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Useful Tropical Plants

Oryza sativa

L.

Poaceae

+ Synonyms

Oryza palustris Salisb.

Oryza communissima Lour.

Oryza glutinosa Lour.

Oryza montana Lour.

Oryza praecox Lour.

Oryza perennis Moench

Oryza parviflora P.Beauv.

Oryza denudata (Desv.) Steud.

Oryza elongata (Desv.) Steud.

Oryza marginata (Desv.) Steud.

Oryza mutica Steud.

Oryza pubescens (Desv.) Steud.

Oryza rubribarbis (Desv.) Steud.

Oryza sorghoidea (Desv.) Steud.

Oryza aristata Blanco

Oryza formosana Masam. & Suzuki

Common Name: Rice

Oryza sativa
Seedhead
Photograph by: Gary Kramer, USDA Natural Resources Conservation Service.
Public domain
Oryza sativa Oryza sativa Oryza sativa Oryza sativa Oryza sativa

General Information

Rice is an erect, usually annual grass though there are also perennial forms. It varies considerably in height and habit according to variety with cultivars ranging from 30 - 180cm tall[
1040
Title
The Wild Relatives of Rice, A Genetic Resources Handbook
Publication
 
Author
Vaughan D.A.
Website
http://irri.org/
Publisher
International Rice Research Institute; Philippines
Year
1994
ISBN
971-22-0057-4
Description
An excellent guide to the wild species of the genus Oryza. It gives good descriptions of the species, habitats etc and often gives details of uses. It can be downloaded from the Internet
].
Rice has been cultivated in India and China for at least 4,000 years[
238
Title
Encyclopaedia of Herbs and their Uses.
Publication
 
Author
Bown. D.
Publisher
Dorling Kindersley, London.
Year
1995
ISBN
0-7513-020-31
Description
A very well presented and informative book on herbs from around the globe. Plenty in it for both the casual reader and the serious student. Just one main quibble is the silly way of having two separate entries for each plant.
]. It is one of the most commonly cultivated crops in the world, being grown for its edible seed in tropical to warm temperate climates around the world and forming a staple food for about half the world's human population[
200
Title
The New RHS Dictionary of Gardening. 1992.
Publication
 
Author
Huxley. A.
Publisher
MacMillan Press
Year
1992
ISBN
0-333-47494-5
Description
Excellent and very comprehensive, though it contains a number of silly mistakes. Readable yet also very detailed.
].

Known Hazards

None known

Botanical References

200
Title
The New RHS Dictionary of Gardening. 1992.
Publication
 
Author
Huxley. A.
Publisher
MacMillan Press
Year
1992
ISBN
0-333-47494-5
Description
Excellent and very comprehensive, though it contains a number of silly mistakes. Readable yet also very detailed.

Range

Only known in cultivation.

Habitat

Not known in a truly wild situation

Properties

Edibility Rating *  *  *  *  *
Medicinal Rating *  *
Other Uses Rating *  *
HabitAnnual/Perennial
Height1.00 m
PollinatorsWind
Cultivation StatusCultivated

Cultivation Details

Rice can be grown in the moist tropics, subtropics and warm temperate zone, succeeding at elevations up to 2,500 metres in tropical areas. It grows best in areas where annual daytime temperatures are within the range 20 - 30°c, but can tolerate 10 - 36°c[
418
Title
Ecocrop
Publication
 
Author
 
Website
http://ecocrop.fao.org/ecocrop/srv/en/home
Publisher
 
Year
0
ISBN
 
Description
Basic information on a wide range of useful plants, plus details of environmental needs where available.
]. Growth ceases below 10°c and plants have no tolerance to frost[
418
Title
Ecocrop
Publication
 
Author
 
Website
http://ecocrop.fao.org/ecocrop/srv/en/home
Publisher
 
Year
0
ISBN
 
Description
Basic information on a wide range of useful plants, plus details of environmental needs where available.
]. It prefers a mean annual rainfall in the range 1,500 - 2,000mm, but tolerates 1,000 - 4,000mm[
418
Title
Ecocrop
Publication
 
Author
 
Website
http://ecocrop.fao.org/ecocrop/srv/en/home
Publisher
 
Year
0
ISBN
 
Description
Basic information on a wide range of useful plants, plus details of environmental needs where available.
].
Requires a wet to inundated soil and a position in full sun[
238
Title
Encyclopaedia of Herbs and their Uses.
Publication
 
