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Table 1 Evaluation of diverse common bean germplasm for iron reductase activity (μmol Fe reduced/g FW/h) in 12-d-old plants grown under iron-limited (2 μM Fe) or iron-sufficient (15 μM Fe) conditions, and for seed iron concentration in mature, soil-grown plants.

From: Variation and inheritance of iron reductase activity in the roots of common bean (Phaseolus vulgaris L.) and association with seed iron accumulation QTL

Genotype

Genepool1

Seed Colour

Seed Fe

Level2

Iron reductase activity in 2 µM Fe-grown plants

Iron reductase activity in 15 µM Fe-grown plants

Cultivated

G11350

M

Small red

High (64)

0.835

0.350

G11360

M

Medium purple

Low (43)

0.454

0.165

G19227A

M

Small black

High (65)

0.879

0.047

G19833

A

Large yellow mottled

High (70)

1.054

0.123

G19839

A

Large yellow mottled

High (59)

1.083

0.200

G21078

A

Large cream

Low (36)

0.049

0.307

G21212

M

Small black

ND

1.089

0.482

G21242

A

Large cream mottled

High (90)

0.713

0.528

G21657

A-M

Medium cream mottled

High (85)

0.639

0.231

Wild

G23585

A

Very small grey speckled

ND

0.048

0.036

G24390

M

Very small grey speckled

ND

0.187

0.036

G24404

C

Very small grey speckled

ND

1.039

0.705

G24423

C

Very small grey speckled

ND

0.180

0.342

  1. 1/*Genepools: A = Andean wild or cultivated, C = Colombian wild, M = Mesoamerican wild or cultivated.
  2. 2/Iron level in parts per million (ppm or mg/kg) from Islam et al. (2002) and CIAT unpublished (iron level given in parentheses [ppm; dry wieght basis]; high = above 55 ppm, low = below 55 ppm, with 55 ppm being the average iron concentration for the crop), ND = not determined.