| Pak. J. Bot., 33(1): 7-11, 2001. | Back to Contents | ||||
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Updated: 01-12-10 | ||||
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EFFECT OF DIFFERENT RHIZOBIAL STRAINS ON THEGROWTH AND NITROGEN UPTAKE IN ACACIAS UNDER SALINE SOIL UBAIDULLAH SHIRAZI, R. ANSARI, MUKHTIAR ALI, S.M. ALAM, BARKAT KHANZADA, AISHA SHREEN, M.A. KHAN, S.M. MUJTABA AND MUHAMMAD ALI
Abstract: A field trial was conducted at NIA experimental farm, Tandojam, Pakistan
to study the effect of different Rhizobial strains on the survival and
growth of two Australian Acacias viz., Acacia ampliceps
and Acacia stenophylla under saline condition. Inoculation of
tree seedlings improved survival and growth of both Acacia species
as compared to uninoculated ones. A. stenophylla showed
higher survival as compared to A. ampliceps, whereas the over
all performance of A. ampliceps was much better. A.
ampliceps inoculated with rhizobial strain no. 63/1 showed greater
plant height, stem diameter and plant canopy followed by 403/1 and 399/1.
Performance of tree seedlings with the application of 100 mg N/kg of
soil alone were better as compared to two strains of Rhizobia. A.
stenophylla, inoculated with strain no. 403/1 proved better for
its symbiotic partner followed by 63/1. The uptake of nitrogen by plant
also increased in inoculated plants but the values for N-content in
seedlings without N application were higher. Plant Physiology Division, Nuclear Institute of Agriculture, Tandojam, Pakistan. |
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