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Potassium Deficiency Increases Specific Leaf Weights and Leaf Glucose Levels in Field-Grown Cotton

^a USDA-ARS, Crop Genetics and Production Res. Unit, P.O. Box 345, Stoneville, MS 38776 USA

View larger version (24K): [in a new window]   Fig. 1 Specific leaf weights (SLW) averaged across four cotton genotypes as affected by two K fertility levels (0 and 112 kg K ha-1) at different days after planting (DAP) in 1993 and in 1994 at Stoneville, MS. Error bars indicate LSD (0.05)

View larger version (26K): [in a new window]   Fig. 2 Leaf glucose concentrations averaged across four cotton genotypes as affected by two K fertility levels (0 and 112 kg K ha-1) at different days after planting (DAP) in 1993 and in 1994 at Stoneville, MS. Error bars indicate LSD (0.05)

View larger version (25K): [in a new window]   Fig. 3 Leaf fructose concentrations averaged across four cotton genotypes as affected by two K fertility levels (0 and 112 kg K ha-1) at different days after planting (DAP) in 1993 and in 1994 at Stoneville, MS. Error bars indicate LSD (0.05); absence of bar indicates nonsignificance

View larger version (27K): [in a new window]   Fig. 4 Leaf sucrose concentrations averaged across four cotton genotypes as affected by two K fertility levels (0 and 112 kg K ha-1) at different days after planting (DAP) in 1993 and in 1994 at Stoneville, MS. Error bars indicate LSD (0.05); absence of bar indicates nonsignificance

View larger version (26K): [in a new window]   Fig. 5 Leaf starch concentrations averaged across four cotton genotypes as affected by two K fertility levels (0 and 112 kg K ha-1) at different days after planting (DAP) in 1993 and in 1994 at Stoneville, MS. Error bars indicate LSD (0.05); absence of bar indicates nonsignificance