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American chestnut tree in Centreville is the 'holy grail' for conservationists

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Re: American chestnut tree in Centreville is the 'holy grail' for conservationists

#131
post #48

Earlier quoted context omitted.

Simple, yet effective. I've heard it said modern fruits are relatively tasteless compared to their older counterparts because they are bred for size and hardiness. I wonder if these can be backcrossed as well to produce more flavorful fruits with similar sizes

Interesting. I love nuts of all types, but not the chestnut. It's really more like a small potato than a nut. I wonder if the old ones tasted better.

Fresh they taste almost like sweet corn, I got to try a few American chestnuts last year, they are sweeter (but smaller) than the chinese chestnuts. My landlord boils the chinese one and eats them like mashed potatos, I roast them in oven or air fry them. To me they are like bread from the trees.

The English ones are starchy I guess? These are common to see in grocery stores when in season.

Also handling changes how sweet they get, some say they must be chilled in fridge for some days to get starches to convert to sugar. For me the Americans are perfect no matter the treatment. Chinese chestnuts I'm fighting getting to them fast enough before any mold grows, processing them immediately to kill chestnut weevil (I use a sous vide and let them sit at whatever temp the rutgers publication suggested to kill potential eggs) then I dry and fridge them for a few days before putting them in oven/airfryer. It sounds like a pain in the ass but it's a lot easier and less foul than the year I gathered and processed gingko seeds (which smells like dogshit) or even black walnuts which will stain your hands for over a week if you don't know to wear gloves.

Another protip: Don't plant a chestnut tree near a swimming pool. Those spines are sharp enough to pop a bicycle tire and the catkins smell like a callery pear when it's dumping pollen which is pretty gross.

Re: American chestnut tree in Centreville is the 'holy grail' for conservationists

#132

Earlier quoted context omitted.

To play devil's advocate to myself and possibly answer my own question: I imagine there are ecological effects of GMO (some of your corn SHOULD get killed by insects). Not to mention the fact that GMO seeds are probably mostly sold by god-awful Monsanto.

“No GMO” labeling isn’t because of any of those issues though; it’s just marketing to Green Meme people, upper class Whole Foods shoppers who are big into naturalistic fallacies.

There are two “no GMO” markets: the one you mentioned, and a much smaller market of people who object to GMO for pesticide resistance instead of GMO for disease resistance.

I don’t avoid GMO foods, but I do think our current scheme incentivizes finding the strongest poison and correcting the plant to resist it, without concern for how that poison affects the rest of the environment. I would much rather we engineer the plant to resist the disease directly, but it’s harder to double dip on profits (RoundUp and RoundUp Ready) in that scheme.

Re: American chestnut tree in Centreville is the 'holy grail' for conservationists

#133
post #11

If this tree had a secret to cultivating a resistant strain that would be very awesome. Is there a good app which lets you input your zip code, maybe also sun exposure and soil conditions, how many feet of width and height you have available, and then where it will spit out a list of well-suited tree specimens with some nice pictures of each?

Said app should include forecasting based on climate change.

Re: American chestnut tree in Centreville is the 'holy grail' for conservationists

#134
post #48
post #21

Earlier quoted context omitted.

For anyone wanting to learn more about this breeding technique, it's called backcrossing[1]. It's also used for agricultural crops, but requires many generations. [1] https://en.wikipedia.org/wiki/Backcrossing

Simple, yet effective. I've heard it said modern fruits are relatively tasteless compared to their older counterparts because they are bred for size and hardiness. I wonder if these can be backcrossed as well to produce more flavorful fruits with similar sizes

That's not true

Re: American chestnut tree in Centreville is the 'holy grail' for conservationists

#135
post #48

Earlier quoted context omitted.

Simple, yet effective. I've heard it said modern fruits are relatively tasteless compared to their older counterparts because they are bred for size and hardiness. I wonder if these can be backcrossed as well to produce more flavorful fruits with similar sizes

For an example, the red delicious apple. 75% of the Washington state's apples in the 1980s. It was bred for color and shelf life and, in the process, they bred out the taste. In 2000, a congressional bailout was approved for the growers that had lost $760 million dollars over a 3 year period due to the now-worthless apples.

Most modern apple cultivars have a lot more taste and flavour than red delicious

Re: American chestnut tree in Centreville is the 'holy grail' for conservationists

#136
post #84

The article misstates > There used to be about 4 million American chestnut trees in eastern U.S. forests, until chestnut blight (Cryphonectria parasitica) arrived […] The number is closer to 4 billion with a B[1] Their range was across eastern North America and I’ve read estimates that they may have been a quarter to a third of the trees in those forests before the blight arrived. 1 https://en.m.wikipedia.org/wiki/Am…

Astounding. Crazy to think about It also makes me wonder. There was an estimated 30-60 million buffalo before colonialism in the Americas. However, those numbers were probably only possible to reach because of human activity driving out other apex predators and becoming themselves the apex predator. Similar story with paw-paws. Though they're not necessarily being threatened by anything currently, their range is decr…

This doesn't make sense. Buffalo are not predators of any sort and were not threatened much by other animals.

Re: American chestnut tree in Centreville is the 'holy grail' for conservationists

#137

Earlier quoted context omitted.

Not certain, but that Dunstan is likely a hybrid species of American with Chinese chestnut for blight resistance. The genetically pure American Chestnut tree was nearly eliminated by this blight. So backcrossed hybrids and genetically modified varieties of the American Chestnut are exciting, because there's a hope they could return to their former glory in the ecosystem. This particular tree is a large specimen of ge…

I agree with you and know that the Dunstan is "debatable" to its origin. imho it's American, going by https://acf.org/wp-content/uploads/2016/09/leafcard.pdf . I know I have a chestnut tree. I know it has lots of teeth and no hair. My point is more a point of having periodic postings about Chestnut trees. I think once every 5 years would be enough on the same exact subject. It has been a trend every year. OK so more…

It wouldn't be a pure chinese chestnut it would be a partial hybrid. someone such as yourself would not easily be able to tell

Re: American chestnut tree in Centreville is the 'holy grail' for conservationists

#138
post #104

does anyone know if there are any american chestnuts with natural immunity (via mutations?) with 4 billion trees it would seem that there would be some. There are HIV immune individuals after all.

There is some effort being put towards that but I don't think they have had any success yet.

Re: American chestnut tree in Centreville is the 'holy grail' for conservationists

#139

How can they all die so fast and sudden? Wouldn't we expect a certain % to have some immunity, and then those genes pass on and the population eventually recovers?

I read in the book "American Chestnut, The Life, Death, and Rebirth of a Perfect Tree" by Susan Freinkel that when the blight was first discovered in the early 1900's scientists thought that cutting down chestnut trees in the east would stop the blight from spreading. Many trees were cut down that might have had some level of resistance to the blight.

Or more likely they just didn't have the genetic diversity.

Re: American chestnut tree in Centreville is the 'holy grail' for conservationists

#140
post #11

If this tree had a secret to cultivating a resistant strain that would be very awesome. Is there a good app which lets you input your zip code, maybe also sun exposure and soil conditions, how many feet of width and height you have available, and then where it will spit out a list of well-suited tree specimens with some nice pictures of each?

Said app should include forecasting based on climate change.

Wouldn't change much
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