| 齐翎子,庞夫花,王庆莲,徐红梅,唐山远,赵密珍.磷酸二氢钾喷施对草莓苗生长和花芽分化的影响[J].中国南方果树,2025,54(5): |
| 磷酸二氢钾喷施对草莓苗生长和花芽分化的影响 |
| Effects of Potassium Dihydrogen Phosphate Spraying by Leaf on the Growth and Floral Bud Differentiation of Strawberry Seedlings |
| 投稿时间：2024-12-26 修订日期：2025-02-09 |
| DOI： |
| 中文关键词: 草莓苗 磷酸二氢钾 生长 花芽分化 |
| 英文关键词:Strawberry Seedlings Potassium Dihydrogen Phosphate KH2PO4 Flower Bud Differentiation |
| 基金项目:江苏省农业科技自主创新资金项目(CX（22)2024）；江苏省种业振兴揭榜挂帅项目[JBGS[2021]083] |
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| 中文摘要: |
| 为探究不同浓度磷酸二氢钾溶液对草莓幼苗生长和花芽分化的影响，本研究以“紫金香雪”草莓为试材，采用去离子水作为对照，研究了磷酸二氢钾溶液对草莓苗生长和花芽分化的影响。结果表明，与对照(去离子水)相比较，苗期不同浓度的磷酸二氢钾处理对‘紫金香雪’草莓苗生长和花芽分化质量均有不同程度的影响。研究发现，0.6%浓度的磷酸二氢钾处理后，草莓苗在叶柄长度、地上部鲜重以及叶片取样检测的可溶性糖含量、可溶性蛋白含量、ABA含量、ZR含量和GA3含量等方面均显著高于与对照组，使用体式镜解剖处理后的草莓苗观察发现花芽分化水平较对照显著提高。同时，通过对处理与对照草莓苗心叶的转录组测序分析，结果发现随处理浓度的增加，7个与开花相关的昼夜节律通路基因的表达水平增加，其中0.6%浓度处理效果最佳。综上所述，磷酸二氢钾处理相较于对照组，能够促进草莓幼苗的生殖生长，推动花芽分化过程。 |
| 英文摘要: |
| In order to explore the effects of different concentrations of potassium dihydrogen phosphate solution on the growth and flower bud differentiation of strawberry seedlings, this study took the strawberry variety "Zijin Xiangxue" as the object, used deionized water as the control, and sprayed strawberry seedlings with different concentrations of potassium dihydrogen phosphate solution, and the relevant indexes were observed and recorded. The results showed that the growth and physiological indexes and flower bud differentiation level of the different concentrations of potassium dihydrogen phosphate treatment groups showed significant differences, and the 0.6% concentration treatment group showed significant differences with the control group in terms of petiole length, shoot fresh weight, soluble sugar content, soluble protein content, ABA content, ZR content and GA3 content, and the flower bud differentiation level after treatment was also significantly improved. At the same time, transcriptome analysis screened out 7 differentially expressed genes related to circadian pathway related to flowering, and their expression levels increased with the increase of treatment concentration. In conclusion, potassium dihydrogen phosphate treatment could promote the reproductive growth of strawberry seedlings and promote the flower bud differentiation process compared with the control group, and the concentration of 0.6% had the best effect. |
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