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Showing posts with label hybrids. Show all posts
Showing posts with label hybrids. Show all posts

22 June 2011

The Forsaken Garden: The Food Humanity Forgot, Part 2

Corn is one of the most hybridized plants in our world today, but most of the hybrids developed in the past 50 years has nothing I want in my garden.  This ancient race of corn, at present not precisely identified, from the Native Seed/SEARCH collection does have traits I want: It is a dent corn, meaning it has the keeping qualities of a flint combined with the finer grain of a flour corn.  The blue tint holds higher nutrition. One of my projects now is to develop a blue (higher nutrition), dent corn (longer shelf life and finer grain - dents also tend to be among the more productive corn races). I have two corn breeding projects on the books right now.

Even by the time the professionals were breeding plants – before the genetic modification started – the intent was no longer to breed plants for any kind of long term strategy. Just like modern Wall Street, the idea became to get in, make a buck and not be around when the thing imploded. Home gardeners and food consumers became the victims of this make-a-buck strategy. Mind you, the mantra of the promoters of this type of agricultural advancement was: Cheap food – at any price. And no other country bought it up the same way Americans did. And still do. What's the best food store has almost always been the cheapest – a mold that is being broken by Whole Foods Market and that's about the only bone I'll throw them.

It's an odd thing that among 1st World Countries, Americans are the most likely to think food has to be cheap. And, in that guise, we went along for it. Cheap and easy was our national anthem from way before the American Revolution. But the trade offs were huge! Nutrition and taste were not important and were not considered as a 'desirable' outcome of the research.

During this time, the old kind of plant breeding comprised an ever shrinking portion of the plant breeding. And while modern science was breeding in disease resistance to tomatoes and other vegetables, the open pollinated plants were left alone. “Breeding resistance” into plants is another way to describe “breeding more virulent diseases” because, as the plants become resistant, diseases co-evolve to take on the new, improved plants. The net effect of this is that our cherished heirlooms have been compromised by a lack of disease resistance to diseases that weren't around when our treasured plants were being bred.

Now is the time to move beyond 'saving heirlooms.' That is old hat. We have saved a lot of them. Now, we must begin to move beyond just 'saving' them. We must begin to adapt them to our world. We need to confer disease resistance on these tasty and rich jewels of cuisine if we are going to be able to keep them and if they will be the basis of an agriculture that keeps us from starving when the chemicated, profit driven agriculture turns on us by failing to deliver – which it will do sooner or later.

So the challenge before us is to do the work of breeding disease resistance from the hybrids (not the GMOs – which is a different critter altogether and among our people is considered a contamination. There are many hybrids out there from which we can cull disease resistance or other qualities we find desirable in our food. In other words, the word 'hybrid' cannot be a bad or nasty word – we have come to a place where the word 'hybrid' has been far too demonized. It is true that the recent history of hybrids is tied in with the mad rush for profit, but the word itself simply means the 'product of a cross.' Hence most of our rich diverse, collection of open-pollinated plants are all hybrids; the difference that needs to be noted is that the open-pollinated plants are stable crosses – whereas the hybrids of the dollar are unstable crosses – in other words, they have not been grown out for successive generations to insure the good qualities are there to stay.

This work has begun already.  Organic Seed Alliance in Oregon and Practical Farmers of Iowa both have breeding programs, although both are focused on farming crops. 

Many organizations have been saving all this marvelous germplasm that is the basis for this work.  We need to get busy - not only in continuing to save the germplasm, but also to breed resistance to the delicious tasting food our ancestors left for us. We need to be true to this treasure and the way best to do that is to not only save it as it is, but to breed it to compete in this modern world and produce fruit reliably and honestly for our children and their children.

david 

21 June 2011

The Forsaken Garden: The Food Humanity Forgot, Part 1

For all of the history of agricultural civilization, the farmers and gardeners saved their seeds to have something to plant next year.  As soon as humankind began to depend on crops grown in tended fields, saving seeds was as much a part of the process as was planting seeds the following growing season. 

