Abstract
In this study, the correlations among these characters were investigated in 18 rapeseed (Brassica napus L.) accessions with different seed coat color. The results indicated that seed water uptake and flooding tolerance were significantly correlated with seed color and melanin pigment content of testa. The red or black-seeded accessions had higher melanin content in testa, showed slower water uptake and lower leakage and higher flooding tolerance. The majority of yellow-seeded rapeseed accessions which had low melanin pigments content in testa showed a rapid water uptake and higher leakage than the red or black-seeded, which led to imbibition damage and lower flooding tolerance. The results suggest that the yellow-seeded cultivars experienced poor field emergence and more serious pre-harvest sprouting in raining weather than the dark-seeded cultivars. Some yellow-seeded accessions showed a slow imbibition behavior and relative high flooding tolerance, indicated these accessions can be used as a genetic resource to improve the flooding tolerance and reduce imbibition damage for the yellow-seeded B. napus L.
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This research project has been supported by 863 project (2006AA10Z1C2, 2006AA100106) from Ministry of Science and Technology of the P. R. of China. This support is highly appreciated.
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Zhang, X.K., Chen, J., Chen, L. et al. Imbibition behavior and flooding tolerance of rapeseed seed (Brassica napus L.) with different testa color. Genet Resour Crop Evol 55, 1175–1184 (2008). https://doi.org/10.1007/s10722-008-9318-x
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DOI: https://doi.org/10.1007/s10722-008-9318-x