Crop improvement

Xem 1-20 trên 108 kết quả Crop improvement
  • Tuyển tập các báo cáo nghiên cứu về y học được đăng trên tạp chí y học Minireview cung cấp cho các bạn kiến thức về ngành y đề tài: Applying plant genomics to crop improvement...

    pdf2p thulanh20 10-11-2011 17 1   Download

  • This paper aims to assess the present situation of English pronunciation students of Agriculture University in Hanoi and suggests some specific methods to improve students' pronunciation. Fact that most students are not interested in the pronunciation until they have trouble speaking English correctly and the difficulty in listening to English tapes. Furthermore, they only imitate others pronounce that they claim that they speak English better.

    pdf6p thulanh2 07-09-2011 70 14   Download

  • Due to their usefulness in characterizing and manipulating genetic factors responsible for qualitative as well as quantitative traits,molecularmarkersareconsideredto be valuable tools for crop improvement. Theseusesofmolecularmarkershavebeen invaluable in helping researchers understand complex traits, dissect them into singleMendeliangeneticfactors,andestablishtheirchromosomallocationsviatheuse oflinkagemapsand/orcytogeneticstocks.

    doc47p ngovanquang12c3 17-12-2010 67 8   Download

  • To establish a forest pest and disease database reference collections. Two. To provide training in forest health monitoring, damage assessment, pest risk analysis, collection, preservation, identification and Curation. 3. To establish and equip a network of experimental observations FSIV center based on additional regional centers Department of Crop Protection.

    pdf0p xau_la 09-02-2012 35 9   Download

  • The work of the dry-farmer is only half done when the soil has been properly prepared, by deep plowing, cultivation, fallowing, for the planting of the crop. The choice of the crop, its proper seeding, and its correct care and harvesting are as important as rational soil treatment in the successful pursuit of dry-farming. It is true that in general the kinds of crops ordinarily cultivated in humid regions are grown also on arid lands, but varieties especially adapted to the prevailing dry-farm conditions must be used if any certainty of harvest is desired. Plants possess a marvelous power...

    pdf18p asus1122 24-10-2012 27 5   Download

  • The acre-yields of crops on dry-farms, even under the most favorable methods of culture, are likely to be much smaller than in humid sections with fertile soils. The necessity for frequent fallowing or resting periods over a large portion of the dry-farm territory further decreases the average annual yield.

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  • We are guests of green plants on this planet. Plants are a source of food, fiber, and materials for shelter. Ornamental plants contribute to our esthetic environment. Numerous plants are sources of pharmaceuticals. Our civilization developed progressively after the domestication of plants about 10 000 years ago. Since then plants were constantly improved through conscious and unconscious selection by ancient farmers for more than 9000 years. During the last century, crop improvement became a scientific endeavor after the rediscovery of Mendel’s laws of inheritance.

    pdf1460p bachduong1311 10-12-2012 34 2   Download

  • Every crop of the farm has been changed and improved in many ways since its forefathers were wild plants. Those plants that best serve the needs of the farmer and of farm animals have undergone the most changes and have received also the greatest care and attention in their production and improvement. While we have many different kinds of farm crops, the cultivated soil of the world is occupied by a very few. In our country the crop that is most valuable and that occupies the greatest land area is generally known as the grass crop. Included in the...

    pdf36p asus1122 24-10-2012 14 1   Download

  • Several agencies and organizations have intensified their efforts to increase the productivity of land in these countries.They have introduced new strains of seed, improved irrigation techniques, and introduced new methods of fertilization and soil management.With ample sunlight for photosynthesis and modern irrigation techniques, sustainable farming techniques should allow farmers to boost aggregate production in order to meet demand.

    pdf223p thanhan 22-07-2009 800 459   Download

  • Documents and reflects on the steps that researchers are taking to implement social and gender analysis, including questions of class, caste, and ethnicity, into their everyday work. Combines both learning experiences and scientific results, representing academic and nonacademic sectors, a variety of research organizations, and a number of natural resource management questions, including biodiversity conservation, crop and livestock improvement, and sustainable grassland development.

    pdf251p huetay_1 28-02-2013 50 28   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 87 12   Download

  • Biofuels such as bioethanol are becoming a viable alternative to fossil fuels. Utilizing agricultural biomass for the production of biofuel has drawn much interest in many science and engineering disciplines. As one of the major crops, maize offers promise in this regard. Compared to other crops with biofuel potential, maize can provide both starch (seed) and cellulosic (stover) material for bioethanol production.

    pdf7p nguyenngocsonctu 30-11-2010 51 11   Download

  • he goal is to provide tools for leaders to improve both the environmental performance and overall competiveness by reducing materials, energy and water utilization. Section 5 are papers related to sustainable environment: all aspects of ecosystem for sustainable development, ecological assessment and sustainability for the environment.

    pdf288p samsungwifi 09-04-2012 43 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 49 13   Download

  • Soil fertility is critical for the provision of adequate food, fiber and renewable natural resources(fuel,wood etc.). In the developing world soil fertility is linked to economic well being of many farm families. Poor soils means poor harvest leading to low returns for the over 60% of the population of developing countries relying on agriculture for survival.Use of inorganic and organic fertilizers in addition to biological processes to improve the fertility of the soil requires good understanding of their practical use and management.

    pdf0p crius75 02-01-2013 42 11   Download

  • The basal food crop of the people of China, Korea and Japan is rice, and the mean consumption in Japan, for the five years ending 1906, per capita and per annum, was 302 pounds. Of Japan's 175,428 square miles she devoted, in 1906, 12,856 to the rice crop. Her average yield of water rice on 12,534 square miles exceeded 33 bushels per acre, and the dry land rice averaged 18 bushels per acre on 321 square miles. In the Hokkaido, as far north as northern Illinois, Japan harvested 1,780,000 bushels of water rice from 53,000 acres. In Szechwan province, China,...

    pdf24p asus1122 24-10-2012 41 8   Download

  • Permits may be required for parades, the sale and consumption of alcohol, pyrotechnics, and the sale of food items. Fire safety inspections should be required. Permission may also be required if it will be necessary to close certain adjacent or peripheral roads or streets. A permit may be required for the mass gathering itself. Most public sector agencies have adopted a “User Pays” policy for services provided at sporting and entertainment events.

    pdf67p nhacchovina 22-03-2013 27 8   Download

  • Protected cropping provides vegetable growers with an opportunity to enhance product quality and improve food safety. The overall objective of this project was to provide Vietnamese scientists and extension specialists with the training and tools to implement and foster regionally feasible improvements to current vegetable production practices and supply chains. This was achieved through: 1) greenhouse replicated experiments and demonstration trials in Northern, Central and Southern Vietnam; 2) four in-country workshops and 3) two Australian study tours for research and extension personnel.

    pdf23p tam_xuan 02-03-2012 38 9   Download

  • Tuyển tập báo cáo các nghiên cứu khoa học quốc tế ngành hóa học dành cho các bạn yêu hóa học tham khảo đề tài: Genetically modified crops safety assessments: present limits and possible improvements

    pdf10p sting05 09-02-2012 22 6   Download

  • The demonstration in the last chapter that the water which falls as rain or snow may be stored in the soil for the use of plants is of first importance in dry-farming, for it makes the farmer independent, in a large measure, of the distribution of the rainfall. The dry-farmer who goes into the summer with a soil well stored with water cares little whether summer rains come or not, for he knows that his crops will mature in spite of external drouth. In fact, as will be shown later, in many dry-farm sections where the summer rains are...

    pdf48p asus1122 24-10-2012 22 5   Download

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