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Flowering Periods, Genetic Characteristics, and Cross-Pollination Rate of Zoysia spp. in Natural Open-Pollination  

Choi, Dong-Keun (Department of Green Landscape Architecture Science, Dankook Univ.)
Yang, Geun-Mo (Department of Green Landscape Architecture Science, Dankook Univ.)
Choi, Joon-Soo (Department of Green Landscape Architecture Science, Dankook Univ.)
Publication Information
Asian Journal of Turfgrass Science / v.22, no.1, 2008 , pp. 13-24 More about this Journal
Abstract
This study was carried out to provide basic information for the breeding of zoysiagrass synthetic varieties. For estimation of flowering periods, genetic characteristics, and cross-pollination rate, 5 combinations of zoysiagrass breeding lines were compared. Days to stigma emergence and anther exertion were observed in the field to calculate overlapping dates for cross-fertilization. Harvested seed from cross breeding combinations were planted to compare genetic characteristics using morphological traits of progenies. These data were used for determination of 7 phenotypic inheritance types with 8 morphological traits. Cross-pollination rates in 3 combinations of zoysiagrasses were estimated by using lower part color of grass shoots. Cross-pollination rates of zoysiagrass ranged from 11.3$\sim$48.9%, which indicated that zoysiagrass is an allogamous plant. When zoysiagrass breeding lines are properly combined, they may result in valuable synthetic cultivars.
Keywords
allogamous; leaf-sheath color; morphological characteristics; synthetic variety; zoysiagrass;
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