Imbibition behavior and flooding tolerance of rapeseed seed (Brassica napus L.) with different testa color
文献类型: 外文期刊
作者: Zhang, X. K.;Chen, J.;Wang, H. Z.;Chen, L.;Li, J. N.
作者机构:
关键词: Brassica napus L.;Flood tolerance;Germination;Imbibition;Seed color;Testa
期刊名称: GENETIC RESOURCES AND CROP EVOLUTION
ISSN: 0925-9864
年卷期: 2008 年 55 卷 8 期
页码:
收录情况: SCI
摘要: 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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