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Showing posts with label genetic diversity. Show all posts
Showing posts with label genetic diversity. Show all posts

Thursday, February 25, 2021

Saving The American Chestnut Tree

 

As a boy growing up in Appalachia, I heard many stories about the blight which killed nearly all the American Chestnut trees, literally wiping them out over most of the United States.  Chestnut lumber was highly valued and, during my childhood, was commonly found in houses, barns, and outbuildings all over Eastern Kentucky where I grew up.  Now nearly all that chestnut lumber has disappeared due to either rot, fires, and floods or the destruction of older buildings because their owners did not like the looks or they did not know the value of the lumber. What little can be found is still highly valued all across the Appalachian region for use in interior decorating settings in homes, businesses, and offices.  

Luckily, there is a non-profit organization dedicated to the preservation, propagation, and proliferation of the American Chestnut tree.  That organization is called The American Chestnut Foundation and can be found at this link.  The organization cites ten reasons for saving the American Chestnut: 

  1.  it will restore America's forests and improve biodiversity; 
  2. it will restore what is sometimes referred to as the "cradle to grave tree"   for its variety of uses, it was an important food source and cash crop for the people of Appalachia and was also commonly known as a food source for free ranging livestock, especially hogs, in the days before livestock laws became common and required all livestock to be kept in fenced areas. 
  3.  it is also an excellent wildlife food source for everything ranging from large birds to deer, wild hogs, and bear.
  4. Its fast growth and tolerance of rocky, acidic, and poor soils, makes it perfect for returning degraded landscapes to fruitful condition, including those left by strip mining, to diverse and healthy forests
  5. restoring the American Chestnut will provide a better understanding of saving other such endangered trees and protecting all of America's forests.
  6. the American Chestnut produces excellent, durable, decorative lumber of a very high quality.
  7. the fruit of the American Chestnut has a better, sweeter flavor than the Chinese Chestnut or other varities and is more useful in cooking.
  8. the American Chestnut makes an excellent tree for shade and landscaping purposes.
  9. the wood is also an excellent product for use in high quality production of furniture and decorative objects.
  10. restoring the American Chestnut will achieve final success against one of the worst ecological disasters on the American continent.      

 

Numerous media outlets have addressed the issue of saving the American Chestnut ranging from the Cincinnati Magazine to the New York Times to Mother Earth News.     In April 2020, the New York Times Magazine published and article about the possibility of using genetic engineering to save the American Chestnut as did  Colleen J. Muvihill, a microbiologist at the University of Texas at Austin.   But there have been only a very small number of living, resistant American Chestnut trees found in America and the genetic engineering necessary to propagate them and save blight resistant progeny has several inherent problems which numerous scientists are working to solve.  Whatever is done over the next decades to save this American giant, should be performed with both haste and caution.  That is to say that we must work to save the tree while we still have a few healthy living specimens with which to work and yet scientists must not rush headlong into the project without due regard for potential red flags which arise along the way regarding the possibility of breeding flaws into the final products which could range from susceptibility to other diseases, sterility, and even some that we cannot foresee at this  time.  But the possibility of achieving a day when the American Chestnut tree is once again abundant nation wide is well worth the effort and expense.  

Syracuse University is working on a project involving genetic engineering to save the tree.  Because their trees are genetically modified organisms (GMO's) the university is required to guarantee that they do not release pollen into the wild and must bag every flower on every tree, build deer proof fences, and install aluminum mesh to prevent squirrels from carrying pollen away to other sites.  There is a very realistic hope that they will soon be able to propagate their variety of American Chestnut in wild forests with government approval.  Let's all hope for that day to come.  I eagerly look forward to smelling a roasting American Chestnut on a hearth at Christmas time.  I hope you do too.  

Since I posted this blog yesterday on several Facebook groups, a large number of people who obviously have Chinese Chestnut trees on their property have been commenting about how certain they are that theirs are American Chestnut trees.  So I am posting links here to a couple of web sites which have very good descriptions of the differences between the American Chestnut tree and the Chinese Chestnut.  Before you go off the deep end believing you have an American Chestnut treee check both the websites and your tree so you know the difference.  

This is the link to the American Chestnut Foundation website's page with photos and clear cut descriptions of the differences between the two trees.  

This is the link to the Virginia Tech University website's page with equally accurate descriptions and photos of the differences between the two trees. 


                                                                                          

Tuesday, January 28, 2020

Mail Order Seed Catalogs--A Sure Sign Spring Is Coming!

Today, January 28, 2020, I received my first mail order seed catalog in my mail box.  Yesterday, while walking at the Lexington Kentucky Arboretum, I saw several robins.  Spring cannot be far off.  For most of my life since I was a child, I have known that the arrival of mail order seed catalogs was a sure sign of impending spring.  Yes, I know that the commercial seed companies do mail those catalogs in the dead of winter.  But, in addition to bringing photographs of perfect produce, these catalogs also bring hope to the hopelessly home bound.  When your first seed catalog arrives in the mail, you know that the earth has continued on its rotation around the sun, that the days are probably already getting a minute longer a day at least, and that the normal rotation of four seasons will likely once again be honored in the universe. 
 
 
 
For most of my life, the Stark Brothers catalog has been my favorite.  But I also enjoy all the others, especially Burpee, .  Any of them can get my blood circulating faster; get me to believing that I should once again raise a garden even though I haven't done it in years; get me to lusting after the taste of a fresh, warm, sun ripened, homegrown tomato eaten with a salt shaker in the garden beside the plant on which it grew and less than one minute after it was plucked from the vine.  Nearly all of these spring catalogs will contain photographs of several varieties of fruits and vegetables which I have never grown but always wish I had such as salsify, kohlrabi, rutabaga, Jerusalem artichoke, figs, lingonberry, currant, or marionberry.  



But now that I have read Bill Best's excellent book "Kentucky Heirloom Seeds Growing, Eating, Saving", I know that I, and all of my readers, should exercise caution in making any decision about which seed company to order seeds from, which varieties to plant, and which to actually eat.  Nearly all the major commercial seed companies are primarily marketing varieties of fruits and vegetables which have been genetically altered to produce fruits and vegetables with a variety of characteristics which were not selected with your best interests as a goal.  They are not selected for long shelf life so they can be shipped from a plethora of Third World countries and retain their marketability over a long period.  Most of them are hard, thick skinned, flavorless but beautiful specimens which will attract your attention from a mile off, hold their shape and appearance for days, and taste like cardboard or Styrofoam.  Whenever it is remotely possible, we should all be producing, purchasing, and consuming fruits and vegetables of proven heritage varieties which have protected and preserved over hundreds of years, passed from one grower to another, from parent to child.  They should have been dealt with in a manner which preserved their genetic purity and produced several generations with the very same desirable characteristics.  I do not presume to be an expert of heritage seeds but I learned enough to know that heritage garden plants, fruit trees, and berry vines are best for the entire human race and the planet as whole.  
 
 
 
Yes, it is fun to open that first commercial seed catalog of spring and lust after fresh tomatoes, potatoes, corn, beans, and watermelons.  But out desires should be channeled toward the same varieties our ancestors carried across the oceans from the land of our personal heritage, varieties which have been handed down to beloved children and grandchildren from ancestors who carried those seeds on a pilgrimage to a better home with a vibrant, nutritious garden just behind the house.  Enjoy spring whenever it comes and take some personal action to protect, preserve, and propagate heritage fruits and vegetables.