diff --git a/app/Models/Plant.php b/app/Models/Plant.php
index 493df50..a28403b 100644
--- a/app/Models/Plant.php
+++ b/app/Models/Plant.php
@@ -112,4 +112,9 @@ class Plant extends Model
     {
         return $this->hasMany(ProcessOrder::class, 'plant_id', 'id');
     }
+
+    public function characteristicValues()
+    {
+        return $this->hasMany(CharacteristicValue::class, 'plant_id', 'id');
+    }
 }