September 17 Quiz

1. The variety comparison tool at www.canolaperformancetrials.ca has data on yield, days to maturity, lodging and height for each variety. Which of these is the most important when it comes to deciding which variety to buy?

Days to maturity

Height

Lodging

Yield

2. Based on the data presented in this table, which one of the following statements is true, statistically speaking?

Variety C will yield better than Varieties A and B.

Variety C could yield the same as Variety B but will be better than Variety A.

All three varieties have the same yield potential.

Variety LSD is terrible.

3. Why might it be useful for you to check how a variety performs in other regions and across various years?

You can see which varieties are more consistent across a wide variety of conditions — which is useful because results for the closest site and for one year might not give an accurate impression.

You can see which varieties are wildly inconsistent, achieving home run yields in some years and some locations, but being below average all the rest of the time. This may give you a totally different impression of certain varieties, and this home run chance might be more appealing to you than a consistent performer.

Using data from more sites lowers the LSD and provides more reliable results.

Perhaps what happened in your region this year is not typical, and you don't want to base a decision on local results.

All of the above.

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