Great Famine, famine that occurred in Ireland in 1845–49 when the potato crop failed in successive years. The Irish famine was the worst to occur in Europe in the 19th century: about one million people died from starvation or from typhus and other famin
In 1845 a strain of the water moldPhytophthora infestans, which causeslate blightin potatoes (as well as tomato plants), arrived in Ireland accidentally fromNorth America. When plants become infected with it, lesions appear on the leaves, petioles, and stems. A whitish growth of spore-producing...
The Irish Potato Famine, also known as the Great Hunger, began in 1845 when a mold known as Phytophthora infestans (or P. infestans) caused a destructive plant disease that spread rapidly throughout Ireland. The infestation ruined up to one-half of the potato crop that year, and about three...
The Irish Potato Famine that struck Ireland in the mid-1800s was a dark period when many people died or left Ireland. Learn about the potato blight that caused the famine and other facts related to the Irish Famine. Potatoes in Ireland Most kids like potatoes, especially when they're made...
in Ireland at the time did not realise was that the potato crops would fail for the next four years and that the disaster would lead to the deaths and the emigration of millions of its peoples to strange, foreign and distant lands. The potato was the staple diet for the Irish people at...
GREAT Famine, Ireland, 1845-1852PHYTOPHTHORA infestansPHYTOPATHOGENIC microorganismsNATURAL selectionis a major oomycete plant pathogen, responsible for potato late blight, which led to the Irish Potato Famine from 1845–1852. Since then, potatoes resistant to this disease have been bred and deployed ...
Potatoes are not native to Ireland but likely originated in the Andes Mountains of Peru, South America. In the early 1500s, Spanish conquerors found the Incas growing the vegetable, which the Spanish called patata. They were taken back to Europe and eventually reached England where the name cha...
they were forced to leave their homeland and move to America C. the weather conditions in Ireland were not suitable for growing potatoes D. the potato harvest was bad 相关知识点: 试题来源: 解析 D 正确答案:D解析:细节题。第二段第一句话提到了爱尔兰人在土豆饥荒中挨饿,是因为土豆是他们最主要...
blight. Diseased potatoes from the previous harvest had also been used as planters and sprouted diseased shoots. At first, the crop appeared healthy. But by harvest time the blight struck ferociously, spreading fifty miles per week across the countryside, destroying nearly every potato in Ireland....
potatoes, Ireland was left vulnerable to these blights due to its dependence on just one type, the Irish Lumper. When HERB-1, which had already wreaked havoc on crops in Mexico and the United States, made its way across the Atlantic sometime in 1844, its effect was immediate—and ...