Tuyển tập báo cáo các nghiên cứu khoa học quốc tế ngành y học dành cho các bạn tham khảo đề tài: DNA polymorphisms and haplotype patterns of transcription factors involved in barley endosperm development are associated with key agronomic traits
Tuyển tập báo cáo các nghiên cứu khoa học quốc tế ngành y học dành cho các bạn tham khảo đề tài: Polymorphisms in monolignol biosynthetic genes are associated with biomass yield and agronomic traits in European maize (Zea mays L.)
The wide geographical distribution of the rice
plant ( Oryza sativa L.) and its long history of
cultivation in Asian countries have led to the development
of a great diversity of varietal types.
Similarly, workers in various rice-growing countries
use different terms to designate identical
morphological and physiological characters, agronomic
traits, gene symbols, and cultural practices.
Whereas varietal diversity in germ plasm is desired
in rice breeding, variations in nomenclature hinder
scientific communication among the workers.
Soil fertility describes soil nutrient status and the factors controlling the supply of
nutrients to plants. Continued efforts to improve soil fertility are required to support
the world's growing demand for food, fiber, and renewable fuels. Important ecological
services provided by soils, such as biodiversity, buffering capacity, and nutrient
recycling benefit from the amendments applied to sustain soil fertility. Those
amendments need to be applied in a manner that is both economical and practical for
the producer to achieve agronomic objectives that are environmentally sound.
This two-volume book on biomass is a reflection of the increase in biomass related research and applications, driven by overall higher interest in sustainable energy and food sources, by increased awareness of potentials and pitfalls of using biomass for energy, by the concerns for food supply and by multitude of potential biomass uses as a source material in organic chemistry, bringing in the concept of bio-refinery. It reflects the trend in broadening of biomass related research and an increased focus on second-generation bio-fuels.
Genetically modified foods and food products derived from genetically engineered
organisms are among a number of biotechnological developments intended
to improve shelf life, nutritional content, flavor, color, and texture, as well as
agronomic and processing characteristics. Although in popular parlance the term
genetically modified often is used interchangeably with genetically engineered,
in this report genetic modification refers to a range of methods used to alter the
genetic composition of a plant or animal, including traditional hybridization and
Due to their usefulness in characterizing
and manipulating genetic factors responsible
for qualitative as well as quantitative
be valuable tools for crop improvement.
invaluable in helping researchers understand
complex traits, dissect them into
Plants are sessile organisms and as such must have mechanisms to deal with both abiotic
and biotic stresses to ensure survival. The term “abiotic stress” includes many stresses
caused by environmental conditions such as drought, salinity, UV and extreme
temperatures. Due to global climate change it is predicted that abiotic stresses will increase
in the near future and have substantial impacts on crop yields (Intergovernmental Panel of
Climate Change; http://www.ipcc.ch).
5 Agronomic methods to control erosion
Agronomic methods include those erosion control measures that are related to arable farming. It is concerned with crop cultivation itself as well as tillage operations. Arable farming is an integral part of the natural surroundings.
The prevailing low food production in sub-Saharan Africa is an issue of
great concern especially since Africa south of the Sahara is the only remaining
region of the world where per capita food production has remained stagnant. This
chapter reviews long-term experiments in Africa in the context of shifting paradigms
related to tropical soil fertility management from fi rst external input paradigm right
through to the current Integrated Soil Fertility Management (ISFM) approach,
which is a culmination of the participatory methods developed along the paradigm
Increasing attention has also been given to
dissecting and understanding diversity in relation to genes underlying important agronomic
traits in a number of crops. Molecular phylogenetics and genetic diversity analysis can help
to clarify the taxonomic identity and evolutionary relationships of the wild relatives of crop
species. These methods can also help prevent misidentification and carefully plan effective
germplasm management strategies.
Soybean is the most important oilseed and livestock feed crop in the world. These dual uses are attributed to the crop's high protein content (nearly 40% of seed weight) and oil content (approximately 20%); characteristics that are not rivaled by any other agronomic crop. Across the 10-year period from 2001 to 2010, world soybean production increased from 168 to 258 million metric tons (54% increase).
Microorganisms are single-celled organisms are small, not observed with the naked eye but to use a microscope. The term microbial does not correspond to any taxon in scientific classification. It includes viruses, bacteria, archaea, fungi, microscopic algae, protozoa. Etc.
In India, rice, wheat and maize yields per hectare of land have increased three to
four fold between 1950 and 2010, mainly due to the adoption of improved agronomic
practices. Egg production now ranges between 310–320 per annum per bird. Similarly,
feed conversion efficiency in broilers is also at par with developed nations and Indian
poultry farmers are now more conscious of the need to increase profits by cutting costs
and improving productivity. Balancing of nutrients in poultry rations along with improved
mineral supplementation has led to this improved productivity.
J. Sci. & Devel., Vol. 10, No. 4: 576-585
Tạp chí Khoa học và Phát triển 2012 Tập 10, số 4: 576-585 www.hua.edu.vn
MUTAGENIC INDUCTION OF AGRONOMICAL AND YIELD CONTRIBUTING TRAITS IN SOYBEAN (GLYCINE MAX (L.) MERRILL) WITH GAMMA IRRADIATION
Vũ Đình Hòa*, Nguyễn Văn Giang Faculty of Biotechnology, Hanoi University of Agriculture
Thí nghiệm được tiến hành nhằm xác định ảnh hưởng của tia gamma với các liều lượng khác nhau (0, 15, 18, 21 kR) đến cảm ứng đột biến ở các giống đậu tương ĐVN6, ĐT12 và ĐT20.
This publication presents agronomic reasons which have led to the
development of controlled-release and stabilized fertilizers. The
characteristics, the advantages and the possible disadvantages of
controlled-release and nitrification/urease inhibitors are discussed.
Particular attention is given to problems of legislation, registration,
methodology and standardization.
Leading manufacturers and their product ranges are listed.
Until recent years, cultivars’ identification was based only on morphological and agronomic
traits. However, recognition of olive cultivars based on phenotypic characters revealed to be
problematic, especially in early stages of tree development. Traditionally diversity within
and between olive tree cultivars was determined by assessing differences in olive tree,
namely leaf shape and color, and olive fruits morphology.
Organic systems are more labor intensive
than conventional systems. This higher labor
requirement is most often attributed to the
increased time monitoring and managing pests.
Washington State research statistics indicate
that labor hours per acre can be as much as 11%
higher for agronomic crops. The increase can be
much greater for horticultural crops.
Organic crops can receive price premiums of
anywhere from 10% to 200% (or more) over
conventionally grown products, according to the
USDA Economic Research Service.
Demand for organically produced food products is increasing rapidly in North
America, driven by a perception that organic agriculture results in fewer negative
environmental impacts and yields greater benefits for human health than conventional
systems. Despite the increasing interest in organic grain production on the Canadian
Prairies, a number of challenges remain to be addressed to ensure its long-term
sustainability. In this review, we summarize Western Canadian research into organic crop
production and evaluate its agronomic, environmental, and economic sustainability. ...