Author
Bown. D.
Publisher
Dorling Kindersley, London.
Year
1995
ISBN
0-7513-020-31
Description
A very well presented and informative book on herbs from around the globe. Plenty in it for both the casual reader and the serious student. Just one main quibble is the silly way of having two separate entries for each plant.
]. Prefers a pH in the range 5.5 - 7, tolerating 4.5 - 9[
418
Title
Ecocrop
Publication
 
Author
 
Website
http://ecocrop.fao.org/ecocrop/srv/en/home
Publisher
 
Year
0
ISBN
 
Description
Basic information on a wide range of useful plants, plus details of environmental needs where available.
].
Depending upon variety, rice can mature a crop of seed in anything from 60 - 200 days[
418
Title
Ecocrop
Publication
 
Author
 
Website
http://ecocrop.fao.org/ecocrop/srv/en/home
Publisher
 
Year
0
ISBN
 
Description
Basic information on a wide range of useful plants, plus details of environmental needs where available.
].
There are many named varieties that have been developed from the original wild form and can be grown in a wide diversity of climates and soil types[
200
Title
The New RHS Dictionary of Gardening. 1992.
Publication
 
Author
Huxley. A.
Publisher
MacMillan Press
Year
1992
ISBN
0-333-47494-5
Description
Excellent and very comprehensive, though it contains a number of silly mistakes. Readable yet also very detailed.
]. These can be grouped into three main forms:-
Japonica - developed in the cooler regions of the tropics and subtropics, it can also be grown in warm temperate areas. Small to medium plants, they develop few tillers and produce short, roundish grains that tend to be moist and sticky when cooked[
1040
Title
The Wild Relatives of Rice, A Genetic Resources Handbook
Publication
 
Author
Vaughan D.A.
Website
http://irri.org/
Publisher
International Rice Research Institute; Philippines
Year
1994
ISBN
971-22-0057-4
Description
An excellent guide to the wild species of the genus Oryza. It gives good descriptions of the species, habitats etc and often gives details of uses. It can be downloaded from the Internet
].
Javanica (often called tropical Japonica) - grown at higher elevations in the tropics, they are tall plants that develop few tillers. They produce long, broad, thick grains[
1040
Title
The Wild Relatives of Rice, A Genetic Resources Handbook
Publication
 
Author
Vaughan D.A.
Website
http://irri.org/
Publisher
International Rice Research Institute; Philippines
Year
1994
ISBN
971-22-0057-4
Description
An excellent guide to the wild species of the genus Oryza. It gives good descriptions of the species, habitats etc and often gives details of uses. It can be downloaded from the Internet
].
Indica - the major form of rice, cultivated widely at lower to medium elevations in the tropics and subtropics. Tall plants, they form many tillers and produce slender, short to long grains that are drier and flakier when cooked[
1040
Title
The Wild Relatives of Rice, A Genetic Resources Handbook
Publication
 
Author
Vaughan D.A.
Website
http://irri.org/
Publisher
International Rice Research Institute; Philippines
Year
1994
ISBN
971-22-0057-4
Description
An excellent guide to the wild species of the genus Oryza. It gives good descriptions of the species, habitats etc and often gives details of uses. It can be downloaded from the Internet
].
There are many different cultivars of each form. Some of these cultivars are starchy and are more suited to use in cakes, soups, pastry, breakfast foods etc[
46
Title
Dictionary of Economic Plants.
Publication
 
Author
Uphof. J. C. Th.
Publisher
Weinheim
Year
1959
ISBN
-
Description
An excellent and very comprehensive guide but it only gives very short descriptions of the uses without any details of how to utilize the plants. Not for the casual reader.
]. Other cultivars have a sweeter, glutinous texture, these are used for special purposes such as sweetmeats[
46
Title
Dictionary of Economic Plants.
Publication
 
Author
Uphof. J. C. Th.
Publisher
Weinheim
Year
1959
ISBN
-
Description
An excellent and very comprehensive guide but it only gives very short descriptions of the uses without any details of how to utilize the plants. Not for the casual reader.
].
Within these divisions, the varieties are further defined by whether they have short, medium or long grains[
46
Title
Dictionary of Economic Plants.
Publication
 
Author
Uphof. J. C. Th.
Publisher
Weinheim
Year
1959
ISBN
-
Description
An excellent and very comprehensive guide but it only gives very short descriptions of the uses without any details of how to utilize the plants. Not for the casual reader.
]. Long grained forms usually have the highest value, though short-grained forms are preferred in many countries[
46
Title
Dictionary of Economic Plants.
Publication
 
Author
Uphof. J. C. Th.
Publisher
Weinheim
Year
1959
ISBN
-
Description
An excellent and very comprehensive guide but it only gives very short descriptions of the uses without any details of how to utilize the plants. Not for the casual reader.
].

