Özet:

This study was conducted to determine whether electrical conductivity and early radicle emergence count in ten white coat French bean seed lots were related to seedling emergence in waterlogged or field capacity sowing medium. Electrical conductivity (EC) measırements were performed by soaking seeds at 20 °C over 2, 4, 6, 18 and 24 h. Early radicle emergence percentages (RE) were counted after 24, 28, 32, 36, 40, 44 and 48 hours of germination. Seedling emergence percentages were tested by sowing at waterlogged or field capacity medium. Seedling emergence percentages were lower in waterlogged than in field capacity sowing in all seed lots. The EC and RE values were correlated with seedling emergence. In both waterlogged and field capacity sowings, the highest correlation values were observed in the 18 h (r=0.966; p<0.001; r=0.965, p<0.001) and 24 h of electrical conductivity (r=0.947, r=0.952, p<0.001) and in the 48 h of the RE test (r=0.905, r=0.918, p<0.001) with seedling emergence. Results showed that the seed vigour potential, in terms of emergence potential, of white coated French bean seed lots can be determined either through 18 h and 24 h EC readings or through 48 hours of early radicle emergence count during germination. Changes in seed vigour with respect to waterlogged or field capacity sowings were discussed for French bean seeds.

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