Water Loss, Embolism, and Post-transplant Growth of Acer rubrum and Crataegus phaenopyrum as Influenced by Length of Storage

in HortScience
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  • 1 Dept. of Horticulture, Virginia Tech, Blacksburg, VA 24061

Year-old seedlings of Acer rubrum L. and Crataegus phaenopyrum (L.f.) Medic. were grown for 1 year in a Groseclose silty clay loam. Seventy-two plant per species were harvested on 15 Dec. 1995 and weighed. Plants were stored at 4°C for 0, 1, 3, 5, 10, or 15 weeks. At the end of each storage period, 12 plants were weighed to determine water loss. Six plants were then sacrificed to determine percent embolism, and six plants were planted in a pine bark media and grown in a glasshouse for 15 weeks to determine the influence of storage on post-transplant growth and embolism recovery. Length of storage had no influence on embolism of Crataegus. Embolism of Acer increased linearly with increasing length of storage. Embolism was greater for Crataegus compared to Acer at each harvest. Water loss for both species increased linearly as time of storage increased.

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