Effect of allelopathic plant extracts on Leucaena leucocephala (Lam.) de Wit seeds: a multivariate and machine learning approach to a global problem

IF 2 4区生物学 Q4 BIOCHEMISTRY & MOLECULAR BIOLOGY

Biochemical Systematics and Ecology Pub Date : 2025-09-21 DOI:10.1016/j.bse.2025.105137

Erika Elias da Silva, Luan Danilo Ferreira de Andrade Melo, João Luciano de Andrade Melo Junior, Larice Bruna Ferreira Soares, Vilma Marques Ferreira, Keven Willian Sarmento Galdino da Silva, Marcus Gabriel de Carvalho Ramos

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引用次数: 0

Abstract

The invasive species Leucaena leucocephala (leucaena) negatively impacts ecosystems, requiring sustainable control strategies. This study evaluated the allelopathic effects of plant extracts from Eucalyptus staigeriana, Corymbia citriodora, Eucalyptus globulus, Schinus terebinthifolius, Copaifera officinalis, and pyroligneous extract on the germination and early development of L. leucocephala. Essential oils were tested at concentrations of 0.2; 0.4; 0.6; 0.8; 1.0 and 1.2 % (v v⁻¹), while the pyroligneous extract was diluted at 1:100 (v v⁻¹), using the same concentrations of essential oils, with the control (0 %), immersed in distilled water, only. Germination and morphological parameters were analyzed using principal component analysis. All extracts inhibited leucaena germination and growth, with efficiency dependent on concentration. The essential oils of E. staigeriana and C. citriodora were most effective at 1.2 %, while E. globulus performed best at 0.8 and 1.0 %. S. terebinthifolius significantly inhibited germination at all concentrations, whereas C. officinalis essential oil and pyroligneous extract showed optimal results at 1.0 and 1.2 %. The study confirms that plant extracts are viable bioherbicides for controlling L. leucocephala.

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化感植物提取物对Leucaena leucocephala (Lam.) de Wit种子的影响：一个全球性问题的多元机器学习方法

入侵物种Leucaena Leucaena Leucaena Leucaena Leucaena Leucaena Leucaena (Leucaena))对生态系统造成了负面影响，需要可持续的控制策略。研究了蓝桉、枸杞、蓝桉、三叶草、黄檀、鹿蹄草等植物提取物对白头草种子萌发和早期发育的化感作用。精油的浓度为0.2；0.4;0.6;0.8;1.0和1.2% (v v−1)，而鹿蹄草提取物以1:100 （v v−1）稀释，使用相同浓度的精油，对照（0%），仅浸在蒸馏水中。用主成分分析法对发芽和形态参数进行分析。所有提取物均能抑制银合欢的萌发和生长，其抑制效果与浓度有关。田螺精油和柠檬酸精油的效果最好，分别为1.2%和0.8%和1.0%。在不同浓度下，三叶草精油和鹿蹄草提取物的抑制效果最佳，分别为1.0和1.2%。研究证实，植物提取物是一种有效的生物除草剂。

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来源期刊

Biochemical Systematics and Ecology 生物-进化生物学

CiteScore

3.00

自引率

12.50%

发文量

147

审稿时长

43 days

期刊介绍： Biochemical Systematics and Ecology is devoted to the publication of original papers and reviews, both submitted and invited, in two subject areas: I) the application of biochemistry to problems relating to systematic biology of organisms (biochemical systematics); II) the role of biochemistry in interactions between organisms or between an organism and its environment (biochemical ecology). In the Biochemical Systematics subject area, comparative studies of the distribution of (secondary) metabolites within a wider taxon (e.g. genus or family) are welcome. Comparative studies, encompassing multiple accessions of each of the taxa within their distribution are particularly encouraged. Welcome are also studies combining classical chemosystematic studies (such as comparative HPLC-MS or GC-MS investigations) with (macro-) molecular phylogenetic studies. Studies that involve the comparative use of compounds to help differentiate among species such as adulterants or substitutes that illustrate the applied use of chemosystematics are welcome. In contrast, studies solely employing macromolecular phylogenetic techniques (gene sequences, RAPD studies etc.) will be considered out of scope. Discouraged are manuscripts that report known or new compounds from a single source taxon without addressing a systematic hypothesis. Also considered out of scope are studies using outdated and hard to reproduce macromolecular techniques such as RAPDs in combination with standard chemosystematic techniques such as GC-FID and GC-MS.