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한국식물학회 / v.50, no.3, 2007년, pp.351-357 
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( Interactive Effect of Sulfur and Nitrogen on Nitrate Reductase and ATP-Sulfurylase Activities in Relation to Seed Yield from Psoralea corylifolia L. ) |
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| 초 록 |
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| Field experiments were conducted to determine the interactive effect of sulfur (S) and nitrogen (N) applications on seed yield from Psoralea corylifolia L. Six treatments were tested: $T_1$ = control (without manure and fertilizers), $T_2$ = manure @ 9 kg $plot^{-1};(10;t;ha^{-1}$), $T_3=S_0N_{20}K_{40}P_{40}$, $T_4=S_{20}N_{20}K_{40}P_{40}$, $T_5=S_{20+20}N_{20}K_{40}P_{40}$, and $T_6=S_{20+20}N_{20+20}K_{40}P_{40}$. Activities of nitrate reductase (NR) and ATP-sulfurylase in the leaves were measured at various phenological stages. These two enzymes catalyze the rate-limiting steps in the respective assimilatory pathways for nitrate and sulfate. Enzyme activity was strongly correlated with seed yield, with the greatest performance being achieved with treatment $T_5$. This might be attributed to the optimization of leaf soluble protein and photosynthetic rate, both of which are influenced by S and N assimilation. |
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| 키워드 |
| ATP-sulfurylase;nitrate reductase;nitrogen;Psoralea corylifolia L.;seed yield;sulfur; |
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Journal of Plant Biology / v.50, no.3, 2007년, pp.351-357
한국식물학회
ISSN : 1226-9239
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO200734513388358)
언어 : 영어 |
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| 논문 제공 : KISTI 한국과학기술정보연구원 |
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