| 狗牙根与弯穗狗牙根形态鉴别性状的筛选 |
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| 引用本文： | 黄春琼,刘国道. 狗牙根与弯穗狗牙根形态鉴别性状的筛选[J]. 热带作物学报, 2010, 31(1): 44-48. DOI: 10.3969/j.issn.1000-2561.2010.01.009 |
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| 作者姓名： | 黄春琼 刘国道 |
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| 作者单位： | 1. 中国热带农业科学院热带作物品种资源研究所,农业部热带作物种质资源利用开放重点实验室,海南儋州,571737;海南大学农学院,海南儋州,571737
2. 中国热带农业科学院热带作物品种资源研究所,农业部热带作物种质资源利用开放重点实验室,海南儋州,571737 |
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| 基金项目： | 热带牧草种质资源保护项目;国家科技支撑计划项目，农业部973项目，中国热带农业科学院热带作物品种资源研究所研究生基金项目 |
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| 摘 要： | 观测和统计分析了10个狗牙根和8个弯穗狗牙根种源的17个外部形态性状。结果表明:(1)与狗牙根相比,弯穗狗牙根的直立枝和匍匐枝叶片均较宽,节间较粗,差异显著;(2)弯穗狗牙根的叶片浅绿色,柱头紫褐色,而狗牙根的叶片较深,为绿色或深绿色,柱头为紫色、紫红或浅紫色;(3)弯穗狗牙根叶片和叶鞘均无毛,而狗牙根有毛。因此,直立枝和匍匐枝的叶片宽度、节间直径、叶色、柱头颜色、叶片毛况和叶鞘毛况7个外部形态性状可作为鉴别这2个种的形态学指标。
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| 关 键 词： | 狗牙根 弯穗狗牙根 形态性状 鉴定 |
Selection of Morphological Traits for Identification of Cynodon dactylon and C. radiatus |
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| Huang Chunqiong and Liu Guodao. Selection of Morphological Traits for Identification of Cynodon dactylon and C. radiatus[J]. Chinese Journal of Tropical Crops, 2010, 31(1): 44-48. DOI: 10.3969/j.issn.1000-2561.2010.01.009 |
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| Authors: | Huang Chunqiong and Liu Guodao |
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| Affiliation: | Huang Chunqiong1,2,Liu Guodao1 1 Tropical Crops Genetic Resources Institute,CATAS,Danzhou,Hainan 571737,Ministry of Agriculture Key Laboratory for Utilization of Tropical Crops Germplasm Resources,2 College of Agronomy,Hainan University,China. |
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| Abstract: | Seventeen morphological characteristics of 10 accessions of Cynodon dactylon (Linnaeus) Persoon and 8 accessions of Cynodon radiatus Roth ex Roemer et Schultes were analyzed and compared. The results showed that C. radiatus had broader leaves in the upright stem and stolon and thicker internodes than C. dactylon, with obvious difference. For C. radiatus, the leaves are light green and the stigma purplish brown, whereas for C. dactylon the leaves are darker, either green or dark green, and the stigma purple,... |
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| Keywords: | Cynodon dactylon (L.) Pers C. radiatus morphological characteristics identification |
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