Research Article 
Competitive Interactions Between the Perennial Shrub Ziziphus ummularia and an Annual Herb Rhynchosia minima
S. Shahid Shaukat, Imran Ali Siddiqui, Zarina Ali and Maria Hamid
Pakistan Journal of Biological Sciences, 2003, 6(9), 854-859.
Abstract
The investigation focuses on competitive interactions between individuals of the perennial shrub Ziziphus nummularia and the annual herb Rhychosia minima with the aid of nearest-neighbour analysis in a sub-tropical desert region. Both intraspecific and interspecific competitive interactions were detected between nearest-neighbouring pairs. The cover as well as reproductive potential of R. minima were significantly reduced when it established in the close vicinity of Z. nummularia.
ASCI-ID: 1-2722
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