Abstract
Efficacy of neem leaf based compost and Trichoderma harzianum solution were assessed on root knot nematode pest of two cowpea varieties at the screen house of the International Institute of Tropical Agriculture (IITA), Ibadan, Nigeria during 2012 planting season. The two cowpea varieties which have been confirmed to be susceptible to root knot nematode, IT96D-610 and IT84S-2246-4 were the test crops. The experimental pots (10 kg soil) were inoculated with 5,000 root knot nematode eggs. Treatments were neem compost and T. harzianum solution with application rates of 2 ton/ha and 1 × 10−7 spores respectively. The pots that were not treated served as the control. Each treatment was replicated 4 times while the statistical design was a complete randomized design. Data collected included growth and yield of cowpea, as well as the nematode numbers in the soil and root. The results indicated that neem compost and T. harzianum solution significantly increased growth and yield of IT96D-610 and IT84S-2246-4 cowpea varieties grown in the root knot nematode inoculated soil, while root knot nematode population in soil and root were significantly reduced. Gall index was also significantly lower in the neem compost and T. harzianum treated cowpea compared to the untreated control.
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Claims 6
Claim · model-written summary
Neem compost significantly increased growth and yield of both cowpea varieties.
- Taxon
- cowpea
Vigna unguiculatae0 - Material
- IT96D-610 and IT84S-2246-4e0
- Treatment
- neem composte0
- Interactor
- root knot nematode
_penetrates_a_tomato_root_-_USDA-ARS.jpg?width=60)
Meloidogynee0pest - Outcome
- growth and yielde0
- Direction
- increasede0
- Comparator
- untreated controle2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
_penetrates_a_tomato_root_-_USDA-ARS.jpg?width=500)
Verbatim
e0“neem compost and T. harzianum solution significantly increased growth and yield of IT96D-610 and IT84S-2246-4 cowpea varieties grown in the root knot nematode inoculated soil”
e1“neem compost and T. harzianum solution significantly increased growth and yield of IT96D-610 and IT84S-2246-4 cowpea varieties grown in the root knot nematode inoculated soil”
e2“Gall index was also significantly lower in the neem compost and T. harzianum treated cowpea compared to the untreated control”
Claim · model-written summary
T. harzianum solution significantly increased growth and yield of both cowpea varieties.
- Taxon
- cowpeaVigna unguiculatae0
- Material
- IT96D-610 and IT84S-2246-4e0
- Treatment
- T. harzianum solutione0
- Interactor
- root knot nematodeMeloidogynee0pest
- Second interactor
- T. harzianum
Trichoderma harzianume0biocontrol_agent - Outcome
- growth and yielde0
- Direction
- increasede0
- Comparator
- untreated controle2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“neem compost and T. harzianum solution significantly increased growth and yield of IT96D-610 and IT84S-2246-4 cowpea varieties grown in the root knot nematode inoculated soil”
e1“neem compost and T. harzianum solution significantly increased growth and yield of IT96D-610 and IT84S-2246-4 cowpea varieties grown in the root knot nematode inoculated soil”
e2“Gall index was also significantly lower in the neem compost and T. harzianum treated cowpea compared to the untreated control”
Claim · model-written summary
Neem compost significantly reduced nematode populations in soil and roots.
- Taxon
- cowpeaVigna unguiculatae1
- Treatment
- neem composte1
- Interactor
- root knot nematodeMeloidogynee0pest
- Outcome
- root knot nematode population in soil and roote0
- Direction
- reducede0
- Comparator
- untreated controle2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“root knot nematode population in soil and root were significantly reduced”
e1“neem compost and T. harzianum solution significantly increased growth and yield of IT96D-610 and IT84S-2246-4 cowpea varieties grown in the root knot nematode inoculated soil”
e2“Gall index was also significantly lower in the neem compost and T. harzianum treated cowpea compared to the untreated control”
Claim · model-written summary
T. harzianum solution significantly reduced nematode populations in soil and roots.
- Taxon
- cowpeaVigna unguiculatae1
- Treatment
- T. harzianum solutione1
- Interactor
- root knot nematodeMeloidogynee0pest
- Second interactor
- T. harzianumTrichoderma harzianume1biocontrol_agente0
- Outcome
- root knot nematode population in soil and roote0
- Direction
- reducede0
- Comparator
- untreated controle2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“root knot nematode population in soil and root were significantly reduced”
e1“neem compost and T. harzianum solution significantly increased growth and yield of IT96D-610 and IT84S-2246-4 cowpea varieties grown in the root knot nematode inoculated soil”
e2“Gall index was also significantly lower in the neem compost and T. harzianum treated cowpea compared to the untreated control”
Claim · model-written summary
Neem compost significantly lowered gall index relative to untreated controls.
- Taxon
- cowpeaVigna unguiculatae0
- Treatment
- neem composte0
- Interactor
- root knot nematodeMeloidogynee1peste0
- Outcome
- Gall indexe0
- Direction
- lowere0
- Comparator
- untreated controle0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Gall index was also significantly lower in the neem compost and T. harzianum treated cowpea compared to the untreated control”
e1“neem compost and T. harzianum solution significantly increased growth and yield of IT96D-610 and IT84S-2246-4 cowpea varieties grown in the root knot nematode inoculated soil”
e2“Gall index was also significantly lower in the neem compost and T. harzianum treated cowpea compared to the untreated control”
Claim · model-written summary
T. harzianum significantly lowered gall index relative to untreated controls.
- Taxon
- cowpeaVigna unguiculatae0
- Treatment
- T. harzianume0
- Interactor
- root knot nematodeMeloidogynee1peste0
- Second interactor
- T. harzianumTrichoderma harzianume0biocontrol_agent
- Outcome
- Gall indexe0
- Direction
- lowere0
- Comparator
- untreated controle0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Gall index was also significantly lower in the neem compost and T. harzianum treated cowpea compared to the untreated control”
e1“neem compost and T. harzianum solution significantly increased growth and yield of IT96D-610 and IT84S-2246-4 cowpea varieties grown in the root knot nematode inoculated soil”
e2“Gall index was also significantly lower in the neem compost and T. harzianum treated cowpea compared to the untreated control”
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Trichoderma harzianum · Meloidogyne · Vigna unguiculata (cowpea)Results agree
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- positive
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- positive
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3 papers in the same direction as this paper
- positive
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- positive
Claims are grouped by organism, treatment and what was measured or targeted. A paper counts as positive when any of its claims in the group is positive.