氮肥种类与旌量对油菜种子生育酚的影响

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Bibliographic Details
Published in浙江大学学报：B卷英文版 Vol. 15; no. 2; pp. 181 - 193
Main Author Nazim HUSSAIN, Hui LI Hui LI Yu-xiao JIANG Zahra JABEEN Imran Haider SHAMSI Essa ALl, Li-xi JIANG
Format Journal Article
LanguageEnglish
Published 2014
Subjects
尿素
氮肥施量
油菜
生育酚
硝酸氨
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Bibliography:Tocopherols （Tocs） are vital scavengers of reactive oxygen species （ROS） and important seed oil quality indicators. Nitrogen （N） is one of the most important fertilizers in promoting biomass and grain yield in crop production. However, the effect of different sources and application rates of N on seed Toc contents in oilseed rape is poorly understood. In this study, pot trials were conducted to evaluate the effect of two sources of N fertilizer （urea and ammonium nitrate）. Each source was applied to five oilseed rape genotypes （Zheshuang 72, Jiu-Er-1358, Zheshuang 758, Shiralee, and Pakola） at three different application rates （0.41 g/pot （N1）, 0.81 g/pot （N2）, and 1.20 g/pot （N3））. Results indicated that urea increased α-, y-, and total Toc （T-Toc） more than did ammonium nitrate. N3 was proven as the most efficient application rate, which yielded high contents of y-Toc and T-Toc. Highly significant correlations were observed between Toc isomers, T-Toc, and α-/y-Toc ratio. These results clearly demonstrate that N sources and application rates significantly affect seed Toc contents in oilseed rape.
33-1356/Q
Oilseed rape （Brassica napus L.）, Nitrogen rate, Urea, Ammonium nitrate, Tocopherol
ISSN:1673-1581
1862-1783