See 707 for seed color. 705 - Seedling mutations. 706 - Vine and Flower traits. Watch for these in your plants. By working cooperatively, it seems likely we could work out some of the genetics of Atlantic Giant pumpkin and squash genetics.
Simple traits involve one genetic locus.
The yellow seedlings die because of some defect in the photosynthesis machinery. Getting Started Big pumpkin contestants see many things during the season and no two plants and fruits are identical. There is a modest probability that you have seen or will see evidence of a mutant for which the genetics is unreported. Since contestants look at their plants so carefully they are likely to see things ordinary people would not recognize. Write down a simple description of the unusual trait.