不同环境因素对满江红生物学特性的影响

摘要

为筛选培育抗逆性强的满江红品种,以采自湖南的4种满江红(CD,XT,HY和YZ)为试验材料,采用人工培养的方法对其繁殖系数、适宜生长温度、光照强度、pH及湿度等生物学特性进行研究.结果表明:培养21 d时4种满江红的繁殖系数均达最高,最佳培养条件为温度24~28℃,光照强度15 000~20 000 lx,pH 6.0,湿度60%~80%.其中,满江红YZ具有较强的繁殖性能和耐高温能力,XT具有较强的耐酸性能.%In order to screen and breed Azolla varieties with strong resistance, four Azolla samples (CD, XT, HY, YZ) were collected from Hunan Province, and the growth characteristics, such as propagation coefficient, temperature, light intensity, pH value and humidity were analyzed by using artificial culture method.Results: Reproduction coefficient was the highest in 21 days culture, the optimum culture condition was temperature 24~28℃, illumination intensity 15 000~20 000 lx, pH 6.0, humidity 60%~80%.Among the four Azolla varieties, YZ has strong reproductive performance and high temperature resistance, XT has strong acid resistance.