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The breaking tensile strength (BTS) of seeds from the pedicel of E. sibiricus accessions at 0, 7, 14, 21, 28 days after heading (DAH): Time-course changes in seed shattering degrees of E. sibiricus cultivars (A) and wild accessions (B), and the average BTS value of cultivars and wild accessions at five developmental stages (C). Bars indicate the mean values ± standard deviation. ∗Represent significant difference of BTS value at p < 0.01 level.
