Abstract
Correlations between micronutrient concentrations in elongating leaf sheaths of sugar-cane and cane growth and sugar accumulation were studied in commercially grown sugar-cane in Hawaii. The data were analysed statistically with multiple regression techniques and equations derived from estimating tonnes cane per hectare (TCH) and tonnes sugar per hectare (TSH). When micronutrient levels only were used in calculating the regression equations, the resulting R2 values were low, i.e., approximately 0.18. However, inclusion of plant age at sampling and at harvest, sheath moisture content and radiant energy (J/cm2.day) significantly improved both the R2 values and the estimates of TCH and TSH.
