Effect of integrated nutrient management on yield of maize. Usdaars colorado maize water productivity dataset 2008. Maize seed variety ikom local white were treated to one level of npk 15. A copious quantity of pollen production is desirable from the male parent in hybrid maize zea mays l. For such characterization, the use of molecular markers provided an opportunity to analyze largescale of maize populations 8 like previously used to study the structure of plants genetic variation 9 10. Is the only cereal, which was grown systematically by american indians. There have been four principal and several minor theories regarding the origin of maize. Pdf on jan 1, 2018, g b yenge and others published physical properties of maize zea mays l. Most is used to make corn ethanol, animal feed and other maize products, such as corn starch and corn syrup. Alphabetical list of crops with botanical name and crop code crop name botanical name icc code previous. Root zone soil moisture redistribution in maize zea mays l.
Immature embryos of the maize inbred line b104 were transformed by a. Maize is very essential either for the human food or animal feeding and a common ingredient for industrial products. Dating the initial spread of zea mays michael blake introduction 55 temporal frameworks for zea maysearly dispersal 56 direct dating of maize 57 a note on the indirect dating of maize 59 dating the early distribution of zea pollen 60 dating the early distribution of maize phytoliths 63 dating the early distribution of moderatetohigh stable. Influence of different methods of fertilizer application. This document provides an overview of baseline biological information relevant to risk assessment of genetically modified forms of the species that may be released into the. Size dependent effects of antifungal phytogenic silver nanoparticles on germination, growth and biochemical parameters of rice oryza sativa l, maize zea mays l and peanut arachis hypogaea l.
Tools sequence analysis tools accessed from the genome context view menu use the current genomic region as input. It possesses over 32,000 genes on ten chromosomes with a genome size of 2. Patterns of dna sequence polymorphism along chromosome 1. I consider these two assertions as positive, in spite of the contrary opinion of some authors, and the doubts of the celebrated agriculturist bonafous, to whom we are indebted for the most complete treatise. An experiment was conducted at the agronomic research area, university of agriculture, faisalabad, during autumn 2011 to determine the response of maize to foliar application of boron under water stress conditions. Maize is thought to have originated 5570 million years ago in what is now central or south america and has since diversified into nearly 10 000 nondomestic relatives. February 21, 2020 the usdaagricultural research service carried out a water productivity field trial for irrigated maize zea mays l. Chlorophyll fluorescence as a selection tool for cold. 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. Poaceae update for itis, in cooperation with natureserve, and based on the catalogue of new world grasses database and other sources.
The identification and mapping of maize genes and quantitative trait loci qtl associated with virus resistance in maize zea mays l. China 2 national key laboratory of crop genetic improvement and national centre of plant gene. Grain find, read and cite all the research you need on researchgate. Despite this fact, african farmers have been harvesting average grain yield of not more than. Introduction corn, commonly known as maize zea mays l. Maize is not only a major cereal crop in the present day world but it. Family poaceae on the properties of soil perera, k. Many forms of maize are used for food, sometimes classified as various subspecies related to the amount of starch each has. In addition, there are some fungi that attack maize kernels and produce toxins mycotoxins that are harmful to humans and animals, and cause substantial direct and indirect economic. Maize milling technologies food fortification initiative. The study was carried out during kharif season of 2014 and. Laboratory, greenhouse and field studies were undertaken to investigate the status of cu and zn and to find out whether the addition of these nutrient elements in soils would increase maize grains and yield components and also, remediate their constraints in coastal plain sand derived soil of southeastern nigeria, for optimization of maize zea mays l.
Product extraction rates from dehulling whole grain. The leafy stalk of the plant produces pollen inflorescences and separate ovuliferous inflorescences called ears that yield kernels or seeds, which are fruits. Usdaars colorado maize water productivity dataset 20082011 metadata updated. Functional uses cosmetic ingredient for skin conditioning. The present investigation was carried out to study area, production and productivity trends and growth rates of maize zea mays crop grown in panchmahal region of gujarat state, india for the period 194950 to 200708 based on parametric and nonparametric regression models. The annual teosinte variety called zea mays mexicana is the closest botanical relative to maize. Density on morphophysiological and yield parameters in bali, north west region of cameroon download download pdf.
Outside the zea genus, the closest wild r elatives are from the genus tripsacum. Identification of a maize zea mays chitinase allele. However tassel size and presumably pollen production varies across environments. Sep, 2014 ishida y, saito h, ohta s, hiei y, komari t, kumashiro t 1996 high efficiency transformation of maize zea mays l. Based on previous editions produced by cimmyt maize. Integrated, nutrient, management, maize, zea mays abstract. Maize is a staple food crop for millions of africans. Shared genetic control of root system architecture between.
Maizegdb is a communityoriented, longterm, federally funded informatics service to researchers focused on the crop plant and model organism zea mays. It comes after wheat and rice in terms of world importance. Corn is the most efficient plant for capturing the energy of the sun and converting it. A better understanding of the genetic basis of quantitative variation in maize will improve predictive crop genetics. K department of botany, open university of sri lanka, nawala, nugegoda, sri lanka abstract maize or corn zea mays l. Materials and methods publicly available maize zea mays l. Maize zea mays, linnaeus maize is of american origin, and has only been introduced into the old world since the discovery of the new. Jan 09, 2020 update maize b73 reference genome by single molecule sequencing technologies. Christopher colombo encounters that maize was cultivated in.
