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Seashore paspalum georgia11/21/2023 ![]() The specific objectives include development of SSRs for future genetic studies, screening germplasm for salt tolerance, documenting genetic diversity, and identifying QTLs associated with high levels of salt tolerance. The overall objective of this research is to uncover and map key genes involved in the salt tolerance mechanism(s) of the salt-tolerant turfgrass seashore paspalum (Paspalum vaginatum Swartz). Plants were grown in 10 x 10 cm pots and were maintained in a greenhouse with a temperature of 28 ±5/20 ±5C (day/night) without any artificial light supplementation. ![]() Plant materials were established clonally from stolon nodes. This research project involves a team of research scientists and is being lead by the efforts of Mr. 531-22) from The University of Georgia seashore paspalum breeding program were used in this study. Breeding and evaluation efforts are now underway with the goal of releasing new cultivars with high levels of resistance to ACCase-inhibiting herbicides. Herbicide resistant breeding lines have been developed and confirmed resistant to ACCase inhibiting herbicides in seashore paspalum and in bentgrass. Our breeding program has developed non-genetically modified (non-GM) herbicide resistant turfgrasses by using a tissue culture technique to select for naturally occurring resistant mutant cells. There are currently no selective herbicides that can effectively be used to manage many grassy weeds in seashore pasaplum. Non-GM Herbicide Resistance System for Turfīermudagrass and other problematic grassy weeds continue to be a major management issue for seashore paspalum. Goals are to explore the potential of using transgenes from other grasses and/or improving the efficiency of existing paspalum genes with potential to reduce the incidence or severity of dollar spot in seashore paspalum. Parrott’s lab, is leading a research project focused on improving the dollar spot resistance of seashore paspalum. ResearchĪreas include breeding methodology, herbicide resistance systems, genetics of salt tolerance and disease resistance traits, and development of molecular markers for important traits such as salt tolerance. Breeding goals are to develop cultivars for high-stress environments with improved salt tolerance, drought tolerance, disease resistance, and insect resistance. All Rights Reserved.Primary emphasis is placed on the development of improved cultivars of seashore paspalum, tall fescue, zoysiagrass, and creeping bentgrass for a range of fine-turf and environmental applications. The University of Georgias Team UGA is a recognized leader in the arena of seashore paspalum turfgrass breeding and research. © 2020 American Society of Plant Biologists. vaginatum, illustrating a possible path for biotechnological improvement of salt-sensitive Panicoid crops with analogous leaf structures. We provide evidence that leaf papillae function as specialized structures for Na + sequestration in P. The cv HI10 papillae were shown to act as Na + sinks when plants were grown under saline conditions. However, these unicellular extensions of the epidermis were significantly larger in cv HI10 than in cv Spence. Imaging further showed that the adaxial surface of both cv HI10 and cv Spence contained dense costal ridges of papillae. A striking difference between cv HI10 and cv Spence was the high steady-state level of K + in cv HI10. vaginatum 'HI10', which shows increased growth under saline conditions, and Paspalum distichum 'Spence', which shows reduced growth under salt, to better understand the superior salt tolerance of cv HI10. We examined the leaf structure and ion content in P. Despite its widespread cultivation as a sustainable turfgrass, the mechanism underlying its ability to retain high Na + concentrations in photosynthetic tissue while maintaining growth remains unknown. Seashore paspalum ( Paspalum vaginatum) is a halophytic Panicoid grass able to grow in salt concentrations near that of seawater. Silica was applied to two ecotypes of seashore paspalum (Paspalum vaginatum Swartz.) as potassium (K) silicate at. ![]() ![]() Studying mechanisms of salt tolerance in halophytic grasses, plants that thrive in salt conditions, may be an effective approach to ultimately improve salt-sensitive grass crops. Georgia Experiment Station in Griffin, GA. Many grass crops that are vital to sustain the world's caloric intake are salt sensitive. Salinity is a growing issue worldwide, with nearly 30% of arable land predicted to be lost due to soil salinity in the next 30 years.
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