Horticulture MCQ,s for PPSC Test

12. The best soil Ph for guava is

A.      5.5-8.5

B.      5.5-8.7

C.      4.5-8.5

Ans: C (4.5-8.5)

13. Rough lemon root stock of citrus is used in

A.      Punjab

B.      Sindh

C.      NWFP

Ans: A (Punjab)

14. Peas is

A.      Self pollinated crop

B.      Cross pollinated crop

C.      Self-sterilized crop

Ans: A (self pollinated crop)

15. Cucurbits are

A.      Self pollinated crop

B.      Cross pollinated crop

C.      Self-sterilized crop

Ans: B (Cross pollinated)

16. Crown is used to propagate

A.      Rhubarb

B.      Daisies

C.      Irislily

Ans: A (Rhubarb)

17. According to Pakistan National Commission the post harvest loss is

A.      20-30%

B.      20-40%

C.      20-50%

Ans: B (20-40%)

18. Chilling injury is the disorder of

A.      Banana

B.      Apple

C.      Pear

Ans: A (Banana)

19. Off-flavor in produce is caused due to

A.      Chilling injury

B.      Ripening

C.      Anaerobic respiration

Ans: C (Anaerobic respiration)

20. Climacteric fruit is

A.      Apple

B.      Cucumber

C.      Grape

Ans: A (Apple)

21. The most important volatile compound is

A.      Ethylene (C₂H₄)

B.      Carbon dioxide (CO₂)

C.      Oxygen (O₂)

Ans: A (Ethylene C₂H₄)