Container Size Affects Ligustrum Growth and Nitrogen Use

in HortScience
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  • 1 Environmental Horticulture Dept., Univ. of Florida, Gainesville, FL 32611

Three-month-old rooted cuttings of Ligustrum japonicum Thunb. were planted in a 2 pine bark: 1 Canadian peat: 1 sand substrate (by volume) in either 0.75- or 2.2-liter containers and grown for 17 weeks in a greenhouse. One-half of the plants grown in 0.75-liter containers were transplanted to 2.2-liter containers after 11 weeks and grown for 6 weeks in 2.2-liter containers. Shoot dry weights were highest for plants grown 17 weeks in 2.2-liter containers and smallest for plants grown 17 weeks in 0.75-liter containers. Root dry weights were similar for plants grown 17 weeks in 0.75-liter containers. The percentage of applied N used by shoots and roots (44% and 8%, respectively) was highest for plants grown 17 weeks in 2.2-liter containers and smallest (30% and 5%, respectively) for plants grown 17 weeks in 0.75-liter containers.

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