methode populate array - index probleme

$result = $this -> _hotelMapper -> fetchAll(array('tours_hotel_code = ?' => $hotelcode));
$form->populate($result);

Array (     [0] => Hotel_Model_Hotels Object         (             [_tours_id:protected] => 9             [_tours_hotel_code:protected] => 22222             [_tours_email:protected] => fdfd             [_tours_telefon:protected] => +2423432             [_tours_fax:protected] => +44234             [_tours_tservice_name:protected] =>              [_tours_tservice_strasse:protected] => strasse 2             [_tours_tservice_plzort:protected] => 13430 berlin             [_tours_tservice_telefon:protected] => +1111111             [_tours_tservice_fax:protected] => +1111             [_freigabe_vorname:protected] => mustermann             [_freigabe_nachname:protected] => mustermann                      )  )

class Form_Form_LeihForm extends Zend_Form
{
    public function __construct($options = null)
    {
       parent::__construct($options);
       $hotel = new Zend_Form_Element_Text('tours_hotel_code');
       $hotel->setLabel('tours_hotel_code')
             ->setRequired(true)
             ->addFilter('StripTags')
             ->addFilter('StringTrim')
             ->addValidator('NotEmpty')
             ->addErrorMessage('ddfdf');
       
       $submit = new Zend_Form_Element_Submit('submit');
       $submit->setLabel('hotel');
        
       $this->addElements(array($hotel, $submit));
    }
}

$form->setDefaults(
    array(
        'tours_hotel_code' => 'Mein Hotel',
    )
);