| Effect of polyethylene glyco stress on seedling growth and seed germination of tomato with gibberellin soaking |
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| DOI：10.7606/j.issn.1000-7601.2009.04.26 |
| Key Words: polyethylene glycol gibberelin acid tomato germination seedling growth chlorophyll |
| Author Name | Affiliation | | LU Biao | Department of Agronomy, Hexi University, Zhangye, Gansu 734000, China
Key Laboratory of Resources and Environment Chemistry of West China, Institute of Hexi Oasis Agriculture, Zhangye, Gansu 734000, China | | XU Yaozhao | Department of Agronomy, Hexi University, Zhangye, Gansu 734000, China
Key Laboratory of Resources and Environment Chemistry of West China, Institute of Hexi Oasis Agriculture, Zhangye, Gansu 734000, China | | WANG Zhijiang | Department of Agronomy, Hexi University, Zhangye, Gansu 734000, China
Key Laboratory of Resources and Environment Chemistry of West China, Institute of Hexi Oasis Agriculture, Zhangye, Gansu 734000, China | | FAN Yanling | Department of Agronomy, Hexi University, Zhangye, Gansu 734000, China | | YU Yingjun | Department of Agronomy, Hexi University, Zhangye, Gansu 734000, China |
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| Abstract: |
| The tomato seedlings were used as experimental materials, and the effects of seed soaking with Gibberellic Acid (GA3) with the concentration of 50 mg/g and tap water with the different concentrations polyethylene glycol (0, 40, 80, 120 mg/g) stress on the germination and seedling growth of tomato were investigated. The result showed that polyethylene glycol with the concentration of 40 mg/g increased tomato seed's germination rate, germination index, seedling height and root length, while polyethylene glycol with the concentration of 120 mg/g decreased obviously tomato seed's germination rate, germination index, seedling height and root length. Different concentration's polyethylene glycol decreased obviously the seedling chlorophyll content. Soaking seeds with GA3 with the concentration of 50 mg/g increased obviously tomato seed's germination rate, germination index, seedling height, root length and chlorophyll content under polyethylene glycol stress. So soaking seeds with 50 mg/g GA3 promotes tomato seedling's growth. |
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