Ms. Collins, who once worked on a potato farm, said the proposal to limit potatoes was overly restrictive.
Mr. Keeling said potatoes provided many of the nutrients like potassium and fiber that the Agriculture Department recommends and that limiting potatoes would increase the cost of meals.
"Despite the fact that Congress said the U.S.D.A. could not limit potatoes in school lunches or breakfast, we still feel like the potato is being downplayed in favor of other vegetables in the new guidelines," said Mark Szymanski, a spokesman for the council.
We observed a strikingly different pattern of tomato responses to strain UW551, a temperate strain with a relatively narrow host range limited to potato, tomato, and some related species.
Largely as a result of economic constraints, the diet of the Irish poor had become increasingly monotonous and was limited to potato and dairy products by the mid-19th century.
In contrast with the sample from potato, limited to no genetic diversity was observed within the tobacco sample from NC and Brazil.
Like the Atkins diet, the South Beach diet strictly limits bread, potatoes and other carbohydrates, especially during a two-week initiation period, and allows the dieter to eat red meat, eggs and cheese.
The two, Catherine Gray, 14, of Eastchester, and Maria Fufidio, 15, of Larchmont, say that they have tried dieting, and that they have a friend who, before she got her navel pierced, lost 10 pounds on the South Beach diet, which limits bread, potatoes and other carbohydrates.
The importance of ensuring sufficient availability of water is illustrated comparing potential and water-limited potato yields in Africa.
When they were younger, they were limited to wielding the potato smasher (which is how we mash up guacamole here), but they've advanced.
The shelf life of minimally processed potatoes is limited by enzyme-catalysed browning reactions.
