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Agricuture News - November 2009 Archives
 | Iowa State University's Hank Harris has developed the only swine vaccine available for the H1N1 virus. The vaccine has been sent to protect a swine herd infected with the virus. The vaccination marks the first time vaccine has been sent to a swine herd diagnosed with the pandemic flu. ...> Full Article |
 | A US DOE and USDA study concluded that 50 million US acres of cropland, idle cropland, and cropland pasture could be converted from current uses to the production of perennial grasses, such as switchgrass, from which biomass could be harvested for use as a biofuel feedstock. Economically viable production of a perennial grass monoculture from which substantial quantities of biomass are removed annually is expected to require nitrogen fertilizer. ...> Full Article |
When asked to compare apples to apples, consumers said they would pay more for locally grown apples than genetically modified (GMO) apples. But in a second questionnaire consumers preferred GMO apples -- that is, when they were described, not as GMO, but as having a Reduced Environmental Impact. The research conducted by University of Illinois economist Michael Mazzocco and Augustana College marketing professor Nadia Novotorova demonstrated that product labeling makes a difference when it comes to consumer acceptance.
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A novel approach to classify the gender of six-week-old turkey poults could save millions of male chicks from being killed shortly after birth, according to Dr. Gerald Steiner from the Dresden University of Technology in Germany and his team. Their use of infrared spectroscopy to determine the gender of young birds shows that it is a fast and accurate method. The study has just been published online in Springer's journal Analytical and Bioanalytical Chemistry.
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 | Surplus biomass from the production of flax sheaves, and generated from Brassica carinata, a yellow-flowered plant related to those which engulf fields in spring, can be used to produce bioethanol. This has been suggested by two studies carried out by Spanish and Dutch researchers and published in the journal Renewable and Sustainable Energy Reviews. ...> Full Article |
In a research report in the November 2009 journal Genetics, scientists show how a family of genes (1-aminocyclopropane-1-carboxylate synthase, or ACS genes), in the weed Arabidopsis thaliana, are responsible for production of ethylene. This gas affects many aspects of plant development, and this information, which will be applicable to other plants, lays the foundation for future genetic manipulation that could make plants disease resistant, able to survive and thrive in difficult terrain, and increase yields.
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The time of day matters to forest trees dealing with drought, according to a new paper produced by a research team led by Professor Malcolm Campbell, University of Toronto Scarborough's vice-principal for research and colleagues in the department of cell and systems biology at the St. George campus.
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This study finds that certain wild flax plants growing in poor soils have succeeded in balancing the stress in their lives -- these plants are less likely to experience infection from a fungal pathogen. This is the first study to attempt to quantitatively explain how plants have evolved a specialization to serpentine soils and ultimately may help to explain floristic diversity in these unique environments.
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 | Scientists have long known that the offspring of two inbred strains tend to be superior to both their parents. Now, a team of researchers including a University of Florida geneticist has discovered clues to why that might be the case for one of the most important crops in the world: corn. ...> Full Article |
Continued improvement of climate forecasts is resulting in better information about what rainfall may look like months in advance. A researcher from North Carolina State University has developed an innovative water management framework that would take advantage of these forecasts to plan for droughts or excess rain in order to make the most efficient use of an area's water resources.
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Plants don't mind sharing space with their kin but when they're potted with strangers of the same species they start invigorating their leaves, a study by McMaster University reveals.
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Although plants have the ability to sense and respond to other plants, their ability to recognize kin and act altruistically has been the subject of few studies. The authors explored kin recognition in Impatiens pallida (yellow jewelweed). By moving their resources into leaves, these plants not only positively affected their own growth, but also negatively affected their competitors' growth. This is the first instance where researchers demonstrated that a plant's response to an aboveground cue is dependent upon the presence of a belowground cue.
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Using a wet ethanol production method that begins by soaking corn kernels rather than grinding them, results in more gallons of ethanol and more usable co-products, giving ethanol producers a bigger bang for their buck -- by about 20 percent.
