Abstract
Abstract The fertilizing and nematicidal effects of three organic amendments were evaluated in a pot experiment on melon plants infested by the root-knot nematode Meloidogyne incognita. A soil artificially infested with 4 eggs and juveniles/ ml soil of the nematode was amended with: a) virgin olive pomace (VOP); b) composted olive pomace (COP); c) chicken manure based fertilizer (CM) and d) chicken manure based fertilizer combined with the biological control agent Paecilomyces lilacinus strain 251, brand name BioAct WG (CMB). VOP was applied at doses of 11 (VOP-A), 22 (VOP-B) and 44 t/ha (VOP-C); COP at 4.5 (COP-A), 9 (COP-B) and 18 t/ha (COP-C); CM at 3 t/ha and CMB at 3 t/ha combined with 4 kg/ha of BioAct WG. Untreated soil was used as control. The treatments CM, CMB, VOP-B and COP-B were established on the basis of N requirement of melon plants (120 kg/ha) taking into account soil and amendments N availability. Two weeks later amendment application and nematode inoculation, the soil was poured in 4.8 l clay pots which were arranged in a greenhouse according to a randomized block design with ten replications for each treatment. A one-month old melon seedling (cv. Galia) was transplanted in each pot and organic farming management practices were used during the growing period. At the end of the experiment, 60 days after transplant, plants were uprooted and height, fresh and dry shoot and root weights were recorded. Root gall index, on the roots, caused by the nematode attack, was estimated according to a 0–5 scale. Final nematode population density and reproduction rate were also calculated for each pot. All data were subjected to statistical analysis of variance (ANOVA) and means compared according to Least Significant Difference’s Test. Nematode population and root infestation were significantly suppressed by the addition of all amendments, compared to untreated control. However, CM and CMB resulted in a total more suppressive effect and in a significantly higher plant growth in comparison to all the other treatments. A significant correlation was found between root gall index and eggs and juveniles/g root and final nematode population density. No signifycant correlations were found between nematological parameters or plant growth parameters and amendment doses.
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Claims 5
Claim · model-written summary
Nematode population and root infestation were significantly suppressed by all organic amendments compared to untreated control.
- Taxon
- melon
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Cucumis meloe0 - Treatment
- addition of all amendmentse1
- Interactor
- Meloidogyne incognita
_penetrates_a_tomato_root_-_USDA-ARS.jpg?width=60)
Meloidogyne incognitae0pest - Outcome
- Nematode population and root infestatione1
- Direction
- suppressede1
- Comparator
- untreated controle1
- Setting
- pot experimente0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
.jpg?width=500)
_penetrates_a_tomato_root_-_USDA-ARS.jpg?width=500)
Verbatim
e0“The fertilizing and nematicidal effects of three organic amendments were evaluated in a pot experiment on melon plants infested by the root-knot nematode Meloidogyne incognita”
e1“Nematode population and root infestation were significantly suppressed by the addition of all amendments, compared to untreated control”
Claim · model-written summary
Chicken manure with and without Paecilomyces lilacinus gave a more suppressive effect on the nematode than all other treatments.
- Taxon
- melonCucumis meloe0
- Treatment
- CM and CMBe2
- Interactor
- Meloidogyne incognitaMeloidogyne incognitae0pest
- Outcome
- suppressive effecte2
- Direction
- more suppressivee2
- Comparator
- all the other treatmentse2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The fertilizing and nematicidal effects of three organic amendments were evaluated in a pot experiment on melon plants infested by the root-knot nematode Meloidogyne incognita”
e2“However, CM and CMB resulted in a total more suppressive effect and in a significantly higher plant growth in comparison to all the other treatments”
Claim · model-written summary
CM and CMB gave significantly higher plant growth in melon than all other treatments.
- Taxon
- melonCucumis meloe0
- Treatment
- CM and CMBe2
- Outcome
- plant growthe2
- Direction
- highere2
- Comparator
- all the other treatmentse2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The fertilizing and nematicidal effects of three organic amendments were evaluated in a pot experiment on melon plants infested by the root-knot nematode Meloidogyne incognita”
e2“However, CM and CMB resulted in a total more suppressive effect and in a significantly higher plant growth in comparison to all the other treatments”
Claim · model-written summary
Root gall index was significantly correlated with eggs and juveniles per gram of root and final nematode population density.
- Taxon
- melonCucumis meloe0
- Interactor
- Meloidogyne incognitaMeloidogyne incognitae0pest
- Outcome
- root gall indexe3
- Qualifier
- eggs and juveniles/g root and final nematode population densitye3
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The fertilizing and nematicidal effects of three organic amendments were evaluated in a pot experiment on melon plants infested by the root-knot nematode Meloidogyne incognita”
e3“A significant correlation was found between root gall index and eggs and juveniles/g root and final nematode population density”
Claim · model-written summary
Nematological and plant growth parameters were not significantly correlated with amendment doses.
- Taxon
- melonCucumis meloe0
- Treatment
- amendment dosese4
- Outcome
- nematological parameters or plant growth parameterse4
- Direction
- no_changeinferrede4
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The fertilizing and nematicidal effects of three organic amendments were evaluated in a pot experiment on melon plants infested by the root-knot nematode Meloidogyne incognita”
e4“No signifycant correlations were found between nematological parameters or plant growth parameters and amendment doses”
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