Articles tagged with Maize
Researchers found that the soil in Chaco Canyon could not support farming due to scarce rainfall and destructive flash floods. The team calculated that only 100 acres of farmland would have been sufficient to feed a maximum of 1,000 people.
An increase in elite Maya's preference for a maize-based diet made the population more vulnerable to drought, contributing to its societal collapse. The study found that a less flexible and less resilient system resulted from population expansion, agricultural intensification, and socially conditioned food preferences.
Biofortification, a process of developing micronutrient-dense staple crops through breeding and biotechnology, is being used to address global nutrition issues. Provitamin A-biofortified maize has been shown to be an effective source of vitamin A, while zinc-biofortified wheat varieties have reduced pneumonia and vomiting rates in youn...
Researchers elucidate genetic isolation mechanisms that prevent hybridization between maize and teosinte, enabling two distinct species to form. A specific gene cluster, Tcb1-s, plays a crucial role in this process.
Researchers found that climate extremes account for 18%-43% of yield fluctuations in staple crops like maize and spring wheat. Temperature, rather than precipitation, plays a significant role in predicting crop yields.
A team of scientists has identified a novel lignin gene, Zm4CL1, that controls the maize bm5 mutant with reduced lignin content. The study reveals increased forage digestibility and cell wall saccharification efficiency in the bm5 mutant.
Researchers at Cold Spring Harbor Laboratory identified a relationship between maize crop yield and genetic activity associated with the RAMOSA3 gene. The discovery suggests that the gene may be 'moonlighting' with a hidden activity controlling branching.
Listeria contamination in fattening pig feed can cause severe illness and death, researchers warn. A study found that anaerobic ensilaging conditions can suppress bacterial growth, highlighting the importance of proper feeding procedures.
The discovery of a vessel with an estimated 500 maize weevils offers insights into the cultivation and distribution of chestnuts, food in the Jomon era, and the spirituality of ancient Japanese people. Researchers found that maize weevils were a dominant pest in stored rice and grains during this period.
Researchers have discovered the oldest known plant virus, a 1,000-year-old virus from ancient corncobs at an Ancestral Puebloan ruin in Arizona. The discovery reveals that chrysoviruses can persist in plants for long periods and may confer potential benefits to the plant.
Researchers tested rats on GM maize MON 810 and NK603 for 6 months, using high-throughput biology techniques. No significant biological markers were found, and anatomic pathology examination revealed no alteration of organs. The study does not detect any harmful effects of the GMOs on rat health or metabolism.
Researchers found a predecessor of today's corn plants, still bearing wild ancestor features, was brought to South America from Mexico over 6,500 years ago. Farmers improved the crop in Mexico and the Amazon until it was fully domesticated, challenging previous single-origin theories.
A new study reveals southwestern Amazonia as a secondary improvement center for early maize, contradicting previous understanding of its history. The analysis of ancient grains' genetic heritage provides insight into human-mediated evolutionary processes that led to one of the world's most important staple crops.
A study in Central America, Africa, and Asia finds that implementing simple climate-resilient strategies can increase yields, benefit the environment, and increase farmer income. The research proposes site-specific techniques, such as crop rotation and organic fertilization, which have estimated rates of return ranging from 17% to 590%.
Researchers have identified a methyltransferase enzyme that enables wheat plants to adapt their defense response to different herbivores. The discovery reveals the multifunctional role of benzoxazinoids in regulating defense mechanisms, including the regulation of callose production to block aphid feeding.
Researchers found that farmers have adapted to climate change by adjusting planting practices and using longer maturing varieties. This shift has increased maize yield trends by 28% since 1981, but it remains unclear if these benefits will be maintained in a hotter environment.
Researchers found that US maize has seen a yield increase of around 28% since 1981 due to beneficial changes in weather and farming practices. The study attributes this growth to warmer temperatures allowing for earlier planting and more favorable conditions.
A European team of scientists investigated the impact of heat and drought on maize and winter wheat yields under climate change. They found that drought poses a greater threat to maize than heat stress, with yield losses expected to increase due to changing climate conditions.
Researchers examined farming practices' impact on European maize yields under climate change and found optimal flowering times could mitigate effects. Optimizing crop cycle durations increased yields by 4-7% in projected 2050 climate conditions.
A team of researchers has successfully engineered a more productive corn variety that can better cope with future climates. By increasing the enzyme Rubisco, which captures CO2 from the atmosphere, they achieved a 15% improvement in crop biomass and CO2 assimilation.
