Themes using the Genesis Framework observes the excerpt and read more features of WordPress, but give you additional options to control the display of your content on archive pages:
1.Truncate post content
2. Display excerpts
Truncate post content
Go to your WordPress Admin → Genesis → Theme Settings. Scroll down to the Content Archives box below. Specify a number of characters before your post content should be truncated. You can also choose to include the Featured Image if you like. Click the Save Settings button to proceed.
Your posts will now be automatically truncated like this:
Alternatively you can change the drop down option to Display post excerpts to only display the post excerpts. Click the Save Settings button to proceed.
With this option, posts that have manual excerpts will display the excerpt. Posts without manual excerpts will display an automatic excerpt, which is generated from the first 55 words from the post.
Note: If you don’t see the Excerpt options box, make sure that it is enabled in your Screen Options.
Here is the result if you choose to display post excerpts: