Effects of nematode infection and mulching on the yield of plantain (Musa spp., AAB-group) ratoon crops and plantation longevity in southeastern Nigeria

Nematology ◽  
2005 ◽  
Vol 7 (4) ◽  
pp. 531-541 ◽  
Author(s):  
Annemarie Auwerkerken ◽  
Thomas Dubois ◽  
Bart De Schutter ◽  
Paul Speijer ◽  
Omalara Rotimi ◽  
...  
Keyword(s):  
Nematode Infection ◽  
International Institute ◽  
Radopholus Similis ◽  
Population Densities ◽  
Southeastern Nigeria ◽  
Musa Spp ◽  
Root Necrosis ◽  
Meloidogyne Spp ◽  
Crop Cycle ◽  
Plant Crop

AbstractThe effects of nematode infection and mulching on plantain cv. Agbagba (Musa spp., AAB-group, false horn) yield and plantation longevity were examined in a field experiment at the High Rainfall Station of the International Institute of Tropical Agriculture (IITA) at Onne in southeastern Nigeria. The 2nd, 3rd and 4th crop cycles (1st, 2nd and 3rd ratoon, respectively) following the plant crop cycle (mother crop) were examined in nematode inoculated or non-inoculated and mulched or non-mulched treatments. Nematodes (Radopholus similis, Helicotylenchus multicinctus and, to a lesser extent, Helicotylenchus dihystera, Hoplolaimus pararobustus and Meloidogyne spp.) were inoculated at planting of the mother plant, but were also present in relatively high population densities in the non-inoculated treatments at harvest of the 1st crop cycle. Plants inoculated with nematodes failed to reach harvest and neither did plants in the non-inoculated non-mulched treatments in any ratoon. Only non-inoculated mulched plants reached harvest, producing 0.85, 1.22 and 0.2 Mg ha−1, respectively in the 1st, 2nd and 3rd ratoon, taking toppled, broken and dead plants into consideration. Mulched plants were larger, had more suckers, survived longer and had healthier root systems compared with non-mulched plants. Damage to roots was greater in the inoculated plants compared with the non-inoculated plants for the 1st and 2nd ratoons but not for the 3rd ratoon. Radopholus similis was most strongly associated with root damage (percentage root necrosis and dead roots), although H. multicinctus population densities were also positively correlated with percentage root necrosis. At flowering of the 1st ratoon, 71% of the inoculated non-mulched plants were dead compared with only 1% of the non-inoculated mulched plants. Helicotylenchus multicinctus remained the most abundant nematode throughout the experiment. Together with R. similis, it comprised over 95% of the plant-parasitic nematode population.

Nematodes associated with East African Highland cooking bananas and cv. Pisang Awak (Musa spp.) in Central Uganda

Nematology ◽  
2001 ◽  
Vol 3 (6) ◽  
pp. 535-541 ◽  
Author(s):  
Dirk De Waele ◽  
Paul Speijer
Keyword(s):  
Nematode Population ◽  
Frequency Of Occurrence ◽  
Root Damage ◽  
Radopholus Similis ◽  
East African ◽  
Population Densities ◽  
Musa Spp ◽  
Root Necrosis ◽  
Root Death ◽  
Pratylenchus Goodeyi

AbstractA survey was conducted at 17 sites in Central Uganda. Suckers were detached from East African Highland cooking bananas (Musa spp., AAA-group) and the cultivar Pisang Awak (Musa spp., ABB-group), and assessed for nematode population densities and root damage. The frequency of occurrence on both Musa groups was Helicotylenchus multicinctus 88%, Radopholus similis 74% and Pratylenchus goodeyi 50%. Helicotylenchus multicinctus and R. similis densities were higher (P ≤ 0.05) on Highland cooking bananas compared to Pisang Awak, while P. goodeyi densities did not differ significantly between the groups. Helicotylenchus multicinctus and R. similis were observed to be the major pests of Highland cooking bananas in Central Uganda, causing extensive root death. Radopholus similis may be the more important of the two, as it was also highly associated with root necrosis.

