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2014•Hubei nongye kexueRequires access

Effects of Nitrogen Deficiency on the Photosynthetic Characteristics of Different Varieties of Japonica Rice

WU Ya

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Abstract

Using 9516,Wuyujing, Zhendao8, Kitaake as materials, effects of nitrogen deficiency on the photosynthetic characteristics of different varieties of japonica rice were studied. The chlorophyll content,root-shoot ratio, photosynthetic rate(Pn), stomatal conductance(Gs), intercellular CO2(Ci) and transpiration rate(E) were studied. The results showed that chlorophyll content,Pn,Gsand E was decreased significantly in rice under nitrogen deficiency. Root-shoot ratio and Ciwas higher than that of control. Nitrogen deficiency had some effects on chlorophyll biosynthesis. The Pnof rice was decreased significantly. Dry matter accumulation was decreased significantly. Rrice root-shoot ratio was improved. Nitrogen was one of the necessary element for rice growth. The results will provide theoretic basis and technical approach for nitrogen use.

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What this paper is about

Using 9516,Wuyujing, Zhendao8, Kitaake as materials, effects of nitrogen deficiency on the photosynthetic characteristics of different varieties of japonica rice were studied. The chlorophyll content,root-shoot ratio, photosynthetic rate(Pn), stomatal conductance(Gs), intercellular CO2(Ci) and transpiration rate(E) were studied. The results showed that chlorophyll content,Pn,Gsand E was decreased significantly in rice under nitrogen deficiency. Root-shoot ratio and Ciwas higher than that of control. Nitrogen deficiency had some effects on chlorophyll biosynthesis. The Pnof rice was decreased significantly. Dry matter accumulation was decreased significantly. Rrice root-shoot ratio was improved. Nitrogen was one of the necessary element for rice growth. The results will provide theoretic basis and technical approach for nitrogen use.

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Available abstract

Using 9516,Wuyujing, Zhendao8, Kitaake as materials, effects of nitrogen deficiency on the photosynthetic characteristics of different varieties of japonica rice were studied. The chlorophyll content,root-shoot ratio, photosynthetic rate(Pn), stomatal conductance(Gs), intercellular CO2(Ci) and transpiration rate(E) were studied. The results showed that chlorophyll content,Pn,Gsand E was decreased significantly in rice under nitrogen deficiency. Root-shoot ratio and Ciwas higher than that of control. Nitrogen deficiency had some effects on chlorophyll biosynthesis. The Pnof rice was decreased significantly. Dry matter accumulation was decreased significantly. Rrice root-shoot ratio was improved. Nitrogen was one of the necessary element for rice growth. The results will provide theoretic basis and technical approach for nitrogen use.

Key concepts: Photosynthesis, Transpiration, Nitrogen, Chlorophyll, Shoot, Japonica, Stomatal conductance, Nitrogen deficiency

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Effects of Nitrogen Deficiency on the Photosynthetic Characteristics of Different Varieties of Japonica Rice — Research Paper | ScholarLens