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为明确黄花刺茄（Solanum rostratum Dunal）凋落物在其种内产生的化感作用。本研究采用室内盆栽试验，以去离子水（CK）为对照，测定2个不同浓度（0.1、1.0 mg/mL）的黄花刺茄凋落物水提取物，对黄花刺茄幼苗生长和土壤环境因子的影响。结果表明，2个浓度的黄花刺茄凋落物水提取物均能促进幼苗生长，其中0.1 mg/mL处理下，黄花刺茄幼苗的净光合速率、叶面积和生物量与对照相比，分别显著增加102.69%、80.51%和76.51%(P<0.05)。同时，2个浓度的黄花刺茄凋落物水提物处理与对照相比，均可显著提高土壤的有机质、铵态氮含量以及土壤的酶活性（P<0.05）。相关性分析结果显示，黄花刺茄幼苗的株高、叶面积、生物量与土壤多酚氧化酶活性、脲酶活性之间呈显著正相关（P<0.05）。黄花刺茄可通过凋落物产生种内化感作用，促进其幼苗生长。
Abstract：In order to clarify the allelopathy of the litter of Solanum rostratum Dunal in its species in this study, the indoor pot experiment was used to study the effects of different concentrations of litter water extract treatment on the growth and soil environmental factors of S. rostratum seedling by setting deionized water(CK), 0. 1,1. 0 mg/mL litter water extract treatment. The water extract of S. rostratum litter promoted the growth of seedlings, especially under the treatment of 0. 1 mg/mL, the net photosynthetic rate, leaf area and biomass increased by 102. 69%, 80. 51% and 76. 51%(P< 0. 05), respectively. At the same time, the water extract treatment of litter could significantly improve the content of soil organic matter, ammonium nitrogen and soil enzyme activity(P< 0. 05). The results of correlation analysis showed that the plant height, leaf area and biomass of seedlings were significantly positively correlated with soil polyphenol oxidase activity and urease activity(P< 0. 05). In conclusion, S. rostratum can produce intraspecific allelopathy through litter, promote its seedling growth.
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基本信息:
DOI：10.20088/j.cnki.jxau.2024.06.003
中图分类号:S45
引用信息:
[1]马雨萱,王珊珊.黄花刺茄凋落物水提取物对其幼苗生长的影响[J].新疆农业大学学报,2024,47(06):438-444.DOI:10.20088/j.cnki.jxau.2024.06.003.
基金信息:
新疆维吾尔自治区自然科学基金项目（2023D01B37）; 国家自然科学基金项目（32460684）; 新疆土壤与植物生态过程重点实验室资助项目（23XJTRZW19）
2025-06-19
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