Responses of banana and plantain cultivars, lines and hybrids to the burrowing nematode Radopholus similis

Nematology ◽  
2003 ◽  
Vol 5 (1) ◽  
pp. 85-98 ◽  
Author(s):  
Nicole Viaene ◽  
Luis Durán ◽  
J. Mauricio Rivera ◽  
Jorge Dueñas ◽  
Phil Rowe ◽  
...  
Keyword(s):  
Female Parent ◽  
Nematode Population ◽  
The Other ◽  
Root Weight ◽  
Radopholus Similis ◽  
Population Densities ◽  
Musa Spp ◽  
Root Necrosis ◽  
Burrowing Nematode ◽  
Moderate Resistance

Abstract Twenty-eight genotypes (bred diploids, seed-fertile triploids and tetraploid hybrids) of Musa spp. were evaluated in pot tests in Honduras for resistance and tolerance to Radopholus similis through comparison with reference genotypes (Grand Nain as susceptible and Pisang Jari Buaya and Yangambi Km5 as resistant). Eleven tests were carried out, each with seven to 12 Musa genotypes. Tissueculture plants (TC) or plants grown from a corm (Co) were inoculated with 1000 or 3500 nematodes per plant, respectively. Data on nematode population densities, fresh root weight, percentages dead roots, root necrosis and root bases on the corm with lesions were taken 13-23 weeks after inoculation. In most tests, Gros Michel and Highgate were as susceptible to R. similis as Grand Nain. Resistance was shown by both TC and Co plants of SH-3142, SH-3362, SH-3648 and SH-3723, and by Co plants of SH-2095, SH-3624, the female parents Calcutta 4 and Prata Enana, and the hybrid FHIA-01. Moderate resistance was shown by TC plants of SH-3624 and Co plants of SH-3437, the female parent Pelipita and the hybrids FHIA-18 and FHIA-23. The other genotypes were susceptible to R. similis although the male parents SH-3386 and SH-3640, and the hybrid FHIA-21 had some degree of resistance. FHIA-03 was susceptible but showed tolerance to R. similis.

Host plant response of Eumusa and Australimusa bananas (Musa spp.) to migratory endoparasitic and root-knot nematodes

Nematology ◽  
2000 ◽  
Vol 2 (8) ◽  
pp. 907-916 ◽  
Author(s):  
Ngo Thi Xuyen ◽  
Raf Verlinden ◽  
Ruth Stoffelen ◽  
Dirk De Waele ◽  
Rony Swennen
Keyword(s):  
Host Plant ◽  
Papua New Guinea ◽  
Loamy Sand ◽  
Plant Responses ◽  
Radopholus Similis ◽  
Root Knot Nematodes ◽  
Musa Spp ◽  
Pratylenchus Coffeae ◽  
Meloidogyne Spp

AbstractTwenty-five banana varieties of section Eumusa (AA-group) and seven of the section Australimusa (Fe'i-group) from Papua New Guinea were evaluated for resistance to Radopholus similis, Pratylenchus coffeae and Meloidogyne spp. The host plant responses were compared with the susceptible reference cvs Grande Naine and Cavendish 901. In vitro propagated plants were transferred to the glasshouse in loamy sand and inoculated with approximately 1000 migratory endoparasitic nematodes at 4 weeks after planting. Reproduction of R. similis and P.coffeae in the roots was determined at 8 or 10 weeks, respectively, after inoculation. Reproduction of Meloidogyne spp. was determined 8 weeks after inoculation with 3300 to 5000 eggs. No resistance to R. similis was found in the diploid varieties. The Fe'i variety Rimina and possibly Menei were resistant to R. similis. All varieties tested were susceptible to P.coffeae and Meloidogyne spp. Tests de résistance de bananiers Eumusa et Australimusa (Musa spp.) envers les nématodes endoparasites migrateurs et galligènes - Vingt-cinq variétés de bananier de la section Eumusa (groupe AA) et sept de la section Australimusa (group Fe'i) provenant de Papouasie-Nouvelle Guinée ont été testées pour leur résistance envers Radopholus similis, Pratylenchus coffeae et Meloidogyne spp. Les résponses de ces variétés ont été comparées à celles des cultivars sensibles de référence Grande Naine et Cavendish 901. Des vitroplants ont été mis en place en serre sur un sol argilo-sableux et inoculés 4 semaines après plantation avec environ 1000 R. similis ou P.coffeae dont la reproduction a été déterminée 8 et 10 semaines, respectivement, après inoculation. La reproduction de Meloidogyne spp. l'a été 8 semaines après inoculation avec 3300 à 5000 oeufs. Aucune résistance à R. similis n'a été observée chez les variétés diploïdes. Les variétés du groupe Fe'i Rimina et Menei se sont montrées résistantes à R. similis, avec un certain doute dans le cas de la dernière. Toutes les variétés testées sont sensibles à P.coffeae et Meloidogyne spp.

