1. World Soil Day is celebrated on :
A) 5 November
B) 5 December
C) 10 December
D) 10 September
2. The term ‘Crotch angle’ is related to :
A) Budding
B) Grafting
C) Training
D) Pruning
3. The tissue involved in vegetative propagation is :
A) Cambium
B) Phloem
C) Xylem
D) Pith
4. Ecodormancy is the dormancy imposed by tissues and organs which occurs mainly due to :
A) Water stress
B) Chilling
C) Seed coat
D) Photoperiod
5. Activity of ethylene in fruit ripening is maintained by :
A) Mo
B) Cu
C) Fe
D) Ca
6. Cold treatment given to plant buds, seeds or seedlings for promoting early flowering is known as :
A) Cold sterilization
B) Vernalization
C) Scarification
D) Transpiration
7. Black heart injury is due to :
A) Low temperature
B) High temperature
C) Water stress
D) Water logging
8. Recalcitrant seeds are :
A) Tolerant to moisture stress
B) Tolerant to diseases
C) Tolerant to insect attacks
D) The seeds having less storage life
9. Commonly used bread wheat, Triticum aestivum, is a :
A) Tetraploid
B) Triploid
C) Hexaploid
D) Diploid
10. Actual site of protein synthesis in a plant cell is :
A) Mitochondria
B) Lysosomes
C) Golgi bodies
D) Ribosomes
11. India’s first triple disease resistant tomato F₁ hybrid is :
A) Arka Rakshak
B) Pusa Ruby
C) Arka Samrat
D) Pusa Divya
12. Bordeaux mixture was first discovered in :
A) USA
B) France
C) UK
D) Australia
13. Biogenetic law was proposed by :
A) Ernst Haeckel
B) A. G. Tansley
C) Charles Darwin
D) N. Vavilov
14. Cole crops have originated from a common parent known as :
A) Brassica oleracea var. capitata
B) Brassica oleracea var. sylvestris
C) Brassica oleracea var. acephala
D) Brassica oleracea var. italica
15. The portion of plant considered as free from viruses is :
A) Embryo
B) Xylem
C) Cambium
D) Meristem
16. Which one of the following is related to asexual reproduction ?
A) Apomixis
B) Amphimixis
C) Allogamy
D) Autogamy
17. “Feed the soil not the plant” is the watch word of :
A) Eco-farming
B) Sustainable agriculture
C) Organic farming
D) Conservation agriculture
18. Water hyacinth vegetatively multiplies through :
A) Suckers
B) Stolon
C) Runners
D) Offsets
19. How many number of gametes are formed in Aa Bb Cc Dd Ee ?
A) 10
B) 32
C) 20
D) 16
20. Apical dominance in plants is related to :
A) Morphactins
B) Gibberellins
C) Auxins
D) Cytokinins
21. The type of grafting used to repair stem is :
A) Bridge grafting
B) Approach grafting
C) Bench grafting
D) Bark grafting
22. First bio-insecticide developed on commercial scale was :
A) Quinine
B) Organophosphate
C) DDT
D) Sporeine
23. Which one of the following is generally used for correcting alkali soils ?
A) Gypsum
B) Lime
C) Iron pyrites
D) Urea
24. The design preferred to conduct an experiment on a long strip of land is :
A) LSD
B) CRD
C) Split Plot Design
D) None of the above
25. Quarantine sensor is generally used to measure :
A) Radiation
B) Pressure
C) Soil moisture
D) Photosynthetically Active Radiation
26. Which one of the following plays an important role in opening and closing of stomata ?
A) N
B) P
C) K
D) Ca
27. The development of embryos from vegetative cells rather than from the union of male and female gametes to produce a zygote is known as :
A) Embryogenesis
B) Organogenesis
C) Somatic embryogenesis
D) Parthenogenesis
28. The metal element present in the structure of chlorophyll is :
A) Mg
B) Fe
C) Zn
D) Mn
29. DAP is a type of :
A) Bio-fertilizer
B) Complete fertilizer
C) Complex fertilizer
D) None of the above
30. Specialized proteins with catalytic activities present in all living organisms are :
A) Enzymes
B) Collagen
C) Keratin
D) Elastin
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