摘要
试验研究Zn2+活度对不同耐低Zn水稻基因型生长及Zn吸收的影响结果表明,Zn2+活度较低时水稻生长发育受抑,其株高、叶片数、干物质积累量均随Zn2+活度的降低而下降,而根冠比、地上部和地下部Zn浓度之比则升高,且低Zn条件下耐低Zn水稻基因型“IR8192”的Zn转运能力、维持根系生长能力均高于Zn敏感水稻基因型“IR26”。
The effects of Zn^2＋ activity on seedling growth and Zn uptake of rice differing in resistance to Zn-defieit show that when the Zn^2＋ activity is low, the growth and development of rice is inhibited; the plant height, leaf number, and dry matter accumulation of rice decrease with the decreasing of Zn^2＋ activity, while the ratio of root to shoot and the Zn concentration ratio of shoot to root increase; Zn transferring capacity, supporting the root growth capacity of Zn-efficient rice genotype＇ IR8192＇are higher than those of Zn-inefficient rice genotype＇ IR26＇as Zn deficiency.
出处
《中国生态农业学报》
CAS
CSCD
2006年第2期56-58,共3页
Chinese Journal of Eco-Agriculture
基金
国家杰出青年基金项目(39925024)部分研究内容
