| 盐胁迫对不同西瓜砧木品种幼苗生长及光合作用的影响 |
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| 引用本文： | 崔聪聪,郭世荣,冯吉庆,李军.盐胁迫对不同西瓜砧木品种幼苗生长及光合作用的影响[J].内蒙古农业大学学报(自然科学版),2007,28(3):134-139. |
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| 作者姓名： | 崔聪聪 郭世荣 冯吉庆 李军 |
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| 作者单位： | 1. 南京农业大学园艺学院,南京,210095
2. 江宁区蔬菜技术推广站,南京,210003 |
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| 基金项目： | 江苏省自然科学基金;江苏省农业三项工程项目 |
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| 摘 要： | 采用营养液栽培,以西瓜嫁接砧木丰源先锋、超丰抗生王、FR-将军为材料,研究了盐胁迫对西瓜砧木苗期生长和光合特性的影响。结果表明,盐胁迫条件下,各砧木品种生长和光合作用均受到不同程度抑制。各品种株高、茎粗、根系体积等均低于对照,地上、地下部生物量显著下降;净光合速率、气孔导度下降,光合色素含量上升,光合作用受到抑制。不同砧木品种对盐胁迫反应不同,超丰抗生王各项指标变化幅度小于丰源先锋和FR-将军,植株受盐胁迫伤害较轻,表明超丰抗生王耐盐性较强。
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| 关 键 词： | 西瓜砧木 盐胁迫 生长 光合 叶绿素 |
| 文章编号： | 1009-3575（2007）03-0134-06 |
| 修稿时间： | 2007-05-23 |
EFFECTS OF NACL STRESS ON GROWTH AND PHOTOSYNTHESIS OF DIFFERENT WATERMELON STOCKS |
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| CUI Cong - cong, GUO Shi - rong , FENG Ji - qing.EFFECTS OF NACL STRESS ON GROWTH AND PHOTOSYNTHESIS OF DIFFERENT WATERMELON STOCKS[J].Journal of Inner Mongolia Agricultural University(Natural Science Edition),2007,28(3):134-139. |
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| Authors: | CUI Cong - cong GUO Shi - rong FENG Ji - qing |
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| Institution: | College of Horticulture, Nanjing Agricultural University, Nanfing 210095, Jiangning District Vegetable Techndogy Extension Station 210003, China |
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| Abstract: | The study was conducted in nutrient solution to investigate the effects of NaCl stress on growth and photosynthetic characteristics of watermelon stocks,including pumpkin cultivar(Feng yuan xian feng) and calabash cultivar(Chao feng kang sheng wang,FR-Jiang jun).Results showed that the growth and photosynthesis in every stock cultivar were restrained to different extent under NaCl stress.Under NaCl stress plant height,stem diameter,total volume of roots,were lower than those of control.The dry and fresh weight of seedling decreased markedly.The net photosynthetic rate and stomatal conductance also decreased,but the content of photosynthetic pigment increased.Photosynthesis was restrained under NaCl stress.Different stocks were different to salt tolerance.Changes of all kinds of indexes in Chao feng kang sheng wang were less than those in Feng yuan xian feng and Jiang jun.All that suggested Chao feng kang sheng wang suffered the lest salt stress and had the best salt tolerance in all watermelon stocks in our experiment. |
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| Keywords: | Watermelon stock naCl stress growth photosynthesis chlorophyll |
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