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--- tutorials:radiation-model-in-crop_model9 [2025/11/01 12:01] – [Tasks for Exploration] barley1965
+++ tutorials:radiation-model-in-crop_model9 [2025/11/01 15:40] (current) – barley1965
@@ Line 115: / Line 115: @@
 The model now makes fruit formation dependent on the availability of a threshold amount of sugar in the nearest leaf (L. 169-174):
 <code java>
-fl:Flower(t, m), (t >= m && t<m+2) ==>
+fl:Flower(t, m)(* <-minDescendants-Node-minDescendants->lf:Leaf *),(t >= m && t<m+2) ==>
-		{float sugar = first((* Leaf *)[as]);
+		{float sugar = lf[as];
 		println("sugar: " + sugar);
 		}
-		if(sugar>0.0005) ({noFrts++;} Fruit(0.01,1,0.1,noFrts))
+		if(sugar>0) ({noFrts++;} Fruit(0.01,1,0.1,noFrts))
 		else (fl);
 </code>
 Note that a ''Flower'' that has not yet become a ''Fruit'', has two more chances to become one.
-Availability of sugar is calculated by querying ''as'' of the nearest ''Leaf'' before deciding on fruit formation.
+Availability of sugar is calculated by querying ''as'' of the nearest ''Leaf'' before deciding on fruit formation. This query uses two ''minDescendants'' edges, first down to the next lower Node module, then up to the attached Leaf.
 ===== Fruit Growth Competition =====