SPATIAL AND TEMPORAL RELATIONSHIPS BETWEEN GROWTH TRAITS AND METABOLIC HEAT RATES IN COAST REDWOOD

The relation of metabolic heat rates to growth of coast redwood (Sequo ia sempervirens (D. Don) Endl.) trees was studied as a function of tim e in the growing season and location within the plantation. Significan t within-clone variations in growth and metabolic heat rates were foun d among ramets growing in different sections of the plantation. Specif ic metabolic heat rates of all clones began to increase in early May, peaked in mid-July, and returned to a low level by September. Metaboli c heat rates of individual clones, averaged over a 5- to 6-week period , were strong predictors (R2 = 0.93) of clonal height growth during th at period.