A new study projects a 50-100% increase in pest-induced crop losses in European wheat and 30-40% increases in North American maize, even with reduced greenhouse gas emissions. Insect population growth is expected to be fueled by warmer temperatures, leading to significant pressure on grain producers.
The study reveals that the rootworm uses specific iron complexes formed at the root surface when benzoxazinoids bind to iron to guide itself to nutrient-rich crown roots. This allows the insect to severely damage maize plants and undermine plant breeders' efforts to control it.
A large-scale field study identified 143 heritable microbes and a core rhizosphere microbiome consisting of seven operational taxonomic units within the Proteobacteria phylum. This study contributes to understanding the relative importance of plant genetics, environment, and time in shaping microbial communities.
A study identified 143 species-level taxa associated with plant genotype, regardless of environmental factors. This finding suggests heritable microbes could be selected for beneficial traits in plant breeding.
Researchers identified four varieties of high-protein corn that are also resistant or tolerant to the parasitic plant Striga, a major challenge for small-scale farmers in sub-Saharan Africa. These varieties will improve food security and nutrition by allowing farmers to continue growing corn in areas affected by Striga.
Climate change could lead to increased global maize yield variability, particularly in the US, Europe, and Africa. Aggressive carbon dioxide emissions mitigation and heat-tolerant crop breeding are crucial to mitigate these effects.
Climate change will dramatically increase corn crop yields' variability, leading to price hikes and global shortages. This threatens food security, particularly for poor consumers.
A new study evaluated 101 commercially available elite corn hybrids for their yield stability and crop-management adaptability. The researchers found that hybrids with stable yields under varying conditions are less responsive to environmental factors, while those with high adaptability yield well in optimal conditions but may perform ...
Historian J. Michael Francis discovered a 1601 gunpowder expenditure list from St. Augustine that confirms the city's residents held a St. Patrick's Day procession in honor of San Patricio, the Spanish name for St. Patrick. The records also reveal that St. Patrick was identified as the patron saint of the city's maize fields.
A study found that half of pink-footed geese migrating to Denmark now stay for the winter, exploiting maize crops. This change is driven by increasing food availability, which may lead to agricultural conflicts and air traffic issues.
Researchers from Rothamsted Research introduce a rice gene that regulates sucrose accumulation in kernels, leading to increased productivity in maize even under drought conditions. The transgenic maize also improves rates of photosynthesis, resulting in more sucrose production for additional kernels.
Researchers found that hybrid offspring have significantly more active genes than their parent plants, leading to increased yield. This discovery may help breeders create even more productive maize varieties in the long term.
Researchers at University of Illinois create new maize growth model by integrating features from Community Land Model and Agricultural Production Systems sIMulator. The new model can simulate crop yields with improved accuracy and mechanism, correcting deficiencies in the original CLM model.
Researchers have identified regions of the genome contributing to resistance against western corn rootworm, with ascorbate biosynthesis and nematode-attracting compounds implicated in the process. The study's findings offer hope for developing native resistance mechanisms into elite hybrids without using transgenics.
Researchers discovered that the western corn rootworm sequesters and activates plant toxins to evade nematode attacks. This strategy makes biological control methods ineffective, leaving farmers with limited options.
Researchers uncover DNA methylation marks that silence genes in corn, impacting trait expression and breeding. The study improves understanding of non-Mendelian inheritance mechanisms, shedding light on the disappearance of desired traits in crops.
A breakthrough discovery has been made by suppressing the aflatoxin-producing fungus in groundnut, significantly improving food safety. The research, published in Plant Biotechnology Journal, has potential to contribute to food security in under-developed countries.
New research has identified genes controlling vitamin E content in maize grain, a finding that could lead to improving the nutritional profile of this staple crop. Six genes were discovered to encode proteins contributing to antioxidant compounds called tocochromanols, also known as vitamin E.
Researchers at UC Davis and Cold Spring Harbor Laboratory have mapped the 'jumping genes' of maize, identifying transposable elements that regulate gene expression and impact plant traits. The new genome sequence enables a deeper understanding of the complex relationships between these elements and the diversity of the genome.
The University of Arizona Center for Integrative Medicine launched an online curriculum to train family medicine residents in integrative medicine. The 200-hour program improved residents' medical knowledge and clinical utility, with a high completion rate despite busy schedules.