Figure 1 shows a phylogenetic tree of grass species related to maize. The genetics of virus resistance in maize zea mays l. A field study entitled effect of integrated nutrient management on maize zea mays l. Maize is also recognized by different synonyms such as zea, corn, silk corn etc. The possibility of using quenching analysis of chlorophyll a fluorescence as a selection tool for improving the cold tolerance of maize was investigated in six genotypes differing greatly in the ability to develop a competent photosynthetic apparatus at low temperature. In maize zea mays, the majority of the root mass is found in the top 0. Maize plots were fertilized with 46kgh p as dap and 23kgha n as urea before sowing and, additional 23kgha n was applied.
A study on the impacts of corn cultivation zea mays l. Maize, inmfld, extension gap, technological gap, technology index, yield, economics. Application of regression models for area, production and. You can copy, download or print oecd content for your own use, and you can. Growth and yield responses of three sweet corn osf. It is a cereal grain which was first grown by people in ancient central america. Lets work together to see more people have access to the crop biotech update cbu and other isaaa materials. Contributions of zea mays subspecies mexicana haplotypes to. Cell walls play an important role in the structure and morphology of plants as well as stress response, including various biotic and abiotic stresses. Pdf physiological and biochemical response of maize zea.
Lowole2 1department of agricultural engineering and land planning, sokoine. Although a food staple in many regions of the world, most is used for animal feed and ethanol fuel. Our perceptions and conceptions regarding the roles and importance of maize to ancient economies is largely a product of scientific research on the plant itself, developed for the most part out of botanical research, and its recent role as one of the most important economic. In egypt, maize is considered as one of the main cereal crops, comes the third after wheat and rice.
This mass of roots has been referred to as the root crown trachsel et al. However, little of this maize is eaten directly by humans. Artificial chromosome formation in maize zea mays l. A genomewide analysis of the cellulose synthaselike csl. Our perceptions and conceptions regarding the roles and importance of maize to ancient economies is largely a product of scientific research on the plant itself. The basic concept underlying the principles of integrated nutrient management inm is the maintenance and improvement of soil fertility for sustaining crop productivity both quantity and quality wise.
For each locus, we sequenced a common sample of 25 individuals representing 16 exotic landraces and nine u. Zea mays maize has the highest worldwide production of all grain crops, yielding 875 million tonnes in 2012. While much of the disadvantage of growing maize after maize can be overcome by applying n fertilizer, it is not possible to apply enough n to eliminate completely the yield difference between rotational and continuous maize. Nutritional, medicinal and economical importance of corn. Genes or major qtl for resistance to maize dwarf mosaic virus mdmv, sugarcane mosaic virus scmv, wheat streak mosaic virus wsmv, maize mosaic virus, maize streak virus, high plains virus and. Maize genetics cooperation newsletter online edition. Ishs ii international symposium on organic matter management and compost use in horticulture growth and dry matter yield of maize zea mays l. Yielding and growth parameters of maize zea mays l.
Using zea mays pollen to introduce undergraduate students to the dynamic development of pollen tubes within an introductory biology laboratory curriculum. Maize zea mays l is the most important and most widely distributed cereal in the world after wheat and rice. This research was conducted to better understand if variation in pollen production is due to stress during initiation of specific pollen production components. It still grows in the wild as an annual in mexico and guatemala.
It is now the third most important cereal crop in the world. Although the comprehensive analysis of genes involved in cellulose synthase have been performed in model plants, such as arabidopsis thaliana and rice, information regarding cellulose synthaselike csl genes in maize is extremely limited. The 62nd annual maize genetics meeting will be held on march 1215, 2020, at the sheraton kona, kailuakona, hawai. The name maize is derived from the arawakcarib word mahiz.
Submitted dec2015 to the emblgenbankddbj databases the b73 maize genome. Root zone soil moisture redistribution in maize zea mays. It is therefore necessary to know the genetic characteristics maize usually grown in benin. Plants were seeded in widenarrow rows pattern, with wide and narrow rows spaces of 60 and 30 cm, respectively. Springer nature is developing a new tool to find and evaluate protocols.
Despite decades of research by botanists, molecular biologists, and archaeologists, the origin and early history of maize remain controversial 1 5. Your donation will ensure that information remains available for free to people from the developing world who need it most. Zea mays, more commonly referred to as maize, is a member of the grass family poaceae, or true grasses. Maize production, economic analysis, peasant farmers. Maizegdb is a founding member of agbiodata, a consortuim of agriculturerelated online resources which is committed to making agriculturerelated research data fair. We measured sequence diversity in 21 loci distributed along chromosome 1 of maize zea mays ssp. Successful maize production depends on the correct application of production inputs that will sustain the environment as well as agricultural production.
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