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 | Conserving water and reducing the environmental impact of runoff are two important issues confronting container nursery operations. Current regulations in five states limit water consumption and/or nutrient concentrations in runoff. Researchers investigated whether irrigation scheduling based on daily water use (DWU) -- the combined loss of water from plant transpiration and substrate evaporation -- could conserve water. According to the study, "scheduling irrigation according to plant DWU substantially reduced the amount of irrigation applied." ...> Full Article |
 | Weeds are a widespread problem for the blueberry industry, particularly in young plantings when bushes are not fully established and most susceptible to competition. Weed control is even more of a challenge for growers of organic products, including organic highbush blueberry. Researchers investigated using mulches of pine needles, manure?sawdust compost, and seafood waste compost for weed control. Results indicate pine needles were the most effective mulch in suppressing weed growth. ...> Full Article |
 | Pecan trees have a tendency to bear fruit in cycles, producing a large crop in one or two years, followed by little or no crop. This cycle is the most profit-limiting biological problem facing producers. Georgia researchers who studied the effects of mechanical fruit thinning on pecan yield, nut quality, and profitability concluded concluded that increased profitability using mechanical fruit thinning results primarily from higher yields and prices in the OFF year of production. ...> Full Article |
 | Consumer interest in new and diverse types of garlic is on the rise. Fueled by factors including the growth of the "local foods" movement, interest in world cuisines, and widespread reports touting its numerous health benefits, demand for high-quality, locally grown garlic is increasing throughout the US. The results of a recent study of 10 garlic cultivars can help farmers identify niche regional markets and offer new, in-demand garlic varieties to consumers. ...> Full Article |
 | Poinsettia, a holiday favorite, is produced using plant growth regulators (PGRs) to achieve their desired height, but the high cost of PGRs, environmental use restrictions, and increasing pressure from consumers are driving researchers to explore new alternatives. Argentine researchers recently completed a study to determine if manipulation of red and far-red light ratios can be a successful alternative to the use of PGRs. Results indicate that the new approach is effective and environmentally beneficial. ...> Full Article |
 | Plant carotenoids are the most important source of vitamin A in the human diet and are considered to be valuable antioxidants capable of protecting humans from chronic diseases including macular degeneration, cancer and cardiovascular disease. Researchers investigating the carotenoid content of field-grown broccoli discovered that when it comes to breeding broccoli, lutein levels were linked to the plants' genetics; the environment in which the vegetables were grown had little effect on carotenoid production. ...> Full Article |
In collaboration with researchers at VIB-UGent and the University of Antwerp, scientists at the BioScience business group of Bayer CropScience AG in Gent have developed a technology that can significantly increase crop yields as well as make them more resistant to unfavorable growing conditions. It is based on selecting plants that make more efficient use of energy.
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 | Alternate bearing (biennial or uneven bearing) is the tendency of fruit trees to produce a heavy crop one year followed by a light crop or no crop the following "off-crop" year. Using "Pixie" mandarin (Citrus reticulata), researchers in California investigated when and how fruit perpetuate cyclic differences in floral intensity. Research has indicated that alternate bearing in citrus is due to a lack of flowering in the spring following a heavy on-crop year. ...> Full Article |
 | Many apple varieties common in the United States a century ago can no longer be found in today's orchards and nurseries. But some historic apple trees still survive in abandoned farmsteads and historic orchards throughout the US. Now, scientists interested in conserving these horticultural treasures have set out to identify and catalogue them, working to discover if the last remnants of historical trees may still be alive in American landscapes. ...> Full Article |
 | The transition zone can be one of the most challenging places to maintain high-quality turfgrass; changeable growing conditions in these regions often prove too hot or too cold. Finding turfgrass that thrives in these challenging environments can be perplexing for turf management professionals and homeowners alike. Bred for their ability to tolerate heat and drought, two hybrids "Dura Blue" and "Thermal Blue" were found to outperform traditional bluegrasses in transition zone areas. ...> Full Article |
 | Carotenoids, the family of yellow to red pigments found in pumpkins and tomatoes, plays an important role in human health by acting as sources of provitamin A or as protective antioxidants but identifying and quantifying carotenoids hasn't been simple. Florida researchers investigated whether color analysis can be used to predict carotenoid content. Results indicate the new method "will be successful, easy to implement, and inexpensive." ...> Full Article |
Something fresh is growing in Indiana. The number of farmers' markets in the state has increased at double the rate of other US states; between 1994 and 2004 the number of farmers' markets in Indiana increased by an impressive 222 percent. Researchers at Purdue have published an insightful study that identifies the reasons behind this unprecedented growth. The most important factors to customers included: the number of products available, cooking demonstrations and the number of vendors.
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 | Pecan, the most valuable nut tree native to North America. Effective management of the tree canopy is of vital interest to pecan growers, who commonly use pruning techniques to increase photosynthesis and flowering on trees. Researchers at Texas A&M University have provided baseline information relevant to improving management of the orchard light environment, and can be used by commercial pecan producers for developing new, effective canopy and crop management practices. ...> Full Article |
 | It's long been known that consumers choose apples based on fruit color. Apple producers recognize that clear days and cool nights are ideal growing conditions for apples to develop bright red colors. Scientists in Spain examined the effects of covering orchard floors with reflective films on fruit color, fruit quality, and profitability. The research showed that the use of films increased fruit size and color and can result in increased profits for apple growers. ...> Full Article |
 | Predictions of grape yields are extremely important to juice processors and wineries but until recently, forecasting yields has relied on expensive and labor-intensive hand-sampling methods. However, a new approach, Trellis Tension Monitor has been developed that works by detecting weight change on trellised grapevines as the vine and grapes grow. Using 10 commercial vineyards, researchers found that TTM produced more-accurate estimates of yield than previous methods. ...> Full Article |
 | Laser labeling of fruit and vegetables is used to "etch" information on produce, thereby eliminating the need for common sticker-type labels. The technology has been licensed for use on a variety of fruits and vegetables and is being used in New Zealand, Australia and Pacific Rim countries. Researchers in Florida who studied the impact of this new technology indicate the technology will offer the grapefruit industry a safe alternative to adhesive sticker labeling. ...> Full Article |
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Mint oil production moves south
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