Researchers at Penn State have discovered that maize was sufficiently domesticated 4,300 years ago in Honduras, contrary to previous Mexico-based theories. The site's exceptional preservation and high-precision dating methods revealed larger cobs with more rows than typically found in Mexico.
Scientists analyzed ancient maize genomes to understand its adoption at high elevations. They found that desirable phenotypes were selected for by high-altitude farmers over thousands of years, rather than being introduced from modern-day Mexico.
Researchers at Boyce Thompson Institute have received a four-year DARPA award to develop insect-vectored viruses for disease-resistant maize. The project, titled Viruses and Insects as Plant Enhancement Resources (VIPER), aims to engineer genes into maize that can help combat disease, drought, and other yield-reducing stresses.
Researchers used mathematical modelling to understand new ways of combating maize lethal necrosis, an emerging disease affecting food security in sub-Saharan Africa. The study found that a combination of crop rotation, clean seed, and insect control is the best way to prevent loss of maize crop.
Researchers used mathematical modeling to understand maize lethal necrosis, a devastating plant disease in sub-Saharan Africa. The study found that rotating crops and controlling insects can provide effective disease control, but limited control is achievable by resource-poor farmers.
The new maize genome provides unprecedented detail on gene regulation and variation, enabling scientists to understand how the plant adapts to changing conditions. This knowledge has huge implications for breeding and expanding maize's growing range as climate change intensifies.
A team of researchers, led by Cynthia Bartel, conducted a field study to explore the compatibility of perennial groundcover grasses with maize. The study aimed to reduce the environmental harm caused by removing maize stover while increasing the benefits of renewable biofuels.
A recent study published in PLOS ONE analyzed 194 native Latin American maize populations, revealing three distinct geographic groups of maize in Mexico and four groups in South America and the Caribbean. The findings suggest that genetic variation in maize populations may reflect human migration patterns and agricultural development.
Researchers from VIB-UGent discovered a gene named PLA1 that significantly increases plant growth and seed yield in maize. This discovery can boost crop production in extreme weather conditions and offer harvest security even in a changing climate.
A study by Laurine Gilles and colleagues sheds light on the genetics behind haploid induction in maize, revealing the molecular identity of a key gene that promotes fertilization. The identification of 'Not Like Dad' is an important breakthrough to fully understand the process and translate this breeding tool to other crops.
A new study has identified over 1,000 genes in maize that enable crops to adapt to different latitudes and elevations. The researchers also found a strong link between flowering time and other traits, which could help speed up breeding efforts for maize under global climate change.
Researchers refuted the notion that Indian corn was cultivated hundreds of years before its widespread adoption at around 1000 A.D. in the American Bottom region. The study used accelerated mass spectrometry to directly date plant fragments, revealing that corn was not widely consumed until 900 or later.
A comprehensive computer simulation study confirms that climate change will substantially damage US crop yields, especially wheat, maize, and soybean. Increasing irrigation in regions with sufficient water can help mitigate the effects of global warming on crops.
A new study published in Journal of Medicinal Food found that blue maize extract improved systolic blood pressure, HDL cholesterol, and triglyceride levels in rats with metabolic syndrome. The natural antioxidants present in blue maize may help protect against cardiovascular disease, diabetes, and cancer.
Researchers have developed free online tools to improve crop breeding, including molecular breeding tools that enable breeders to select the best parental lines and perform marker-assisted backcrossing. These tools are being used in Africa to develop corn varieties with greater resistance to viruses.
Researchers sequenced the genome of a 5,310-year-old corn cob and found it was genetically more similar to modern maize than its wild ancestor. The study provides insights into the early stages of maize domestication and its dispersal across the Americas.
A 5,310-year-old maize cob genome provides new insights into the early stages of maize domestication, showing key genes affected by human selection. The ancient sample is genetically intermediate between teosinte and modern maize.
A new study found that vitamin A-biofortified orange maize significantly improves visual functions in children, particularly in night vision. The study used a portable device to measure pupil response and showed improved adaptability to low-light conditions within six months.
A new study found that soil organic matter and water holding capacity have a significant impact on maize yield stability, offering farmers a potential tool to support novel crop varieties. Implementing practices like cover crops and composted manures can help buffer against the effects of climate instability
Researchers found a vast array of previously unknown RNA transcripts and alternative splicing patterns, revealing new functional parts of the maize gene. This discovery has great importance for agriculture, as it can help breed corn to adapt to climate changes.