Crop plants

Xem 1-20 trên 262 kết quả Crop plants
  • The genomics revolution of the past decade has greatly enhanced our understanding of the genetic composition of living organisms including many plant species of economic importance. Complete genomic sequences of Arabidopsis and several major crops, together with high-throughput technologies for analyses of transcripts, proteins and mutants, provide the basis for understanding the relationship between genes, proteins and phenotypes.

    pdf755p diennmri 19-09-2013 61 21   Download

  • Salinity stress negatively impacts agricultural yield throughout the world affecting production whether it is for subsistence or economic gain. The plant response to salinity consists of numerous processes that must function in coordination to alleviate both cellular hyperosmolarity and ion disequilibrium. In addition, crop plants must be capable of satisfactory biomass production in a saline environment (yield stability).

    pdf9p nguyenngocsonctu 21-11-2010 70 17   Download

  • Mechanisms of salt tolerance in halophytes: can crop plants resistance to salinity be improved? High concentrations of sodium are toxic to most plant species, making soil salinity a major abiotic stress in plant productivity world wide. Many crop species, which countless people rely for survival, are negatively affected.

    pdf11p nguyenngocsonctu 24-11-2010 89 12   Download

  • Tuyển tập các báo cáo nghiên cứu về lâm nghiệp được đăng trên tạp chí lâm nghiệp Original article đề tài: In situ measurement of leaf water use efficiency of lilac (Syringa vulgaris): comparison with crop plants...

    pdf5p toshiba9 12-10-2011 19 2   Download

  • Tuyển tập báo cáo các nghiên cứu khoa học quốc tế ngành y học dành cho các bạn tham khảo đề tài: Absorption and translocation to the aerial part of magnetic carbon-coated nanoparticles through the root of different crop plants

    pdf8p toshiba25 08-12-2011 19 2   Download

  • In the mid-1990s plant biotechnology burst onto the scene in world agriculture, beginning a second ‘green revolution’ and precipitating one of the great public debates of our time. Approximately a decade later, this book describes the impact of genetically modified (GM) crops on world agriculture, recent advances in the technology and the areas of research from which the next generation of GM crops is likely to emerge, as well as addresses the issues of safety and regulation that have dogged the technology, particularly in Europe.

    pdf307p codoc_pn87 24-11-2012 77 38   Download

  • Evidence grows daily of the rapid changes in climate due to human activities and their impact on plants and animals. Plant function is inextricably linked to climate and atmospheric carbon dioxide concentration. On the shortest and smallest scales the climate affects the plant’s immediate environment and thus directly influences physiological processes. On longer and larger time and space scales climate influ- ences species distribution and community composition and determines what crops can be viably produced in managed agricultural, horticultural and forestry ecosys- tems.

    pdf239p banhkem0908 24-11-2012 72 27   Download

  • Plant biotechnology Biotechnology: “the application of scientific methods to manipulate living cells or organisms for practical purposes.” Nabors; Chapter 14. “For centuries, humankind has made improvements to crop plants through selective breeding and hybridization — the controlled pollination of plants. Plant biotechnology is an extension of this traditional plant breeding with one very important difference — plant biotechnology allows for the transfer of a greater variety of genetic information in a more precise, controlled manner.” From Monsanto web page on biotechnology. ...

    pdf9p cuongcnsh53 14-03-2011 104 21   Download

  • The global annual potential bioethanol production from the major crops, corn, barley, oat, rice, wheat, sorghum, and sugar cane, is estimated. To avoid con/icts between human food use and industrial use of crops, only the wasted crop, which is de0ned as crop lost in distribution, is considered as feedstock. Lignocellulosic biomass such as crop residues and sugar cane bagasse are included in feedstock for producing bioethanol as well. There are about 73:9 Tg ofdry wasted crops in the world that could potentially produce 49:1 GL year−1 ofbioethanol.

    pdf15p nguyenngocsonctu 30-11-2010 75 19   Download

  • Since the publication of this book, in 1983, several new and exciting developments have taken place in the field of Plant Tissue Culture, and it now forms a major component of what is popularly called Plant Biotechnology. Many of the important crop plants which were then regarded as recalcitrant are now amenable to regeneration from cultured protoplasts, cells, and calli, enabling subjection of these crops to improvement by biotechnological methods of cell manipulation.

