Hormone type, soaking duration and seed coating affect dormancy and germination of pennycress (Thlaspi arvense) lines

Establishment of pennycress is key to ensure uniform stands and maximise canopy closure in autumn. Past work has demonstrated that selected seed treatments could improve germination and establishment, but the optimisation of these processes to minimise inputs and time have not been assessed. The objective of this work was to evaluate seed enhancement technologies (hormone application by soaking and seed coating) to overcome seed dormancy and/or enhance germination. Two black-seeded lines (‘MN106NS’ and ‘ARV1’) and one golden-seeded line (‘tt8-t/ARV1’) were examined. Seeds were soaked in gibberellic acid (GA4+7) or benzyladenine (6-BA), or distilled water for different durations (30, 60, 240 minutes) and compared to an unsoaked control. Results showed that the GA treatment significantly increased germination, particularly for ‘ARV1’ and ‘MN106NS’ lines. Seed coating increased seed diameter but did not enhance germination; instead, it hindered ‘tt8-t/ARV1’ germination by 99-100%. The stud..., , # Hormone type, soaking duration and seed coating affect dormancy and germination of pennycress (Thlaspi arvense) lines

Dataset DOI: [10.5061/dryad.51c59zwmm](10.5061/dryad.51c59zwmm)

## Description of the data and file structure

Data contained in this entry focuses solely on germination data after pennycress lines were treated with various processes. The Pellet_soak file contains black-seeded and golden-seeded pennycress lines and their germination after being soaked in water, gibberellic acid A4+A7, or benzyladenine for 30, 60, or 240 minutes. Total recorded germination on days 4, 7, and 10 are shared. The file called Pellet_process contains germination data of pennycress seeds after undergoing different intensities of processing that seeds will experience during seed pelleting. Seeds were stopped at different points in the pellet-building process to see if the increased amount of handling and agitation was contributing to changes in germination. Again, germination totals on days 4...,