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保水剂与氮肥配施对雪茄烟抗旱性相关理化性状的影响

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为探讨保水剂与氮肥配施对雪茄烟不同时期抗旱性的影响,本试验以雪茄烟品种德雪一号为材料,通过盆栽方式研究干旱条件下不同浓度保水剂与不同用量氮肥配施对雪茄烟抗旱性相关生理生化指标的影响,并对其进行相关性分析、主成分分析和隶属函数综合评价。结果表明,与对照相比,保水剂和氮肥配施处理均可提高雪茄烟叶的叶绿素含量,保证叶绿素的正常合成和降解;均可显著增强雪茄烟叶片SOD、POD、CAT活性,显著降低叶片MDA含量,减少烟叶中过氧化物的产生,降低其膜脂过氧化损伤;均可显著提高雪茄烟叶脯氨酸、可溶性蛋白和可溶性糖含量,促进雪茄烟叶片渗透调节物质积累,增强水分调控能力。保水剂用量 4g/株、氮肥用量 4。29 g/株处理(A1B2)效果最好,可显著增强雪茄烟品种德雪一号的抗旱性。本结论可为干旱且土壤保水保肥性能较差地区优质雪茄烟栽培提供理论依据和参考。
Effects of Water Retention Agent Combined with Nitrogen Fertilizer on Physical and Chemical Properties of Drought Resistance in Cigar Tobacco
In order to explore the effects of water retention agent combined with nitrogen fertilizer on drought resistance of cigar tobacco in different periods,the pot experiment was conducted variety Dexue 1 as test material.The effects of different dosages of water retention agent and nitrogen fertilizer on the physical and chemical indexes related to drought resistance of cigar tobacco were studied under drought conditions,and the correlation analysis,principal component analysis and subordinate function analysis were carried out.The re-sults showed that compared with the control(CK),the applicaton of water retention agent combined with nitro-gen fertilizer increased the chlorophyll content in cigar tobacco leaves,ensuring the normal synthesis and deg-radation of chlorophyll;significantly increased activities of SOD,POD and CAT and decreased MDA content in leaves,reducing the generation of peroxides and slowing down the damage of membrane lipid peroxidation;increased the contents of proline,soluble protein and soluble sugar significantly in leaves,promoting the accu-mulation of osmoregulatory substances and enhancing water regulation capability.The best effect occurred when the use rate of water retention agent and nitrogen fertilizer were 4 and 4.29 g per plant respectively(treatment A1B2),which could significantly enhance drought resistance of Dexue 1.This experiment could provide theo-retical bases and references for cultivating high-quality cigar tobacco in arid areas with poor soil water and fer-tilizer retention.

Cigar tobaccoWater retention agentNitrogen fertilizerDrought resistancePhysical and chemical propertiesComprehensive evaluation

付宏喆、王亚飞、朱治忠、苏鹏飞、孙占伟、殷全玉、赵铭钦、程小强、张明月

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河南农业大学烟草学院,河南 郑州 450002

河南中烟工业有限责任公司,河南 郑州 450002

吉安市烟草公司永丰分公司,江西 永丰 331500

雪茄烟 保水剂 氮肥 抗旱性 理化性状 综合评价

河南省科技研发计划联合基金项目河南省高等学校重点科研项目江西省烟草公司吉安市公司科技项目

22210381000523A2100222024360823240038

2024

山东农业科学
山东省农业科学院,山东农学会,山东农业大学

山东农业科学

CSTPCD北大核心
影响因子:0.578
ISSN:1001-4942
年,卷(期):2024.56(6)