One more comment. Some years ago, about 1990, more or less, some one started what came to be called the Paul Bunyan Breeding Program. For those not up to date of Amercian mythology, Paul Bunyan was a lumberjack who could cut 40 acres of timber with one swing of his ax. So some barley breeders used a male sterile gene closely linked to a gene for shriveled, but viable, seeds. These male sterlie plants were used to cross with the ENTIRE GRIN barley collection. In the F2, the male steriles were crossed again to the entire GRIN collecton. After all, the first F2 generation had a lot of genetic diversity, but it was still half identical on their mother's side. Now it was only 1/4 identical. Another cross or two was done and then the seed was multiplied, then it was distributed to any barley breeder in the world to treat as a landrace. Some is still in storage I'm sure, and available. I had a kilo or so once. I sorted out the hulless seeds and grew them as seperate populations, hulled and unhulled. I don't have them any more, but I sometimes think of trying to get another start.
... we propose a more inclusive definition of landraces, namely that they consist of cultivated varieties that have evolved and may continue evolving, using conventional or modern breeding techniques, in traditional or new agricultural environments within a defined ecogeographical area and under the influence of the local human culture. This includes adaptation of landraces to new management systems and the unconscious or conscious selection made by farmers or breeders using available technology.
keen101 (Biolumo / Andrew B.): Looking for Goldini Zucchini again. Thinking of setting up my own seed shop for OSSI varieties in the future.
Apr 2, 2022 3:58:57 GMT -5
gratefulseedsaver: I have Goldini seeds. email@example.com
Oct 8, 2022 18:46:12 GMT -5
wilscase: Hello all. My name is Casey Wilson. I'
Oct 18, 2022 21:31:32 GMT -5
wilscase: I'm a graduate student at Oregon State and have been working with populations segrgating for different color genes such as the B gene in Cucurbita. I'm curious if anyone has experience with crosses in Cucurbita maxima between grey blue types and orange?
Oct 18, 2022 21:33:14 GMT -5
wilscase: I have been backcrossing to the grey parent for 4 generations and have finally selfed the heterozygotes (for the Bmax gene) the populations have segregated for diffuse bicolor (pink/blue, orange green), blue green, blue, green, pink (salmon) and orange
Oct 18, 2022 21:36:29 GMT -5
wilscase: The genes involved are Bmax and bl. I have observed that Bmax is incompletely dominant to wild type (green). I have read that bl is incompletely recessive to Bl(wild type). I'm curious if anyone else has observed the behavior of Bmax in a grey/blue type
Oct 18, 2022 21:38:28 GMT -5
wilscase: It appears that bl and Bmax are interacting to produce different shades of salmon and pink.
Oct 18, 2022 21:38:52 GMT -5
wilscase: I'm also interested in any other color genetics, especially the relationships between B and L genes. In the right background these genes can dramatically increase Carotenoids (vitamin A)
Oct 18, 2022 21:40:09 GMT -5
wilscase: I have lots of germplasm and would love to exchange anything that people are interested in
Oct 18, 2022 21:41:56 GMT -5