scholarly journals Frequencies and population densities of plant-parasitic nematodes on banana (Musa AAA) plantations in Ecuador from 2008 to 2014

2016 ◽  
Vol 34 (1) ◽  
pp. 61-73 ◽  
Author(s):  
Orlando Aguirre ◽  
César Chávez ◽  
Alejandro Giraud ◽  
Mario Araya
Keyword(s):  
Parasitic Nematodes ◽  
Radopholus Similis ◽  
Plant Parasitic Nematodes ◽  
Absolute Frequency ◽  
Santo Domingo ◽  
Economic Threshold ◽  
Population Densities ◽  
Meloidogyne Spp ◽  
Mesh Sieve ◽  
Plant Parasitic

An analysis of the plant-parasitic nematodes found on the banana (Musa AAA) plantations in the provinces of Cañar, El Oro, Guayas, Los Rios and Santo Domingo of Ecuador from 2008 to 2014 was carried out. The nematode extraction was done from 25 g of fresh roots that were macerated in a blender and from which nematodes were recovered in a 0.025 mm (No 500) mesh sieve. The data were subjected to frequency analysis in PC-SAS and the absolute frequency was calculated for each individual genus. Four plant parasitic nematodes were detected and, based on their frequencies and population densities, the nematode genera in decreasing order was: Radopholus similis > Helicotylenchus spp. > Meloidogyne spp. > Pratylenchus spp. Radopholus similis was the most abundant nematode, accounting for 49 to 66% of the overall root population, followed by Helicotylenchus spp. with 29 to 45% of the population through- out the different analyzed years. From a total of 13,773 root samples, 96% contained R. similis, 91% Helicotylenchus spp., 35% Meloidogyne spp., and 25% Pratylenchus spp. and, when all of the nematodes that were present were pooled (total nematodes), 99.9% of the samples had nematodes. A large number of samples with a nematode population above the economic threshold suggested by Agrocalidad, INIAP and Anemagro (2,500-3,000 nematodes/100 g of roots) was observed in all of the years, the months and the five sampled provinces. The statistical differences (P<0.0001) detected for the nematode frequencies among the years, months and provinces, more than likely, were associated with the high number of samples included in each year, month and province because the variations in the frequencies for each nematode genus were small.

Influence of Pratylenchus coffeae and Meloidogyne spp. on plant growth and yield of banana (Musa spp.) in Vietnam

Nematology ◽  
2006 ◽  
Vol 8 (2) ◽  
pp. 265-271 ◽  
Author(s):  
Inge Van den Bergh ◽  
Nguyen Thi Tuyet ◽  
Duong Thi Minh Nguyet ◽  
Dirk De Waele ◽  
Ho Huu Nhi
Keyword(s):  
Plant Growth ◽  
Plant Height ◽  
The Other ◽  
Growth And Yield ◽  
Cycle Duration ◽  
Musa Spp ◽  
Pratylenchus Coffeae ◽  
Meloidogyne Spp ◽  
Crop Cycle ◽  
North Vietnam

