Analysis of the data indicated that development of the root system was inhibited when seeds were planted at a depth > 5cm and that root traits exhibited a decreasing trend in general with increasing soil depth ( Table 4 ). 3.5 Effect of sowing date and sowing depth on germination and seedling growth of P . ostii ‘Fengdan’ Sowing depth had a significant effect on the growth of P . ostii ‘Fengdan’ seedlings.
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Dormancy-release, germination and seedling growth of Paeonia ostii 'Fengdan' seeds under measures of physical and chemical treatment and sowing.
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Except for the leaves number, the other morphological indexes showed a trend of first increasing and then decreasing In general, results indicated that soaking duration also had an impact on seedling growth ( Table 2 ).
Seeds treated with 5 mmol/L SNP showed an increasing trend in the level of soluble sugar in leaves with increasing duration of seed soaking.