Crop Science MCQ
Crop Science MCQ: Multiple Choice Objective Questions
Also read: General Agriculture MCQ: Multiple Choice Questions
Question 01. Which is true about ethylene production in plants?
(a). High oxygen stimulates trees and plants to produce ethylene
(b). Low oxygen stimulates trees and plants to produce ethylene
(c). Low carbon dioxide stimulates trees and plants to produce ethylene
(d). High carbon dioxide stimulates trees and plants to produce ethylene
Question 02. Water which is not available to plants
(a). Hygroscopic Water
(b). Capillary water
(c). Gravitational water
(d). None of the above
Question 03. What is the major function of plant cells?
(a). Photosynthesis
(b). Photorespiration
(c). Plant food storage
(d). All of the above
Question 04. How many chloroplasts a typical plant cell contains?
(a). 50-300
(b). 600-1200
(c). 10-100
(d). 700-1600
Question 05. Who addressed pollan vector for the first time?
(a). Meindert Boon
(b). Liberty Hyde Bailey
(c). Julius von Sachs
(d). Christian Konrad Sprengel
Question 06. Which is a predatory orchid?
(a). Lady’s slipper orchid
(b). Vanda orchid
(c). Dendrobium orchid
(d). Cymbidium orchid
Question 07. Which of the following is African rice?
(a). Oryza parviflora
(b). Oryza glutinosa
(c). Oryza glaberrima
(d). Oryza perennis
Question 08. What is the optimum depth of puddling in rice?
(a). 3 cm
(b). 5 cm
(c). 7 cm
(d). 4.5 cm
Question 09. What are halophytes?
(a). Acid loving plants
(b). Salt loving plants
(c). Both a and b
(d). None of the above
Question 10. Which is rooting hormone?
(a). IBA
(b). NAA
(c). ABA
(d). 2,4-D
Crop Science Quiz
Question 11. Which is a dormancy breaking hormone?
(a). Auxin
(b). Cytokine
(c). Ethylene
(d). None of the above
Question 12. What is the optimum spacing for wheat?
(a). 13.5 cm
(b). 15.5 cm
(c). 22.5 cm
(d). 27.5 cm
Question 13. What is the depth of sowing of soybean seeds?
(a). 1.5 cm
(b). 2.5 cm
(c). 3 cm
(d). 5 cm
Question 14. To which crop is diara cultivation related?
(a). Fiber crops
(b). Cereal crops
(c). Cucurbits
(d). None of the above
Question 15. What is the family of jute?
(a). Tilliaceae
(b). Pedaliaceae
(c). Graminae
(d). None of the above