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논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 발행연도
- 2019.1
- 수록면
- 75 - 80 (6page)
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Oilseed rape is known to crop having low nitrogen use efficiency (NUE) but requires high levels of N fertilizer. NUE is associated with N remobilization from source to sink organ, consequently affects seed yield. Remobilization of leaf N is also related to transport of C/N metabolites in phloem. However, interaction between seed yield and phloem transport was not fully documented. In response to seed yield, N and C metabolites and their transport into seed from bolting to pod filling stage investigated in two contrasting genotypes (Capitol and Pollen) cultivated under ample (HN) or limiting nitrate (LN) supply. Seed yield was significantly reduced in N limitation and its reduction rate was much lower in Capitol than in Pollen compared to HN treated plants. Amino acid and protein content was higher in Capitol than in Pollen at bolting stage. They gradually decreased during plant development but not significant between two cultivars and/or two treatments. Glucose, fructose and sucrose content were 1.8-,1.6- or 1.25-fold higher in LN condition than in HN condition, respectively. Amino acid and sucrose content in phloem were largely higher in Capitol than in Pollen under LN condition. These results indicate that the higher seed yield might be related to greater transport ability of amino acid and sucrose in phloem under LN condition.
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참고문헌 (23)
참고문헌 신청
Avice, J.C. / 2014 / Leaf senescence and nitrogen remobilization efficiency in oilseed rape (Brassica napus L.) / Journal of Experimental Botany 65:3813~3824
Baxter, C. J. / 2003 / Elevated sucrose-phosphate synthase activity in transgenic tobacco sustains photosynthesis in older leaves and alters development / Journal of Experimental Botany 54:1813~1820
Boussadia, O. / 2010 / Effects of nitrogen deficiency on leaf photosynthesis, carbohydrate status and biomass production in two olive cultivars ‘Meski’ and ‘Koroneiki’ / Scientia Horticulturae 123:336~342
Davis, J.S. / 1967 / A reevaluation of the roe procedure for the determination of fructose / Analytical Biochemistry 19:72~79
Dejoux, J. F. / 2000 / The fate of nitrogen from winter-frozen rapeseed leaves : mineralization, fluxes to the environment and uptake by rapeseed crop in spring / Plant and Soil 218:257~272
Baxter, C. J. / 2003 / Elevated sucrose-phosphate synthase activity in transgenic tobacco sustains photosynthesis in older leaves and alters development / Journal of Experimental Botany 54:1813~1820
Boussadia, O. / 2010 / Effects of nitrogen deficiency on leaf photosynthesis, carbohydrate status and biomass production in two olive cultivars ‘Meski’ and ‘Koroneiki’ / Scientia Horticulturae 123:336~342
Davis, J.S. / 1967 / A reevaluation of the roe procedure for the determination of fructose / Analytical Biochemistry 19:72~79
Dejoux, J. F. / 2000 / The fate of nitrogen from winter-frozen rapeseed leaves : mineralization, fluxes to the environment and uptake by rapeseed crop in spring / Plant and Soil 218:257~272
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