scholarly journals Influência da colonização micorrízica arbuscular sobre a nutrição do quiabeiro

1999 ◽  
Vol 34 (9) ◽  
pp. 1645-1653
Author(s):  
Ricardo Luís Louro Berbara ◽  
Luís Rodrigues Freire ◽  
Manlio Silvestre Fernandes
Keyword(s):  
Abelmoschus Esculentus ◽  
Glomus Aggregatum ◽  
Sclerocystis Sinuosa

Foram estudados em casa de vegetação alguns parâmetros de crescimento em plantas de quiabo (Abelmoschus esculentus (L.) Moench cv. Piranema) colonizadas por dois grupos de fungos micorrízicos arbusculares, com o objetivo de determinar a influência dos inóculos na nutrição e morfologia radicular do quiabeiro. Um grupo continha apenas esporos de Acaulospora longula (A) enquanto o outro, esporos de oito espécies: Glomus occultum, Glomus aggregatum, Glomus microcarpum, Acaulospora longula, Acaulospora morrowae, Sclerocystis coremioides, Sclerocystis sinuosa, Scutellospora pellucida. As plantas foram submetidas a três níveis de P (0, 10 e 60 kg ha-1 de P2O5) e coletadas em três diferentes idades (22, 32 e 47 dias), com quatro repetições para cada tratamento. Foi determinado o acúmulo de N, P, K, e Mg na raiz e parte aérea, bem como o influxo médio desses elementos e a área radicular. Os resultados indicaram, além da resposta positiva do quiabeiro ao P, uma maior eficiência da inoculação com mistura de espécies apesar de o influxo médio, determinado aos 47 dias, apresentar maiores valores para o tratamento com A. longula.

La Capacidad infectiva de propágulos de Hongos Micorrizicos Arbusculares en caña de azúcar (Saccharum spp.)

2020 ◽  
Vol 13 (1) ◽  
Author(s):  
Leydi Sánchez-Reyna ◽  
Sergio Salgado-García ◽  
Samuel Cordova Sanchez ◽  
Laura Hernández-Cuevas ◽  
Juan Florencio Gómez-Leyva ◽  
...  
Keyword(s):  
Saccharum Spp ◽  
Sclerocystis Sinuosa

Objetivo: El presente trabajo se realizó con el objetivo de evaluar la capacidad infectiva de propágulos de hongos micorrizicos arbusculares (HMA) en el cultivo de caña de azúcar de la región de la Chontalpa, Tabasco. Diseño/metodología/aproximación: Se realizaron muestreos de rizosfera en los suelos Cambisol Fluvico, pertenecientes al poblado C-28 y Cambisol Endogleyico, pertenecientes al poblado C-20, a una profundidad de 0 a 30 cm para evaluar porcentaje de colonización en raíces, número de esporas en 100 g de suelo y para la clasificación taxonómica de HMA. Resultados: El estado micorrizico del suelo indica que el porcentaje de colonización en raíces fue de 100% en los dos tipos de suelos y 2833±2064 esporas en 100 g del suelo Cambisol Flúvico y 2966±873 esporas en el suelo Cambisol Endogléyico. Se identificaron cuatro especies de HMA Entrophosfora nevadensis, Sclerocystis sinuosa, Funneliformis geosporum y Claroideum glomus luteum. El suelo que presento mayor número de especies fue el Cambisol Endogléyico. En la capacidad infectiva de propágulos de ambos tipos de suelos, la dilución 4² presentó mayor colonización con un 100% de colonización de raíces y la menor colonización en la dilución 4? con 93.0% de colonización. Limitaciones del estudio/implicaciones: Por el periodo o etapa evaluado no permitió la clasificación taxonómica, por lo que, el estudio debe hacerse más a detalle. Hallazgos/conclusiones: No se observaron esporas en esta etapa, por lo cual la clasificación taxonómica no pudo realizarse. Los HMA evaluados tienen un alto potencial para utilizarse en un programa de producción de biofertilizantes.

Growth and yield of okra (Abelmoschus esculentus (L.) Moench) grown in the marginal upland area of Sta. Rita, Samar as influenced by different planting densities and mulching materials

2017 ◽  
pp. 44-54
Author(s):  
Zenaida Gonzaga ◽  
Warren Obeda ◽  
Ana Linda Gorme ◽  
Jessie Rom ◽  
Oscar Abrantes ◽  
...  
Keyword(s):  
Bare Soil ◽  
Abelmoschus Esculentus ◽  
Growth And Yield ◽  
Planting Density ◽  
Rice Hull ◽  
Plastic Mulch ◽  
Lady’S Finger ◽  
Materials Used ◽  
Set Up ◽  
A Minor

Okra or Lady’s finger, botanically known as Abelmoschus esculentus (L.) Moench, is a tropical and sub-tropical indigenous vegetable crop commonly grown for its fibrous, slimy, and nutritious fruits and consumed by all classes of population. It has also several medicinal and economic values. Despite its many uses and potential value, its importance is under estimated, under-utilized, and considered a minor crop and little attention was paid to its improvement. The study was conducted to evaluate the effects of different planting densities and mulching materials on the growth and yield of okra grown in slightly sloping area in the marginal uplands in Sta. Rita, Samar, Philippines. A split-plot experiment was set up with planting density as main plot and the different mulching materials as the sub-plot which were: unmulched or bare soil, rice straw, rice hull, hagonoy and plastic mulch. Planting density did not significantly affect the growth and yield of okra. Regardless ofthe mulching materials used, mulched plants were taller and yielded higher compared to unmulched plants. Moreover, the use of plastic mulch resulted to the highest total fruit yield. The results indicate the potential of mulching in increasing yield and thus profitability of okra production under marginal upland conditions.

