crop species Articles
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Accumulation and translocation of 198Hg in four crop species
The uptake and transport of mercury (Hg) through vegetation play an important role in the biogeochemical cycling of Hg. However, quantitative information regarding Hg translocation in plants is poorly understood. In this study, Hg uptake, accumulation and translocation in four corps rice (Oryza.sativa L.), wheat (Triticum L.), corn (Zea mays L.) and oilseed rape (Brassica campestris L.) grown ...
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Molecular genetic linkage map for allotetraploid colonial bentgrass
Interspecific hybridization is a widely used approach to improve crop species. We are pursuing the possibility of using interspecific hybridization between the turfgrass species colonial bentgrass (Agrostis capillaris L.) and creeping bentgrass (A. stolonifera L.) for the improvement of resistance to the fungal disease dollar spot (Sclerotinia homoeocarpa F.T. Bennett) in creeping bentgrass. From ...
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A survey of factors involved in crop maturity
The time necessary for crops to successfully complete reproduction is species and environment dependent. Lifecycles can be completed in a few weeks or take several years depending on the plant species. Crop development is divided into phenophases that are affected primarily by light and temperature changes, interacting with phytohormones. Some species are influenced more by light and others by ...
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Mining and harnessing natural variation: A little magic
The success of a breeding program depends on having adequate diversity in the germplasm. However, as advanced breeding stocks and materials are generated, one casualty is the diversity itself. As a result, breeding programs in many crop species have reached a point of diminishing returns and it is feared that unless new diversity is infused into the breeding germplasm, we face catastrophic ...
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Leaching and utilization of nitrogen during a spring wheat catch crop succession
An experiment covering a 2-yr spring wheat (Triticum aestivum L.) catch crop succession was conducted in lysimeters to account for the losses of N due to leaching. We sought to relate these losses to the N uptake of the main crop and to integrate the estimated N loss and uptake into a balance. The non-winter hardy catch crops [yellow mustard (Sinapis alba L.), Phacelia (Phacelia tanacetifolia ...
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Toxicity of biosolids‐derived triclosan and triclocarban to six crop species
Biosolids are an important source of nutrients and organic matter, which are necessary for the productive cultivation of crop plants. Biosolids have been found to contain the personal care products, triclosan and triclocarban, at high concentrations relative to other pharmaceuticals and personal care products. The current study investigates whether exposure of six plant species (radish, ...
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Chaff and straw spreader for a plot combine
Uniform distribution of crop residue is critical in long-term no-till and conservation-till cropping systems experiments. Many farm-scale combines utilize factory or aftermarket chaff and straw spreaders, but most plot combines for research lack this capability. We fabricated a high volume air system to evenly distribute chaff and straw behind a plot combine. The combine engine powered a ...
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Effects of low levels of herbicides on prairie species of the Willamette Valley, Oregon
The relative sensitivity of 17 non‐crop plant species from Oregon's Willamette Valley was determined in response to glyphosate, tribenuron methyl (tribenuron) and fluazifop‐P‐butyl (fluazifop) herbicides. For glyphosate; Elymus trachycaulus, Festuca arundinacea, Madia elegans, Potentilla gracillis and Ranunculus occidentalis were the most sensitive species, based on a concentration calculated ...
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O3 sensitivity in a potential C4 bioenergy crop: Sugarcane in California
The C4 perennial grasses have many potential virtues as bioenergy crops—high productivity and water use efficiency, multiyear crop cycle that minimizes replanting costs, and wide environmental adaptation. In the productive San Joaquin Valley (SJV) of California, these species also confront high levels of ozone (O3) air pollution. It is often assumed that C4 species will exhibit tolerance to O3, ...
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Nitrogen supply for cover crops and effects on peanut grown in succession under a no-till system
In Brazil, as no-till (NT) crop management expands, there is an increased interest in growing peanut (Arachis hypogaea L.) with this system. However, it is not known if the preceding cover crop species, the amount of straw on the soil surface, or the N supplied to the cover crop will affect peanut grown in a NT system. An experiment was conducted on a Typic Haplorthox in Botucatu, São Paulo ...