This is the way it was, each generation of humans selecting the seeds that would be the food of the following year.  In this manner, humans were 'breeding' their crops for characteristics they found desirable.  Larger grains, resistance to falling apart in the field before they could be harvested and so on.  It was not called 'breeding' but it was breeding.  Every choice to save one seed over the others in the basket or on the plant was a decision that carried some genetic information forward and left others to be eaten. 

We know this is true because ethnobotanists can look into the detritus of past civilizations and tell within a few years of when a crop becomes domesticated.  The change from a wild seed crop to a domesticated seed crop is dramatic and fairly rapid.  Seed heads become more uniform, the seeds are larger, they don't fall apart easily in the field and other characteristics clearly delineate the departure from 'natural selection' to human selection.

It continues this way over all history.  Up until about the 1950's.  In the late 1800's seed companies sprang up to help people experience other seeds, lending a diversification that gardens hadn't been able to have unless the owner traveled a bit or had connections in other parts of the land.  The average gardener didn't have access to anything that wasn't local.  But seed companies made a lot of seed available to these gardeners and expanded the ability of regions to grow seed adapted to their areas from other similar climates that may not be nearby.  

Still, barring a disaster, once a gardener purchased the seed, the gardener would save seeds for future plantings until some other seed tantalizingly calls to be planted (we all know what that feels like). Seed companies also tried to breed new plants to be able to offer something new each year.  This was the heyday of many great American seed companies that became institutions, like Burpee, introductions we are all familiar with were bred at Burpee's Fordhook Farm - including Fordhook Swiss Chard.  Other plants were bred by a horde amateur seed breeders - including the mechanic 'Radiator Charlie' who paid off his house with sales of seeds of his  "Mortgage Lifter" tomato.

I remember many winters as a child in Kansas, sitting in front of Grandpa's woodstove with snow all over the garden.  I went through the Burpee catalog, Park Seeds and many other seed proprietor catalogs underlining dozens of plants I wanted Grandpa to order for the coming year - I read each catalog hundreds of times, memorizing the descriptions and the names and adoring every single variety - the Burpee catalog in those days was many, many more pages long than it is today.  Grandpa never did, by the way.  He saved his own seeds for the most part and, if he needed more seed, he bought locally.  I didn't understand this until I was an adult growing my own seeds and feeling a little sheepish at how demanding I was about ordering seeds that Grandpa didn't want or need.

Up until the 1950's, one thing that was true of ALL plant breeding was done by amateur plant breeders. Sometime around the 1950's breeding began to fall into the hands of college educated plant breeders - people well versed with genetic backgrounds - and the beginning of commercial funding of science research.  The focus shifted from regional seed production to national and international seed sales and companies more interested in profit than in 'traditional values' of the older seed breeders.  Run on that Republican traditional value politicians!  

This became the years of the hybrids and crop yields went through the roof!  But the concentration was entirely on bushels per acre and very little else.  In many cases the plants required disease resistance in order to produce well and that was bred into the plants.  I don't want to disparage many advances made in this time frame because a lot of valuable work was done that should not be thrown out simply because the primary interest was in selling hybrid seeds.  

Mind you, to me, the line was crossed with genetically modifying plant seeds.  And patenting seeds. This is one more of the incursions the 'industrial' model of agriculture.  Once the industrial model was applied to agriculture, and profit became the only motive, agriculture as a whole was set adrift, and no part was more adrift than plant breeding.  The point was to make profit and keep making profit for as long as possible.  Hence, patents were 'necessary' and positive traits, valuable to individual gardeners and farmers and the eventual consumers (like taste) became lost in the race for profit.  By the time I became an adult gardener in the 1980's, seeds no longer were the seeds of my grandfather.

More on this tomorrow: the next frontier for garden seeds.

david
for the Seed library of Los Angeles, SLOLA

17 December 2008

Veggie Porn: The Seed Savers Exchange Catalog Arrived




Another page of nekked tomatoes! Who will stop them?
Probably not yours truly...