AbstractThe objective of the presented study was to look at the effect of Pratylenchus coffeae and Meloidogyne spp., the two major nematode species associated with banana ( Musa spp.) in North Vietnam, on the plant growth and yield of cv. Grand Naine (AAA) and four local banana cultivars, Ngu Tien (AA), Hot (BB), Ben Tre (AAA) and Tay Tia (ABB). Inoculated plants were compared with nematode-free control plants in terms of plant growth, crop cycle duration and yield under field conditions in Hanoi, North Vietnam. Infection with P. coffeae did not affect the crop cycle duration or the plant height, the pseudostem girth or the number of standing leaves at harvest of any of the cultivars, but did significantly reduce the bunch weight of cv. Ngu Tien from 6.6 to 5.3 kg (20% reduction), the bunch weight of cv. Tay Tia from 7.3 to 5.9 kg (19% reduction) and the bunch weight of cv. Grand Naine from 6.9 to 6.0 kg (13% reduction). The bunch weight of cvs Hot and Ben Tre was not significantly affected. The number of hands of the inoculated and the control plants did not differ for any of the cultivars but infection with P. coffeae resulted in a 34% reduction in the number of fingers of cv. Grand Naine (from 67 to 44 fingers). The number of fingers of the other cultivars were not affected by inoculation with P. coffeae. Infection with Meloidogyne spp. did not affect the time from planting to harvest for any of the cultivars, but the time from planting to shooting was increased from 367 to 387 days for cv. Ngu Tien. The plant height and the pseudostem girth at harvest of cv. Grand Naine were significantly reduced by 27% and 18%, respectively. The number of standing leaves as well as the plant height and the pseudostem girth at harvest of the other cultivars were unaffected. Infection with Meloidogyne spp. significantly reduced the bunch weight of cv. Ngu Tien from 6.6 to 5.1 kg (23% reduction) and the bunch weight of cv. Grand Naine from 6.9 to 5.6 kg (19% reduction). The bunch weight of cv. Hot was unaffected. Infection with Meloidogyne spp. reduced the number of hands of cv. Ngu Tien by 14% (from 6.2 to 5.4 hands) the number of fingers of cv. Grand Naine by 25% (from 67 to 50 fingers). The number of hands and fingers of the other cultivars were not affected. The results indicate that in areas where the burrowing nematode, Radopholus similis, is not present, other nematodes, especially Meloidogyne spp., may become more important in terms of damage and yield loss.

scholarly journals Bacillus subtilis no tratamento de mudas de bananeira infectadas por fitonematoides

Revista CERES ◽  
2018 ◽  
Vol 65 (1) ◽  
pp. 99-103
Author(s):  
Jardel Jean da Silva Araújo ◽  
Maria de Fátima Silva Muniz ◽  
Gilson Moura Filho ◽  
Fernando da Silva Rocha ◽  
José Mauro da Cunha e Castro
Keyword(s):  
Bacillus Subtilis ◽  
Radopholus Similis ◽  
Musa Spp ◽  
Meloidogyne Spp

RESUMO A utilização de material propagativo sadio constitui importante medida de controle para os nematoides da bananeira (Musa spp.), pois, assim, evita-se a introdução desses patógenos em áreas isentas. O objetivo deste trabalho foi avaliar o efeito da aplicação de Bacillus subtilis (Nemathel®) no tratamento de mudas, do tipo chifre, de bananeira subgrupo Terra cv. Comprida, infectadas por uma população mista com Radopholus similis, Meloidogyne spp., Pratylenchus spp. e Helicotylenchus spp. Foram testadas diferentes doses do produto (50; 100; 150; 200 e 250 mL/10 L de água) mais as testemunhas positiva (nematicida) e negativa (água). As mudas foram imersas em cada um dos tratamentos por 30 minutos e plantadas em vasos com solo esterilizado. A avaliação foi realizada após quatro meses e as doses de 200 e 250 mL do produto por 10 L de água proporcionaram as maiores reduções das populações dos nematoides em raízes e rizomas.

scholarly journals Plant parasitic nematode communities associated with the crop banana (Musa spp.) at Attappady Tribal hill area, India

