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狗牙根植物介绍
2022-07-24 15:41:00 【我是大南瓜】
1、狗牙根的起源与分布
狗牙根(Cynodon dactylon L.)又叫百慕大草、狗牙草、魔鬼草、沙发草等,是禾本科画眉草亚科狗牙根属,属于多年生草本植物。它起源于非洲等地,之后被引入美洲,是丰富的入侵物种。
目前,狗牙根被广泛种植在世界各地的温暖区域,在地理北纬30度到南纬30度均有分布。
2、狗牙根的生物学特性
狗牙根叶片呈灰绿色,叶长较短,通常2-15cm,叶片边缘粗糙。狗牙根直立茎可达30cm,茎稍扁平。开花时,茎的顶部形成一簇穗状花序(包括2-6个穗状花序),每个穗状花序长 2-5 厘米。狗牙根以种子、匍匐茎和根茎繁殖。通常狗牙根根系较深,在干旱情况下,根系可达2m,大部分根系在60cm左右。自然状态下,狗牙根匍匐茎在地面爬行,茎节处可以生根。狗牙根生长需要15摄氏度,最适生长温度在24到37摄氏度之间,充足的阳光有利于狗牙根生长,冬季,草变休眠整体会变成棕色。
狗牙根具有良好的抗逆性,具有耐干旱、耐盐碱、耐践踏、适应性强和繁殖快的优点。
狗牙根形态主要为下图形式:

3、狗牙根的应用
狗牙根作为广泛分布的草坪草,也可以用于生产牧草和药材。
4、狗牙根基因组
狗牙根二倍体基因组
狗牙根四倍体基因组
参考:
https://antropocene.it/es/2019/02/11/cynodon-dactylon/
https://acsess.onlinelibrary.wiley.com/doi/abs/10.2135/cropsci1969.0011183X000900060031x
https://baike.baidu.com/item/%E7%8B%97%E7%89%99%E6%A0%B9/813633
https://en.wikipedia.org/wiki/Cynodon_dactylon
https://kreader.cnki.net/Kreader/CatalogViewPage.aspx?dbCode=CMFD&filename=1022037862.nh&tablename=CMFDTEMP&compose=&first=1&uid=WEEvREcwSlJHSldSdmVpa3VEenplYUxWc0xYNGZrOVRJQURsVHZ6b215Yz0=$9A4hF_YAuvQ5obgVAqNKPCYcEjKensW4IQMovwHtwkF4VYPoHbKxJw!!
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