M.Sc. (Semester IV) (CBCS) Examination Nov/Dec-2018
Botany
CROP PHYSIOLOGY
Time: 2½ Hours Max. Marks: 70
Instructions: Answer any five questions.
Question No. 1 is compulsory.
Answer any two questions from Q.No.2, 3 4
Answer any two questions Q.No.5, 6 7.
Figures to the right indicate full marks.
Q.1 Rewrite the sentences by choosing correct answer from given alternatives: 14
Aspirin and Salicylic acids controls the movement of
Xylem tissue Phloem tissue
Stomatal aperture None of these
In DNP flowering is interrupted by
Dark Condition is interrupted by Far-red or red-light
Dark Condition is interrupted by red light followed by far-red lights
Dark Condition is interrupted by white or red-light
None of above
The substances which kills weeds known as
Weedicides Fungicides
Bactericides Vivicides
What is full form of BARC?
Bhartia Automatic Research Centre
Bhartia Agricultural Centre
Bhabha Atomic Research Centre
Bhartia Atomic Centre
Growth follows sequence of growth phase is
Lag-log-stationary Log-lag-stationary
Stationary lag Lag-stationary-log
The total weight of sink tissue is known as
Sink-shape Sink-size
Sink weight All of these
Which of the following fertilizer affects badly on agro-ecosystem health
including biodiversity, biological cycle and soil properties?
Compost Inorganic
Organic Green manure
The function of leg hemoglobin is to
Maintain adequate supply of O2 to bacterioids
Protect nitrogenase enzyme inside the bacterioids
Neither a nor b correct
Both a and b correct
Arc indicator used to measure
Growth of plant Rate of Transpiration
Light intensity pH of soil
Page 2 of 2
SLR-VD-115
10) During vernalization the cold temperature is received annual and biennial
plants by
Tips of older leaves Tips of young leaves
Stem apex Roots
11) Which of the following pair of enzyme is involved in softening of fruit during its
ripening?
Peroxidase and catalase Pectinase and peroxidase
Pectinase and cellulose None of these
12) Ratio of economic yield to the whole biological yield.
Harvest index NAR
LAR RGR
13) Which of the following should not be feature of antitranspirants?
Toxic to plant
Cause damage to stomatal apparatus
Causing side effect
All of these
14) Which of the following is only group of minor elements?
Ca, Mg, K NPK
Na, Ca, K Fe, Mo, Zn
Q.2 What is the source and sink relationship? Add note on factors affecting on it.
Describe the physiological basis of yield of Jawar.
07
07
Q.3 Give an account of a post harvest technology of any plant studied by you
w. r. t. field to customer.
What is vernalization? Add note its mechanism.
07
07
Q.4 Give an account of use of growth regulators in agriculture.
Give an idea about physiology of mineral nutrition in groundnut.
07
07
Q.5 Write a short note on the following:
Write note on research contribution of ICRISAT in crop physiology. 05
Give an account of mode of action of weedicides. 05
Write about application of fertilizers through soil. 04
Q.6 Write in short about physiology of N2 fixation in chickpea. 05
What is meant by water use efficiency and n-use efficiency 05
Brief account on idea of physiological basis of yield of sugarcane. 04
Q.7 Write short notes on any three:- 14
Phloem transport
Organic farming and its applications
Research Institute BARC
Post-harvest technology of any fruit studied by you