Salinity Effects on Zoysiagrass Cultivars and Experimental Lines

Qian, Yaling; Engelke, M. C.; Foster, Margaret

doi:10.2135/cropsci2000.402488x

Cited by 86 publications

(70 citation statements)

References 11 publications

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“…As increasing salinity, K concentration in leachate was increased. This result show the depress effect of high Na levels on K uptake, thereby increasing leaching of K. This is agreement with another study (Qian et al, 2000). Results indicated that the amount of mineral elements including N, K, CA ++ , MG ++ in soil were intensely influenced by zeolite application and increased.…”

Section: Resultssupporting

confidence: 92%

Effects of Natural Zeolite to Reduce Salt Stress in Kentucky bluegrass (Poa pratensis)

Negahban¹,

Saeedfar²,

Ramezan³

et al. 2014

Russian Journal of Biological Research

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Salinity is one of the most important factors limiting growth and development in cultivated species. Kentucky bluegrass was grown in boxes filled with sand (100%), 95% sand: 5% zeolite, 90% sand: 10 % zeolite and 85% sand 15% zeolite (V/V). Poa pratensis plants were irrigated with 0.24, 3.4 and 6.4 dS.m -1 salt water daily for 6 months in greenhouse condition to study the effect of different levels of zeolite on turf quality (TQ) and some physiological growth factors, salt deposition, sodium absorption ratio (SAR) and ion composition in leachate under different levels of salinity. Saline water reduced (PR), transpiration, (SC), (ME), (WUE), maximum assimilation rate (Amax), carboxylation efficiency (g , m) and net assimilation rate (A360) compared to control. Amendment of sand with zeolite increased TQ, PR, transpiration, SC, ME, WUE, (Amax), (g , m) and (A360) during both the 2nd & 3rd months at both salinity levels. Highest effect obtained in highest percent of zeolite. The beneficial effects of zeolite on turf quality and other parameters diminished 3 months after treatments. Amendment of sand with zeolite reduced leaching of Na and K but, increased leaching of Ca and Mg. Using zeolite in medium increased SAR value compared to control. Results indicate that amending with zeolite may buffer soil solution Na concentration in short-term. In the long-term, however, a substantial amount of Na may be retained concurrent with Ca & Mg exchange, thereby increasing sodicity & salinity problems.

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Section: Resultssupporting

confidence: 92%

Effects of Natural Zeolite to Reduce Salt Stress in Kentucky bluegrass (Poa pratensis)

Negahban¹,

Saeedfar²,

Ramezan³

et al. 2014

Russian Journal of Biological Research

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“…The increase in biomass refers to high efficient carbon fixation and consequent exchange of growth. We found 50% firing under EC of 2.5 dS m À1 for control while it was as high as 7.5 in transgenic plants, in Zygosiza grass 50% firing was reported under EC of 3.0 dS m À1 (Qian and Engelke 2000). Due to drought and salt stress, the root/shoot ratio significantly increased which is recognized to be a general morphological adaptation to decreased water potentials (Romero- Aranda et al 2002).…”

Section: Discussionmentioning

confidence: 84%

Transgenic Plants of Creeping Bent Grass Harboring the Stress Inducible Gene, 9-cis-epoxycarotenoid dioxygenase, are Highly Tolerant to Drought and NaCl Stress

Aswath

Kim²,

et al. 2005

Plant Growth Regul

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Transgenic lines of creeping bent grass were generated by Agrobacterium-mediated transformation with the VuNCED1 which was cloned from cow pea has a homology to 9-cis-epoxycarotenoid dioxygenase, which is supposed to be involved in abscisic acid (ABA) biosynthesis. ABA, a cleavage product of carotenoids, is involved in stress responses in plants. The limiting step of ABA biosynthesis in plants is presumably the cleavage of 9-cis-epoxycarotenoids, the first committed step of ABA biosynthesis. Molecular analyses of transgenic lines as performed by Southern hybridization genomic DNA-PCR revealed integration of the VuNCED1. Challenge studies performed with transgenic plants by exposure to salt stress (up to 10 dS m À1 ) and water stress (up to 75%) for 10 weeks, revealed that more than 50% of the transgenic plants could survive NaCl and drought stress whereas wild-type was not. ABA levels were measured under drought and normal conditions, endogenous ABA was dramatically increased by drought and NaCl stress in transgenic plants. These results indicate that it is possible to manipulate ABA levels in plants by over expressing the key regulatory gene in ABA biosynthesis and that stress tolerance can be improved by increasing ABA levels.

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“…(Horst and Beadle 1984), Lolium perenne Wipff 2001), Paspalum vaginatum (Dudeck andPeacock 1985b;Lee et al 2002Lee et al , 2004a, Poa pratensis (Horst and Taylor 1983;Rose-Fricker and Wipff 2001), Stenotaphrum secundatum (Dudeck et al 1993), and Zoysia spp. Qian et al 2000). Such work is important, and needs to be updated at regular intervals, due to the rapid introduction of new cultivars.…”

Section: Turfgrass Salt Tolerance Breedingmentioning

confidence: 99%

Use of saline and non-potable water in the turfgrass industry: Constraints and developments

Marcum

2006

Agricultural Water Management

108

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The need for salt-tolerant turfgrasses is ever-increasing. Rapid urban population growth has put enormous pressures on limited freshwater supplies. Many state and local governments have reacted by placing restrictions on the use of potable water for irrigating turfgrass landscapes, instead requiring use of reclaimed, or other secondary saline water sources. In coastal areas, overpumping, and resultant salt water intrusion of coastal wells used for irrigating turfgrass facilities has widely occurred. The nature and extent of the salinity problem, followed by basic salinity issues and available management choices, will be discussed. Issues facing the turf manager using saline water sources are soil salinization, resulting in direct salt injury to turf, and secondary problems of loss of soil structure ensuing from sodium and bicarbonate effects, resulting in loss of salt leaching potential and soil anaerobiosis. Management choices for the turf manager using saline water are limited. Soil salinity must be maintained below the level deemed detrimental to the turf, by maintaining sufficient leaching. Sodium/bicarbonate affected soils must be managed to maintain sufficient permeability to permit adequate leaching. Finally, salt tolerant turf species/cultivars must be used. Long-term solutions to the salinity problem will require development of improved salt-tolerant turfgrasses. Progress in cultivar development, and future development of potential alternative halophytic turfgrass species will also be discussed. Media summaryRapid urbanization has resulted in escalating salinity issues facing turfgrass landscapes. The extent of the salinity problem, salinity management issues, including soil salt-leaching and sodicity-permeability management, use of salt tolerant turf cultivars, and future development of salt tolerant turfgrasses will be discussed.

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Salinity Effects on Zoysiagrass Cultivars and Experimental Lines

Cited by 86 publications

References 11 publications

Effects of Natural Zeolite to Reduce Salt Stress in Kentucky bluegrass (Poa pratensis)

Effects of Natural Zeolite to Reduce Salt Stress in Kentucky bluegrass (Poa pratensis)

Transgenic Plants of Creeping Bent Grass Harboring the Stress Inducible Gene, 9-cis-epoxycarotenoid dioxygenase, are Highly Tolerant to Drought and NaCl Stress

Use of saline and non-potable water in the turfgrass industry: Constraints and developments

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