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Effects of calcium on emergence and seedling growth of castor bean under salinity stress


Affiliations
1 Key Laboratory of Crop Genetics and Physiology of Jiangsu Province, Yangzhou University, Yangzhou 225009, Jiangsu Province, China
2 Joint International Research Laboratory of Agriculture and Agri-Product Safety of Ministry of Education of China, Yangzhou University, Yangzhou 225009, China
 

Calcium Application, Castor Bean Plant, Emergence, Growth, Salinity.A growth chamber study was conducted to assess the interactive effects of salinity and CaCa2+ amendment on the emergence and early seedling growth of castor bean (Ricinus communis L.). Seedlings were cultured in wet sands filled with one-half Hoagland solution containing salts either at 0, 50 or 100 mM NaCl. Supplemental CaCl2 was added at molar mass ratio of NaCl and CaCl2 of 20 : 0, 20 : 1, 20 : 2 and 20 : 3. Increasing salinity level reduced emergence rate, height and leaf area by up to 34.0%, 26.1% and 46.0% respectively. Calcium amendment increased emergence, height, leaf area, dry plant weight, chlorophyll a, b, chlorophyll (a + b) and soluble protein by up to 22.1%, 13.7%, 21.3%, 30.3%, 28.6%, 24.0%, 25.8% and 42.4% respectively. The present study indicates that the negative effects of salinity on emergence and early seedling growth of castor bean could be lessened with exogenous application of CaCa2+ at appropriate concentrations.

Keywords

Calcium Application, Castor Bean Plant, Emergence, Growth, Salinity.
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  • Effects of calcium on emergence and seedling growth of castor bean under salinity stress

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Authors

Xiaoqian Guo
Key Laboratory of Crop Genetics and Physiology of Jiangsu Province, Yangzhou University, Yangzhou 225009, Jiangsu Province, China
Guisheng Zhou
Key Laboratory of Crop Genetics and Physiology of Jiangsu Province, Yangzhou University, Yangzhou 225009, Jiangsu Province, China
Guanglong Zhu
Joint International Research Laboratory of Agriculture and Agri-Product Safety of Ministry of Education of China, Yangzhou University, Yangzhou 225009, China
Xiurong Jiao
Joint International Research Laboratory of Agriculture and Agri-Product Safety of Ministry of Education of China, Yangzhou University, Yangzhou 225009, China

Abstract


Calcium Application, Castor Bean Plant, Emergence, Growth, Salinity.A growth chamber study was conducted to assess the interactive effects of salinity and CaCa2+ amendment on the emergence and early seedling growth of castor bean (Ricinus communis L.). Seedlings were cultured in wet sands filled with one-half Hoagland solution containing salts either at 0, 50 or 100 mM NaCl. Supplemental CaCl2 was added at molar mass ratio of NaCl and CaCl2 of 20 : 0, 20 : 1, 20 : 2 and 20 : 3. Increasing salinity level reduced emergence rate, height and leaf area by up to 34.0%, 26.1% and 46.0% respectively. Calcium amendment increased emergence, height, leaf area, dry plant weight, chlorophyll a, b, chlorophyll (a + b) and soluble protein by up to 22.1%, 13.7%, 21.3%, 30.3%, 28.6%, 24.0%, 25.8% and 42.4% respectively. The present study indicates that the negative effects of salinity on emergence and early seedling growth of castor bean could be lessened with exogenous application of CaCa2+ at appropriate concentrations.

Keywords


Calcium Application, Castor Bean Plant, Emergence, Growth, Salinity.

References





DOI: https://doi.org/10.18520/cs%2Fv116%2Fi12%2F2028-2035