Scientia Agricultura Sinica ›› 2005, Vol. 38 ›› Issue (04): 843-848 .doi: 10.3864/j.issn.0578-1752.at-2004-2549

• RESEARCH NOTES • Previous Articles     Next Articles

Alleviatory Effects of Phosphorus on Growth Inhibition of Seawater-Stressed Aloe Seedlings

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  1. 南京农业大学资环学院
  • Received:2004-07-08 Revised:2004-11-05 Online:2005-04-10 Published:2005-04-10

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Abstract: Effects of different P levels on dry matter accumulation, leaf elongation rate, chlorophyll content, root vigor, K+, Na+, Ca2+, Mg2+, Cl- contents of aloe seedings under 30% concentration of seawater were studied. The results showed that addition of P increased significantly plant dry weight, promoted markedly leaf elongation rate, chlorophyll contents and root vigor, decreased the electrolytic leakage of leaves. Addition of P also decreased significantly Na+, Cl- contents, promoted K+, Ca2+ transport to shoot, maintained high K+/ Na+ ,Ca2+/ Na+ and SK,Na in aloe leaves, improved ion homeostasis in leaves, this was one of the main causes of the alleviatory effects of P on growth inhibition of seawater-stressed aloe seedlings.

Key words: Aloe, P, Seawater stress, Growth, Alleviation

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