Research on the Variation of Functional Characteristics in Leaves of Wild Nitraria Tangutorum Introduced to a Common Garden
This study aimed to investigate the contributions of environmental and genetic factors to the variation in functional traits of Nitraria tangutorum leaves.The research sought to enhance understanding of its ecological adaptability by comparing the differences in leaf traits between various provenances and a common garden,using field investigation and common garden introduction experiment.The results showed that the degree of fleshiness and water content of N.tangutorum leaves remained relatively stable.Additionally,a significant correlation between the degree of fleshiness and water content was observed both in the common garden and the field.In the field,the growth of N.tangutorum leaves was limited by both nitrogen and phosphorus,whereas in the common garden,it was only limited by nitrogen.The correlations observed between carbon,nitrogen,phosphorus,and other traits in the field disappeared in the common garden.Furthermore,the phenotypic plasticity index of N.tangutorum leaves was lower in the common garden compared to the field.Redundancy analysis indicated that temperature was the primary factor influ-encing the functional traits of N.tangutorum leaves in the field,while precipitation played a decisive role in shaping the functional traits in the common garden.In summary,during the process of environmental adap-tation,N.tangutorum exhibited adaptive differentiation in leaf traits.The degree of fleshiness and the variation in water content were primarily influenced by genetic factors,while tissue density was signigi-cantly affected by the environment.Environmental changes were found to alter the utilization of nitrogen and phosphorus elements,and the common garden environment had an inhibitory effect on the expression of plasticity in N.tangutorum leaf traits.
万方数据
维普
