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Morphological Characteristics and Growth Rate of Medium-Leaf Type Zoysiagrasses Collected at Major Sod Production Area in S. Korea  

Choi, Joon-Soo (Department of Green Landscape Architecture Science, Dankook Univ.)
Yang, Geun-Mo (Department of Green Landscape Architecture Science, Dankook Univ.)
Oh, Chan-Jin (Forest Resources Research Institute)
Bea, Eun-Ji (Southern Forest Research Center, Korea Forest Research Institute)
Publication Information
Asian Journal of Turfgrass Science / v.26, no.1, 2012 , pp. 1-7 More about this Journal
Abstract
Field experiments were conducted to evaluate the morphological characteristics and growth rates of 101 medium-leaf type zoysiagrasses (Zoysia spp.) collected at the major sod production area (Jang Seong Gun) in South Korea. Collected lines with distinctive morphology and visual growth rate were planted in plastic pots and measured morphological characteristics under the plastic house conditions. Variation of leaf width, plant height, leaf angle, length of leaf sheath, trichome, stolon length, and color were measured. Six lines were selected by evaluating growth rates from one hundred one collected lines. Eight standard cultivars and three other superior lines previously collected were compared to 7 selected lines form Jang seong area by checking growth rates and morphological characteristics. Average leaf blade width was 3.4 mm, leaf angle was 45.8 degree, plant height was 21.6 cm, height of lowest leaf was 5.0 cm, and length of leaf blade was 14.1 cm. Ground cover rates of selected lines 'CY6097' and 'CY6069' were 70% and 68.3%, respectively. These are believed to be faster than 60% ground cover rate of zoysiagrass 'Anyang', and also, twice as faster than the 31.7% ground cover rate of Z. matrella. Selected line 'CY6069' showed fast growth rate with shorter internode length (5.1 cm) compared to zoysiagrass 'Anyang'. Based on the results of this study, we could select useful fast growing zoysiagrass breeding lines from the major sod production area (Jang Seong Gun) in Korea.
Keywords
Growth rate; Morphological characteristics; Sod production; Zoysiagrass;
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