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Agricultural Science 2018 WAEC Past Questions

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21

A groundnut variety produces a steady yield of 350kg per hectare. What will be the yield of the variety on a 10-hectare farm?

  • A. 35kg
  • B. 350kg
  • C. 3,500kg
  • D. 7,000kg
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22

Thinning is a farm operation in which

  • A. empty spaces where seeds did not germinate are replanted
  • B. the number of seedlings per stand is reduced to one or two
  • C. fertilizers and manures are applied to crops
  • D. effort is made to control pests
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23

Which of the following plants is not a pasture grass?

  • A. Pennisetum purpureum
  • B. Axonopus compressus
  • C. Stylosanthes gracilis
  • D. Panicum maximum
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24

One advantage of cross breeding is that the

  • A. offspring resemble the recessive parent
  • B. yield of the offspring may not be comparable to those of the parents
  • C. offspring performs better than the average of the parents
  • D. offspring cannot survive adverse environmental conditions
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25

Assuming that brown colour is dominant over black colour in cowpea, what percentage of the F1 will have brown colour , if a homozygous brown cowpea is crossed with a homozygous black cowpea?

  • A. 100%
  • B. 75%
  • C. 50%
  • D. 25%
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