Zoysiagrass Species and Genotypes Differ in Their Winter Injury and Freeze Tolerance

Patton, Aaron J.; Reicher, Zachary J.

doi:10.2135/cropsci2006.11.0737

Cited by 97 publications

(135 citation statements)

References 31 publications

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“…Thus 'Meyer' was the most cold-tolerant cultivar. This result was similar to those in several previous reports (Warmund et al, 1998;Dunn et al, 1999;Patton and Reicher, 2007). 'Meyer' was the only commercially-available cultivar showing ≤ 7% Winter injury in two consecutive years (Patton and Reicher, 2007).…”

Section: Screening Zoysiagrass Accessions For Cold Tolerancesupporting

confidence: 92%

“…It has gained in popularity because of its tolerance to heat, freezing, and drought in the climatic transition zone. It also requires minimal maintenance and inputs, and is well-adapted for lawns and golf-courses in transitional and warm climatic regions (Patton and Reicher, 2007). Unfortunately, genetic information regarding the stress tolerance of turfgrasses is limited.…”

Section: Isolation and Expression Profiles Of The Zjdreb1 Genementioning

confidence: 99%

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Isolation and expression profiles of theZjDREB1gene encoding a DRE-binding transcription factor from zoysiagrass (Zoysia japonica)

Wang

Zhang

Xuan

et al. 2012

The Journal of Horticultural Science and Biotechnology

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Section: Screening Zoysiagrass Accessions For Cold Tolerancesupporting

confidence: 92%

Section: Isolation and Expression Profiles Of The Zjdreb1 Genementioning

confidence: 99%

Isolation and expression profiles of theZjDREB1gene encoding a DRE-binding transcription factor from zoysiagrass (Zoysia japonica)

Wang

Zhang

Xuan

et al. 2012

The Journal of Horticultural Science and Biotechnology

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“…This large patch study included only one zoysiagrass cultivar, Meyer. Different varieties and germplasm lines have varying rates of establishment (29), cold tolerance and greenup after winter dormancy (31,33), recovery from damage or sod harvest (30), and susceptibility to and ability to recover from large patch (28,32). Different cultivars may respond differently to various combinations of disease and cultural practices, including N fertility.…”

Section: Discussionmentioning

confidence: 99%

Effect of Cultivation and Timing of Nitrogen Fertilization on Large Patch Disease of Zoysiagrass

Obasa¹,

Fry²,

Bremer³

et al. 2013

Plant Disease

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Obasa, K., Fry, J., St. John, R., and Kennelly, M. 2013. Effect of cultivation and timing of nitrogen fertilization on large patch disease of zoysiagrass. Plant Dis. 97:1075-1081.Large patch of zoysiagrass (Zoysia spp.) is caused by Rhizoctonia solani anastomosis group 2-2 LP. The effects of summer cultivation (core-aerification, verticutting, and sand topdressing) and spring and fall versus summer nitrogen (N) fertilization on large patch in fairway height 'Meyer' zoysiagrass were investigated from 2008 to 2011 in Manhattan, Haysville, and Olathe, KS. Disease was assessed by measuring patch diameters or analyzing digital images of affected plot areas to determine the percentage of non-green turfgrass within patches. Cultivation did not affect thatch temperature, soil temperature, soil water content, or turf recovery from large patch in early summer. Furthermore, cultivation did not result in overall significant reductions in patch diameters or average weekly rate of patch diameter increase among plots at the three experimental locations. In some site-year combinations, spring and fall N fertility was associated with lower percentages of non-green turf within affected plot areas in Manhattan and Haysville. In some cases, applications of N during spring and fall may alleviate large patch symptoms.Zoysiagrass (Zoysia japonica Steud. and Z. matrella (L.) Merr.) is a warm-season (C4), perennial turfgrass that is widely used on golf courses in the "transition-zone" of the United States, a region that includes Kansas and states eastward to Virginia and North Carolina. Compared with certain cool-season (C3) turfgrass species used on fairways, such as creeping bentgrass (Agrostis stolonifera L.), zoysiagrass has lower water, fertilizer, and pesticide requirements while maintaining a high-quality surface (16). Large patch, caused by Rhizoctonia solani Kühn anastomosis group (AG) 2-2 LP, is the most common and most severe disease of zoysiagrass.In Kansas, symptoms of large patch appear during spring (April to May) and autumn (September to October) as roughly circular, slightly matted tan patches with bright orange margins (17,40,45). Patches can range from 1 to 6 m or more in diameter (17,45), with healthy turf sometimes scattered within the patches. Symptoms on individual plants occur as reddish-brown to black lesions on the basal leaf sheaths. During summer conditions, regrowth within patches often results in full turf recovery, though weeds can encroach while the zoysiagrass is thinned.In laboratory tests, a temperature range of 15 to 25°C was optimum for infection of zoysiagrass by the fungus (17). It has been suggested that the lack of symptoms during summer months is because thatch and soil temperatures often exceed 30°C, potentially hindering growth of the fungus while, at the same time, favoring zoysiagrass root and shoot growth (17). Additionally, soil moisture and leaf wetness are important factors in large patch development and severity. Severe large patch symptoms on zoysiagrass have been associated wi...

