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. 2022 Oct 20;13:1038684. doi: 10.3389/fpls.2022.1038684

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Copyright © 2022 Chabaud, Auriac, Boniface, Delgrange, Folletti, Jardinaud, Legendre, Pérez-Vich, Pouvreau, Velasco, Delavault and Muños

This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) and the copyright owner(s) are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.

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Root exudate activity of various Helianthus species on seed germination of two O. cumana populations. Maximum of germination stimulant activity of root exudates of 18 Helianthus accessions, 1 susceptible H. argophyllus and the susceptible control XRQ, on the seeds of the two O. cumana populations, E-BOU and G-RO (bar: ± SE), were determined from the time-response curves presented in the Supplementary File 7 . The average activity of root exudates of the most active week was used for the Figure 3 .