864 Articles found
Soil Science Society of America (SSSA) Articles
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Breeding maize for a bioeconomy: a literature survey examining harvest index and stover yield and their relationship to grain yield
The use of maize (Zea mays L.) stover as a feedstock for cellulosic biofuels production will create demand for maize hybrids with greater stover yield. It is expected that grain yield will remain the most critical trait and continue to drive hybrid ...
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Validation of molecular markers associated with net blotch resistance and their utilization in barley breeding
With the advancement of molecular marker technology and computer software, mapping quantitative trait loci (QTL) for complex traits in agricultural crops is frequent; however, exploitation of these QTL in practical breeding programs is limited. Here ...
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Varietal differences and morphology of cleistogamy in soybean
Cleistogamy, the production of open (chasmogamous, CH) and closed (cleistogamous, CL) floral forms by one species, is present in soybean [Glycine max (L.) Merr.]. Soybean cultivars that originated from high latitudes generally have a strong tendency ...
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Genotypic variation in peanut for transpiration response to vapor pressure deficit
Conservation of soil water resulting from decreases in stomata conductance under atmospheric high vapor pressure deficit (VPD) conditions is a possible approach for enhanced tolerance of water deficit by crops. Water deficit is usually a concern in ...
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Spectral water indices for assessing yield in elite bread wheat genotypes under well-irrigated, water-stressed, and high-temperature conditions
The objective of the present work was to determine the relationship between spectral reflectance indices (SRI) and yield in spring wheat (Triticum aestivum L.) in NW Mexico in three environments (irrigated, water-stress, and high-temperature). The ...
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Hormonal changes caused by the xenia effect during grain filling of normal corn and high-oil corn crosses
The xenia effect results from the cross-fertilization of nonrelated lines of crops, which causes a grain to produce a germ or embryo that is much larger than average. It is a significant genetic component in TopCross grain production systems, which ...
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Fine root distributions in oilseed and pulse crops
Fine roots are of great importance in the uptake of water and nutrients from, and input of, carbon to the soil. This study determined the proportion of extra fine (0.4 mm contributed a small proportion to the total. For pulses (Cicer arietinum L. ...
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A model to predict diurnal pollen shed in maize
We have developed a mathematical model to predict the diurnal pattern of maize (Zea mays L.) pollen shed on the basis of local meteorological conditions. Our goal is to improve simulations of maize pollen dispersion that have typically released ...
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Green tea catechins applied to susceptible hosts inhibit parasitic plant attachment success
Parasitic plants utilize cell wall degrading enzymes (CWDEs) to penetrate their host plant and attach to host vasculature. Inhibition of CWDEs may confer resistance on susceptible hosts, offering a strategy for parasitic plant control. Here, ...
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Probability of yield response to inoculants in fields with a history of soybean
Inoculants containing Bradyrhizobium japonicum are available for soybean [Glycine max (L.) Merr.] production but may not be necessary in fields where soybean previously has been produced. The objective of this study was to determine yield response ...
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Corn morphology, mass, and grain yield as affected by early-season red: far-red light environments
The spatial arrangement among plants affects both vegetative and reproductive meristem development. More axillary meristems develop at lower plant densities, which are associated with relatively high red:far-red light ratios (R:FRs; 645:735 nm). ...
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Grain yield performance of selected lowland NERICA and modern asian rice genotypes in West Africa
Six lowland experiments were conducted over three years in southern Benin to assess yield differences in 28 rice (Oryza spp.) genotypes grown under nonfertilized and fertilized conditions. These included the interspecific hybrids, the lowland New ...
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Spatial mapping of complex turfgrass sites: site-specific management units and protocols
Site-specific management units (SSMUs), similar in soil, plant, and irrigation requirements, are foundational to efficient management in precision agriculture. This concept is applied to management of complex turfgrass sites to improve irrigation ...
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Optimizing dosages of seaweed extract-based cytokinins and zeatin riboside for improving creeping bentgrass heat tolerance
Seaweed (Ascophyllum nodosum Jol.) extract-based cytokinins (SWEC) have been used to improve turfgrass stress tolerance, but optimum dosages for improving creeping bentgrass (Agrostis stolonifera L.) heat tolerance are lacking. This study was ...
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Variability for freezing tolerance among 42 ecotypes of green-type annual bluegrass
Limited information exists on the extent of genetic variability for freezing tolerance among perennial biotypes of annual bluegrass (Poa annua L.) that evolved under golf greens management. We characterized the freezing tolerance of 42 ecotypes ...
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Seed yield, development, and variation in diverse poa pratensis accessions
Post-harvest residue removal is critical for high seed production of Kentucky bluegrass (Poa pratensis L.). Previous work showed some accessions have little yield reduction with mechanical removal of post-harvest residue compared with the ...
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Cool-season turfgrass colony and seed survival in a restored prairie
Nonnative cool-season turfgrasses are sometimes considered to be invasive species in restored prairies. The method of their invasiveness is poorly understood, as in many cases prairie restoration projects occur where the grasses were formerly ...
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Relationship between water-soluble carbohydrates in fall and spring and vigor of spring regrowth in orchardgrass
To clarify relationships among factors associated with winter stress in orchardgrass (Dactylis glomerata L.), water-soluble carbohydrate (WSC) concentration, resistance to snow mold, and tolerance to prolonged snow cover were evaluated under both ...
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Fatty acid profiles of orchardgrass, tall fescue, perennial ryegrass, and alfalfa
Recent research shows that the meat from beef animals finished on pasture has greater concentrations of omega-3 fatty acid (FA) and conjugated linoleic acids (CLA) compared with animals finished on high-concentrate diets. However, little is known ...
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Putative Seedling Ferulate Ester (sfe) maize mutant: morphology, biomass yield, and stover cell wall composition and rumen degradability
Ferulate cross-linking of lignin to arabinoxylan contributes to poor cell wall degradability of grass forages. We hypothesized that reduced ferulate ester deposition will result in formation of fewer ferulate cross links and improved degradability. ...