crop Research Institute for semi-arid Tropics
International crop Research Institute for semi arid Tropics
International Cancer Research Institute for semi arid Tropics
All of the above
13) tissue in which loading and unloading of solute occurs
Xylem
Pith
Epidermis
Phloem
14) G.A growth hormone promotes Flouring in
DNP
SDP
LDP
All of these
Q.2
What is source and sink relationship? Add note on factor affecting on it.
07
Give an account of physiological basis of yield in wheat.
07
Q.3
Give an account of mode of action of any one weedicide studied by you.
07
Write the contribution of CIMAP institute in crop physiology.
07
Q.4
What is organic farming? Add note on its importance.
07
Explain physiology of N2 fixation in chick pea.
07
Q.5
Write in short physiological basis of yield of sugarcane.
05
Explain the research activities carried out in ICRISAT in relation with crop physiology.
05
Write note on role of antitranspirants in agriculture.
04
Q.6
Write in short on post-harvest technology of grape w. r. t. market strategy from field to customer.
05
Define the term weedicide? Enlist common weeds and weedicides.
05
What is contribution of BARC in crop physiology?
04
Q.7
Write notes on any three.
14
Photoperiodism
Physiological basis of yield in cotton
Physiology of mineral nutrition of groundnut
Foliar application of fertilizer