Top 1000+ Solved Horticultural Science MCQ Questions Answer
Q. Silver thiosulphate extend vase life of cut flowers by;
a. Anti-bacterial properties
b. Anti-oxidant properties
c. Anti-ethylene properties
d. Anti-auxins properties
Q. Internal browning in fresh produce is the result of ;
a. Depletion of carbohydrates
b. Action of polyphenoloxidase (PPO)
c. Loss of moisture
d. Loss of chlorophyll
Q. In onions the maturity is determined by;
a. Bulb size
b. Bulb colour
c. Leaves colour
d. Tops drooping
Q. The stage at which rose flowers should be cut;
a. When petals are fully open
b. At tight-bud stage
c. When petals starts folding
d. When the petals show full colour
Q. The postharvest quality in carnation flowers is observed better when they are cut at;
a. Bud stage
b. Fully open stage
c. Half bud and half open stage
d. All of the above
Q. The common fumigant applied to fruit crops after harvest, for controlling postharvestdiseases;
a. Ca(OH)2
b. So2
c. CaO
d. Co2
Q. The best method of harvesting citrus fruits is;
a. Pulling
b. Clipping
c. Twisting
d. Twist-picking
Q. The most effective fungicide for controlling citrus fruit diseases caused by Penicilliumspp. is;
a. Sodium orthophenylphosphate (SOPP)
b. Carbendazim
c. Thiabendazole (TBZ)
d. Topsin-M
Q. Active ingredients in plants are defined as:
a. Correcting bodily functions
b. A restorative of body ailments
c. Preventing or curing diseases
d. Constituents having a medicinal action
Q. According to international standards medicinal plants are those plants which haveactive ingredients in the range of:
a. 10%
b. 20%
c. 40-60%
d. none of above
Q. The botanical name of Ispaghol is
a. Termanilia arjuna
b. Strychnus nuxvomica
c. Ocimum bacilum
d. Plantago ovata
Q. The most potential medicinal plant according to HOLY PROPHET (SAW) is
a. Babool
b. Zaitoon
c. Angeer
d. Kalongi
Q. Best yield of rose oil from rose petals is obtained by
a. Steam distillation
b. Vacuum distillation
c. Enflurage
d. Carbon dioxide extraction