摘要
Effects of Glomus mosseae and water stress on morphology and fractal characteristic of root system in Broussonetia papyrifera were studied in this paper based on scanner-based image analysis. The results showed that drought and VAM inoculation had a large, significant effect on plant development. Biomass, total length, surface area, volume, number of root nodes, average diameter and fractal dimension of root system in B. papyrifera decreased with the reduction of soil moisture, while they were increased by VAM inoculation. Special root length in non-AM plants increased when soil moisture was reducing, but it was decreased by VAM inoculation. It was concluded that G. mosseae inoculation improved the drought resistance of B. papyrifera, especially in moderate stressed conditions. The contribution of AM symbiosis to plant to avoid the stress or to increase its tolerance might be the result of modification of root morphology and fractal character.
Effects of Glomus mosseae and water stress on morphology and fractal characteristic of root system in Broussonetia papyrifera were studied in this paper based on scanner-based image analysis. The results showed that drought and VAM inoculation had a large, significant effect on plant development. Biomass, total length, surface area, volume, number of root nodes, average diameter and fractal dimension of root system in B. papyrifera decreased with the reduction of soil moisture, while they were increased by VAM inoculation. Special root length in non-AM plants increased when soil moisture was reducing, but it was decreased by VAM inoculation. It was concluded that G. mosseae inoculation improved the drought resistance of B. papyrifera, especially in moderate stressed conditions. The contribution of AM symbiosis to plant to avoid the stress or to increase its tolerance might be the result of modification of root morphology and fractal character.
出处
《林业科学》
EI
CAS
CSCD
北大核心
2007年第7期142-147,共6页
Scientia Silvae Sinicae
基金
国家自然科学基金(30370279
30670334)。
关键词
水分胁迫
摩西球囊霉
构树
根系形态
分形维数
water stress
Glomus mosseae
Broussonetia papyrifera
root morphology
fractal dimension
