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Nat Prod Commun ; 8(1): 15-20, 2013 Jan.
Article in English | MEDLINE | ID: mdl-23472450

ABSTRACT

The present study assesses whether the germination and establishment success of Argania spinosa seeds are affected by the environmental conditions under which the mother plant has grown. Seeds from three populations with different climatic conditions and herbivory intensity were collected and sown in the laboratory after different treatments. Our study suggests that the seed germination process and initial stages of seedling growth are adaptive. Seeds from the population of Agadir with the highest herbivory pressure and high air relative humidity in summer (due to the proximity to the sea) were stimulated by acid treatment, and showed a lower root/stem ratio, which allows them to take advantage of the atmospheric water resources. Seeds from the Mountain population, where the most arid environmental conditions were found, produced early-germinating seeds with the highest root/stem ratio that would facilitate seedling establishment when the harshest environmental conditions appear in summer.


Subject(s)
Climate , Germination , Herbivory , Sapotaceae/growth & development , Seedlings/growth & development , Animals , Ecosystem , Morocco
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