diff --git a/popcorn/Assets/MyGame/Scenes/CornField/Scripts/CornField.cs b/popcorn/Assets/MyGame/Scenes/CornField/Scripts/CornField.cs
index 883b6e92..535e168c 100644
--- a/popcorn/Assets/MyGame/Scenes/CornField/Scripts/CornField.cs
+++ b/popcorn/Assets/MyGame/Scenes/CornField/Scripts/CornField.cs
@@ -98,10 +98,11 @@ public class CornField : MonoBehaviour
                 {
                     // 収穫
                     VibrationManager.Instance.PlayVibrationOnce();
-                    for (int j = 0; j < GetHarvestCount(lineData.Seedlings[index].level); j++)
+                    var harvestCount = GetHarvestCount(lineData.Seedlings[index].level);
+                    var harvestedCorn = GetHarvestedCornCount(gameData.MachineLevel);
+                    gameData.cornSeed += harvestedCorn * harvestCount;
+                    for (int j = 0; j < harvestCount; j++)
                     {
-                        var harvestedCorn = 20;
-                        harvestedCornCount.Value += harvestedCorn;
                         var harvestAnimation = Instantiate(harvestPrefab, seedling.transform);
                         this.CallWaitForSeconds(.5f, () =>
                         {
@@ -218,4 +219,25 @@ public class CornField : MonoBehaviour
                 throw new ArgumentOutOfRangeException(nameof(rank), rank, null);
         }
     }
+
+    private int GetHarvestedCornCount(int level)
+    {
+        switch (level)
+        {
+            case 1:
+                return 20;
+            case 2:
+                return 25;
+            case 3:
+                return 30;
+            case 4:
+                return 35;
+            case 5:
+                return 40;
+            case 6:
+                return 45;
+            default:
+                throw new ArgumentOutOfRangeException(nameof(level), level, null);
+        }
+    }
 }