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what is use of tuber for the plant itself

2006-07-25 03:52:29 · 5 answers · asked by howsureyouare 3 in Science & Mathematics Botany

ya some mistake read question as why does tuber crops have tuber

2006-07-25 04:00:32 · update #1

5 answers

You don't speak no good English proper like.

2006-07-26 22:04:40 · answer #1 · answered by uselessadvice 4 · 0 0

What are Root and Tuber Crops?

There are approximately 400 vegetable crops (including root and tuber crops) that are commercially cultivated worldwide. The term “root and tuber crops” is a very general "catch-all" for a wide cross-section of subterranean storage (storing of starch. Also stores moisture to help plant survive long dry periods) organs of which there are approximately 38 root, 23 tuber, 14 rhizome, 11 corm and 10 bulb crops. Crops with an enlarged pseudostem or stem (e.g., leek, kohlrabi), even when subterranean, are generally not considered within the root and tuber crop category. Likewise, each of the crops included are commercially cultivated and marketed, though in some instances the volume is not great; species that are gathered form the wild are not included. All of the crops are utilized as food though in diverse ways: e.g., as staples, vegetables, sources of industrial products, condiments.

Importance of Root and Tuber Crops. Roots and tubers were critical components in the diet during the early evolution of mankind (5 million years ago). The migration of early hominids from the tropical rainforest to the savannah, a move that is thought to have occurred after Ardipithecus ramidus, had monumental consequences with regard to food availability). Food acquisition became more critical, and “feast and famine” cycles in food availability were common. Roots and tubers comprised significant components of the diet and had the advantage for hunter-gatherer societies in that they were available over extended periods of time due to their ability to be left in situ until needed. Even today, many indigenous populations display a remarkable knowledge of the general biology of the plant material they gather from the wild.

While the predecessor of modern man is often depicted as a hunter, in reality plant products typically represented substantially more than 50% of the diet. Since plant remains rarely survive, an indication of the importance of vegetable materials in the diet comes from recent hunter-gatherers. Estimates of up to 80% of the diet being of plant origin (e.g., roots, tubers, fruit, seeds) have been made. With the advent of agriculture, cultivated root and tuber crops became increasingly critical sources of food with the potato, cassava and sweetpotato representing the 3rd, 6th and 7th most important sources of food for humans worldwide today.

2006-07-26 04:39:02 · answer #2 · answered by cookie 2 · 0 0

Many desert plants have large tubers which besides storing starch also store moisture and help the plant survive long dry periods. In the Buffalo Gourd (Cucurbita foetidissima) of the Southwest U.S. the tuber can be as large as a man and can help the plant grow and bloom even during the most severe drought.

2006-07-25 13:58:11 · answer #3 · answered by Roblrsn 1 · 0 0

In tubers,the plant is storing starch.tuber crops usually dies off within 1 or 2 years after flowering.For flowering, fruit formation and all the plant need energy which they will get from the stored starch.Tubers can be stem or root tubers.

2006-07-25 11:36:44 · answer #4 · answered by Anonymous · 0 0

tubers are used for 1. storing excess carbs
2. help in vegetative propagation

2006-07-26 05:09:00 · answer #5 · answered by first s 2 · 0 0

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