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Conservation versus conventional tillage on performance of three different crops
Conservation tillage, besides being more economical, prevents soil erosion and has other beneficial effects on our environment, but few studies have been conducted on differential responses of different crops to conservation tillage. The main objective of this study was to examine the interaction of tillage with crop species. Rainfed field experiments in a strip-plot design with four replicates ...
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Canola–Wheat intercrops for improved agronomic performance and integrated pest management
Intercropping can enhance yields and reduce pest infestations, but investigations of intercropping regimes using crop species common to the large-scale monoculture production systems of western Canada have not examined these diverse elements. Intercrops of canola (Brassica napus L.) and wheat (Triticum aestivum L.) were established at three sites in Alberta, Canada in 2005 and 2006 to determine ...
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Modified Atmosphere Packaging Gets a New QA Tool for Fresh-Cut Produce
Measuring only CO2 and O2 in Modified Atmosphere Packaging for produce leaves out an important key marker of produce freshness: Ethylene (C2H4). C2H4 production is a natural part of the plant life cycle, a complex hormone that varies not only between species, but from crop to crop of the same species. C2H4 has been called the plant “death hormone”, because as part of the natural ...
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Tie-ridge tillage for high altitude pulse production in northern ethiopia
Pulses including faba bean (Vicia faba L.), lentil (Lens culinaris Medic.), and field pea (Pisum sativum L.) are important components of the cropping systems of semiarid high-altitude northern Ethiopia. Yield potential is often constrained by severe water deficits during grain fill which might be alleviated by reducing runoff throughout the season using microbasin or tie-ridge tillage. Research ...
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No impact of DvSnf7 RNA on honey bee (Apis mellifera L.) adults and larvae in dietary feeding tests
The honey bee, Apis mellifera L. is the most important managed pollinator species worldwide and plays a critical role in pollination of a diverse range of economically important crops. Due to this species' importance to agriculture and its historical use as a surrogate species for pollinators to evaluate the potential adverse effects for conventional, biological and microbial pesticides, as ...
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McCree – photosynthetic active radiation
Institute of Life Science and Biology Department, Texas A and M University, College Station, Texas U.S.A. Spectral quantum yields The aim of these measurements is to provide a factual basis for a standard definition o f “photosynthetically active radiation”. The need for a standard definition has been repeatedly emphasized (e.g., GABRIELSEN, 1940; RABINOWlTCH, 1951, ...
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BB fertilizer production line
BB fertilizer production line BB fertilizer is a kind of compound fertilizer which is made up of several granular fertilizers in a certain proportion. In the process of mixing, there is no chemical reaction. It is a series of special fertilizers based on the principle of balanced fertilization, the results of soil nutrient test, crop species, yield index and different soil quality, such as ...
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Composting in the Subarctic – Design
Our Ideal Design The Actium Batch Compost Drum has become an essential tool for Fort Albany First Nation’s community garden. This article details why Fort Albany First Nation needed a composter and why the design of the Actium Batch Compost Drum suited our needs. Why was a composter needed in a remote subarctic community? Fort Albany First Nation (also known as Peetabeck) is a remote and ...
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Creating the Perfect Environmental and Atmospheric Conditions for Vertical Farming
The global population is rapidly expanding, and new technologies are required to enable us to keep up with rising food demands. Vertical farms provides a secure supply of food year-round while using minimal space, water, and energy. Creating the perfect environment, and especially the perfect CO2 atmosphere, in vertical farms is essential for optimizing crop yields and farm economics. ...
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Particulate matter dispersion and haze occurrence potential studies at a local palm oil mill
ABSTRACT: The emissions from palm oil industry through incineration and open burning are the major sources of air pollutions contribution in Malaysia. The consequence of increasing the particulate concentration, the particulate matter dissolves with vapour and grows into droplets when the humidity exceeds approximately 70% and causing opaque situation known as haze. This work focuses on the ...
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