引用格式：，等.杂交结缕草耐荫品种的筛选及综合评价[J].草地学报，2025，33（7）：2288—2298 LIU Tian，FENG Jia-xin，LIU Meng-jiao，et al. Screening and Comprehensive Evaluationof Shade-Tolerance Hybrid Cultivars in Zoysiagrass （Zoysia spp.）[J]. Acta Agrestia Sinica，2O25，33（7）：2288-2298

中图分类号：S688.4 文献标识码：A 文章编号：1007-0435（2025）07-2288-11

Screening and Comprehensive Evaluationof Shade-Tolerance Hybrid Cultivars in Zoysiagrass （Zoysia spp. ）

LIUTian ^1，2 ，FENG Jia-xin²，LIU Meng-jiao²，Chen Jing-bo²，GUO Hai-lin，KONG Wei-yi*， ZHENG Yi-qi1 （1.CollgeofrtiltureandPlantrotectioHenanUnversityofieceadecholgLuoyng，HenanProvinceina; 2.JiangsuKeyboratorfoseationdUtilatiooflantRsoucsstituteofotanyaguPrinceadCnadef Sciences （Nanjing Botanical Garden Mem. Sun Yat-Sen），Nanjing，Jiangsu Province 21Ool4，China）

Abstract：To screen shade-tolerant cultivars in zoysiagrass （Zoysia spp.），the‘Z. matella’ and four indepen dently selected hybrid cultivars were used as experimental materials.The shade tolerance was evaluated by comparing morphological index，dry weight，and turf quality under four artificial shading treatments （0% ， 35% ， 60% ， 80% ）. And the cultivation test was also conducted under a natural shading environment. The results showed that short-term treatment with 35% shading intensity had minimal negative effects on zoysiar grass growth. However，as shading duration and intensity increased，the relative canopy coverage and clipping dry weight of five zoysiagrasses exhibited declining trends，while turf height showed an opposite trend.After eight weeks of shading treatment，reductions were observed inthe canopy dry weight，rootdry weight，and rhizome dry weight to varying degrees，accompanied by a gradual decline in the turf quality. By principal component analysis and membership function methods，a comprehensive evaluation ranked the top three shade-toler ant cultivars as‘Suzhi No. 4^′ ‘Suzhi No.3’and‘Suzhi No. _1^⋅ .Under broad-leaved trees with the lowest shading intensity，the growth performanceof these zoysiagrasses aligned with the results from artificial shading treatments.This study provides a valuable reference for selection and application of shade-tolerant zoysiagrass.

Key Words：Shade tolerance ;Zoysiagrass;Hybrid cultivars; Comprehensive evaluation

在生态文明建设的时代背景下，我国持续开展大规模国土绿化活动，积极推动国家公园高质量发展，助力“美丽中国”建设。为了塑造自然型城市的生态环境，如何增加城市绿地中植物群落的密度和层次，提高单位面积绿地的生态效益，已经成为生态园林设计的重要课题。草坪草已被广泛应用于城市园林绿化和高标准运动场建设，具有保持水土、吸附尘埃、净化空气、调节气温和减震防滑等功能[1-2]，成为推动新时代露营经济发展、服务全民健身战略的生态载体。然而草坪草植株低矮密集，容易被乔木和建筑物遮挡而遭受遮荫胁迫，严重时出现大面积衰退甚至死亡，这大大削减草坪的观赏、休憩、生态修复和运动性能[3-4]。因此，因地制宜选育和推广耐荫性强的草坪草品种，对于城市生态建设和体育产业发展至关重要。

开展草坪草耐荫性评价是筛选耐荫优异种质的基础。在城市荫蔽环境下，不同草坪草物种和品种间的耐荫性差异较大[3]。暖季型草坪草主要分布于长江流域及以北部分地区，已有研究指出南京周边地区的耐荫草坪草首选假俭草（Eremochloaophiuroides）和沟叶结缕草（Zoysiamatrella），而不宜使用日本结缕草（Z.japonica）和狗牙根（Cynodondactylon）[5]。在上海地区 60% 遮荫环境下，生长表现最好的是‘马尼拉结缕草'（‘Z.matrella'），其次是海滨雀稗（Paspalumvaginatum）‘Sea Isle2000'和‘Salam'还有假俭草，最差的是Tif系列狗牙根[6。广州地区开展草坪草……