WorksheetsCropScience_Quiz4
Total questions: 10
Worksheet time: 5mins
Seeds can be separated from fleshy pulp by:
Maceration
Centrifugation
Mechanization
Sedimentation
The following are traits of good seed quality except:
90% germination rate
60% vigour rate
4% moisture content
100% viability
The best possible approach to seed storage is to use:
Paper bags
Cloth bags
Plastic pouches
Aluminium cans
Natural mutagenesis:
Spontaneously occurs
Is induced by chemicals
Is induced by environment
Is rapid
Mutagenesis gives rise to except:
New flower colours
New leaf structures
New resistance to diseases
New somaclonal variants
Limitations to mutagenesis:
High incidence of desirable mutants
Easy to select phenotypes
Lack of control regulations
Dominant traits expressed
Post-harvest losses are due to:
Field climate conditions
Transportation facilities
Mechanical damage
Consumer preference
Following are symptoms of chilling injury except:
Discoloration
Skin piking
Abnormal ripening
Growth cracks
The following can be subjected to post-harvest treatment except:
Bananas
Corns
Apples
Citrus
Waxing does the following except:
Prevent moisture loss
Gives good taste
Enhance appearance
Repels water
