Make sure that the Agile Board Scope includes Sub Test Executions

Check the Agile Board Filter and confirm the issue type "Sub Test Execution" is included. 

For more details check the module Setting scope for the Agile Board.

Make sure that the Agile Board Scope includes Test Plan

Check the Agile Board Filter and confirm the issue type "Test Plan" is included. 

For more details check the module Setting scope for the Agile Board.

Add the Test Execution Status

Go to the Project side Bar > Select Backlog or Active Sprint > Board > Configure. 

Click the Card Layout and add the Test Execution Status to the Active Sprint.

Check the result

You can have Get a quick view of all test executions of a requirement, directly from the Jira Agile board, as long as the executions are created as Sub-Test Execution issues.

With this, your team can easily track all the work that needs to be done at the requirement level. 

You may, for example, have different Sub Test Executions to test the requirement in different environments. By displaying the Sub Test Execution at your board, you can see the result for each environment. 

Note that you are limited on the number of fields (3) you're able to include in each card on the board.