Genetic studies in Zea mays L

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Maize has always been an important in cereals as it has been used as food, fodder and feed human consumption, animals and poultry respectively. Improvement in quality components of maize crop is the most important task to fulfill the nutritional requirements. Maize flour and its products are the main source of nutrition for its consumers. Genetic studies provide us a base and approach to improve the quality components, various physiological and morphological traits associated with yield and yield related traits.The cultivated maize scientifically is Zea mays L. that belongs to family kingdom Plantae, subkingdom Tracheobionta, superdivision Spermatophyta, division Magnoliophyta, classLiliopsida, subclass Commelinidae, OrderCyperales, Family Poaceae (grass family), genus Zea (corn), species Zea mays (corn). Itis a diploid specie (2n = 2x = 20) The genusZea includes 6 annual and3 perennial species. Maize has many uses. Its grain is a rich source of starch, vitamins, proteins and minerals. One hundred gram of fresh grain contains 361 calories of energy, 9.4 g protein, 4.3g fat, 74.4g carbohydrate, 1.8g fibre, 1.3g ash, 10.6 per cent water, 140mg vitamins, 9mg calcium.