    pdf779p codoc_pn87 24-11-2012 50 19   Download

  • The purpose of this book is to provide the advances in plant in vitro culture as related to perennial fruit crops and medicinal plants. Basic principles and new techniques, now available, are presented in detail. The book will be of use to researchers, teachers in biotechnology and for individuals interested to the commercial application of plant in vitro culture.

    pdf220p camchuong_1 04-12-2012 54 20   Download

  • To meet the growing demand for safe vegetables, the assessment of understanding and awareness of risk producers of plant protection drugs increasingly are concerned, so that, with appropriate measures of hazards and reduce harmful levels of chemicals in the product. Therefore, this study was to assess the awareness of local people about the risks of plant protection drugs

    pdf13p thulanh2 07-09-2011 65 15   Download

  • Invasive alien plants are harmful non-native plant species whose introduction or spread threatens the environment, the economy, and society, including human health. They can be introduced into Canada from other countries or continents, or from one region of Canada to another. The current threats posed by invasive alien plants are real and growing. Why are invasive alien plants a problem? The economic cost of invasive alien plants to Canadians is enormous. Weeds in crops and pastures alone cost an estimated $2.2 billion annually.

    pdf22p lulanphuong 22-03-2012 41 16   Download

  • The most compelling and credible testimony to biotech crops is that during the 16 year period 1996 to 2011, millions of farmers in 29 countries worldwide, elected to make more than 100 million independent decisions to plant and replant an accumulated hectarage of more than 1.25 billion hectares – an area 25% larger than the total land mass of the US or China – there is one principal and overwhelming reason that underpins the trust and confidence of risk-averse farmers in biotechnology – biotech crops deliver substantial, and sustainable, socio-economic and environmental benefits.

    pdf30p nguyen_vu 28-11-2011 65 13   Download

  • Poverty is a severe problem in Africa, Asia, South America and even in pockets of the developed world. Addressing poverty alleviation via the expanded use of biological nitrogen fixation in agriculture was the theme of the 15th International Congress on Nitrogen Fixation.

    pdf353p tom_123 14-11-2012 50 14   Download

  • Ebook "Plant Biotechnology Current and Future Applications of Genetically Modified Crops" have content: part 1 the current situation, part 2 new development, part 3 safety and regulation.

    pdf307p nguyennuzenna 07-09-2014 29 12   Download

  • Plants play important role for human beings since the ancient times. Plants have their own whole different world which includes entire kingdom of life. Plants are the most essential part of organism in the world. Nobody can imagine any life without plants involved in their life. When humans started building colonies and getting civilized their dependency on plants increased by several folds. Today plants are even more important due to the increased demand of their different uses. During their development civilizations based on their use and growing cycle plants have been called crops...

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  • The heat radiation from gas flaring greatly affects the surrounding environment and particular crops planted within the vicinity of gas flare stations (Abdulkareem and Odigure, 2002). It also has a devastating effect on microorganisms and aquatic life. Heat radiation from gas flaring also causes an increase in heat waves hence there is the possibility that habitants of Niger-Delta Area, where the gas flaring stations are located will suffer heart stroke, heart attacks and other ailments aggravated by the heat (Odigure et al., 2003).

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  • In much of the world without artifi cial irrigation, the agricultural year can be divided into a crop production period followed by a post-harvest period. Crop production lasts for three months or more but the post-harvest period may stretch from the end of one growing season to the next, often at least six months. If there is only one rainy season then it may last for as long as ten months. In the European Union, intervention storage may last for several years.

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  • IN BOTH NATURAL AND AGRICULTURAL CONDITIONS, plants are frequently exposed to environmental stresses. Some environmental factors, such as air temperature, can become stressful in just a few minutes; others, such as soil water content, may take days to weeks, and factors such as soil mineral deficiencies can take months to become stressful. It has been estimated that because of stress resulting from climatic and soil conditions (abiotic factors) that are suboptimal, the yield of field-grown crops in the United States is only 22% of the genetic potential yield (Boyer 1982).

    pdf34p anhphuonggl 11-04-2013 56 7   Download

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