EmberJS : Value assigned by JQuery or JavaScript not reflected in model

I'v working on EmberJS app and facing this very tricky problem:

I've Bind a JSON Object to form , When value entered through Key Board then working fine but if a value assign through JQuery its was successfully enter in input and display but this value not refelect in JSON Object.

JSON Object:

var obj = {
            ctry_id: "",
            ctryl_name: "",
        };

Ember Route:

setupController: function (controller, model) {
        controller.set('model', model);

},

HandelBar View:

jQuery:

$('#ctryl_name').val('text valu');