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#1
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Plant lineage
Is there any official way to document plant lineage?
What I mean to ask is, is there any way to prove that a plant that someone sells to me is what they say it is? Or are you required to take the word of the seller? Obviously some sellers are reputable enough, so you don't have to question their plants. But in the case of an orchid/garden show (or on-line sites and auctions for that metter), where young plants are being sold, how can you be sure you are getting what you pay for? Thanks, Chris |
#2
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On Sat, 04 Dec 2004 18:47:00 GMT, Christopher J Barown
wrote: Is there any official way to document plant lineage? What I mean to ask is, is there any way to prove that a plant that someone sells to me is what they say it is? Or are you required to take the word of the seller? Obviously some sellers are reputable enough, so you don't have to question their plants. But in the case of an orchid/garden show (or on-line sites and auctions for that metter), where young plants are being sold, how can you be sure you are getting what you pay for? Thanks, Chris Know the seller and/or the plant. Pray. SuE http://orchids.legolas.org/gallery/albums.php |
#3
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"Christopher J Barown" wrote in message ... Is there any official way to document plant lineage? What I mean to ask is, is there any way to prove that a plant that someone sells to me is what they say it is? Or are you required to take the word of the seller? Interesting question. In a word, yes and no.... *G* In this case knowledge is power. If you are a beginner you kinda have to take the word of the person selling the plant. If you have a bit of experience and knowledge of species then you know what a species should look like and you can kind sorta tell if the plant *is* that species or contributes to that hybrid. Unless its a very complex hybrid, in which case your guess is as good as anyone's. But unless someone's trying to pass of a small plant that everyone knows is a big plant, then yo kinda have to trust the vendor. There's a case of the Vanda coerulea (a species) that was absolutely the most marvelous flower this species has ever produced, so it was given an FCC award. Some people thought that it simply HAD to be a hybrid because coerulea simply NEVER has the shape this flower had. So the owner had a DNA analysis done on the plant and sure enough the plant was a hybrid, so the award was withdrawn. The owner didn't have to have the analysis done. He was in his rights to tell everyone to shut up. But he is an honorable person and probably wondered about it himself. So he undertook the expense of the test. Voila. Obviously some sellers are reputable enough, so you don't have to question their plants. But in the case of an orchid/garden show (or on-line sites and auctions for that metter), where young plants are being sold, how can you be sure you are getting what you pay for? You really don't and there have been cases where the tags get mixed up at shows, people pull tags and think they put them back on the right plant, but really they didn't. I bought what i thought was a white catt Mount Hood 'Mary' and it turned out to be a deep luscious red, which I think was actually Owen Holmes, becasue it was in the rack right next to the 'Mary's. So now I got an Owen Holmes that is drop dead gorgeous but I can't prove its what it is. No difference to me. Sometimes if uo are lucky a hybrid is so well known that any idiotcan identify it. more commonly there are so many that look exactly the same like green and white paphs for example, that no one can tell them apart. Can't tell the players wthout a score card. Most of the time what the vendor sells is what the plant is, online or otherwise. I can't vouch for online (ebay) sellers or plants that ordinary people trade/sell online for that matter. K Barrett |
#4
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"Christopher J Barown" wrote in message ... Is there any official way to document plant lineage? What I mean to ask is, is there any way to prove that a plant that someone sells to me is what they say it is? Or are you required to take the word of the seller? Interesting question. In a word, yes and no.... *G* In this case knowledge is power. If you are a beginner you kinda have to take the word of the person selling the plant. If you have a bit of experience and knowledge of species then you know what a species should look like and you can kind sorta tell if the plant *is* that species or contributes to that hybrid. Unless its a very complex hybrid, in which case your guess is as good as anyone's. But unless someone's trying to pass of a small plant that everyone knows is a big plant, then yo kinda have to trust the vendor. There's a case of the Vanda coerulea (a species) that was absolutely the most marvelous flower this species has ever produced, so it was given an FCC award. Some people thought that it simply HAD to be a hybrid because coerulea simply NEVER has the shape this flower had. So the owner had a DNA analysis done on the plant and sure enough the plant was a hybrid, so the award was withdrawn. The owner didn't have to have the analysis done. He was in his rights to tell everyone to shut up. But he is an honorable person and probably wondered about it himself. So he undertook the expense of the test. Voila. Obviously some sellers are reputable enough, so you don't have to question their plants. But in the case of an orchid/garden show (or on-line sites and auctions for that metter), where young plants are being sold, how can you be sure you are getting what you pay for? You really don't and there have been cases where the tags get mixed up at shows, people pull tags and think they put them back on the right plant, but really they didn't. I bought what i thought was a white catt Mount Hood 'Mary' and it turned out to be a deep luscious red, which I think was actually Owen Holmes, becasue it was in the rack right next to the 'Mary's. So now I got an Owen Holmes that is drop dead gorgeous but I can't prove its what it is. No difference to me. Sometimes if uo are lucky a hybrid is so well known that any idiotcan identify it. more commonly there are so many that look exactly the same like green and white paphs for example, that no one can tell them apart. Can't tell the players wthout a score card. Most of the time what the vendor sells is what the plant is, online or otherwise. I can't vouch for online (ebay) sellers or plants that ordinary people trade/sell online for that matter. K Barrett |
