| 低温贮藏对草莓苗的生理变化及生长发育的影响 |
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| 引用本文： | 于红梅,袁华招,关玲,陈晓东,唐山远,王庆莲,赵密珍.低温贮藏对草莓苗的生理变化及生长发育的影响[J].中国农学通报,2021,37(9):35-41. |
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| 作者姓名： | 于红梅 袁华招 关玲 陈晓东 唐山远 王庆莲 赵密珍 |
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| 作者单位： | 1.江苏省农业科学院果树研究所,江苏省高效园艺作物遗传改良重点实验室,南京 210014;2.句容市白兔草莓研究院,江苏镇江 212403 |
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| 基金项目： | 江苏省农业科技自主创新资金项目“草莓周年育苗关键技术研发”(CX183031);江苏省苏北专项“草莓壮苗规模化繁育关键技术集成创新与应用”(LYG-SZ201901) |
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| 摘 要： | 为了建立草莓苗安全冷藏体系,本研究以草莓品种‘宁玉’为试材,测定了低温对草莓苗叶绿素、SOD、POD、MDA、可溶性糖、脯氨酸、内源激素含量等生理指标、物候期和产量的影响。结果表明叶绿素a、b含量及其比值、SOD值和可溶性糖含量逐渐下降,而POD值逐渐升高。处理21天时叶绿素a下降幅度为0.28 mg/g,SOD下降了46.5%,POD上升了428.73%;脯氨酸含量在处理第3天时急剧增加,之后逐渐下降;MDA含量整体呈下降趋势;GA3和IAA的含量先降低后升高,ABA含量呈现相反变化,处理8天分别达到谷值和峰值;处理8天以内草莓物候期提前、早期产量增加。5℃条件下,草莓种苗可以安全贮藏8天,达到早熟和稳产。
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| 关 键 词： | 草莓苗 低温贮藏 生理变化 生长发育 产量 早熟 稳产 |
| 收稿时间： | 2020-06-20 |
Low Temperature Storage: Effect on the Physiological and Developmental Change of Strawberry Ramets |
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| Yu Hongmei,Yuan Huazhao,Guan Ling,Chen Xiaodong,Tang Shanyuan,Wang Qinglian,Zhao Mizhen.Low Temperature Storage: Effect on the Physiological and Developmental Change of Strawberry Ramets[J].Chinese Agricultural Science Bulletin,2021,37(9):35-41. |
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| Authors: | Yu Hongmei Yuan Huazhao Guan Ling Chen Xiaodong Tang Shanyuan Wang Qinglian Zhao Mizhen |
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| Institution: | 1.Institute of Pomology, Jiangsu Academy of Agricultural Sciences, Jiangsu Key Laboratory for Horticultural Crop Genetic Improvement, Nanjing 210014;2.Jurong Baitu Strawberry Research Institute, Zhenjiang Jiangsu 212403 |
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| Abstract: | To establish a safe cold storage system for strawberry ramets, the strawberry variety ‘Ning Yu’ was used as material. The effects of low temperature on the physiological indexes such as the contents of chlorophyll, SOD, POD, MDA, soluble sugar, proline and endogenous hormones, phenological phase and yield were measured. The results showed that under the low temperature, the contents of chlorophyll a, chlorophyll b and soluble sugar, the ratio of chlorophyll a/b, SOD activity and the soluble sugar were decreased, however POD activity was increased. After the treatment of 21 days, the decreased range of chlorophyll a content was 0.28 mg/g, SOD was decreased by 46.5%, while POD was increased by 428.73%. The content of proline was increased quickly on the 3 rd day of treatment, and then decreased gradually. MDA content showed a descending trend as a whole. GA3 and IAA were decreased first and then increased, but the content of ABA was increased rapidly first and then decreased, reaching valley and peak respectively at the 8th day of the treatment. In addition, within 8 days of low temperature storage, the phenological phase of strawberry was ahead of schedule, and the early-period yield was increased. In summary, under the storage condition of 5℃ low temperature, the strawberry ramets can be safely stored for 8 days, and early-mature and stable production could be achieved. |
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| Keywords: | strawberry ramets low temperature storage physiological change growth and development yield early-mature stable production |
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