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The flower yield of gerbera under greenhouse conditions is:

  • A.200-250 flowers/m/year
  • B.350-400 flowers/m/year
  • C.450-550 flowers/m/year
  • D.600-700 flowers/m/year

Answer: A

The key gives 200-250 flowers per square metre per year. I could not find a source confirming the figure; gerbera yields under a greenhouse are commonly quoted as a few hundred flowers per square metre a year, and the options differ widely, so this is kept on the key.

The ranges 350-400, 450-550 and 600-700 are higher than the key's figure.

Greenhouse yield of gerbera varies with the cultivar and the management, and the values vary widely across the options. The key's figure is the lowest of the four ranges.

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