[1]郝征,尹高飞.植物根际促生菌与壳寡糖配施对干旱胁迫下草莓果实品质及土壤微生态环境的影响[J].江苏农业科学,2026,54(8):225-234.
 Hao Zheng,et al.Impacts of combined application of plant growth promoting rhizobacteria and chitooligosaccharide on strawberry fruit quality and soil microecological environment under drought stress[J].Jiangsu Agricultural Sciences,2026,54(8):225-234.
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植物根际促生菌与壳寡糖配施对干旱胁迫下草莓果实品质及土壤微生态环境的影响()

《江苏农业科学》[ISSN:1002-1302/CN:32-1214/S]

卷:
第54卷
期数:
2026年第8期
页码:
225-234
栏目:
干旱胁迫调控
出版日期:
2026-04-20

文章信息/Info

Title:
Impacts of combined application of plant growth promoting rhizobacteria and chitooligosaccharide on strawberry fruit quality and soil microecological environment under drought stress
作者:
郝征1尹高飞2
1.保定学院河北省土传病害绿色防控技术创新中心,河北保定 071000; 2.河北农业大学资源与环境科学学院,河北保定 071001
Author(s):
Hao Zhenget al
关键词:
植物根际促生菌壳寡糖草莓果实品质根系构型土壤酶土壤微生物
Keywords:
-
分类号:
S668.404
DOI:
-
文献标志码:
A
摘要:
植物根际促生菌与壳寡糖配施对增强植物干旱胁迫抵抗能力具有指导意义。以隋珠草莓(Fragaria×ananassa‘Suizhu’)为试材,采用盆栽试验,探究干旱胁迫下接种植物根际促生菌(PGPR)泛杆菌27B、根施不同质量浓度壳寡糖(COS)——50 mg/L(C1)、100 mg/L(C2)、200 mg/L(C3)及其复合处理对草莓生长、根系构型、果实品质及土壤理化性质、酶活性、微生物数量等的影响,以解析两者在干旱胁迫下提高草莓产量和改善果实品质的作用机制。结果表明,干旱胁迫下草莓的株高、茎粗、叶面积、总干重均显著下降,根施不同浓度COS及COS+27B处理均可缓解草莓受到的生长抑制。与干旱胁迫处理(DS)相比,DS+C2+27B处理下,草莓根系总长度、总投影面积、总体积、根尖数和根系活力分别增加28.4%、48.8%、72.9%、30.9%、61.9%;根系分泌物中氨基酸、总有机酸和总糖含量分别增加64.8%、57.5%、36.5%。干旱胁迫下,草莓果实中维生素C、可溶性蛋白、可溶性糖含量增加,可滴定酸含量和单株产量下降。添加不同浓度COS和COS+27B处理均可提高草莓品质,DS+C2+27B处理的草莓单株产量较DS处理增加39.8%。同时,根施不同浓度COS和COS+27B处理能够提高草莓根际土壤中脲酶、β-葡萄糖苷酶、蔗糖酶、多酚氧化酶、过氧化氢酶、过氧化物酶活性,增加土壤速效氮、速效磷、速效钾、有机碳含量,改善土壤微生物群落结构,增加细菌、放线菌数量并提升土壤中微生物碳和微生物氮含量等,来缓解草莓受到的干旱胁迫。综上,根施100 mg/L COS并接种PGPR 27B菌株处理是干旱胁迫下促进草莓果实品质和产量提升的最佳组合。
Abstract:
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备注/Memo

备注/Memo:
收稿日期:2025-07-03
基金项目:河北省保定市科技计划(编号:2411ZN004);国家重点研发计划(编号:2024YFD1701304)。
作者简介:郝征(1984—),女,河北保定人,博士,讲师,主要从事植物种质资源与分子辅助育种研究。E-mail:haozheng@bdu.edu.cn。
更新日期/Last Update: 2026-04-20