Full TGIF Record # 324874
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Web URL(s):https://scisoc.confex.com/scisoc/2022am/meetingapp.cgi/Paper/143400
    Last checked: 01/24/2023
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Publication Type:
Content Type:Abstract or Summary only
Author(s):Errickson, William; Huang, Bingru
Author Affiliation:Errickson: Presenting Author and Rutgers University; Huang: Rutgers University
Title:Promotive effects of Paraburkholderia aspalathi rhizobacteria on drought stress tolerance and post-drought recovery
Section:Molecular Techniques, Genetics, Microbiome, and Turfgrass Breeding Oral (includes student competition)
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C05 turfgrass science
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Meeting Info.:Baltimore, Maryland: November 6-9, 2022
Source:ASA, CSSA, SSSA International Annual Meeting. 2022, p. 143400.
Publishing Information:[Madison, Wisconsin]: [American Society of Agronomy, Crop Science Society of America, and Soil Science Society of America]
# of Pages:1
Abstract/Contents:"Improving drought stress tolerance and post-drought recovery in cool season turfgrass is an important objective for reducing water use, while maintaining turf quality. Current research has focused on using plant growth promoting rhizobacteria (PGPR) that produce ACC deaminase to improve drought tolerance by reducing stress-induced ethylene, and thus leaf senescence. However, field trials can be challenging because variable environmental conditions and native soil organisms may influence the successful inoculation and effects of PGPR. This research represents three years of fields trials on PGPR inoculation for improving drought stress tolerance and post-drought recovery. In 2020 and 2021, Creeping bentgrass (cv. Pencross) was inoculated with two novel strains of endophytic ACC deaminase producing Paraburkholderia aspalathi bacteria that have previously demonstrated growth promoting properties using a foliar spray and soil drench inoculation method in field conditions. The plots were subjected to deficit irrigation (60% ET) treatments followed by a period of rewatering (100% ET). Weekly measurements of Turf Quality (TQ), Normalized Difference Vegetative Index (NDVI), Stress Index (SI), Leaf Area Index (LAI), and Canopy Density indicated that applying the two strains in combination via soil drench was most effective. Based on the data from these trials, the dosage of the inoculant was optimized in 2022, in which creeping bentgrass field plots were inoculated with three different concentrations of the two bacteria strains using the soil drench method and subjected to deficit irrigation/post-drought recovery treatments. This novel approach was then field tested on two commercial sod farms to ensure that the improvements in drought stress tolerance could be replicated in varied environments and soil conditions under different management practices. These trials suggest that field inoculation with two novel strains of P. aspalathi via soil drench may help to reduce water use and improve drought stress tolerance in turf management and sod production applications."
Note:This item is an abstract only!
ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Errickson, W., and B. Huang. 2022. Promotive effects of Paraburkholderia aspalathi rhizobacteria on drought stress tolerance and post-drought recovery. Agron. Abr. p. 143400.
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    Last checked: 01/24/2023
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