接种嗜盐固氮菌的白骨壤和桐花树幼苗的生长情况

Growth of Avicennia marina and Ceriops decandra seedlings inoculated with halophilic azotobacters.

作者信息

Ravikumar S, Kathiresan K, Alikhan S Liakath, Williams G Prakash, Gracelin N Anitha Anandha

机构信息

Department of Oceanography and coastal area studies, Alagappa University, Thondi-683409, India.

出版信息

J Environ Biol. 2007 Jul;28(3):601-3.

PMID:18380082

Abstract

Inoculation of azotobacter has significant positive effects on the growth characteristics and pigments in mangrove seedlings of Avicennia marina and Ceriops decandra. The bacterial inoculation significantly increased the root dry biomass at the maximum of 75.8% at 30 gl(-1) salinity in Ceriops decandra. But in Avicennia marina, the shoot dry biomass was increased significantly at the maximum of 56.12% at 30 gl(-1) salinity in general, the Azotobacter beijerinkii improved the growth characteristics better in both species of mangroves preferably at higher salinity levels in A. marina and at a range of salinity in C. decandra. The results recommend this forraising vigorous seedlings under nursery conditions.

摘要

接种固氮菌对白骨壤和桐花树这两种红树幼苗的生长特性和色素有显著的积极影响。在桐花树中，接种细菌使根干生物量显著增加，在盐度为30 g l(-1)时最高增加了75.8%。但在白骨壤中，地上部干生物量总体上在盐度为30 g l(-1)时显著增加，最高增加了56.12%。一般来说，拜氏固氮菌在这两种红树中都能更好地改善生长特性，在白骨壤中较高盐度水平下效果更佳，在桐花树中则在一定盐度范围内效果较好。这些结果表明，在苗圃条件下，这有助于培育出健壮的幼苗。