what is difference between potato and sweet potato in horticulture?
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Here's a list of differences between sweet potatoes and yams:\n\nhttp://www.ces.ncsu.edu/depts/hort/hil/hil-23-a.html\n\nAsking the difference between a potato and a sweet potato is bit like asking the difference between eggs and chocolate eggs, they are two very different things that are sort of the same shape! Here's some info about regular potatoes:\n\nhttp://www.healthypotato.com/nutrition/varieties.asp#russet\n\n\nAnd here's some about sweet potatoes:\n\nhttp://www.recipes4us.co.uk/Specials%20and%20Holidays/Sweet%20Potatoes%20Origin%20Uses%20Recipes.htm
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The differences between short-day and long-day plants in view of the effect of phytochrome can be summarized as follows (according to H. MOHR and P. SCHOPFER, 1978): \n\nlong-day plants: short day + enough PFR (during the middle of the skotophile phase) > production of flowering hormones \n\nshort-day plants: short day + enough PFR (during the middle of the skotophile phase) > no production of flowering hormones \n\nThe qualitative difference in the reaction to the same signal is genetically fixed. \n\npl. visit:\nhttp://www.biologie.uni-hamburg.de/b-online/e30/30c.htm
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No, they are a fruit\n\nSeriously seeds and fruit come from a plant while vegetables are part of the living plant like the leaf, root or stem.
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They are heterozygous. Cultivated sugarcane is a highly heterozygous hybrid derived from crossing two highly heterozygous parents which is clonally propagated\n\nPotatoes are done by clonal selection  and they are highly heterzygote.Many types of plants are reproduced from a process called vegetative propagation. This process creates an identical plant from a piece of root or stem from the donor plant. \n\nPotatoes are an example of a plant clone. For example Idaho potato growers use cut “seed” pieces of Russet Burbank potatoes to grow a new crop each year.
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From the cooking point of view, furits have pips -as they develope from the ovary, a part of the flower- and vegetables don't. Vegetables are the edible leaves, seeds, stems, roots or tubers.\n\nBut if you stop to think, vegetable is any plant or edible part of a plant, including fruits.
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Plants with short roots-all cereals eg. wheat,rice,etc.\nplants with big roots-all tap rooted plants eg. pipal,mango.\nplants with small roots-herbs,shrubs eg. Shoe flower plant.\nplants with edible roots-radish(Raphanus sativus),carrot(Daucus carrota),Beet root(Beta vulgaris),etc.\nplants with long root system are the plants which are tall,huge.Apart from these the xerophytes also have deep penetrating root system, these roots are long and go deep in search of water.eg all cacti.
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In nature, plants have evolved to subtle forms of self protection, the Fruits of the potatoe may be poisonous as a means of self protection.\n\nPotato plants have a low-growing habit and bear white flowers with yellow stamens. They grow best in cool climates with good rainfall or irrigation such as in Ireland, Maine, Idaho, Colorado, New Brunswick, Prince Edward Island, Belarus, Germany, Peru, Poland, and Russia. But they adapt readily, and producers grow them, at least on a small scale, in most temperate regions.\n\nBuds called "eyes" appear on the surface of potato tubers. Since common varieties of potatoes do not produce seeds (they bear sterile flowers), propagation occurs by planting pieces of existing tubers, cut to include at least one eye. Confusingly, these pieces can bear the name "seed potatoes". The haulm or shaw of the potato plant may wither if early harvesting does not occur.\n\nAfter potato plants flower, some varieties will produce small green fruit that look similar to green cherry-tomatoes. These produce seeds like other fruits. Insects can cross-pollinate the flowers of different potato plants. Each of the fruits can contain up to 300 true seeds. One can separate the seeds from the fruits by putting them in a blender on a slow speed with some water, then leaving them in water for a day so that the seeds will sink and the rest of the fruit will float. Potato fruit contains poisonous substances: one should not eat them. However, some horticulturists sell chimeras made by grafting a tomato plant onto a potato plant, which can produce both edible tomatoes and potatoes.\n\nFAYETTEVILLE, Ark. --- Insect pests can severely damage Arkansas crops, but the plants are not exactly defenseless when under attack. \n\nPlants possess some means to defend themselves against chewing insects, said Dr. Ken Korth, University of Arkansas Division of Agriculture plant pathologist. \n\n"Self defense often involves the production of chemicals in the plant that are distasteful or toxic to insects," Korth said. "Other chemicals can be released from insect-injured leaves that attract enemies of the insects damaging the plant. \n\n"This type of natural defense doesn't have to be sprayed on, it's always there," he said. "It's targeted specifically to the insects that are causing the damage and doesn't harm those that are beneficial to the plants." \n\nBeneficial insects include those that feed on the pests, reducing their impact on crops. \n\nWith funding from the Division of Agriculture, USDA and the Arkansas Rice Research and Promotion