Edible Uses

Seed - cooked. It is usually either boiled or steamed and can be eaten in a wide variety of both savoury and sweet dishes[
238
Title
Encyclopaedia of Herbs and their Uses.
Publication
 
Author
Bown. D.
Publisher
Dorling Kindersley, London.
Year
1995
ISBN
0-7513-020-31
Description
A very well presented and informative book on herbs from around the globe. Plenty in it for both the casual reader and the serious student. Just one main quibble is the silly way of having two separate entries for each plant.
]. It is an essential accompaniment for curries and Far Eastern dishes, it is used in European dishes such as paella and risotto, whilst it is also used in sweet dishes such as rice pudding[
238
Title
Encyclopaedia of Herbs and their Uses.
Publication
 
Author
Bown. D.
Publisher
Dorling Kindersley, London.
Year
1995
ISBN
0-7513-020-31
Description
A very well presented and informative book on herbs from around the globe. Plenty in it for both the casual reader and the serious student. Just one main quibble is the silly way of having two separate entries for each plant.
]. The grain can also be popped like popcorn to make a breakfast cereal[
238
Title
Encyclopaedia of Herbs and their Uses.
Publication
 
Author
Bown. D.
Publisher
Dorling Kindersley, London.
Year
1995
ISBN
0-7513-020-31
Description
A very well presented and informative book on herbs from around the globe. Plenty in it for both the casual reader and the serious student. Just one main quibble is the silly way of having two separate entries for each plant.
].

An oil is obtained from the seed[
418
Title
Ecocrop
Publication
 
Author
 
Website
http://ecocrop.fao.org/ecocrop/srv/en/home
Publisher
 
Year
0
ISBN
 
Description
Basic information on a wide range of useful plants, plus details of environmental needs where available.
]. It is used in cooking and as a salad oil[
418
Title
Ecocrop
Publication
 
Author
 
Website
http://ecocrop.fao.org/ecocrop/srv/en/home
Publisher
 
Year
0
ISBN
 
Description
Basic information on a wide range of useful plants, plus details of environmental needs where available.
].

Medicinal

Rice is a nutritive, soothing, tonic herb that is diuretic, reduces lactation, improves digestion and controls sweating[
238
Title
Encyclopaedia of Herbs and their Uses.
Publication
 
Author
Bown. D.
Publisher
Dorling Kindersley, London.
Year
1995
ISBN
0-7513-020-31
Description
A very well presented and informative book on herbs from around the globe. Plenty in it for both the casual reader and the serious student. Just one main quibble is the silly way of having two separate entries for each plant.
].

The seeds are taken internally in the treatment of urinary dysfunction[
238
Title
Encyclopaedia of Herbs and their Uses.
Publication
 
Author
Bown. D.
Publisher
Dorling Kindersley, London.
Year
1995
ISBN
0-7513-020-31
Description
A very well presented and informative book on herbs from around the globe. Plenty in it for both the casual reader and the serious student. Just one main quibble is the silly way of having two separate entries for each plant.
]. The seeds, or the germinated seeds, are taken to treat excessive lactation[
238
Title
Encyclopaedia of Herbs and their Uses.
Publication
 
Author
Bown. D.
Publisher
Dorling Kindersley, London.
Year
1995
ISBN
0-7513-020-31
Description
A very well presented and informative book on herbs from around the globe. Plenty in it for both the casual reader and the serious student. Just one main quibble is the silly way of having two separate entries for each plant.
]. The germinated seeds are used to treat poor appetite, indigestion abdominal discomfort and bloating[
238
Title
Encyclopaedia of Herbs and their Uses.
Publication
 
Author
Bown. D.
Publisher
Dorling Kindersley, London.
Year
1995
ISBN
0-7513-020-31
Description
A very well presented and informative book on herbs from around the globe. Plenty in it for both the casual reader and the serious student. Just one main quibble is the silly way of having two separate entries for each plant.
].
The grains are often cooked with herbs to make a medicinal gruel[
238
Title
Encyclopaedia of Herbs and their Uses.
Publication
 
Author
Bown. D.
Publisher
Dorling Kindersley, London.
Year
1995
ISBN
0-7513-020-31
Description
A very well presented and informative book on herbs from around the globe. Plenty in it for both the casual reader and the serious student. Just one main quibble is the silly way of having two separate entries for each plant.
].

