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한국식물학회 / v.44, no.1, 2001년, pp.12-16 
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( Effects of Elevated $CO_2$ and Nitrogen on Growth of Poa pratensis (L.) ) |
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| 초 록 |
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| The growth responses of a grass, Poa pratensis, to elevated $CO_2$ and nitrogen were investigated. Light-saturated photosynthetic rate per unit leaf area increased with exposure to elevated $CO_2$, while dry weight did not respond to increased $CO_2$. Patterns of biomass allocation within plants, including leaf area, leaf area ratio, specific leaf area, and root to shoot ratios, were not altered by elevated $CO_2$, but changed considerably with N treatment. Shoot and whole-plant tissue N concentrations were significantly diluted by elevated $CO_2$ (Turkey test, p < 0.05). Total N content did not differ significantly among $CO_2$ treatments. The absence of a concomitant increase in N uptake under elevated $CO_2$may have caused a dilution in plant tissue (N), probably negating the positive effects of increased photosynthesis on biomass accumulation. |
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| 키워드 |
| Elevated $CO_2$;Nitrogen;Patterns of biomass allocation;Photosynthesis; |
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Journal of Plant Biology / v.44, no.1, 2001년, pp.12-16
한국식물학회
ISSN : 1226-9239
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO200111921138613)
언어 : 영어 |
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| 논문 제공 : KISTI 한국과학기술정보연구원 |
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