Three new varieties of tangerines – the TDE2, TDE3, and TDE4 – are the University of California’s most recent citrus varieties to be released for commercial production. The tangerines, which are complex hybrids, are siblings since they share the same parents. The varieties will be patented and eventually be given trademarked names. The three tangerines are large fruited compared to other varieties, have a sweet taste, and bear fruit with a deep orange rind.
“While the new tangerines share
Farmers growing corn in the mid-Atlantic region will have a new tool to help them identify appropriate cultural practices for the types of soils in their fields, thanks to research conducted by researchers from Virginia Tech and Colorado State University.
“Soils vary in their ability to hold water,” said Mark Alley, professor of crop and soil environmental sciences at Virginia Tech. “If a farmer knows the water-use efficiency of the soils in his field, he has a very important clue on how to mana
Researchers at the University of Wales, Aberystwyth (UWA) have developed a new rapid procedure which will enable food producers to detect the bacterial contamination of their meat products.
Their findings, published this week in Applied and Environmental Microbiology1 (Vol. 68, No.6 June 2002, p.2822 – 2828) demonstrate a novel analytical approach that can enhance and accelerate the detection of microbial spoilage, providing rapid, accurate and quantitative results in real time so that appr
Smithsonian scientist shows pollination by exotic honeybees increases coffee crop yields by more than 50 percent
Debunking the widely held belief that the self-pollinating shrub that produces the popular Arabica coffee bean has no use for insects, David W. Roubik of the Smithsonian Tropical Research Institute (STRI) in Panama has demonstrated that pollination – particularly by naturalized, non-native African honeybees – dramatically boosts the yield from shade-grown coffee plants.
Agricultural breeders have long observed that when plants or animals from different strains are interbred, the offspring tend to be stronger, healthier or generally more fit than either of their parents, although no one knew why this occurred. Now plant geneticists investigating the maize (corn) genome at Rutgers’ Waksman Institute of Microbiology have discovered a possible explanation for this phenomenon, known as heterosis or hybrid vigor.
The Rutgers findings, presented by research
A new approach without the controversial biotechnology used in GMOs
Rutgers geneticists have devised a new approach to create a more nutritious corn without employing the controversial biotechnology used in genetically modified foods. Instead of adding foreign DNA to the corn, the researchers increased the plant’s ability to produce more of its own naturally occurring protein by adjusting the genetic signals that control the process. The result is a more nutritious and natural fo
Pellets of rotting moths could keep weevils off oranges.
Mummified rotting cadavers could be a cost-effective way to combat soil pests, suggest scientists at the US Department of Agriculture. Citrus crops, cranberries and ornamental shrubs all stand to benefit.
Bacteria in the guts of roundworms grown inside dead wax moths can emerge to kill other soil insects, including the black vine weevil ( Otiorhynchus sulcatus ), a serious pest of plants in nurseries.
Th
Lepidopteran Tecia solanivora, an insect pest, is currently devastating potato crops in Latin and Central America. Equador is particularly badly hit. Known as the “Guatemala moth”, it spreads quickly. Indeed in 2000 the moth was found to have reached the Canary Islands. Since then it has been on the red list of the European and Mediterranean Plant Protection Organization (EPPO). The pest, if uncontrolled, is considered to be a major threat to potato crops throughout southern Europe. A research team f
Research, published in the online journal, BMC Biotechnology shows how researchers in Italy have used genetically modified eggplants made by the introduction of a gene that increases the level of the plant hormone indole acetic acid (IAA) to produce seedless fruits. Furthermore, these genetically modified eggplants are 30-35% more productive than conventional varieties in both greenhouse and field trials.
The public have a special liking for seedless fruits for two reasons, firstly seeds a
“Formulas from 1948 were being used.”
Monthly evaporation models, important for water management, can be improved by studying the dispersion of rain for each month. This is one of the conclusions in the research project of Marieke de Groen. She will defend her thesis on Monday the 29th of April. De Groen: “The subject was neglected for a long time. The monthly models contained formulas from 1948.”
Our main source of food – the agriculture sector – is very dependant on the we
How are animals fed and treated? In the aftermath of the mad cow and other food scare crises, European consumers are more and more concerned about “farm to fork” food safety and where their food comes from.
EU research can help improve animal breeding and living conditions. The European Commission discussed farm animal welfare research at European level with researchers and other stakeholders during a seminar held in Brussels yesterday. Participants addressed results achieved so far by EU-s
Researchers from the University of Warwick’s Department of Biological Sciences have found evidence that bovine tuberculosis remains in fields for up to 4 months. This means that long after an outbreak of bovine TB on a farm healthy cattle may still be exposed to the disease from pasture that had been used by infected cows any time in the previous 4 months.
University of Warwick researchers Professor Elizabeth Wellington and Jamie Young tested soil samples that they had exposed to bovine TB.
Research aimed at finding new diagnostic tests for BSE is gathering momentum at the Institute of Grassland and Environmental Research (IGER), where scientists have won a major research contract worth over £500,000 from the Department for Environment, Food and Rural Affairs (DEFRA).
`The new contract will help us expand our search for biochemical markers associated with BSE and scrapie,` said Professor Mike Theodorou, one of the leaders of the four-year programme. His colleague, Dr Gordon All
Tracing the source of a campylobacter food poisoning outbreak can be very difficult even with modern DNA fingerprinting methods. There is now evidence that campylobacters can rearrange their DNA, disguising their fingerprint, and confusing such detective work, scientists heard today (Tuesday 09 April 2002) at the spring meeting of the Society for General Microbiology at the University of Warwick.
Professor Diane Newell and her colleague Dr Anne Ridley of the Veterinary Laboratories Agency sa
Broccoli is one of western Europe`s most popular and widely consumed vegetables. However, its shelf life is restricted to about 5 days at room temperature, making distribution and storage of the product difficult. Recent research presented today at the Society for Experimental Biology conference in Swansea could help us understand the genetics of this situation and may even lead to `supervarieties` of broccoli.
The popularity of broccoli is on the increase and it is used increasingly in valu
Scots scientists are playing a key role in a major new research effort which could save Britain’s farmers millions of pounds a year through reductions in fertiliser and pesticide use.
Biotechnology experts at the University of Abertay Dundee, in partnership with two organisations in England, have been awarded £471,000 by the BBSRC (Biotechnology and Biological Sciences Research Council) for a three-year study into the relationship between white clover and a tiny insect.
White clove
Feedback
