数字农科院2.0

Influence of Salinity and Temperature on the Germination of Haloxylon ammodendron and Ceratoides arborescens

文献类型： 外文期刊

作者： Xue, Jian-Guo;Wang, Xian-Guo;Mao, Pei-Sheng;Zhao, Li;Han, Jian-Guo;Xue, Jian-Guo;Du, Xiang-Ge;Zhang, Tie-Jun

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期刊名称： JOURNAL OF ANIMAL AND VETERINARY ADVANCES

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收录情况： SCI

摘要： The effects of salinity and temperature on germination of Haloxylon ammodendron and Ceratoides arborescens were investigated in arid, saline areas in the North West of China. Seeds were exposed to salt solutions containing. 0-700 mM (mmol L-1) of NaCl and at constant temperatures of 10, 15, 25 and 35 degrees C in the dark). After seeds had been thus treated for 7 days, any ungerminated seeds were transferred to distilled water for a further 7 days to investigate the recovery of genninability. The data indicate that the germination percentage of two species was not affected by relatively low salinities at 10, 15, 25 and 35 C but that it was severely inhibited at high salinity; the optimum temperature for germination was 15 degrees C for two species; recovery germination was significantly higher from high salinity than from low salinity for H. ammodendron and C. arborescens at 10-25 degrees C, H. ammodendron seeds are able to maintain their viability during exposure to high NaCl (700 mM) and high temperatures (35 degrees C) and to recover their germination after transfer to distilled water; germination of C. arborescens seeds is permanently inhibited after exposure to high NaCl and to high temperature.

分类号： S

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