Now aggregated temperature must exceed 0 degrees Celcius before ascospore maturation happens

src/main/java/no/bioforsk/vips/model/applescabmodel/AscosporeMaturityTable.java

@@ -38,7 +38,7 @@ public class AscosporeMaturityTable {
     public Double getAscosporeMaturity(Double accumulatedTemperature)
     {
         Double ascosporeMaturity;
-        if ( accumulatedTemperature >= 0 )
+        if ( accumulatedTemperature > 0 )
         {
             if ( accumulatedTemperature < 600 )
             {