Crecimiento y calidad de plántulas de café (<i>Coffea arabica</i>) injertadas sobre <i>Coffea canephora</i> frente a nematodos en vivero

Borjas‐Ventura, Ricardo; Alarcón, Eduard Andía; Alarcón-Águila, Gerson; Castro, S.; Otiniano, Alberto Julca

doi:10.36610/j.jsab.2018.060200028

Cited by 3 publications

(2 citation statements)

References 19 publications

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“…Otherwise, the reduction in the slenderness index indicated an improvement in the health condition of the seedlings. According to Borjas et al 75 , lower values correspond to plants with a greater capacity for adaptation to unfavorable environmental conditions.…”

Section: Discussionmentioning

confidence: 99%

Drought stress tolerance and growth promotion in chiltepin pepper (Capsicum annuum var. glabriusculum) by native Bacillus spp

Mendoza-Alatorre,

Infante-Ramírez,

González-Rangel

et al. 2023

Preprint

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Chiltepin is a semi-cultivated plant of high commercial value and represents a valuable genetic resource. However, several factors, such as drought, limit its production. Treatment with plant growth-promoting bacteria (PGPBs) is an alternative to mitigate drought stress. The present study aimed to evaluate the capacity of Bacillus spp, isolated from soils, to promote growth and induce tolerance to drought stress in chiltepin. A completely random design was established, and the Scott-Knott test was used (α = 0.05). The treated seeds improved germination parameters with increases of 46.42% in Germination Rate (GR), 22.56% in Mean Speed of Germination (MSG), 22.19% in Germination Speed Index (GSI), 65.16% in Vigor Index (VI), and 100.14% in Germination Index (GI). Furthermore, they reduced MGT (Mean Germination Time) by 5.63%. All isolates could solubilize phosphorus and zinc and produce ammonium, siderophores, and exopolysaccharides. Moreover, Bacillus spp. isolates showed resistance to drought at -1.75 MPa. Likewise, the treatments improved in vitro survival of stressed seedlings by 68%. Under greenhouse conditions, treated seedlings exhibited increases in root length (9.6%), stem diameter (13.68%), leaf fresh weight (69.87%), and chlorophyll a (38.15%). They also alleviated severe water stress symptoms and increased Relative Water Content (RWC) by 51%. Isolate Bc25-7 showed the highest potential for promoting growth, enduring water stress, and lessening the drought effect on chiltepin seedlings.

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Section: Discussionmentioning

confidence: 99%

Drought stress tolerance and growth promotion in chiltepin pepper (Capsicum annuum var. glabriusculum) by native Bacillus spp

Mendoza-Alatorre,

Infante-Ramírez,

González-Rangel

et al. 2023

Preprint

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show abstract

“…Root volume was calculated using Archimedes principle [32]. The dry mass of the aerial part, root and total (g) [33], the quality index of the stands [34] and the leaf and root P contents were also determined spectrophotometrically using the molybdenum blue method [35]. At the time of hypocotyledonal grafting, the roots were soaked in 1 mL of Rhizobium sp.…”

Section: Rhizobium Inoculation In Seedsmentioning

confidence: 99%

Rhizobium Grants the Reduction of Phosphate Fertilization during the Production of Coffee Seedlings

Vinent

Aguilera

et al. 2023

Sustainability

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The use of bacterial inoculants is an attractive alternative that could reduce the consumption of chemical fertilizers in crops. In the production system of quality coffee seedlings, it is essential to achieve an adequate balance of nutrients that allows for healthy plants that are resistant to subsequent handling. The objective of this work was to evaluate the effect of Rhizobium sp. inoculation on the growth, nutrition and quality of coffee seedlings cultivated with different doses of phosphoric fertilization. Inoculation tests were carried out under nursery conditions using Coffea arabica L. cv. “Isla 5–15” and Coffea canephora Pierre ex Froehner cv. “Robusta” seeds inoculated with the Rhizobium sp. Rpr2 strain. Sixty days after sowing, the hypocotyldonal graft was performed, and the resulting plants were also treated with the bacterial inoculant. Plants were then planted in substrate with different doses of phosphorus (P): 25, 50, 75 and 100%. At seven months of cultivation, variables of growth (plant height, stem diameter, number of leaf pairs, main root length, root volume, dry mass of the aerial part, root and total), phosphoric nutrition (leaf and root P contents) and posture quality index were evaluated. The inoculation stimulated the aerial part (37%), root growth (34%), the quality index of the grafted postures (30%), and phosphorus absorption (42%) and allowed a decrease from 25 to 75% of the mineral fertilizer. For the first time in Cuba, the benefits of rhizobial inoculation on the nutrition and quality of coffee seedlings were demonstrated. The inoculation of grafted coffee seedlings with Rhizobium sp. Rpr2 through the inoculation method proposed in this study can be recommended as a new easy, cost-effective and efficient inoculation approach to obtain additional benefits for coffee growth, improving the absorption of nutritive elements and the quality characteristics of the coffee seedlings.

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Enhancing drought stress tolerance and growth promotion in chiltepin pepper (Capsicum annuum var. glabriusculum) through native Bacillus spp.

Mendoza-Alatorre,

Infante-Ramírez,

González-Rangel

et al. 2024

Sci Rep

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The drought can cause a decrease in food production and loss of biodiversity. In northern Mexico, an arid region, the chiltepin grows as a semi-domesticated crop that has been affected in its productivity and yield. An alternative to mitigate the effect of drought and aid in its conservation could be using Plant Growth-Promoting Bacteria (PGPB). The present study evaluated the capacity of native Bacillus spp., isolated from arid soils, as PGPBs and drought stress tolerance inducers in chiltepin under controlled conditions. Chiltepin seeds and seedlings were inoculated with native strains of Bacillus spp. isolated from arid soils, evaluating germination, vegetative, and drought stress tolerance parameters. The PGPBs improved vegetative parameters such as height, stem diameter, root length, and slenderness index in vitro. B. cereus (Bc25-7) improved in vitro survival of stressed seedlings by 68% at −1.02 MPa. Under greenhouse conditions, seedlings treated with PGPBs exhibited increases in root length (9.6%), stem diameter (13.68%), leaf fresh weight (69.87%), and chlorophyll content (38.15%). Bc25-7 alleviated severe water stress symptoms (7 days of water retention stress), and isolates B. thuringiensis (Bt24-4) and B. cereus (Bc25-7, and Bc30-2) increased Relative Water Content (RWC) by 51%. Additionally, the treated seeds showed improved germination parameters with a 46.42% increase in Germination Rate (GR). These findings suggest that using PGPBs could be an alternative to mitigate the effect of drought on chiltepin.

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Crecimiento y calidad de plántulas de café (Coffea arabica) injertadas sobre Coffea canephora frente a nematodos en vivero

Cited by 3 publications

References 19 publications

Drought stress tolerance and growth promotion in chiltepin pepper (Capsicum annuum var. glabriusculum) by native Bacillus spp

Drought stress tolerance and growth promotion in chiltepin pepper (Capsicum annuum var. glabriusculum) by native Bacillus spp

Rhizobium Grants the Reduction of Phosphate Fertilization during the Production of Coffee Seedlings

Enhancing drought stress tolerance and growth promotion in chiltepin pepper (Capsicum annuum var. glabriusculum) through native Bacillus spp.

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