deletions | additions       diff --git a/Adding Traits and Yields.md b/Adding Traits and Yields.md  index d86cf21..16c0a09 100644  --- a/Adding Traits and Yields.md  +++ b/Adding Traits and Yields.md 
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if MSE is available. Only if there is no other information available should you  record the P-value.  # [Adding a Yield](http://www.betydb.org/yields/new) \label{ref:yields} \label{sec:yields}  The protocol for entering yield data is identical to entering data for a  trait, with a few exceptions: