News tagged with pot
The potato is a starchy, tuberous crop from the perennial Solanum tuberosum of the Solanaceae family (also known as the nightshades). The word potato may refer to the plant itself as well as the edible tuber. In the region of the Andes, there are some other closely related cultivated potato species. Potatoes were first introduced outside the Andes region four centuries ago, and have become an integral part of much of the world's cuisine. It is the world's fourth-largest food crop, following rice, wheat, and maize. Long-term storage of potatoes requires specialised care in cold warehouses.
Wild potato species occur throughout the Americas, from the United States to Uruguay. The potato was originally believed to have been domesticated independently in multiple locations, but later genetic testing of the wide variety of cultivars and wild species proved a single origin for potatoes in the area of present-day southern Peru (from a species in the Solanum brevicaule complex), where they were domesticated 7,000–10,000 years ago. Following centuries of selective breeding, there are now over a thousand different types of potatoes. Of these subspecies, a variety that at one point grew in the Chiloé Archipelago (the potato's south-central Chilean sub-center of origin) left its germplasm on over 99% of the cultivated potatoes worldwide.
Following the Spanish conquest of the Inca Empire, the Spanish introduced the potato to Europe in the second half of the 16th century. The staple was subsequently conveyed by European mariners to territories and ports throughout the world. The potato was slow to be adopted by distrustful European farmers, but soon enough it became an important food staple and field crop that played a major role in the European 19th century population boom. However, lack of genetic diversity, due to the very limited number of varieties initially introduced, left the crop vulnerable to disease. In 1845, a plant disease known as late blight, caused by the fungus-like oomycete Phytophthora infestans, spread rapidly through the poorer communities of western Ireland, resulting in the crop failures that led to the Great Irish Famine. Nonetheless, thousands of varieties persist in the Andes, where over 100 cultivars might be found in a single valley, and a dozen or more might be maintained by a single agricultural household.
The annual diet of an average global citizen in the first decade of the 21st century included about 33 kg (73 lb) of potato. However, the local importance of potato is extremely variable and rapidly changing. It remains an essential crop in Europe (especially eastern and central Europe), where per capita production is still the highest in the world, but the most rapid expansion over the past few decades has occurred in southern and eastern Asia. China is now the world's largest potato-producing country, and nearly a third of the world's potatoes are harvested in China and India.
This text uses material from Wikipedia and is available under the GNU Free Documentation License.
So far, no one is suggesting checkpoints or fences to keep Washington state's legal pot within its borders.
Health Jan 29, 2013 | not rated yet | 0
(AP)—Texas Gov. Rick Perry has asked the embattled Cancer Prevention and Research Institute of Texas to stop giving grants until concerns about the beleaguered agency are resolved.
Cancer Dec 19, 2012 | not rated yet | 0
A new federal study says that teenagers' perception of the dangers of marijuana has fallen to the lowest level in more than 20 years.
Addiction Dec 19, 2012 | 5 / 5 (3) | 0
(AP)—Texas' embattled $3 billion cancer-fighting agency approved an $11 million grant to a biomedical company even though the proposal wasn't reviewed.
Other Nov 29, 2012 | not rated yet | 0
(AP)—The home state of the president who didn't inhale has become an unlikely front in the battle over medical marijuana.
Health Sep 03, 2012 | 5 / 5 (1) | 0
(HealthDay) -- The recent advent of so-called "synthetic pot" is a rising public health concern, researchers warn, sending kids to the emergency room and prompting parental calls to poison control centers.
Health Mar 19, 2012 | 5 / 5 (2) | 0
A mosquito carrying the West Nile virus was discovered in eastern Contra Costa County, Calif., marking the first time this year vector control officials have found such a sample in the county, a spokeswoman said Friday.
Diseases, Conditions, Syndromes Aug 24, 2011 | not rated yet | 0