Studies on the Occurrence and Distribution of Plant-Parasitic Nematodes in Some Pineapple-Producing States in Nigeria

Daramola, Fisayo; Afolami, S. O.; Idowu, AA; Nwanguma, E. I.

doi:10.3923/ajcs.2013.190.199

Cited by 20 publications

(15 citation statements)

References 4 publications

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“…Los géneros Trichodorus y Tylenchus, han sido reportados también como los más frecuentes en muestras de suelo del cultivo de piña (Amaya, 1980). La elevada presencia de Tylenchus en el cultivo ha sido reportada en algunos trabajos (Daramola et al, 2013); sin embargo, su importancia en el cultivo aún no ha sido establecida, lo que no nos descarta que el elevado número de este nematodo podría otorgar una presión de parasitismo adicional y podría representar una amenaza para la producción del cultivo (Daramola et al, 2013).…”

Section: Resultados Y Discusiónunclassified

Plant parasitic nematodes associated with pineapple cultivation (Ananas comosus) in Amazonas, Peru

Vera-Obando¹,

Maicelo²,

Heredia³

et al. 2017

sci. agropecu

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ResumenEl presente trabajo tuvo como objetivo identificar los principales géneros de nematodos fitoparásitos asociados al cultivo de piña (Ananas comosus) y sus respectivos porcentajes de ocurrencia (frecuencias) y densidades poblacionales promedio. Se analizaron muestras de suelo y raíces colectadas de 28 campos de piña en la provincia de Rodríguez de Mendoza, ubicadas entre 1796 y 1936 m.s.n.m. Las muestras fueron procesadas por duplicado mediante el método de Baerman modificado en bandeja, utilizando 50 cc. de suelo y 5 g de raíces. En las muestras de suelo, se identificaron once géneros de nematodos fitoparásitos asociados al cultivo de piña. El género Helicotylenchus fue encontrado en todos los campos evaluados y presentó mayores promedios poblacionales en muestras de suelo y raíces (24,5 y 3,9 respectivamente). El presente trabajo constituye el primer estudio de identificación de nematodos fitoparásitos en el cultivo de piña en el departamento de Amazonas y nos brinda información que permitirá establecer futuras estrategias para el control de éstos nematodos fitoparásitos.Palabras clave: Helicotylenchus; Pratylenchus; Baerman; identificación; fitonematodo. AbstractThe present study aimed to identify the main genera of plant parasitic nematodes associated with the pineapple crop (Ananas comosus) and their respective percentages of occurrence (frequencies) and average population densities. Soil and root samples were collected from twenty eight pineapple fields in the province of Rodríguez de Mendoza, located between 1796 and 1936 meters above sea level. Sample were processed in duplicate by the method of modified Baerman on tray, using 50 cc. of soil and 5 g of root. In soil samples, eleven genera of plant parasitic nematodes associated with pineapple crop were identified. The genus Helicotylenchus was found in all evaluated fields and presented higher population averages in soil and root samples (24.5 and 3.9 respectively). This work is the first study to identify plant parasitic nematodes in pineapple cultivation in the department of Amazonas and provides us with information that will establish future strategies for controlling these plant parasitic nematodes.

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Section: Resultados Y Discusiónunclassified

Plant parasitic nematodes associated with pineapple cultivation (Ananas comosus) in Amazonas, Peru

Vera-Obando¹,

Maicelo²,

Heredia³

et al. 2017

sci. agropecu

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“…Yield increases on okra, tomato, and lettuce of 19, 15, and 57% were obtained with treatment of granular nematicides, respectively on Rotylenchulus reniformis infested soil (Sikora and Fernandez, 2005). R. reniformis has been reported to be associated with various crops (Adegbite et al, 2006 ;Daramola and Afolami, 2014 ;Olabiyi et al, 2009) in Nigeria but has not been clearly connected to any quantitative loss of yield in Nigeria. The aim of this study was to assess the effect of the reniform and root-knot nematodes associated with the infection of okra.…”

Section: Introductionmentioning

confidence: 99%

Comparative Effect of Rotylenchulus reniformis and Meloidogyne incognita on the Productivity of okra in Nigeria

2018

Aust. J. Basic & Appl. Sci.

