Top 1000+ Solved Horticultural Science MCQ Questions Answer
Q. _________ can release lateral buds from apical dominance :
a. Auxins
b. Gibberellins
c. Kinins
d. None of above
Q. Leaf senescence can be retarded by the application of :
a. Auxins
b. Gibberellins
c. Kinins
d. Abscicic acid
Q. Growth retardants are the substances which slow down :
a. Cell division
b. Cell elongation
c. a & b
d. None of the above
Q. Auxin destruction activity is inhibited by :
a. Blue light
b. Red light
c. Green light
d. None of the above
Q. First and the heaviest flower drop in fruit plants occurs due to :
a. Structural defects in the flowers
b. Lack of pollination
c. Non fertilization
d. All of the above
Q. Salient factors which contribute to the fruit drop are:
a. Embryo abortion
b. Seed number of fruit
c. Moisture supply
d. All of the above
Q. Dormancy can be broken by the use of:
a. Thiourea
b. Ethlene chlorohydrin
c. Ethylene acetylene
d. All of the above
Q. Why hardening is practiced in vegetables:
a. To increase the yield
b. To increase fruit colour
c. To increase the resistance of the plant
d. All of the above
Q. At fruit bud differentiation, nitrogen contents are _____________:
a. Low
b. Medium`
c. High
d. Very high
Q. Parthenocarpy refers to :
a. Seedless fruits
b. Fruit without pollination
c. Seeds without pollination
d. None of above