Effects of Salinity, Temperature, and Polyethylene Glycol on the Seed Germination of Sunflower (Helianthus annuus L.)
Salinization has severe influences on agriculture in the whole world. The main aims of this work were to evaluate osmotic effect and ion effect of NaCl on seed germination of three sunflower (Helianthus annuus L.) cultivars interacting with three alternating temperature regimes and to select the mos...
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| Format: | Article |
| Language: | English |
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Wiley
2014-01-01
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| Series: | The Scientific World Journal |
| Online Access: | http://dx.doi.org/10.1155/2014/170418 |
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| author | Zhihui Luan Moxin Xiao Daowei Zhou Hongxiang Zhang Yu Tian Yi Wu Bo Guan Yantao Song |
| author_facet | Zhihui Luan Moxin Xiao Daowei Zhou Hongxiang Zhang Yu Tian Yi Wu Bo Guan Yantao Song |
| author_sort | Zhihui Luan |
| collection | DOAJ |
| description | Salinization has severe influences on agriculture in the whole world. The main aims of this work were to evaluate osmotic effect and ion effect of NaCl on seed germination of three sunflower (Helianthus annuus L.) cultivars interacting with three alternating temperature regimes and to select the most salt tolerant cultivars to plant in the saline region. Seeds were germinated in the isotonic NaCl and polyethylene glycol (PEG) solutions of −0.45, −0.90, −1.34, −1.79, and −2.24 MPa at 10 : 20, 15 : 25, and 20 : 30°C temperature regimes. Both NaCl and PEG inhibited germination, but the effects of NaCl were less as compared to that of PEG, which means that adverse effects of PEG on germination were due to osmotic effect rather than specific ion accumulation. For the three cultivars, higher germination occurred at 10 : 20°C in NaCl treatments and at 20 : 30°C in the isotonic PEG treatments. Among the three cultivars, Sandaomei (SDM) is the most tolerant to salt and PEG stress. |
| format | Article |
| id | doaj-art-c89ff964d2284dd6beac248086e6e3e1 |
| institution | Kabale University |
| issn | 2356-6140 1537-744X |
| language | English |
| publishDate | 2014-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | The Scientific World Journal |
| spelling | doaj-art-c89ff964d2284dd6beac248086e6e3e12025-08-20T03:24:11ZengWileyThe Scientific World Journal2356-61401537-744X2014-01-01201410.1155/2014/170418170418Effects of Salinity, Temperature, and Polyethylene Glycol on the Seed Germination of Sunflower (Helianthus annuus L.)Zhihui Luan0Moxin Xiao1Daowei Zhou2Hongxiang Zhang3Yu Tian4Yi Wu5Bo Guan6Yantao Song7Institute of Grassland Science, Key Laboratory of Vegetation Ecology, Ministry of Education, Northeast Normal University, Changchun 130024, ChinaCollege of Automation, Harbin Engineering University, Harbin 150001, ChinaNortheast Institute of Geography and Agroecology, Chinese Academy of Sciences, Jilin 130102, ChinaNortheast Institute of Geography and Agroecology, Chinese Academy of Sciences, Jilin 130102, ChinaCollege of Animal Science and Technology, Jilin Agricultural University, Changchun 130118, ChinaEducational Institute of Jilin Province, Jilin 130022, ChinaYantai Institute of Coastal Zone Research, Chinese Academy of Sciences, Yantai 264003, ChinaCollege of Environment and Resources, Dalian Nationalities University, Dalian 116600, ChinaSalinization has severe influences on agriculture in the whole world. The main aims of this work were to evaluate osmotic effect and ion effect of NaCl on seed germination of three sunflower (Helianthus annuus L.) cultivars interacting with three alternating temperature regimes and to select the most salt tolerant cultivars to plant in the saline region. Seeds were germinated in the isotonic NaCl and polyethylene glycol (PEG) solutions of −0.45, −0.90, −1.34, −1.79, and −2.24 MPa at 10 : 20, 15 : 25, and 20 : 30°C temperature regimes. Both NaCl and PEG inhibited germination, but the effects of NaCl were less as compared to that of PEG, which means that adverse effects of PEG on germination were due to osmotic effect rather than specific ion accumulation. For the three cultivars, higher germination occurred at 10 : 20°C in NaCl treatments and at 20 : 30°C in the isotonic PEG treatments. Among the three cultivars, Sandaomei (SDM) is the most tolerant to salt and PEG stress.http://dx.doi.org/10.1155/2014/170418 |
| spellingShingle | Zhihui Luan Moxin Xiao Daowei Zhou Hongxiang Zhang Yu Tian Yi Wu Bo Guan Yantao Song Effects of Salinity, Temperature, and Polyethylene Glycol on the Seed Germination of Sunflower (Helianthus annuus L.) The Scientific World Journal |
| title | Effects of Salinity, Temperature, and Polyethylene Glycol on the Seed Germination of Sunflower (Helianthus annuus L.) |
| title_full | Effects of Salinity, Temperature, and Polyethylene Glycol on the Seed Germination of Sunflower (Helianthus annuus L.) |
| title_fullStr | Effects of Salinity, Temperature, and Polyethylene Glycol on the Seed Germination of Sunflower (Helianthus annuus L.) |
| title_full_unstemmed | Effects of Salinity, Temperature, and Polyethylene Glycol on the Seed Germination of Sunflower (Helianthus annuus L.) |
| title_short | Effects of Salinity, Temperature, and Polyethylene Glycol on the Seed Germination of Sunflower (Helianthus annuus L.) |
| title_sort | effects of salinity temperature and polyethylene glycol on the seed germination of sunflower helianthus annuus l |
| url | http://dx.doi.org/10.1155/2014/170418 |
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