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Okra has risen in importance from being the fifth popularly produced vegetable to the second in the last few years in Nigeria. This study therefore evaluated the impact of growing okra in soils infested with Rotylenchulus reniformis and Meloidogyne incognita. A pot experiment was conducted in the screenhouse with three popular okra cultivars (NH 47-4, LD66-1 and Clemson spineless) inoculated with either R. reniformis or M. incognita and compared to uninoculated plants. The experiment was arranged in a completely randomized design with five replicates. The field trial was conducted using one cultivar, Clemson spineless and the same treatments as the pot trial laid out in a randomised complete block design with four replications. Data were collected on number of leaves, leaf area, plant height, number of fruits and fruit weight and submitted for analysis of variance. Significant reduction in number of leaves and plant height was observed in inoculated compared to uninoculated plants. Inoculated plant produced smaller and fewer fruits in comparison to the control. Yield reduction in pots was 31-72% in pot experiments with R. reniformis and 51-76% in pots with M. incognita. Yield of Clemson spineless in the field was reduced by 36% and 40% by M. incognita and R. reniformis respectively. The reniform nematode has gone beyond being a potential pest of vegetable crops such as okra in Nigeria to being an actual pest that requires serious management interventions.Citation: Claudius-Cole A.O. Comparative Effect of Rotylenchulus reniformis and Meloidogyne incognita on the Productivity of okra in Nigeria. Australian Journal of Basic and Applied Sciences, 12(9): 20-25.

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“…Marigolds exude a chemical that is toxic to nematodes and can help rid the soil and surrounding plants of any remaining worms. Though some plant nematodes have been implicated in parasitic infestation of a fruit crop like Pineapple, causing poor yield and reduced sucker production (Daramola et al, 2013).…”

Section: Introductionmentioning

confidence: 99%

Migratory Soil Nematode Feeding Group Fauna and Their Spatial Distribution in a Sampled Portion of a Cultivated Farmland within University Of Maiduguri, Maiduguri, Nigeria

Ozurumba¹,

Usman²

2016

GJBS

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Systematic sampling was engaged to determine the migratory soil nematode fauna with respect to functional feeding groups, present in a cultivated farmland within the University of Maiduguri, using two methods which were the sieving and extraction tray methods. This was done to determine the abundance of the various migratory soil nematode feeding groups, their spatial distribution and trophic structure within a measured sampling plot of 9m by 8m (72m2).Nematodes can be classified into functional feeding groups based on their feeding habits, which can often be deduced from the structure of their mouth parts. Five groups of these soil nematodes were recorded, implying that nematodes that are both beneficial and harmful to plant fauna were present in the sampled area.Soil nematodes were recorded along all five horizontal sampling plains (coded as SMA-SME). On each of these five horizontal plains -with each containing ten (10) sampling points, some of the sampling points did not record nematodes. Bacteria feeders recorded the highest %abundance of 26.3% while Omnivore feeders had the least % abundance of 11.6%. The combined abundance of bacterial and fungal feeders was 43.2%, which represents the nematode groups that help in re-cycling of nutrients through the provision of nitrogen in the soil. The trophic level stratification based abundance in terms of ratio of soil nematode groups was 7: 2 for ratio of "2nd + 3rd trophic levels" to "1st trophic level", a value that indicates that the combined activities of soil nematode groups in the 1st and 2nd trophic levels may assist in soil quality maintenance activities which may also help check the activities of those of the 1st trophic level (Herbivore feeders). The major plant parasitizing nematodes (Herbivore feeders) accounted for 23.2% of the total abundance of these migratory soil nematode groups. However, out of the total of 50 sampling points examined from the marked out portion on the farmland, 15 points (30%) recorded no nematodes while 35 points (70%) recorded soil nematodes indicating a significant spatial spread or representation of these migratory soil nematode groups. Thirty percent (30%) of the sampling points recorded two groups of these soil nematodes and 2% recorded three groups. The nature of the compositional aggregations may likely allow for ecosystem related interactions between different soil nematode groups which could be useful for support of soil fertility related activities.

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Studies on the Occurrence and Distribution of Plant-Parasitic Nematodes in Some Pineapple-Producing States in Nigeria

Cited by 20 publications

References 4 publications

Plant parasitic nematodes associated with pineapple cultivation (Ananas comosus) in Amazonas, Peru

Plant parasitic nematodes associated with pineapple cultivation (Ananas comosus) in Amazonas, Peru

Comparative Effect of Rotylenchulus reniformis and Meloidogyne incognita on the Productivity of okra in Nigeria

Migratory Soil Nematode Feeding Group Fauna and Their Spatial Distribution in a Sampled Portion of a Cultivated Farmland within University Of Maiduguri, Maiduguri, Nigeria

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