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. 2020 Sep 15;11:562937. doi: 10.3389/fgene.2020.562937

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Copyright © 2020 Cai, He, Feng, Liang, Wang, Ding and Tian.

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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Effect of heat stress on pollen viability and pollination properties of SDWG005 and MH101. (A,B) Differences in pollen viability of SDWG005 (heat-tolerant) and MH101 (heat-susceptible) exposed eight days to different temperature treatments. (C) The percentage of basal dehiscent anthers under high-temperature treatments. (D) The percentage of stigma with ≥ 20 pollen grains at anthesis. CK, T36 and T38 indicate normal temperature (T_max = 28°C) and high temperatures T36 (T_max = 36°C) and T38 (T_max = 38°C). Each data point represents the mean ± SD (n = 3) of three biological replicates. Significant differences are calculated by One-way ANOVA with Duncan’s multiple test (SAS Institute, Inc., Cary, NC, United States). Different letters indicate statistical differences between samples at P = 0.05.