Now that we’ve learned about the 4 steps in growing potatoes at PEI’s Potato Museum, let’s look at everything else there is to know about potatoes from where they first showed up to how they’re harvested today to what all we get from potatoes. First, though, let’s look at the value of potatoes.
When combined with whole milk (for vitamins A and D), potatoes supply almost all the necessary food elements.
a more complete protein than most food plants, including soybeans
rich in vitamins B and C, iron, calcium, magnesium, sulfur, potassium, and many trace elements
cholesterol-free
high in fiber
relatively low in calories (average potato has only 80-90 calories, the same as a large apple or orange) if you don’t include the butter, sour cream, cheese, and steaks we usually associate with potatoes
Ready for a baked potato for dinner tonight?
big-scale, modern-day harvesting
Since Prince Edward Island (PEI) grows potatoes on a large scale, modern techniques are used. A video was showing the process today. These pictures show what’s going on in the fields and the processing plants.
With today’s super crops going to a variety of markets, storage facilities need to be built with high-tech temperature and humidity controls.
how potatoes got to PEI
Andes potato growing today
back to how potatoes got to PEI
new strains of potatoes
Before the latter half of the 1800s, European potatoes were bred from the seed of 2 primary locations: Spain in 1550 and England in 1586. This narrow genetic based caused some weaknesses that resulted in the potato blight in the mid 1800s.
some of the newer varieties we know
In 1851, C.E. Goodrich, a NY state clergyman, received a small sample of potatoes from Panama. From 1 variety he grew seedlings that he distributed to growers as the Garnet Chili. From this variety, 170 older varieties can be traced.
Luther Burbank saw a fertilized seedball on an Early Rose plant—a direct descendant of Goodrich’s Garnet Chili. He cut out an eye, planted it, and the Idaho Baker was born.
Later on, a Canadian potato breeder, Gary Johnston, headed a university research team. In the 1960s, he crossbred a bright yellow wild potato from Peru with a domestic variety and developed the Yukon Gold.
Varieties are characterized by type: russet, round red, long white, or round white. They are also characterized by their specific gravity (starch).
starch in a potato
This test would make a great science project. To figure out the amount of starch in a potato, use gravity. By floating different varieties in a salt and water solution, some will sink and others will float.
imperfect potatoes
Most malformations and strange-looking potatoes develop as a result of adverse growing conditions.
potato plants
The potato plant is related to the tomato, eggplant, and pepper. It’s often mistaken for a root vegetable but is actually the thickened end of an underground stem—a tuber.
potato uses other than eating
We all know the food products made from processed potatoes: fries, chips, dehydrated potatoes, canned potatoes, and potato flour. Even ice cream and drinks like vodka and aquavit (a distilled spirit in Scandinavia) are made from processed potatoes. Potato starch is used in pudding mixtures, pie fillings, and custard powders.
then there’s the French fry
Here’s another possibility:
Thomas Jefferson is credited with bringing the French fry to North America. He had deep friend potatoes while serving as an Ambassador to France in the 1780s and brought the crop back to his garden when he came home.
And, of course, cosmetics used potatoes. It could whiten skin. A comb dipped in potato water and then combed through the hair would make the hair darker.
pests and diseases
More than 260 known viruses, bacteria, and fungi infect potatoes. Not only do they damage plant parts, they also carry diseases from plant to plant. Responses to this problem are chemical sprays and dusts, as well as using natural predators to control the pests. Other responses are planting guaranteed disease-free seed potatoes, introducing more resistant varieties of potatoes, and rotating crops.
Storing potatoes at the right temperature and humidity with adequate ventilation also reduces the risk of disease. Quarantine measures can confine some problems to limited areas.
Finally, a modern potato crop in bloom just 2 weeks before harvesting starts.
We’re not done with this great museum yet! But the next post is really short.