Separate and display only particular parent term from a taxonomy vocabulary Is there a module or a way to separate and display only a particular parent term from a taxonomy name in Drupal 7 for the admin, while adding the content.

Consider the home page main menu with vocabulary Name.

The home page main menu has the following taxonomy terms.

Hello
----Red
----Green
----Blue
Test
----Orange
----Black
----Violet


Here in my case I have a content type called Article(for example);

While admin is creating an article, I need to display only the taxonomy term related to Hello. Right now it is displaying all the taxonomy terms related to Hello and Test. Is there a way to separate the parent terms from the same Vocabulary Name.
I think this is, what you searching for: Taxonomy Term Reference Tree Widget.

Here is a quote about it (from the module's project page):


  ... provides an expandable tree widget for the Taxonomy Term Reference field in Drupal 7. This widget is intended to serve as a replacement for Drupal's core Taxonomy Term Reference widget, which is a flat list of radio buttons or checkboxes and not necessarily fit for medium to large taxonomy trees.