Seeing all the pictures of seedlings I was inspired to go photograph mine. I have 5 seedlings now of the Blue Picotee X Mini Bar Rose Cross in the greenhouse and have been able to find 5 different colors of twist ties to keep track of each plant when they flower. I can't wait for that to happen!
X
X, Your seedlings looking good. I'm so happy that several growers are going to share
winter m glory blooms with us. Maybe winter won't seem so long.
Jackie
I can't wait to see these progress. Is the cross stable? Is this F2 generation?
This is the F2 generation. According to Arlan, this generation will be a lot of variation. That's why I planted 5 seeds. So far the leaves all look the same as the F1 with no varigation.
I would be thrilled if it turnes out to be stable, which brings me to the question of how many generations do you have to go until you can consider a cross stable?
X
Even in a "stable" variety there is always the possibility of a "throwback".
I`m looking forward to seeing your results!
I thought someone posted a couple of weeks back in this forum that it takes 10 years for a cross to be considered "stable" - but I would guess that might vary between species and hybrids.
I think they said 7 generations.
This message was edited Dec 8, 2006 4:50 PM
I don't know how it goes with mgs, but when I was studying Horticulture at OSU, we were told that it took 7 succesive generations to consider a field crop like beans or tomatoes stable enough to release. That is a field variety, after the original hybrid cross was made. Frank. hope that sheds some light.
In the world of plant breeding, something special happens from time to time. When a primary cross, produces quite uniform progeny, of high quality, it is then refered to as a GREX. The implication of using this word is that it means the cross is quite predictable.
I am completely mystified by the mgs, that will not have two flowers the same! Frank
Fun abd interesting ! To register a new varitiy of African violets it must be grown out stable 3 generations and Mom plant does not count. Good luck with yours !
My view is that a bare minimum of 3 generations after the parent plant...and several more generations would be helpful to insure stability...something like 5 to 7 generations grown out isolated or hand pollinated...
grex as defined by Terry
http://davesgarden.com/terms/go/2144/
grex as defined by the Gardenweb
http://72.14.209.104/search?q=cache:iBoSuQSNqpkJ:forums.gardenweb.com/forums/load/botany/msg111422258164.html%3F2+definition+GREX&hl=en&gl=us&ct=clnk&cd=12&lr=lang_en
GREX as defined by the Taxanomic Database Working Group...4th up from the bottom
http://wiki.tdwg.org/twiki/bin/view/TAG/TaxonRankLsidVoc
Other Botanical nomenclature by the Taxanomic Database Working Group
http://wiki.tdwg.org/twiki/bin/view/TAG/TaxonNameLsidVoc
TTY,...
Ron
This message was edited Dec 9, 2006 10:26 PM
