M.Sc. (Botany) (Semester-IV) (CBCS) Examination, 2017
CROP PHYSIOLOGY
Day Date: Wednesday, 26-04-2017 Max. Marks: 70
Time: 02.30 PM to 05.00 PM
N.B. Attempt totally five questions.
Section-I is compulsory.
Attempt any two questions from Q. no. 2 to 4 and
any two questions from Q. no. 5 to 7.
Figures to the right indicate full marks.
Q.1 Choose correct answer form given alternative: 14
Chemicals of substances used to check the rate of transpiration is
known as
Growth retardants Antitranspirants
Herbicides None of these
Ratio of economic yield to the whole biological yield is
Harvest index NAR
Both and None of the above
Substances used to kill the unwanted plants are called
Flowering hormone Weedicides
Growth hormone None of these above.
CIMAP research institute is located at
Jodhapur Delhi Banglore Lucknow
Fruit ripening refers to changes in structure and composition of
frits which make the acceptable to eat. Such changes occurs
during
Early stage of senescence Maturation of Fruit
Abscission of Fruit All of the above
Which of the following statement is incorrect?
Vernalization increases the vegetative period of plant.
Vernalization increases the flowering period
Both and
Only or
Which of the following elements are not called major elements or
macroelements
H AND O P and K
Ca, Sand Mg Fe, Zn and Mo
Rom root hairs Rhizobia penetrate deep into root of plant
through
Nodule Cortical cell walls
Page 2 of 2
Plasmodesmata Infection thread
The minimum or no growth occurs in
Expontial phase Log Phase
Stationary phase All of the above
10) Florigen is associated with the process
Photoperiodism Transpiration
Both and None of the above
11) Which of the following is not biofertilizer?
Trichoderma Rhizobia
Vermicompost Urea
12) What is fullform of ICRISAT?
Indian Crop. Research institute for semi arid tropics.
International Crop Research institute for semi arid tropics.
International cancer Research Institute for semi and tropics
None of the above
13) Verbalization is done at
Low light intensity High temp
Low temp High light intensity
14) Which f the hormone promote flowering in long day plants.
G. A. Axing Ethylene Cytokine E
Q.2 What is growth? Add note on physiological role of growth
regulators in agriculture.
07
Methods of applications of fertilizers. 07
Q3 Factors affecting on source and sink relationship. 07
Brief account on idea of physiological basis of yield of Jawar. 07
Q4 Explain physiology of N2 Fixation is chickpea. 07
Give in detail about research activities occurs in CIMPAP, Luknow
on crop physiology.
07
Q5 Write in short about physiology of mineral neutrino in groundnut. 05
Give the contribution of BARC in crop physiology. 05
Write about N-use efficiency. 04
Q6 Write not on antitranspirants in agriculture. 05
Give post harvest technology of any plant studied by you with
respect to market strategy from field to consumer.
05
What is weedicide? Enlist the names of common weedicides. 04
Q7 Write notes on any three. 14
Photoperiodism
Physiological basis of yield in sugarcanes
Fruit physiology of any one plant studied by you
Organic farming.