Growth-promoting microorganisms in the development of orchid seedlings of Phalaenopsis, Cymbidium, and Dendrobium genera

IF 0.6 4区农林科学 Q3 AGRICULTURE, MULTIDISCIPLINARY

Bioscience Journal Pub Date : 2023-08-18 DOI:10.14393/bj-v39n0a2023-66721

Lorena Bezerra de Medeiros, Antonio Maricélio Borges de Souza, G. R. Vieira, Kássia Barros Ferreira, T. Campos, K. F. L. Pivetta, E. Rigobelo

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Abstract

The demand for sustainable agricultural production systems is increasing, and using growth-promoting microorganisms in plants has stood out because it decreases or even replaces chemical fertilizer use, reducing production costs. This study aimed to evaluate the response of some microorganisms applied to the seedlings of primary orchids cultivated in Brazil (Phalaenopsis sp. 'Taisuco Swan', Cymbidium atropurpureum, and Dendrobium secundum). The experimental design was completely randomized. There were seven treatments (absence of microorganisms – control, Trichoderma sp. in sodium alginate, Trichoderma sp. in clay, Trichoderma sp. in sodium alginate and clay, Trichoderma sp. in a liquid medium, Azospirillum brasilense + Bacillus subtilis in a liquid medium, and Bacillus pumilus in a liquid medium), four replications, and three plants per plot. The seedlings were grown in a greenhouse and evaluated 190 days after microorganism inoculation. The evaluation of morpho-physiological characteristics differed according to the particularities of each genus. The Bacillus pumilus and Azospirillum brasilense + Bacillus subtilis rhizobacteria in a liquid medium for Phalaenopsis sp. 'Taisuco Swan' and the Trichoderma sp. fungus in a liquid medium for Cymbidium atropurpureum increased seedling growth and development. Azospirillum brasilense + Bacillus subtilis in a liquid medium for the Dendrobium secundum orchid promoted more root biomass. Using beneficial microorganisms in orchid cultivation is promising, and seedling growth and development depend on their inoculation and the morpho-physiological characteristics of each plant.

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蝴蝶兰、蕙兰和石斛属兰花幼苗发育中的促生长微生物

对可持续农业生产系统的需求正在增加，在植物中使用促进生长的微生物脱颖而出，因为它减少甚至取代了化肥的使用，降低了生产成本。本研究旨在评估一些微生物对巴西原生兰花（Phalaenopsis sp.‘Taisuco Swan’、Cymbidium atropurpureum和Dendrobium secundum）幼苗的反应。实验设计完全随机。共有7个处理（无微生物对照、藻酸钠中的木霉属、粘土中的木霉菌属、藻酸盐和粘土中的毛霉菌属、液体培养基中的木曲霉属、液体介质中的巴西固氮菌+枯草芽孢杆菌和液体培养基中平积芽孢杆菌），4个重复，每个地块3株。幼苗在温室中生长，并在微生物接种后190天进行评估。形态生理特征的评估因每个属的特殊性而异。在蝴蝶兰（Phalaenopsis sp.）的液体培养基中的短小芽孢杆菌（Bacillus pumilus）和巴西固氮螺菌（Azospirillum brasilense）+枯草芽孢杆菌（Bacillus subtilis）根际细菌。在液体培养基中，巴西固氮螺菌+枯草芽孢杆菌促进了石斛兰的根系生物量增加。在兰花栽培中使用有益微生物是有前景的，幼苗的生长和发育取决于它们的接种和每株植物的形态生理特征。

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来源期刊

Bioscience Journal Agricultural and Biological Sciences-General Agricultural and Biological Sciences

CiteScore

1.00

自引率

0.00%

发文量

审稿时长

48 weeks

期刊介绍： The Bioscience Journal is an interdisciplinary electronic journal that publishes scientific articles in the areas of Agricultural Sciences, Biological Sciences and Health Sciences. Its mission is to disseminate new knowledge while contributing to the development of science in the country and in the world. The journal is published in a continuous flow, in English. The opinions and concepts expressed in the published articles are the sole responsibility of their authors.