Flowering Calculator

This program calculates the flowering time, according to the date of sowing, for wheat and other crop varieties.

Read about our selection process for including tools on Climate Kelpie

 

Who this tool is for

Grain (wheat, barley, canola, lupin, chickpea and faba bean) growers in southern Australia.

 

Questions this tool answers

If I sow variety Z on date X:

  • when will my crop flower?
  • what is the risk of my crop being affected by frost?
  • what is the risk of my crop being affected by high temperatures during flowering and grain fill?

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What this tool does

Flowering Calculator gives you information about:

  • flowering time based on your sowing date
  • frost risk
  • the probability of getting the right temperatures required for pod set
  • the probability of high temperature events occurring during pod development

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Inputs

You need to supply local temperature data in a text file.

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Outputs

Flowering Calculator gives you:

  • graphs of the probable flowering window, highlighting likely frost, temperature and flowering events
  • probabilities of temperature events and frost events occurring

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Reliability

Flowering Calculator works for generic early-, mid- and late-season crop varieties but is not up to date with new varieties.

It is mostly set up for Western Australian varieties and growing conditions, but has a limited set of varieties and growing conditions for other states.

It is not reliable in regions where there has been a significant shift in the likelihood of extremes of frost and heat stress occurring.

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History

Flowering Calculator was developed by David Tennant at the Department of Agriculture and Food, Western Australia.

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Support available

Contact Ian Foster, Department of Agriculture and Food, Western Australia.

Email: Ian Foster 

Phone: 08 9441 8109

There is also an extensive help menu available within the program.

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Where to get it

Flowering Calculator is available on CD.

Contact Ian Foster, Department of Agriculture and Food, Western Australia.

Email: Ian Foster 

Phone: 08 9441 8109

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Cost

There is a one-off fee for the CD.

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