deletions | additions       diff --git a/Adding Traits and Yields.md b/Adding Traits and Yields.md  index 5f4e919..8f81cb1 100644  --- a/Adding Traits and Yields.md  +++ b/Adding Traits and Yields.md 
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required.     ## Adding a Trait \label{sec:traits}  In general, a 'trait' is a phenotype (a characteristic that the plant  exhibits). The traits that we are primarily interested in collecting  data for are listed in [Table 6](#Table 6). Table \ref{tab:traits}.  Before adding trait data, it is necessary to have the citation, treatments, and site information already entered. If the correct citation is not identified at the top of the page [Figure 8](#Figure 8). To add a new Trait,  go to the [new trait](http://www.betydb.org/traits/new)  page: `Trait` → `new`. 
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### dateLOC  The date level of confidence (DateLOC) (DateLOC, Table \ref{tab:dateloc})  provides an indication of how accurately the date associated with the trait or yield observation is known. It provides the values that should be entered in this field. If the event occurred at a level of precision not defined by an integer in this table, then use fractions. For example, we commonly use 5.5 to indicate a one week level of precision. If the exact year is not known, but the time of year is, then use 91 to 97, with the second digit to indicate the information known within the year.   **Figure 9**: [Form used to enter a new trait](https://www.betydb.org/traits/new) 
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made. Without covariate information, the trait data will have limited  value.  A complete list of required covariates can be found in . Table \ref{tab:covariates}.  For all respiration rates and photosynthetic parameters, temperature is recorded  as a covariate. Soil moisture, humidity, and other such variables that  were measured at the time of the measurement may be required in 
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and in this case, the covariate `root_maximum_diameter` would be set to 2.   If the size class is a range, then the `root_minimum_diameter` can also be used.  To add a new covariate, go to the [new covariate](http:www.betydb.org/covariates/new) page page.