种子颗粒施用植物生长促进菌对莴苣（Lactuca sativa）发芽和生长的影响

Q3 Environmental Science

Environment and Natural Resources Journal Pub Date : 2024-01-01 DOI:10.32526/ennrj/22/20230176

Phetcharat Jeephet, Nararat Thawong, Chuthamat Atnaseo, Sutheera Hermhuk, Jakkrapong Kangsopa

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引用次数: 0

摘要

促进植物生长的细菌（PGPB）通常被用于颗粒种子。不同的细菌菌株对发芽和植物生长的影响各不相同。本实验的目的是研究用三种菌株进行种子颗粒化对莴苣的发芽、活力、幼苗生长和植株生长变化的影响。实验采用完全随机设计，共进行了四次重复和五种处理：不造粒（T1）、仅用 CaSO4-zeolite 造粒（T2）、用 1×107 CFU/mL Stenotrophomonas sp.菌株 sk3 造粒（T3）、用 1×108 CFU/mL Burkholderia sp.菌株 3-DB05 造粒（T4）和用 1×108 CFU/mL Enterobacter sp.菌株 4-RB05 造粒（T5）。Burkholderia sp.和 Enterobacter sp.能更有效地产生吲哚-3-乙酸（IAA），在实验室和温室条件下进行试验时，用这些菌株造粒的种子与未造粒的种子相比，发芽率和幼苗生长率更高。用 1×108 CFU/mL Enterobacter sp.进行种子制粒可促进植物生长，并显著提高叶片和根的重量。因此，建议使用 1×108 CFU/mL 肠杆菌菌株 4-RB05 粒化种子，以提高红橡叶莴苣种子的发芽率和植株生长。

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Effect of Seed Pelleting Application of Plant Growth Promoting Bacteria on Germination and Growth of Lettuce (Lactuca sativa)

Plant growth-promoting bacteria (PGPB) are commonly used to pellet seeds. Different bacterial strains affect germination and plant growth in varying ways. The objective of this experiment was to study the effects of seed pelleting with three strains of bacteria on changes in germination, vigor, seedling growth, and the plant growth of lettuce. The experiment followed a completely randomized design with four repetitions and five treatments: without pelleting (T1), pelleting with CaSO4-zeolite only (T2), pelleting with 1×107 CFU/mL Stenotrophomonas sp. strain sk3 (T3), pelleting with 1×108 CFU/mL Burkholderia sp. strain 3-DB05 (T4), and pelleting with 1×108 CFU/mL Enterobacter sp. strain 4-RB05 (T5). Burkholderia sp. and Enterobacter sp. were more effective in producing indole-3-acetic acid (IAA), and pelleting seeds with these strains resulted in higher germination rates and seedling growth compared to unpelleted seeds when tested in both laboratory and greenhouse conditions. Seed pelleting with 1×108 CFU/mL Enterobacter sp. promoted plant growth and resulted in significantly higher leaf and root weight. Therefore, seed pelleting with 1×108 CFU/mL Enterobacter sp. strain 4-RB05 is recommended to improve the germination and plant growth of Red Oak Leaf lettuce seeds.

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来源期刊

Environment and Natural Resources Journal Environmental Science-Environmental Science (all)

CiteScore

1.90

自引率

0.00%

发文量

审稿时长

8 weeks

期刊介绍： The Environment and Natural Resources Journal is a peer-reviewed journal, which provides insight scientific knowledge into the diverse dimensions of integrated environmental and natural resource management. The journal aims to provide a platform for exchange and distribution of the knowledge and cutting-edge research in the fields of environmental science and natural resource management to academicians, scientists and researchers. The journal accepts a varied array of manuscripts on all aspects of environmental science and natural resource management. The journal scope covers the integration of multidisciplinary sciences for prevention, control, treatment, environmental clean-up and restoration. The study of the existing or emerging problems of environment and natural resources in the region of Southeast Asia and the creation of novel knowledge and/or recommendations of mitigation measures for sustainable development policies are emphasized. The subject areas are diverse, but specific topics of interest include: -Biodiversity -Climate change -Detection and monitoring of polluted sources e.g., industry, mining -Disaster e.g., forest fire, flooding, earthquake, tsunami, or tidal wave -Ecological/Environmental modelling -Emerging contaminants/hazardous wastes investigation and remediation -Environmental dynamics e.g., coastal erosion, sea level rise -Environmental assessment tools, policy and management e.g., GIS, remote sensing, Environmental -Management System (EMS) -Environmental pollution and other novel solutions to pollution -Remediation technology of contaminated environments -Transboundary pollution -Waste and wastewater treatments and disposal technology