Efektivitas Serbuk Buah Okra (Abelmoschus esculentus) sebagai Larvasida Aedes aegypti

2019 ◽  
Author(s):  
Monica Puspa Sari ◽  
Henricho Himawan ◽  
Rina Priastini Susilowati
Keyword(s):  
Aedes Aegypti ◽  
Abelmoschus Esculentus

Temephos 1% atau lebih dikenal dengan abate dulu efektif untuk penanganan larva nyamuk, khususnya larva Aedes aegypti yang merupakan vektor utama dari demam berdarah. Akan tetapi penggunaan yang terus menerus dan tidak terkontrol dapat menyebabkan terjadinya resistensi temephos. Tujuan dari penelitian ini adalah untuk mencari larvasida alami yang dapat digunakan sebagai alternatif atau pengganti temephos, salah satunya adalah buah okra. Penelitian ini merupakan penelitian eksperimental, dengan lima kali pengulangan dan konsentrasi masing-masing 1%,2%,4%,8%, dan 16%, kontrol negatif, dan temephos 1% sebagai kontrol positif, dan dilakukan pengamatan selama 24 jam untuk melihat jumlah kematian larva. Hasil percobaan serbuk buah okra dengan berbagai konsentrasi terhadap larva instar III Aedes aegypti menunjukkan hasil nilai LC50 sebesar 4,143% dan LC90 sebesar 12,778%. Serbuk buah okra dapat bertindak sebagai racun dan bersifat sebagai racun kontak bagi larva Aedes aegypti. Dapat disimpulkan bahwa dosis efektif serbuk buah okra untuk mematikan larva Aedes aegypti adalah 12,778 %. Kata kunci: Aedes aegypty, temephos 1%, larvasida, serbuk buah okra

scholarly journals Green Synthesis of CeO2 Nanoparticles from the Abelmoschus esculentus Extract: Evaluation of Antioxidant, Anticancer, Antibacterial, and Wound-Healing Activities

Molecules ◽  
2021 ◽  
Vol 26 (15) ◽  
pp. 4659
Author(s):  
Hafiz Ejaz Ahmed ◽  
Yasir Iqbal ◽  
Muhammad Hammad Aziz ◽  
Muhammad Atif ◽  
Zahida Batool ◽  
...  
Keyword(s):  
Wound Healing ◽  
Metal Oxide Nanoparticles ◽  
In Vitro Cytotoxicity ◽  
Ceo2 Nanoparticles ◽  
Abelmoschus Esculentus ◽  
Oxide Nanoparticles ◽  
Dependent Manner ◽  
Hydrogel Membrane ◽  
Cancerous Cells

Metal oxide nanoparticles synthesized by the biological method represent the most recent research in nanotechnology. This study reports the rapid and ecofriendly approach for the synthesis of CeO2 nanoparticles mediated using the Abelmoschus esculentus extract. The medicinal plant extract acts as both a reducing and stabilizing agent. The characterization of CeO2 NPs was performed by scanning electron microscopy (SEM), X-ray diffraction (XRD), ultraviolet-visible spectroscopy (UV-Vis), and Fourier transform infrared spectroscopy (FTIR). The in vitro cytotoxicity of green synthesized CeO2 was assessed against cervical cancerous cells (HeLa). The exposure of CeO2 to HeLa cells at 10–125 µg/mL caused a loss in cellular viability against cervical cancerous cells in a dose-dependent manner. The antibacterial activity of the CeO2 was assessed against S. aureus and K. pneumonia. A significant improvement in wound-healing progression was observed when cerium oxide nanoparticles were incorporated into the chitosan hydrogel membrane as a wound dressing.

Occurrence of Vesicular-Arbuscular Mycorrhizal Fungi in Alberta, Canada

1993 ◽  
Vol 48 (11-12) ◽  
pp. 923-929 ◽  
Author(s):  
S. M. Boyetchko ◽  
J. P. Tewari
Keyword(s):  
Electron Microscopy ◽  
Scanning Electron Microscopy ◽  
Mycorrhizal Fungi ◽  
Arbuscular Mycorrhizal ◽  
Fungal Species ◽  
Glomus Aggregatum ◽  
X Ray ◽  
Vesicular Arbuscular ◽  
Spore Walls ◽  
Scanning Electron

Abstract Three V A mycorrhizal fungal species were isolated from soils in Alberta, Canada and examined by scanning electron microscopy and energy-dispersive X-ray microanalysis. Mature spores of Glomus aggregatum developed an outer hyaline wall which contained lower levels of calcium than the middle wall. Examination of G. pansihalos spores revealed a lower level of calcium in the outer evanescent wall as compared to the ornamented wall. When spores of Entrophospora infrequens were examined, the wall of the vesicle was found to contain similar levels of calcium as the ornamented wall of the spore. The significance of the results concerning the presence of calcium in mycorrhizal spore walls is discussed, as is the occurrence of the mycorrhizal species.

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