首页|期刊导航|中国农业科学（英文版）|Physiological Differences Between Yellow-Seeded and Black-Seeded Rapeseeds (Brassica napus L.) with Different Testa Characteristics During Artificial Ageing
中国农业科学（英文版）2005，Vol.4Issue(5)：355-361,7.
Physiological Differences Between Yellow-Seeded and Black-Seeded Rapeseeds (Brassica napus L.) with Different Testa Characteristics During Artificial Ageing
Physiological Differences Between Yellow-Seeded and Black-Seeded Rapeseeds (Brassica napus L.) with Different Testa Characteristics During Artificial Ageing
摘要
Abstract
Yellow-seeded rapeseed (Brassica napus L.) is a new kind of breeding resources with yellow color, increased oil and protein content and less unwanted crude fiber content due to the thinner and transparent testa compared with traditional black or brown-seeded rapeseed. To analyze the longevity of the yellow-seeded rapeseed during storage, the physiological differences between the yellow and black-seeded near-isogenic lines were studied by artificial ageing method. The testa rate, anthocyanin content and melanin content of yellow-seeded rapeseeds decreased by 20.1, 25.2, and 80.4% respectively than black-seeded rapeseed. During artificial ageing, the yellow-seeded rapeseed showed significantly different effect of ageing compared with the black-seeded, as demonstrated by faster deterioration with lower germination percentage, seed vigour index, reducing sugar and soluble protein contents than the black-seeded, as well as a drastic increase in electrical conductivity, malnodialdehyde (MDA) content and a rapid decrease in activities of antioxidant enzymes catalase (CAT)and superoxide dismutase (SOD). The results suggested that the transparent testa of the yellow-seeded rapeseed lost some abilities to protect the embryo against adverse environmental conditions and thus led to a poor storability.关键词
Brassica napus L./Yellow-seeded/Artificial ageing/DeteriorationKey words
Brassica napus L./Yellow-seeded/Artificial ageing/Deterioration分类
农业科技引用本文复制引用
ZHANG Xue-kun,YANG Gui-tang,CHEN Li,LI Jia-na,TANG Zhang-lin..Physiological Differences Between Yellow-Seeded and Black-Seeded Rapeseeds (Brassica napus L.) with Different Testa Characteristics During Artificial Ageing[J].中国农业科学（英文版）,2005,4(5):355-361,7.基金项目
The authors thank 863 Project of the Ministry of Science and Technology of P. R. China (AA2003207150),and 948 Project of the Ministry of Agricuture of P. R.China(2003-Q04)for financial support. （AA2003207150）
