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Specific activity of cellulase in abscission zone of different E. sibiricus accessions at 0, 7, 14, 21, and 28 days after heading (DHA). Average CE activity of cultivars and wild accessions at five developmental stages (A). Time-course changes in CE activity of wild accessions (B) cultivars (C). Bars indicate the mean values ± standard deviation. ∗Represents significant difference of CE activity value at p < 0.01 level.
