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洛阳市狗牙根种质资源调查
引用本文:郑轶琦,任舸,赵阳,马健,夏冬,杨扬.洛阳市狗牙根种质资源调查[J].北方园艺,2011(24):76-79.
作者姓名:郑轶琦  任舸  赵阳  马健  夏冬  杨扬
作者单位:河南科技大学林学院,河南洛阳,471003;河南科技大学林学院,河南洛阳,471003;河南科技大学林学院,河南洛阳,471003;河南科技大学林学院,河南洛阳,471003;河南科技大学林学院,河南洛阳,471003;河南科技大学林学院,河南洛阳,471003
基金项目:河南科技大学博士科研基金资助项目(09001426),河南科技大学大学生研究训练计划(SRTP)资助项目(2010092)
摘    要:按照居群取样方法,随机选取洛阳市15个狗牙根居群(包括10个野生居群和5个栽培品种居群),调查了居群狗牙根的生境类型、群落组成及其形态学特性.结果表明:洛阳市狗牙根群落的主要生境是路边、坡地、田坎边、疏林下及河边等;洛阳市狗牙根群落中有17科24属26种伴生植物,主要伴生植物为灰菜、婆婆纳、小白酒草、葎草、莎草、苦苣菜和打碗花等;15个居群中狗牙根形态学特性的变化范围分别是:草层高度0.8~48.7 cm、匍匐茎节间长度0.4~12.9 cm、匍匐茎节间直径0.04~0.28 cm、直立茎叶长0.4~11.6 cm、直立茎叶宽0.09~0.45 cm.各性状变异系数由大到小依次是草层高度(91%)>匍匐茎的节间长度(64%)>直立茎的叶宽(44%)>匍匐茎的节间直径(43.5%)>直立茎的叶长(31%).该研究结果可为洛阳市狗牙根种质资源的开发和利用提供理论依据.

关 键 词:洛阳市  狗牙根  种质资源  调查

Investigation of Bermudagrass Germplasm in Luoyang City
ZHENG Yi-qi , REN Ge , ZHAO Yang , MA Jian , XIA Dong , YANG Yang.Investigation of Bermudagrass Germplasm in Luoyang City[J].Northern Horticulture,2011(24):76-79.
Authors:ZHENG Yi-qi  REN Ge  ZHAO Yang  MA Jian  XIA Dong  YANG Yang
Institution:(College of Forestry,Henan University of Science and Technology,Luoyang,Henan 471003)
Abstract:15 populations of bermudagrass were investigated based on population sampling including 10 wild populations and 5 cultivated populations in Luoyang.The habitat types,community composition and morphological properties were investigated.The results showed that the habitat types in Luoyang were roadside,slopes,ridge side of the river in sparse woods,etc.;the accompanying plants had 26 species from 24 genera in 17 families.The mainly accompanying plants were gray food plants,speedwell,small white grass,Humulus,sedge,Sonchus and Calystegia,etc.;Bermudagrass characteristics had widely variation in Luoyang.Among these characteristics,the coefficient of variation of the height of turf was the highest(85%)whose variation range was from 1.3 cm to 48 cm.The coefficient of variation of leaf length and internode length were 55% and 54%,whose variation range were 0.3~10.6 cm and 0.5~10.2 cm,respectively.The coefficient of variation of leaf width was 28% whose variation range was 0.17~0.5 cm.The lowest coefficient of variation was internode diameter which was 24% and whose variation range was 0.08~0.19 cm.The results of this study could provide a theoretical basis for the development and utilization of bermudagrass germplasm in Luoyang.
Keywords:Luoyang city  bermudagrass  germplasm  investigation
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