5个油茶物种的耐涝性

以5个油茶（Camellia spp.）物种1年生实生苗为试材,通过调查淹水处理后不同时间植株的受害情况对其耐涝性进行研究,结果表明：普通油茶（C.oleifera）和广宁红花油茶（C.semiserrata）具有较强的耐涝性,淹水处理32天才完全死亡,而香花油茶（C.osmantha）、博白大果油茶（C.gigantocarpa）和陆川油茶（C.vietnamensis）耐涝性极强,整个试验期60天后均有10％以上的植株还存活,5个物种的耐涝性由强到弱依次为香花油茶＞博白大果油茶＞陆川油茶＞广宁红花油茶＞普通油茶;5个物种内不同单株间耐涝性均有差异,其中香花油茶单株耐涝性分离最大,其次是博白大果油茶和陆川油茶.

Flooding Tolerance of Five Camellia Species

Using five annual Camellia seedlings as experiment materials, through investigating damaged circumstances after flooding treatment to study flooding tolerance at different times. The results showed that Camellia oleifera and C. semiserrata had the stronger flooding tolerance and died completely after 32 days, while the flooding tolerance of C. osmantha, C. gigantocarpa and C. vietnamensis was extremely strong with more than 10% plants still living per species during the whole experiment period （60 days）. The flooding tolerance of five camellia species from strong to weak in order： C. Osmantha 〉 C. gigantocarpa 〉 C. Vietnamensis 〉 C. semiserrata 〉 C. oleifera. There was differences between different individual in five species, and the separation degree of C. Osmantha was the largest followed by C. gigantocarpa and C. vietnamensis.