#5
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Unless it's a species (and even then), the answer is no. Many of the
plants I own have 8+ generations of hybridization in their lineage, i.e. the genetic makeup is from 2^8=256 different plants. Even with genetic analysis, you will not be able to tell what's what. Furthermore (AxB)x(CxD) is genetically equivalent to (AxC)x(BxD) in terms to gene pool, and yet they will have different names....so even if you could ID all the species used to make a hybrid, it's useless without knowing the order of hybridization. Just hope. Cheers, Xi Susan Erickson wrote: On Sat, 04 Dec 2004 18:47:00 GMT, Christopher J Barown wrote: Is there any official way to document plant lineage? What I mean to ask is, is there any way to prove that a plant that someone sells to me is what they say it is? Or are you required to take the word of the seller? Obviously some sellers are reputable enough, so you don't have to question their plants. But in the case of an orchid/garden show (or on-line sites and auctions for that metter), where young plants are being sold, how can you be sure you are getting what you pay for? Thanks, Chris Know the seller and/or the plant. Pray. SuE http://orchids.legolas.org/gallery/albums.php |
#6
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There's no real way to verify parentage in orchids, no. Orchid
growers are still a world better than, say, rose growers in that hybrids have a registry that (if everyone plays nice) allows one to track a plant back to its parent species- in theory. It is also my understanding that in order to be awarded, judges have to know what the parents look like, and note that the progeny is consistent with the putative parentage. Maybe someone can elaborate upon that stray notion of mine. That having been said, there is a large margin for error. For example, some registered crosses from way the heck back when don't have any parents listed for them (!). It has also been speculated that some species were "improved" with other species, but retained the same name. For example, some odontoglossums were "flattened" with the help of another species, but are still reported to be a species, and not a hybrid. There are also issues with accidental pollination; one has to make sure the pollinia of the host plant (the one which will bear the capsule) have been removed so that they are not accidentally deposited upon the stigmatic surface as the flower ages and collapses. Many years ago, an artificial form of this "mixed pollination" was trendy- placing the pollinia of 2 or more plants on the stigmatic surface of the pod parent. No reputable breeder would participate in such nonsense today. I hope. Still, nobody has to prove in a court of law that the plant has had its parentage provided for in a responsible manner. Moreover, there is a financial incentive to provide that plant with a name, as unidentified orchids- no matter how pretty- are worth far less for hybridizing. I know of one grower who passed up his personal holy grail- a green phalaenopsis- because it had no tag. While these issues seem straightforward for divergent parents- say, a pinkish doritaenopsis versus a moth-white phal, very different plants- these issues become quite serious when trying to tell if there has been any incidental "contamination" when dealing with line-bred plants, or physically similar flowers. For example, let's say I'm breeding encyclias. Personally, I can't tell the damned things apart. Anyway- if I were to cross, say, Encyclia oncidioides with Encyclia tampensis, how would I know if the progeny were, in fact, a hybrid, and not a very pink-lipped tampensis, or a bland oncidioides? This becomes a serious consideration with line-bred oncidiums, epidendrums, encyclias, cattleyas, phalaenopsis, and other genera. Not the least concern should be not if the hybridizer, grower, or the person repotting them screwed up, but if the *lab* screwed up. Admittedly, I crank out a lot of plants, but there's been once or twice where I had a flask labeled as one genus, and the contents were very clearly that of another. Very early on in my career, I had one flask of cattleyas with a sport that grew at least 4x faster and 10x heavier than any of its colleagues. Eventually, it developed characteristics of a catasetum while still in the flask. It was about 4" tall, while its cohorts were 1". Catasetums grow like weeds; cattleyas are a bit slower. Going back through my notes, I observed that the week before I sowed the cattleyas, I put down (among other things) a flask of catasetums. It dawned upon me that some seed must have stayed behind in the tubes I used for disinfecting seed the week before. Since then, I have autoclaved the seed disinfection tubes between use, destroying any remaining seeds. That was about 5 years ago, and there hasn't been that sort of problem since. Still, every now and again, I find a transcription error; my notes are meticulous and complete (described by a buddy of mine whom I consulted while building my database as "the most detailed system" he had ever seen), but humans are prone to error even under the best of circumstances. I now have a system that relies upon barcodes and label printers, which largely puts the operator at the mercy of the system. While not without their errors, barcode systems have a substitution error rate of about 1 per million characters scanned. That's at least an order of magnitude better than a human can do. Mistakes happen. Anyone who has ever found a supermarket phal with a plant tag that says "Onc. Sherry Baby" can attest to that. Then there are intrinsic flaws in the system ("improvements" made without recognition, hybrids without parents, that sort of thing), disreputable dealers (which are almost certainly in the minority), and possibly a little intentional misdirection. The email address in the header is not valid. Send no mail there. -AJHicks Chandler, AZ |
#7
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The long and short of it:
You pays your money, you takes your chances. |
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