Genetic analysis of the morphological differences between maize and teosinte john doebley and adrian stec department of plant biology, university of minnesota, st. The degree of dehulling will change the characteristics of the final maize. Maize production origin, maize global scenario maize production in kamataka maize production in the study area problems of maize production uti 1 ization pattern of maize marketing of maize farm gate price of maize b. Click below on a thumbnail map or name for subspecies profiles.
We selected 100 random regions averaging 144 kb in. In several countries, maize is the staple food for many people. Although little consensus exists as to the origin and early evolution of maize, there is general agreement that maize was first domesticated 7000 to 10 000 years ago in southern mexico. The 2016 maize recommended list is based on data collected from dafm trials from 20 to 2015. Dent formation on the top of the kernel having yellow or white colour. Zea is a genus of flowering plants in the grass family. Scholars agree that maize was domesticated from the plant teosinte zea mays spp. The plants database includes the following 3 subspecies of zea mays.
Zea species, ornamental maize, japanese striped corn zea. Christopher colombo encounters that maize was cultivated in haiti, where it was named mahiz. Maize milling technologies food fortification initiative. In sexual reproduction, two gametes fuse, bringing together homologous chromosomes from both parents. Growing maize in nigeria choice of land any well drained sandy loam or loamy soil can be used for planting maize but if in doubt, contact your nearest extension office or agroservice center.
John doebley laboratory of genetics, university of wisconsin, madison, wisconsin 53706. The result is a faster and easier auditing process. These histories of maize show that in some cases its symbolic role to. Maize zea mays, poaceae family is a cereal crop grown in various agroecological zones, as a single crop or in mixed cropping. Grain yield determination and resource use efficiency in.
Browse pictures and read growth cultivation information about zea species, ornamental maize, japanese striped corn zea mays subsp. It is not only an important experimental model plant, but also a major livestock feed crop and a significant source of industrial products such as sweeteners and ethanol. Genetic analysis of the morphological differences between. Zea maize, commonly called corn in the united states, is one of the most important food crops.
Maize zea mays l is one of the most important cereal crops grown in africa and rank the third most cultivated crop in nigeria ayeni, 1987. Introduction maize zea mays l is the most important and most widely distributed cereal in the world after wheat and rice. Successful maize production depends on the correct application of production inputs that will sustain the environment as well as agricultural production. Maize research institute zemun polje, slobodana bajica 1, 11185. Zea maize private limited is a private incorporated on 24 july 20. Maize zea mays or corn plays many varied and important roles in society.
Grain yield determination and resource use efficiency in maize hybrids released in different decades 21 in kernel number at low resource availability per plant 29. Maize zea maysl is the staple food of many african countries and many types of maize are grown around the world. It is mainly used as a food source and now has become the most important raw material for animal feed pimentel and patzek, 2005. Other moche jars depict maize alone or associated with a variety of animals including birds, frogs. It is an annual plant belongingto the grass family and it is a warm season crop requiringwarmer growingtemperatures than the. The production of this crop has been transformed from that of a minor crop being grown around the homestead to a major or.
Response of maize zea mays lvarieties to planting densities. The moche depicted maize in association with their anthropomorphic creator god aiapaec fig. Characterization and distribution of invertase activity in developing maize zea mays kernels. Unesco eolss sample chapters soils, plant growth and crop production vol. Maize plants are erect and may grow as tall as 3 m, with little tillering capacity. Quality protein maize qpm with homozygous embryo and endosperm for mutant allele o2 at the. Introduction this booklet lists the forage maize varieties that are considered most suitable for growing under irish conditions. Pdf maizegamagrass interspecific hybrid, zea mays x. The average sowing and harvesting dates for these trials was 16th april and 19th october respectively. Maize is thought to have originated at least 5000 years ago in the highlands of mexico, peru, ecuador, andor bolivia because of the great density of native forms found in the region. Genetic modification of maize has been occurring for thousands of years. The origin and evolution of maize in the southwestern. The maize grain can be prepared for food in many different ways.
Yellow maize, nutritional value, antinutritional factors, fermentation. Introduction maize is a tropical grass that is well adapted to many climates and hence has wideranging maturities from 70 days to 210 days. In the americas, maize is called corn, somewhat confusingly for the rest of the englishspeaking world, where corn refers to the. Is the only cereal, which was grown systematically by american indians.
Evaluation of different maize varieties zea mays l. Zea surname, a surname zea island, an island of the cyclades archipelago bay of zea, one of the harbours of piraeus. The hypothesis of maize descending from teosinte is the oldest of four widely considered hypotheses on the origin of maize. It is also the most widely accepted hypothesis at present. Materials and methods plant material tetraploid maize parental line v182 2n 4x 40 and two maizegamagrass hybrids, zea mays l. Nutritional, medicinal and economical importance of corn. Maize milling technologies small, medium and large. Archeological and molecular data indicates that modern maize was domesticated from annual balsas teosinte zea mays ssp.
There have been four principal and several minor theories regarding the origin of. This exact trait prompted arturo warman to refer to maize as a human offspring, our plant kin. It is classified as nongovt company and is registered at registrar of companies, delhi. Maize analytics ebas reporting and filtering capabilities allow healthcare privacy officers to more quickly identify suspicious activities like snooping and identity theft and distinguish them from legitimate record accesses. Maize is a highly domesticated crop species that does not. Several wild species are commonly known as teosintes and are native to mesoamerica. Characterization and distribution of invertase activity in. In this study we report the systematic analysis of contiguous sequences of the maize genome. Structure and architecture of the maize genome plant. Zea maize private limited company, directors and contact. Furthermore, the genetics of 5 adaptation to the new environmental and cultural context of.
Maize is not only a major cereal crop in the present day world but it. Paul, minnesota 55108 manuscript received december 3 1, 1990 accepted for publication may 24, 1991 abstract. Maize is also recognized by different synonyms such as zea, corn, silk corn etc. Zea, an abbreviation for the mycotoxin zearalenone. Center of origin mexico, central america earliest plant breeders women important source of human and animal sustenance the miracle of maize is manifested in the thousands. This document provides an overview of baseline biological information relevant to risk. About the classification report about the classification download. Because of its economic importance, the genetics of corn has been studied extensively.
It possesses over 32,000 genes on ten chromosomes with a genome size of 2. Introduction while it is generally recognized that commercial hybrid maize zea mays l. An overview of maize processing chemical composition of maize. It is an annual plant belongingto the grass family and it is a warm season crop requiringwarmer growingtemperatures than the smallgrains for example wheat. Classification for kingdom plantae down to species zea mays l. The contributions in this volume demonstrate that its role was more complex and varied than had been previously assumed. Introduction corn, commonly known as maize zea mays l. Maize zea mays is a plant of enormous modernday economic importance as foodstuff and alternative energy source. With that brief introduction to maize, we encourage you to explore gramenes doorway to zea to learn many more specific details about this unique grass species. Nafziger encyclopedia of life support systems eolss 1. Materials and methods plant material tetraploid maize parental line v182 2n 4x 40 and two maize gamagrass hybrids, zea mays l. The depression or dent in the corn of the seed is the result of rapid drying and shrinkage. It spread to the rest of the world after european contact with the americas in the late 15th and early 16th century.
Yellow maize zea mays was fermented according to a traditional fermentation. It was advanced by ascherson in 1895 mangelsdorf and reeves 1939. Helicoverpa zea, the corn earworm, a major agricultural pest. It comes after wheat and rice in terms of world importance.
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