Results:
56 publication requests found.
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Environmental Influences on the Drying Rate of Spray Applied Disinfestants from Horticultural Production Surfaces
Drying rates of disinfestants commonly applied to horticultural plant production surfaces were evaluated under cool to hot weather and under laboratory conditions to characterize the range of drying times and how this relates to contact times specified on product labels. Drying rates of six disinfes...
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Environmental Influences on the Evaporation Rate of Horticultural Disinfestants
The evaporation rate of disinfestants when sprayed on production surfaces is expected to vary under different weather conditions but it is unknown how that affects efficacy. This study is an initial investigation into how the evaporation rates of water and six commercial disinfestants that contain a...
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UVC (254 nm) and Far UVC (222 nm) irradiation affects in vitro growth of Colletotrichum sp. isolates and their infection of detached strawberry leaves.
Various alternatives are being developed to reduce or replace chemicals for plant disease control. We conducted laboratory studies to evaluate the effect of conventional UVC (245 nm) or FarUVC (222 nm) irradiation on growth of strawberry anthracnose pathogens in culture and on the disease response f...
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Intensity of supplemental greenhouse lighting affects strawberry plant growth, response to anthracnose infection, and growth of Colletotrichum pathogens in culture.
The effect of supplemental lighting on plant growth and response to anthracnose disease of strawberries was evaluated in two greenhouse trials, and their effect on the growth of strawberry anthracnose pathogens was evaluated in the laboratory. The objective of the greenhouse trials was to determine ...
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Nuclear DNA content and chromosome number determination in a Sahel medicinal plant, Combretum micranthum G. Don
Combretum micranthum G. Don, also known as kinkéliba, is native to West Africa where the plant grows wild as a shrub, liana, or tree and is valued for its numerous attributes including health and nutritional benefits. Despite this, genetic information commensurate to its economic value is lacking. T...
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Determination of genome size and chromosome number of a Ziziphus species (Z. mauritiana Lam.) from eastern Senegal
Ziziphus mauritiana Lam. is a widespread shrub or tree of the Sahel region where it grows wild and is used for various purposes including nutrition, medicine, and firewood. Current domestication programs focus on using the local species as rootstock for the improved imported Asian cultivars to provi...
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Additional nitrogen application reduced white drupelet disorder in ‘Sweetie Pie’ blackberry
White drupelet disorder in blackberry (Rubus subgenus Rubus) is an abiotic condition resulting from a genotype by environment interaction. While high temperatures and light intensities have been implicated, little is known why this disorder manifests. Other factors, such as overall plant stress, may...
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Higher renovation pruning height improves early yields of ‘Woodard’ rabbiteye blueberry
Rabbiteye blueberry bushes (Vaccinium virgatum Aiton) are relatively easy to grow and are commonplace across Mississippi;
however, if not properly cared for the bushes will decline over time. Eighteen old, unproductive ‘Woodard’ rabbiteye blueberry bushes were pruned at two different heights (ground...
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Higher renovation pruning height improves early yields of ‘Woodard’ rabbiteye blueberry
Rabbiteye blueberry bushes (Vaccinium virgatum Aiton) are relatively easy to grow and are commonplace across Mississippi; however, if not properly cared for the bushes will decline over time. Eighteen old, unproductive ‘Woodard’ rabbiteye blueberry bushes were pruned at two different heights (ground...
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Micropropagation of Hibiscus moscheutos L. ‘Luna White’: Effect of growth regulators and explants on nuclear DNA content and ploidy stability of regenerants
Hibiscus moscheutos L., also known as hardy hibiscus, is valued for its medicinal and ornamental attributes. It is usually propagated via seeds or cuttings. The purpose of this investigation was to develop a dependable micropropagation for H. moscheutos ‘Luna White’. To that end, the effect of four...
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Effect of LED, UV-B, and fluorescent supplemental greenhouse lights on strawberry plant growth and response to infection by the anthracnose pathogen, Colletotrichum gloeosporioides
Supplemental lighting is frequently used to extend day length for strawberries (Fragaria ×ananassa Duch.) grown in greenhouses and high tunnels; however, information is limited on the effect of these lights on disease development. We evaluated the effect of six supplemental light treatments [red, bl...
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Effect of LED, UV-B, and fluorescent supplemental lights on plant growth and fruit quality of strawberries grown in a greenhouse and on their infection by Colletotrichum spp.
Supplemental lighting is used to extend daylength for strawberries grown in greenhouses and high tunnels; however, information is limited on the effect of these lights on disease development and pathogen growth. We evaluated the effect of 6 supplemental light treatments (red, blue, white, and combi...
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Evaluation of detached strawberry leaves for anthracnose disease severity using image analysis and visual ratings
Inoculation of detached strawberry leaves with Colletotrichum species may provide an accurate, rapid, non-destructive method of identifying anthracnose resistant germplasm; however, the strength of any disease screening protocol depends on the reliability and validity of assessing disease severity. ...
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Characterization and pathogenicity of stem blight complex isolates associated with stem blight disease on Vaccinium species
Species of Botryosphaeria and Neofusicoccum are major pathogens of blueberry worldwide. Accurate identification of these species is essential for developing effective management practices. A multigene sequencing strategy was used to distinguish between six isolates collected from two different regio...
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UV-C irradiation technology: nonchemical disease and arthropod pest management
Despite the benefits of ultraviolet-C (UV-C) for controlling various diseases, this approach has been used sporadically under commercial situations. The damaging effect to plants at doses required to kill pathogens has limited its use. In 2011, in our initial studies, it was noted that an increase...
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Comparison of anthracnose resistance with the presence of two SCAR markers associated with the Rca2 gene in strawberry
Strawberry anthracnose is caused by a complex of three Colletotrichum species: C. acutatum, C. fragariae, and C. gloeosporioides. Molecular markers are being used in breeding programs to identify alleles linked to disease resistance and other positive agronomic traits. In this research strawberry ...
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High-frequency somatic embryogenesis, nuclear DNA estimation of milkweed species (Asclepias latifolia, A. speciosa, and A. subverticillata), and genome size stability of regenerants.
A high-frequency somatic embryogenesis was developed for three Asclepias species, A. latifolia (broadleaf milkweed), A. speciosa (showy milkweed), and A. subverticillata (horsetail milkweed) using gibberellic (GA3) and the amino acid L-proline. A somatic embryo initiation medium consisting of MS sal...
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Effect of Phosphorous Acid and Pruning Height on Renovated ‘Woodard’ Rabbiteye Blueberry
Phosphorous acid is a fungicide that may have other plant health-inducing properties. A previous study showed greater vigor in blueberry plants treated with phosphorous acid. In the current study, old, low-vigor ‘Woodard’ rabbiteye blueberries were selected for renovation in 2017. The bushes had not...
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Effect of Phosphorous Acid and Pruning Height on Renovated ‘Woodard’ Blueberry
Phosphorous acid is a fungicide that may have other plant health-inducing properties. A previous study showed greater vigor in blueberry plants treated with phosphorous acid. In the current study, old, unproductive ‘Woodard’ rabbiteye blueberries were selected for renovation in 2017. The bushes had ...
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Reaction of different vaccinium species to the blueberry leaf rust pathogen Thekopsora minima
Blueberry leaf rust caused by Thekopsora minima, is a serious threat to blueberry production. To investigate the host range and characterize new sources of resistance, 15 southern highbush accessions, two interspecific hybrids (Vaccinium spp.), and accessions from five diploid Vaccinium species were...
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