Home Publications Tree Planters' Notes Tree Planters' Notes Volume 52, Number 1 (2007) Comparing Large Bareroot and Container Stock: Water Stress as Influenced by Peat and Soil Water Availability

Comparing Large Bareroot and Container Stock: Water Stress as Influenced by Peat and Soil Water Availability

Jutras, S., Thiffault, N., and Munson, A. D. Tree Planters' Notes 52(1):15-18. 2007.

To evaluate the effect of the rooting media on seedling planting shock in black spruce [Picea mariana (Mill.) BSP], we planted three large seedling stock types (containerized, containerized with washed root system, and bareroot) in pans filled with sand and created two contrasting watering regimes (well-watered and limited water). We measured shoot xylem water potential (x) weekly on seedlings from all treatment combinations during a 10-wk period. Over the entire sampling period, and independent of the watering regime, containerized seedlings with washed-root systems showed similar water potentials to bareroot seedlings. Both types presented more negative values than intact containerized seedlings. Differences in the water status of newly outplanted large containerized and bareroot seedlings seem to result mainly from the effect of the peat-based growing medium on water availability in the rooting zone.


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Author(s): S. Jutras, Nelson Thiffault, A. D. Munson

Publication: Tree Planters' Notes - Volumes 52, Number 1 (2007)

Section: 4

Volume: 52

Number: 1

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