The seed catalogs keep coming and they are all devoured with gusto – I’ve not only already ordered from Pinetree (see a previous post), I’ve gotten the seeds and some of them are already planted (onion and shallot seeds needed to go in ASAP because they really are a little late). The Seed Savers Exchange catalog arrived a couple of days ago and I got to feast my eyes on this year’s beautiful edition of offerings. So gorgeous are the photos of all their delicious vegetables, I find myself drooling and fantasizing about the harvest I’m going to realize when I buy all these seeds: folks, I submit that these catalogs cause such visceral reactions in gardeners that there is no way to avoid calling them “vegetable porn.”

Not that I want to denigrate Seed Savers Exchange; their catalog is one of the highlights of the winter months. The photos are stunning and well done – if you get the catalog, may I refer you to their famous photo of a wagon load of many different squashes spilling out to the ground with a red barn as the backdrop. If you don’t get their catalog, go online and order it – whatever Seed Savers Exchange wants for it is cheap – that one photo alone is worth bankrolling.

But the reason Seed Savers Exchange is important goes much deeper than the gorgeous vegetable photos in their catalog – and if you are not a member, I urge you to consider it. Kind of like, beauty, in this case, is more than skin deep.

Before the modern time, seeds were passed down from generation to generation – a single person or family, might have raised a tomato on that parcel of land for twenty years or more, each year selecting the best, or the earliest or the most disease resistant. As this was done over all those years, the genetic composition of this tomato gradually changed and became more adapted to just that area. This occurred over the entire agricultural world and by the early 1900’s gardeners were privy to a veritable smorgasbord of different varieties of many different vegetables. These varieties were stable hybrids that became what they were over a long period of time, they are open-pollinated and represent a genetic diversity that is one of the truly great treasures of human kind; we now call them 'heirloom' seeds. The world was blessed with thousands of such tomatoes and other vegetables. However, the richness of these differences began to be lost soon thereafter.

On one hand, our food supplies were being put in the hands of larger farms with shipping over longer distances and the operations were being carried by larger corporations and machinery was replacing hand labor as fast as inventors could come up with machines to do the work. The qualities valued were of consistency, uniformity, and shipping and holding ability. And productivity above all else. These qualities were the qualities of modern plant breeding and most seed breeding (especially in the US) was done for the benefit of these large corporations to put veggies in our local supermarkets.

Not only did our vegetables begin to taste like cardboard, which was not important to the large corporations wanting uniformity and shipping ability above all else, the many different regional varieties, with their rich diversity of genetics began to disappear. Losing this genetic diversity is as frightening as leaving our food supply in the hands of a few huge corporations that have nothing more than their own profit as their guiding interest. The potato famine in Ireland, though exacerbated by the politics of the day, had a lack of genetic diversity in potatoes grown in Ireland at that time as a root cause. Once the blight had made landfall on the island, it romped through the entire country without stopping because the two major varieties planted there shared a genetic susceptibility to the blight. Other potatoes, not grown in Ireland, and ignored for food production at that time, were not susceptible to the blight and it was these other potatoes that provided the genetic material for Ireland to be able to resume growing potatoes to feed their population.

On one hand, governments have established seed banks filled with seeds of commercial crops kept in very cold and very dry conditions to preserve some of the genetic diversity for future generations. Every so often, a seed is selected and grown out to provide more seeds for the seed bank. Though expensive, it is one way genetic diversity can be preserved. Typical of a governmental operation, it is expensive and a large, capital-intense operation.

But the other way of preserving this genetic cornucopia is for gardeners all over the world to grow them and keep the genetic lines vibrant and alive – and even creating more diversity by growing different varieties in their own gardens – or even doing their own crossing and coming up with their own stable hybrids. And enjoying the produce in the meantime! Not nearly as expensive while being more diverse and a lot more fun.

A ‘lite’ version, is to purchase from Seed Savers Exchange and allow them to continue their efforts at growing out the seeds – or join Seed Savers Exchange and be a more integral part of their effort. I support Seed Savers Exchange; investigate them and I think you’ll find their efforts essential too.

At $35, it's not that expensive and would make a wonderful holiday present for someone on your list!

david

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