[1]辛承伟,李娟,王蓉,等.聚合物水凝胶-促生菌复合物对番茄幼苗的促生效果[J].江苏农业学报,2026,42(08):1645-1653.[doi:doi:10.3969/j.issn.1000-4440.2026.08.013]
　XIN Chengwei,LI Juan,WANG Rong,et al.Growth-promoting effects of polymer hydrogel-plant growth-promoting rhizobacteria composites on tomato seedlings[J].,2026,42(08):1645-1653.[doi:doi:10.3969/j.issn.1000-4440.2026.08.013]
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聚合物水凝胶-促生菌复合物对番茄幼苗的促生效果()

江苏农业学报[ISSN:1006-6977/CN:61-1281/TN]

卷:
42
期数:
2026年08期
页码:
1645-1653
栏目:
园艺
出版日期:
2026-08-31

文章信息/Info

Title:
Growth-promoting effects of polymer hydrogel-plant growth-promoting rhizobacteria composites on tomato seedlings
作者:
辛承伟1; 2; 李娟2; 王蓉1; 2; 程亮2
(1.青海大学农牧学院,青海西宁810016；2.青海大学农林科学院/青海省农业有害生物综合治理重点实验室,青海西宁810016)
Author(s):
XIN Chengwei1; 2; LI Juan2; WANG Rong1; 2; CHENG Liang2
(1.College of Agriculture and Animal Husbandry, Qinghai University, Xining 810016, China;2.Academy of Agriculture and Forestry Sciences, Qinghai University/Key Laboratory of Agricultural Integrated Pest Management, Qinghai Province, Xining 810016, China)
关键词:
聚合物水凝胶(PMH); 根际促生菌; 番茄; 促生效果
Keywords:
polymer hydrogel (PMH); plant growth-promoting rhizobacteria (PGPR); tomato; growth-promoting effect
分类号:
S641.2
DOI:
doi:10.3969/j.issn.1000-4440.2026.08.013
文献标志码:
A
摘要:
针对植物根际促生菌直接施入土壤存活率低、促生效果不稳定的问题,本研究以羧甲基壳聚糖(CMCS)、海藻酸钠(SA)和氯化钙(CaCl2)制备聚合物水凝胶(PMH),制备聚合物水凝胶-促生菌复合物,探究其对番茄幼苗的促生效果。试验测定了PMH的吸水性、土壤保水能力及对番茄的植物毒性；并对番茄幼苗的生长指标进行生物统计分析。结果表明,PMH最大吸水倍率达72.52 g/g,保水性良好,与CK相比，添加PMH的土壤水分蒸发率显著降低；两个番茄品种种子发芽指数平均值分别为92.4%、101.6%,表明PMH对番茄种子萌发无植物毒性。聚合物水凝胶-促生菌复合物处理,番茄地上部干质量和地下部干质量较CK分别增加148.00%和131.25%,鲜质量分别增加74.62%和108.33%；总叶绿素含量增加47.08%,净光合速率提升131.41%；株高、茎粗、冠幅、叶面积分别增加61.46%、52.50%、37.51%、73.73%；主根和侧根长度分别增加20.14%和93.06%,侧根数量是CK的3倍。综上,PMH具有优异的吸水保水性能与生物安全性,其与促生菌制备的复合物,在提高番茄生物量,提升光合效率,改善植株形态以及促进根系生长发育方面效果均优于单独使用促生菌。本研究为根际促生菌的应用优化及聚合物水凝胶的农业推广应用提供了参考依据。
Abstract:
To address the issues of low survival rate and unstable growth-promoting performance when plant growth-promoting rhizobacteria (PGPR) are directly applied to soil, this study prepared a polymer hydrogel (PMH) using carboxymethyl chitosan (CMCS), sodium alginate (SA), and calcium chloride (CaCl2). A PMH-PGPR composite was prepared to investigate its growth-promoting effect on tomato seedlings. The water absorption and retention properties of PMH, soil water-holding capacity, and phytotoxicity to tomato were determined. Biostatistical analysis was also performed on the growth indicators of tomato seedlings. The results showed that PMH exhibited excellent water retention, with a maximum swelling rate of 72.52 g/g, and significantly reduced soil water evaporation rate. It showed no phytotoxicity to the two tomato varieties, with seed germination indices of 92.4% and 101.6%. Under the treatment with the PMH-PGPR composite, aboveground and underground dry weights of tomato increased by 148.00% and 131.25%, respectively, compared with the control (CK), while fresh weights increased by 74.62% and 108.33%. Total chlorophyll content increased by 47.08%, and net photosynthetic rate increased by 131.41%. Plant height, stem diameter, crown width, and leaf area increased by 61.46%, 52.50%, 37.51%, and 73.73%, respectively. Taproot length and lateral root length increased by 20.14% and 93.06%, respectively, and the number of lateral roots increased by 200%. In conclusion, PMH possesses excellent water absorption and retention properties along with good biosafety. The PMH-PGPR composite demonstrated superior performance in increasing tomato biomass, enhancing photosynthetic efficiency, improving plant morphology, and promoting root development compared with PGPR alone. This study provides a reference for optimizing the application of PGPR and promoting the agricultural use of polymer hydrogels.

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备注/Memo

备注/Memo:
收稿日期：2026-01-27基金项目：青海省农林科学院创新基金项目(2023-NKY-04)作者简介：辛承伟(2001-),男,青海海东人,硕士研究生,研究方向为杂草生物防除。(E-mail)3211920453@qq.com通讯作者：程亮,(E-mail)liangcheng1979@163.com
更新日期/Last Update: 2026-09-16