I just installed Gramps 5.1.5 on Fedora 34, for an entirely different purpose than setting up a family tree of people. I am an absolute beginner regarding Gramps or even genealogy.
I would like to know whether it’s possible to use Gramps for setting up a family tree of fruit varieties, and to represent that tree graphically.
I do volunteer work in a Dutch pomological group of people who try to preserve old fruit varieties.
Recently, we acquired a data set with pedigree information of a few hundred apple varieties that grow in The Netherlands. Different varieties are made by cross-pollination and subsequently planting seeds that emerge from this cross pollination. Once the variety exists, it is further propagated vegetatively by grafting. This way varieties can become very old. The typical lifespan of a large apple tree is around 100 years, varieties can be very much older, some apple varieties from the late Roman Empire still exist today.
This means that once a variety exists, it virtually has an infinite life span. It also means that cross-pollination can be done over many generations. A 600-year old variety can be cross-bred with a variety that came into existence 10 years ago. This younger variety may very well be the great-great-grandchild of the 600-year old one.
The data set that we have contains information of a few hundred variety names, with the names of their parents. The year in which each variety was formed is known, or can be guessed from pomological literature.
Given the possibility of having multiple generations between different children from a single variety, and variety lifespans possibly covering multiple centuries (while hardly any of them die), it is clear that such a family tree can become very complex. Furthermore, apples do not really have sexes. Each flower is both male and female, although in a variety, the mother- and father variety can be distinguished. Because of the bisexuality of apple flowers, a parent can be either father or mother to a child variety.
Last week we had a discussion with the person who did the genetic (pedigree) analysis. He once made a small family tree for a few related varieties, and that already was a huge amount of work. So, we would like to automate this.
With apples having both sexes represented in a single child, and parents having the possibility to be either mother or father, and different offspring spanning multiple generations, would it be possible to construct such a complex family tree for apple varieties using Gramps, with only names of varieties and their parents, and years of “birth”?
If it would be technically possible, is more information on each variety needed, or are the already available data sufficient?
Looking forward to hearing from you,