Investigations On the Resistance of Rose Root-Stocks To Meloidogyne Hapla and Pratylenchus Penetrans

Hendrickx, G.; Coolen, W. A.

doi:10.1163/187529272x00386

Cited by 7 publications

(4 citation statements)

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“…In our study R. corymbifera ˈLaxaˈ was a host for M. hapla. This is confirmed by [6] who tested 13 rose rootstocks in the field and all rootstocks turned out to be hosts for M. hapla, except for Rosa canina cv Success and R. canina cv Heinsohn's Rekord, being poor hosts.…”

Section: Fig 1 Linear Relationship Between Root Gall Number and Time ...mentioning

confidence: 59%

“…Recently, Meloidogyne hapla was found to be the most frequent and abundant species in rose greenhouses in Ethiopia [5]. For temperate regions, the damage potential of M. hapla on cut flowers is well documented throughout the world [6][7][8][9][10]. However, little is known about the damage potential of M. hapla on cut flowers other than roses as well as of the tropical root-knot nematode species on cut flowers grown in Ethiopia.…”

Section: Introductionmentioning

confidence: 99%

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Host Suitability of Cut-Flowers to Meloidogyne spp. and Population Dynamics of M. hapla on the rootstock Rosa corymbifera ˈLaxa

Meressa

2014

AJEA

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The host suitability of cut-flowers to Meloidogyne spp. was tested under greenhouse conditions. In an experiment, the reaction of seven cut-flower species viz. Dianthus plumarius, Dianthus caryophyllus, Gypsophila paniculata, Limonium sinuatum (Fortress Dunkelblau), Limonium sinuatum (Petite Bouquet Mix), Rosa corymbifera ˈLaxaˈ and Freesia laxa against the root-knot nematode Meloidogyne hapla and M. incognita was evaluated. There were significant (P<0.001) differences in plant species as host for either M. hapla or M. incognita. Freesia laxa appeared to be a poor host for M. hapla and M. incognita with a reproductive factor of 0.5 and 1.1, respectively. Gypsophila paniculata and Rosa corymbifera were not suitable hosts for M. incognita resulting in a reproductive factor below one. On the other hand M. hapla reproduced significantly (P<0.05) higher on R. corymbifera ˈLaxaˈ than on the other plant species assessed. In all plant species, nematode infected plants were less vigorous than their uninfected controls. In the second test, the pathogenicity and population dynamics of M. hapla on the rootstock R.

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Section: Fig 1 Linear Relationship Between Root Gall Number and Time ...mentioning

confidence: 59%

Section: Introductionmentioning

confidence: 99%

Host Suitability of Cut-Flowers to Meloidogyne spp. and Population Dynamics of M. hapla on the rootstock Rosa corymbifera ˈLaxa

Meressa

2014

AJEA

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“…The model depicts that all rootstock species suffered from M. hapla damage even at the lowest initial densities, and plant weight declined up to nematode densities approximately 1 J2/g soil after which it became stable. Damage to rose rootstocks due to M. hapla infestation was also revealed by Coolen and Hendrickx (1972). The shoot-root ratio was not affected by increasing nematode densities, indicating that the reduction in root and shoot biomass by M. hapla followed a similar trend.…”

Section: Plant Weightmentioning

confidence: 81%

“…The use of alternative control measures such as resistant or tolerant cultivars is of paramount importance (Wang et al 2004). Coolen and Hendrickx (1972) have shown the presence of partial resistance in cultivars of Rosa canina and R. multiflora to M. hapla. However, those evaluations were carried out with just one nematode density and the rose species might have reacted differently at different nematode densities, as crop damage becomes evident when nematode densities at planting are above the tolerance limit (Viaene and Abawi 1996).…”

Section: Introductionmentioning

confidence: 98%

Population Dynamics and Damage Potential of Meloidogyne hapla to Rose Rootstock Species

Meressa

Dehne

Hallmann

2016

Journal of Phytopathology

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The relationship between initial population densities (Pi) of Meloidogyne hapla on growth of three rose rootstocks (Rosa corymbifera 'Laxa', R. multiflora and R. canina 'Inermis') and nematode population development was studied. Each plant species was inoculated with ranges of nematode densities of 0, 0.062, 0.125, 0.25, 0.50, 1, 2, 4, 8, 16, 32, 64 and 128 secondstage juvenile/g soil and were allowed to grow for 9 weeks. Seinhorst yield model y ¼ m þ 1 À m ð ÞZ PiÀT was fitted to total fresh biomass data of the rootstocks. The tolerance limits (T) were 0.04, 0.09 and 0.01 J2/g soil and the minimum yield (m) 0.65, 0.47 and 0.43 for R. corymbifera 'Laxa', R. multiflora and R. canina 'Inermis', respectively. The reproductive factor (Pf/Pi) was highest at low initial nematode densities for all rootstocks and then decreased to below maintenance level with increasing initial population densities. Root gall severity consistently increased with initial nematode population density. Furthermore, number of root galling showed a strong positive relationship with final nematode population per gram root fresh weight. The relation between Pi and Pf was also fitted to the Seinhorst population model (Pf = (M*Pi)/Pi + M/a). Rosa multiflora supported the population of M. hapla to a maximum population density (M) of 27.53 J2/g soil with an estimated average maximum multiplication rate (a) of 24.39. For R. corymbifera 'Laxa' and R. canina, the maximum multiplication rate was 4.34 and 3.62 and the maximum population density 6.08 and 4.78 J2/g dry soil, respectively. Hence, it was demonstrated that all three rootstocks were susceptible to even low initial nematode densities and therefore are considered good hosts for M. hapla.

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Rosa multiflora ‘Ludiek’, a rootstock with resistant features to the root lesion nematode Pratylenchus vulnus

Schneider

s'Jacob

Pol

1995

Scientia Horticulturae

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Investigations On the Resistance of Rose Root-Stocks To Meloidogyne Hapla and Pratylenchus Penetrans

Cited by 7 publications

References 0 publications

Host Suitability of Cut-Flowers to Meloidogyne spp. and Population Dynamics of M. hapla on the rootstock Rosa corymbifera ˈLaxa

Host Suitability of Cut-Flowers to Meloidogyne spp. and Population Dynamics of M. hapla on the rootstock Rosa corymbifera ˈLaxa

Population Dynamics and Damage Potential of Meloidogyne hapla to Rose Rootstock Species

Rosa multiflora ‘Ludiek’, a rootstock with resistant features to the root lesion nematode Pratylenchus vulnus

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