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Post by marches on Nov 8, 2014 4:07:38 GMT -8
www.theguardian.com/science/2014/oct/18/humble-potato-poised-to-launch-food-revolutionApparently some salt resistant varieties have been developed on the North Sea island of Texel in the Netherlands. It sounds promising, they're using diluted seawater to grow them. Whilst some of the commenters on the story seem to miss the point (that in non-testing, agricultural conditions you wouldn't actually use salthingyer), they could be planted in difficult areas with quite saline soils. What isn't reported though is just how salt resistant they are, what the varieties are and if one can get seeds from them. But apparently they're not seeking royalties on them which is a good thing. Read that the potatoes don't become filled with sodium, but instead most of the salt is held in the plant and foliage but the tubers actually become sweeter. Very interesting stuff.
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Post by sweetquietplace on Nov 8, 2014 5:38:11 GMT -8
Very interesting. I know that Lambs Quarters grown along the shoreline are much more tasty than ones grown inland.
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Post by nathanp on Nov 8, 2014 10:23:50 GMT -8
I believe Israel has been breeding potatoes for salt tolerance as well. I recall reading an article on that a year or two ago.
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Post by thefuture on Nov 8, 2014 17:59:17 GMT -8
Good find. I am grown many things on diluted ocean water. Read Maynard Murray's books and see how powerful ocean water is. It even has nitrogen fixing bacteria, never mind 93 elements. Quiet as it is kept, it is the premier source of plant nutrition.
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Post by Tom Wagner on Nov 9, 2014 7:12:40 GMT -8
WHAT VARIETY?
ANYONE?
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Post by marches on Nov 10, 2014 4:39:34 GMT -8
My thoughts exactly. I found their site, I may contact them and ask and put them in touch with this site.
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Post by rickmachado on Nov 19, 2014 17:34:42 GMT -8
I sent them an email after hearing about this on NPR. No answer.
I am going to duplicate this project on a small piece of my farm. They used a 40% seawater dilution, my irrigation vendors are trying to come up with a way I can do it without backflow.
I will just use my own varieties for now. Shame they are not letting anyone else in on what they know.
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Post by marches on Nov 20, 2014 9:08:25 GMT -8
I sent them an email after hearing about this on NPR. No answer. I am going to duplicate this project on a small piece of my farm. They used a 40% seawater dilution, my irrigation vendors are trying to come up with a way I can do it without backflow. I will just use my own varieties for now. Shame they are not letting anyone else in on what they know. Yeah, that really bugs me. Some breeders don't want others to duplicate their success and 'steal their thunder' it seems. I'm always open about what I use in breeding and even suggest to people what crosses I'd do. |
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Post by DarJones on Nov 20, 2014 20:02:32 GMT -8
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Post by Tom Wagner on Nov 20, 2014 23:12:57 GMT -8
Acutually that study was published in 1998 with this link... hos.ufl.edu/sites/default/files/faculty/gdliu/Khrais,%20T.,%20Leclerc,%20Y.,%20and%20Donnelly,%20D.J.%20--%201998_0.pdf Spunta was half way down the list of about 130 clones...USDA 96-56 is a parent of it but Kennebec, also a USDA 96-56 cross is deemed salt intolerant whereas Onaway, also a USDA 96-56 cross is tolerant. I suppose USDA 96-56 throws about a 1:2:1 ration of tolerant-semi-tolerant-susceptible. Spunta is darn near a Kennebec look alike. I have lots of personally bred USDA 96-56 TPS and F-2's. I have grown all of the ones listed to be salt tolerant: Amisk, BelRus, Bintje, Onaway, Sierra, and Tobique and many of their parents and hundreds of berry producing clones that have multiple combinations of all of them and even some that have doubled up on the pedigree. I suspect that if I submitted some of my TPS derived clones that I could find winners too! Interesting of the 130 clones that are deemed very susceptible...wow...many are in my breeding lines also. BTW....the Sierra variety is the 79 V 46-14 clone from Europe and not the California clone. Pack Rat that I am in collecting and breeding most all of the 130 clones used in the study means I have a valuable germplasm base? |
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Post by DarJones on Nov 21, 2014 19:00:34 GMT -8
The studies are pretty consistent that very high salt tolerance is a relatively low incidence trait present in about 1 in 30 varieties. This would indicate that growing 300 varieties should identify about 10 with decent tolerance and perhaps 2 or 3 with very good tolerance combined with very good production. I suspect this will be a highly heritable trait so crossing two salt tolerant lines should yield a very high percentage of offspring that are also salt tolerant.
It would be interesting to cross Bintje with a line like Chellan.
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Post by Tom Wagner on Nov 22, 2014 0:08:02 GMT -8
I have my hands full with seeding over 154 families of TPS this past week. However, Chellan was one of them. Reminds me to include Bintje x Maris Piper again in my next sowing. I won't waste my time and space with a salt test but will continue to bring new clones into being for eventual TPS extraction for the future. Having a bench in a UW greenhouse in nearby Seattle for all winter and spring is a bonus for my experimentation. I am sure many of my new family crosses piggyback the potential salt tolerance on account of using multiple breeding lines showing some relationship to varieties used in the published article. I will be potting up lots of diploid tuber families to take advantage of the short days of winter to more closely match the equatorial ancestry. I ought to Google salt tolerant diploid potatoes to see if I am sitting on a gold mine or not.
Rick, I may have a build up of tubers eventually so that I can share some with you soon.
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Post by rickmachado on Nov 27, 2014 9:31:20 GMT -8
Thanks Tom. I think I have Spunta somewhere. I'll check.
When you get a chance Tom, could you please post a photo of Redder Blood? I harvested some earlier, actually for the first time a moderate amount, and they were not red at all, but light purplish. Is that correct?
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Post by another guest on Dec 3, 2014 2:14:48 GMT -8
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Post by Tom Wagner on Dec 3, 2014 22:08:21 GMT -8
Some studies suggest tolerance and salt sensitivity of some potato varieties are due to the genotype variation and possibly not related to epigenetic adaptation under salt stress condition. However there are many studies that differ with that interpretation. The more one reads about epigenesis,the more you have to read again,what with these terms
I remember my college years picking up the rationale for the "remarkable" Lamarckian concepts only to have my botany professors debunk it. Lysenkoism was a popular idea to debunk back then. I am surprised to read how controversial epigenetics has become.
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