751 PB 117 ROOT AND SHOOT GROWTH PATTERNS OF `MAURITIUS' LYCHEE TREES
`Mauritius' lychee (Litchi chinensis Sonn.) trees were planted in root observation chambers in July 1990 to determine the pattern of root and shoot growth during a 12 month period. Root and shoot lengths were measured at intervals ranging from 7-18 days, from Aug. 1990 until Aug. 1991. During each period of active canopy growth, up to six shoots were tagged and measured. Root growth was determined by measuring tracings the extension of each root in a visible plane from the glass wall of the observation chambers. Shoot growth was cyclic, with distinct periods of extension followed by no extension. Alternatively, root growth was fairly continuous with only a few periods of no apparent extension. There were no consistent relationships observed between root and shoot growth patterns.