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Fig. 3 | BMC Plant Biology

Fig. 3

From: Exogenous auxin regulates multi-metabolic network and embryo development, controlling seed secondary dormancy and germination in Nicotiana tabacum L.

Fig. 3

Radicle weight (a), length (b) and surface area (c) of tobacco seed imbibed in supplementation IAA solution or ddH2O 24 h or untreated and then germinated on filter paper beds 156 h. Different letters indicate significant differences according to Duncan test (means ± SD, p < 0.05). Subscript 10, 100, 1000 indicate the concentration gradients

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