2020 ◽  
Vol 12 (3) ◽  
pp. 608-618
Author(s):  
Ashfak A. ODALA ◽  
Rasmi A. RAMANATHAN ◽  
Usman ARERATH
Keyword(s):  
Biosphere Reserve ◽  
Musa Acuminata ◽  
Parasitic Nematodes ◽  
Plant Parasitic Nematodes ◽  
Musa Spp ◽  
Musa Paradisiaca ◽  
Hill Area ◽  
Meloidogyne Spp ◽  
Nilgiri Biosphere Reserve ◽  
Plant Parasitic

Attappady is a region of immense biological importance comes under the Nilgiri Biosphere Reserve area of India at Palakkad district. Biodiversity study of this hill area has great importance in conservative science. Except a national range study for nematode fauna of banana (Musa spp.) in Indian banana fields, a detailed survey of this agriculturally and environmentally important area has not reported till now. The diversity analysis of plant parasitic nematodes was done with samples taken from rhizosphere soil and roots of banana at this area. Comparing with the reported nationwide study the present study newly reported the presence of Aphelenchus spp., Dorylaimoides spp., Hoplolaimus spp., Rotylenchulus spp., Tylenchorynchus spp. and Tylenchus spp. from the crop banana other than the already reported one’s such as Helicotylenchus spp., Meloidogyne spp., Pratylenchus spp. and Radopholus spp. The analysis of nematode genera in different banana cultivars such as Musa × paradisiaca L. (AAB) ‘Nendran’, Musa acuminata Colla (AAA) ‘Robusta’, Musa acuminata Colla (AA) ‘Kadali’ and Musa × paradisiaca L. (Mysore AAB) ‘Poovan’ revealed differences in the reaction to attack between genotypes, and that the cultivar ‘Nendran’ was the most susceptible one to plant parasitic nematodes.

Soil abiotic factors associated with Meloidogyne spp. and Pratylenchus spp. populations in sugarcane

Nematology ◽  
2020 ◽  
pp. 1-13
Author(s):  
Marissônia de A. Noronha ◽  
Marcelo F. Fernandes ◽  
Maria de Fatima S. Muniz ◽  
Elvira Maria R. Pedrosa ◽  
Mayara C. Assunção ◽  
...  
Keyword(s):  
Organic Matter ◽  
Soil Organic Matter ◽  
Root Zone ◽  
Abiotic Factors ◽  
Regression Tree ◽  
Parasitic Nematodes ◽  
Population Densities ◽  
Multivariate Regression Tree ◽  
Soil Variables ◽  
Meloidogyne Spp

Summary Meloidogyne spp. and Pratylenchus spp. are the most damaging plant-parasitic nematodes to sugarcane and the knowledge of soil characteristics that influence the occurrence of these pathogens can be useful in their management. With the objective to investigate the relationships between soil variables and populations of Meloidogyne spp. and Pratylenchus spp. in sugarcane fields, root-zone soil and root samples were collected from 20 farms located in 16 municipalities in Alagoas state, Brazil. The multivariate regression tree technique was used to model the population density’s response variables for Meloidogyne spp. and Pratylenchus spp. in the root-zone soil and the roots according to sugarcane cultivars, soil organic matter, and soil chemical and physical variables. The results showed the existence of associations between soil factors, sugarcane cultivars and populations of nematodes. Root samples from soils with K > 37.79 mmolc dm−3, Al < 5.93 mmolc dm−3 and sugarcane ‘RB92579’, ‘SP753046’, ‘SP813250’ and ‘SP921631’ showed the lowest Pratylenchus spp. population densities. However, the lowest densities in the root-zone were found in soils with sum of bases > 1.91 mmolc dm−3, Ca:Mg ratio < 1:2 and soil organic matter < 10.7 g dm−3. The lowest population densities of Meloidogyne spp. in roots were associated with sugarcane ‘RB92579’, ‘RB93509’, ‘RB98710’, ‘SP791011’ and ‘SP921631’ and soil aggregate mean diam. > 0.48 mm, while root-zone densities were minimum in soils with P > 28.59 mg dm−3. This information should support further studies to investigate the effect of each variable on populations of Pratylenchus and Meloidogyne.

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