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“…In a 2-yr field study in Indiana, Meyer exhibited no winter injury whereas other cultivars and their respective percentage winter injury in each year, as determined by green color in digital images in late May were Zorro, 18 and 28%, Cavalier, 17 and 45%, Emerald, 3 and 78%, and Diamond, 100 and 98% (Patton and Reicher, 2007). In the same study (Patton and Reicher, 2007), zoysiagrass cultivars were also exposed to controlled freezing temperatures in a cold stress simulator, and cultivars and their respective lethal temperatures resulting in death of 50% of tillers (LT^^s) were Meyer, -11.5°C, Zorro, -9°C, Diamond,and Cavalier, Recently, researchers at Texas AgriLife Research and Extension Center at Dallas, TX, crossed Emerald or Z. matrella cultivars with Z. japónica in an effort to develop cultivars that have good density, a fine leaf texture, and quality similar to Emerald or the aforementioned Z. matrella cultivars but freezing tolerance equivalent to or better than Meyer. In 2004, over 600 zoysiagrass progeny originating from crosses done in Texas were brought to Manhattan, KS, and planted as single 10-cm diam.…”

mentioning

confidence: 96%

Freezing Tolerance and Seasonal Color of Experimental Zoysiagrasses

et al. 2011

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Meyer zoysiagrass {Zoysia japónica Steud.) is the most widely used cultivar in the transition zone of the United States due, in part, to its excellent freezing tolerance. Ten zoysiagrass progeny from crosses between Z. matrella (L.) Merr. x Z japónica or 'Emerald' [Z japónica x Z matrella (L.) Merr. var. pacifica Goudswaard] X Meyer, 'Cavalier' (Z. matrella), and DALZ 0102 (Z. japónica) were evaluated for (i) freezing tolerance, (ii) autumn and spring color, and (iii) a relationship between autumn color and freezing tolerance. Turfgrass cores were sampled from the field near Manhattan, KS, in October, December, or February and exposed to temperatures from -6 to -22°C in the laboratory. Lethal temperatures resulting in death of 50% of tillers (LTJQ) after 6 wk of recovery in the greenhouse ranged from -0.2 C to -12.2°C. All grasses were equivalent to Meyer in freezing tolerance except Cavalier on three of five sampling dates and one Z matrella x Z japónica progeny in December 2007, which were inferior to Meyer. Digital image analysis indicated that five progeny were superior to Meyer in autumn green color retention, but none were superior to Meyer in spring green color. Autumn color in 2007 was positively correlated (r = 0.40 to 0.58, p < 0.05) with LTgg in December 2007. However, autumn color was also positively correlated with color the following spring (r = 0.31 to 0.72). These progeny demonstrated good freezing tolerance and, in some cases, superior autumn color compared to Meyer. ). Abbreviations: of tillers. lethal temperature resulting in death of 50% Z OYSIAGRASS {Zoysia spp.) is a warm-season turfgrass commonly used on lawns and golf courses in the transition zone and the southern parts of the United States. Meyer {Z. japónica Steud.; Grau and Radko, 1951) has been the cultivar used predominantly in the transition zone since its release in 1951, in part because of its excellent freezing tolerance. However, Meyer is relatively slow to establish and more coarse textured than Emerald [Z. japónica x Z. matrella (L.) Merr. var. pacifica Goudswaard] or Z. matrella (L.) Merr. cultivars and has relatively slow recuperative rates (Fry and Dernoeden, 1987;Patton, 2009).Since the release of Meyer, researchers have developed and released numerous zoysiagrass cultivars, including the Z. matrella cultivars Cavalier (Engelke et al., 2002a), Diamond (Engelke et al., 2002b), and Zorro (Engelke andReinert, 2003). These cultivars have a finer leaf texture and better quality characteristics compared to Meyer; however, poor freezing tolerance has limited their use in the transition zone. In a controlled freezing chamber experiment.

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Zoysiagrass Species and Genotypes Differ in Their Winter Injury and Freeze Tolerance

Cited by 97 publications

References 31 publications

Isolation and expression profiles of theZjDREB1gene encoding a DRE-binding transcription factor from zoysiagrass (Zoysia japonica)

Isolation and expression profiles of theZjDREB1gene encoding a DRE-binding transcription factor from zoysiagrass (Zoysia japonica)

Effect of Cultivation and Timing of Nitrogen Fertilization on Large Patch Disease of Zoysiagrass

Freezing Tolerance and Seasonal Color of Experimental Zoysiagrasses

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