The rhizome is taken internally in the treatment of night sweats, especially in cases of tuberculosis and chronic pneumonia[
238
Title
Encyclopaedia of Herbs and their Uses.
Publication
 
Author
Bown. D.
Publisher
Dorling Kindersley, London.
Year
1995
ISBN
0-7513-020-31
Description
A very well presented and informative book on herbs from around the globe. Plenty in it for both the casual reader and the serious student. Just one main quibble is the silly way of having two separate entries for each plant.
]. The rhizomes are harvested at the end of the growing season and dried for use in decoctions[
238
Title
Encyclopaedia of Herbs and their Uses.
Publication
 
Author
Bown. D.
Publisher
Dorling Kindersley, London.
Year
1995
ISBN
0-7513-020-31
Description
A very well presented and informative book on herbs from around the globe. Plenty in it for both the casual reader and the serious student. Just one main quibble is the silly way of having two separate entries for each plant.
].

Other Uses

Although grown mainly for food, rice starch it is also used in cosmetics, laundering starch, and textiles[
418
Title
Ecocrop
Publication
 
Author
 
Website
http://ecocrop.fao.org/ecocrop/srv/en/home
Publisher
 
Year
0
ISBN
 
Description
Basic information on a wide range of useful plants, plus details of environmental needs where available.
].

An oil is obtained from the seed[
418
Title
Ecocrop
Publication
 
Author
 
Website
http://ecocrop.fao.org/ecocrop/srv/en/home
Publisher
 
Year
0
ISBN
 
Description
Basic information on a wide range of useful plants, plus details of environmental needs where available.
]. It is used for soap manufacture and it is made into a plastic packaging material[
418
Title
Ecocrop
Publication
 
Author
 
Website
http://ecocrop.fao.org/ecocrop/srv/en/home
Publisher
 
Year
0
ISBN
 
Description
Basic information on a wide range of useful plants, plus details of environmental needs where available.
].

Rice straw is used for weaving into hats, shoes etc[
46
Title
Dictionary of Economic Plants.
Publication
 
Author
Uphof. J. C. Th.
Publisher
Weinheim
Year
1959
ISBN
-
Description
An excellent and very comprehensive guide but it only gives very short descriptions of the uses without any details of how to utilize the plants. Not for the casual reader.
,
272
Title
Plants and People of Nepal
Publication
 
Author
Manandhar. N. P.
Publisher
Timber Press. Oregon.
Year
2002
ISBN
0-88192-527-6
Description
Excellent book, covering over 1,500 species of useful plants from Nepal together with information on the geography and peoples of Nepal. Good descriptions of the plants with terse notes on their uses.
]. Rice straw is also used for making and repairing thatched houses in Bangladesh, Nepal and India. It is used for construction of grain storage structures, ropes, packaging material and bags in India[
418
Title
Ecocrop
Publication
 
Author
 
Website
http://ecocrop.fao.org/ecocrop/srv/en/home
Publisher
 
Year
0
ISBN
 
Description
Basic information on a wide range of useful plants, plus details of environmental needs where available.
]. It is also used as a fuel in Vietnam[
418
Title
Ecocrop
Publication
 
Author
 
Website
http://ecocrop.fao.org/ecocrop/srv/en/home
Publisher
 
Year
0
ISBN
 
Description
Basic information on a wide range of useful plants, plus details of environmental needs where available.
]. In China, India, Indonesia and Pakistan rice straw is used in the production of paper[
418
Title
Ecocrop
Publication
 
Author
 
Website
http://ecocrop.fao.org/ecocrop/srv/en/home
Publisher
 
Year
0
ISBN
 
Description
Basic information on a wide range of useful plants, plus details of environmental needs where available.
].

The grain husks are used as a fuel; as an addition to concrete; for making hardboard; and as an abrasive[
418
Title
Ecocrop
Publication
 
Author
 
Website
http://ecocrop.fao.org/ecocrop/srv/en/home
Publisher
 
Year
0
ISBN
 
Description
Basic information on a wide range of useful plants, plus details of environmental needs where available.
].

Propagation

Seed -

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