Agriculture Exams (Agri Cropsci) – Page 1

#1. The Philippines is an agricultural country with a land area of 30M hectares. The total area devoted to agriculture is:
A 35% (10.5M)
B 40% (12M)
C 50% (15M)
D 47% (14.1M)
Answer: 47% (14.1M)
#2. Sen. Edgardo J. Angara is the author of AFMA of 1998, it became into law as:
A RA # 8435
B RA # 8035
C RA # 6434
D RA # 8535
Answer: RA # 8435
#3. Plants having a special property that can act as host to N2 fixing bacteria:
A cucurbits
B legumes
C crucifers
D solanaceous
Answer: legumes
#4. Most of our economically important crops are:
A xerophytes
B hydrophytes
C mesophytes
D heliophytes
Answer: mesophytes
#5. Scientific names of plants are composed of:
A family & specie
B order & phylum
C family & order
D genus & species
Answer: genus & species
#6. Growing of two crops in succession, planting one before the harvest of the former:
A relay cropping
B ratoon cropping
C strip cropping
D intercropping
Answer: relay cropping
#7. A measure of seed viability: number of seeds that have germinated divided by the number of seeds sown, multiplied by 100:
A rate of germination
B coefficient rate
C germination score
D germination percentage
Answer: germination percentage
#8. Round-up ready corn variety is an example of:
A GMO crop
B genetically modified organism
C transgenic crop
D all of the above
Answer: all of the above
#9. The following describes the word “pest”, except:
A noxious weeds
B entomophagous insects
C phytopathogenic microorganism
D phytophagous insects
Answer: entomophagous insects
#10. Which is not a solution to waterlogged condition?
A providing crops with trellis
B construction of drainage canals
C planting crops well adapted to saturated condition
D planting crops in raised beds
Answer: providing crops with trellis
#11. A method of harvesting in which only matured fruits or pods are harvested is called:
A tapping
B priming
C thinning
D pruning
Answer: priming
#12. Plant roll their leaves as in the case of corn:
A increase leaf water content
B change the angle of incidence of diffused light to the leaf surface
C reduce rate of transpirational water loss
D increase probability of desiccation
Answer: reduce rate of transpirational water loss
#13. Rice armyworm is scientifically known as:
A Scirpophaga innotata
B Scirpophaga incertulas
C Spodoptera litura
D Mythimna separata
Answer: Mythimna separata
#14. Nuclear Polyhedrosis Virus (NPV) is an entomopathogen specific against:
A hymenopterans
B homopterans
C lepidopterans
D hemipterans
Answer: lepidopterans
#15. The products of the light reaction phase of photosynthesis are:
A ATP and NADPH
B ATP and NADH
C CH2O and NADPH
D O2 + ATP
Answer: ATP and NADPH
#16. The Krebs cycle takes place in the:
A peroxisome
B vacuole
C mitochondrion
D chlorophyll
Answer: mitochondrion
#17. Phototropism is a growth response of plant to unidirectional light which is probably influenced by a particular growth hormone:
A kinetin
B gibberellins
C indole acetic acid
D abscissic acid
Answer: indole acetic acid
#18. The tags used for breeder seeds are colored:
A blue
B yellow
C green
D white
Answer: white
#19. The practice used in rubber trees in order to remove more latex:
A pruning
B propping
C tapping
D retting
Answer: tapping
#20. An entomopathogen used against RBB and GLH, known as white muscardine fungus:
A Pyricularia grisea
B Beauveria bassiana
C Metarrhizium anisopliae
D Trichoderma harzianum
Answer: Beauveria bassiana