Board, Korth and graduate student Karen Gomez of Santa Cruz, Bolivia, are studying the genetics of how plants protect themselves. Armed with such information, plant breeders could develop crop plants that are less reliant on chemical pesticides. \n\n"We're asking, 'what is the plant's defense strategy?'" Korth said. "How does the plant defend itself, and how can we tap into that and enhance those defenses?" \n\nKorth has identified genes that encode proteins he believes are involved in defense. "These genes and proteins are active in damaged plants and not in undamaged plants," he said. \n\nHe uses Medicago truncatala, a relative of alfalfa that is a good research model because the plant's genetics have been mapped. "What we learn from it can be applied to rice or other plants," he said. \n\nTo see how the genes react, undamaged plants are compared with plants that have been chewed on by caterpillars. A third set of plants is damaged mechanically. \n\nThe defensive genes go to work only on the plants damaged by the caterpillars. \n\nIn another test, mechanically damaged plants responded when regurgitated matter from the caterpillars was applied to the damaged tissues. \n\n"Our tests show there is a chemical response to insect damage that is different from purely mechani
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Potatoes grow under ground. They can really grow anywhere that's not desert or tundra.
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Actually if we grow a plant( especially the trees) from its seed it may take a long time to flower. So if we do budding or grafting or layering the plant part will behave like the mature plant and we will get quick yield. Through seeds the plant may not produce the same quality seedlings like that of mother plant. Most often the undesired character can appear. In order to produce plant that has all the characters of the mother plants these methods are essential. In some plants like roses it is very difficult to produce seeds and it is very difficult to germinate also. So in that case these techniques are essential. In some cases the plant may have triploid and tetraploids which often may not produce seeds at all. More over, seedless varieties are preferred as in case of banana mostly the edible varieties are triploids. In some plants we may require thousands of progenies at a time (orchids, bananas etc). Then we will go for tissue culture. In tuber crops, ginger, turmeric etc he main propagation is through the tubers. I hope it is clear now.
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Basically, plants reproduce like most other organisms... sexually.  The main difference is that their young (seeds-to-be; ovules?) grow either inside a receptacle, or fruit, (angiosperms) or without a receptacle (gymnosperms).
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there are tons of factors affecting plant growth. one of them is the kind of soil for the plant to grow. some plants need a specific type of soil in order to grow properly. another factor is the sunlight and food it gets. it needs the propwer nourishment for the palnt to fluorish. next is the nutrients that a plant need. some may need medicines to help them grow better.
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Vascular plants are a more recent evolutionary development than nonvascular plants. Nonvascular plants are bryophytes, the most primitive land-dwelling plantsm, and lack the adaptations to transport water and nutrients against gravity (lignin-impregnated conducting cells).\nVascular plants are, evolutionarily speaking, more recent, and contain xylem and phloem, the lignin-impregnated conducting cells which provide a rigid upright support structure and which transport water and nutrients throughout the plant. Xylem is the "woody" part of vascular plants, and transports sap up from the roots, while phloem transports nutrients throughout the plant.
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plants and roots of plants
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this depends on the plant...different plants have VERY different requirements!
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One thing that differs plants from animal is their  hability to synthetize (create) the own food.  Plant build carbohidrates from the photosynthesis process.  Animal can't build their own food.  \n\nBut in the kingdom Protista are living organism that have the two charateristics.  Build their own food and eat other substances as an energy source.  One example is the single-celled Euglena.
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It seems that angiosperms are one of two divisions of a flowering plant, the other one being called gymnosperms. They seem to be broken down into dicots and monocots. The important thing to remember about angiosperms is it is a seed bearing plant, often a true fruit. This gives it advantages non-seed bearing plants do not have in propagation of their species. They can have the fruits eaten by herbivores and have those undigested seeds be deposited in its own fertilizer far and wide from the original location of the seed! I believe a scientific name for the division is Magnoliophyta but you'll have to double check on that.
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This is the problem with common names. They jump around from the original use to other things that look similar. \n\nYam = Dioscorea to me, but \nYam = Ipomoea batatas [Sweet Potato] to others, and I have even seen\nYam = Manihot esculenta [Cassava]\n\nlook at the pics on the links and pick your yam.