Abstract
The effects of cold and hot aqueous extracts of 5 test plants (Luffa cylindrica, Momordica charantia, Euphorbia hirta, Desmodium scorpiurus and Stachytarpheta cayennensis), wood ash of Gmelina aborea, a synthetic insecticide (Karate –Lambda cyhalothrin) and untreated tap water (control) were evaluated against the egg hatchability and control of Meloidogyne spp. in cowpea (Vigna unguiculata (L.) Walp) in the laboratory and greenhouse. The experiments were laid out in a Completely Randomized Design (CRD) with 13 treatments (Hot water extracts (HWE) and cold water extracts (CWE) of L. cyclindrica; E. hirta, D. scorpiurus, S. cayennesis, M. charantia, wood ash, L. cyhalothrin and control) replicated 3 times. The result of the laboratory experiment showed that the hot and cold water extracts of L. cylindrica and HWE of M. charantia significantly (p < 0.05) inhibited the hatching of nematode eggs. Results obtained from the Greenhouse indicated that HWE of E. hirta, CWE of S. cayennesis, CWE and HWE of L. cylindrica significantly improved cowpea yield, (p< 0.05). The aqueous extracts reduced the number of galls on the roots, nematode populations in the root and soil. The results obtained G. aborea extracts did not differ significantly with the synthetic nematicide – L. cyhalothrin. The leaf extracts of the test plants have potential as sources of botanical nematicides to reduce the devastating effects of plant-parasitic nematodes in cowpea fields. Key words: Plant extracts, cowpea, lambda-cyhalothtrin, inoculum, nematomde.
Abstract from the paper’s OpenAlex record, shown for indexing and research. Copyright remains with the authors or the publisher. Read at the source ↗
The text the model read, with the source record’s inline markup (italics, sub- and superscripts) rendered and its character entities decoded; quote offsets refer to the raw text.
Claims 4
Claim · model-written summary
Hot and cold L. cylindrica extracts significantly inhibited nematode egg hatch.
- Treatment
- hot and cold water extracts of L. cylindricae0
- Outcome
- hatching of nematode eggse0
- Direction
- inhibitede0
Not reportedTaxonComparator
Verbatim
e0“hot and cold water extracts of L. cylindrica and HWE of M. charantia significantly (p < 0.05) inhibited the hatching of nematode eggs.”
Claim · model-written summary
Hot M. charantia extract significantly inhibited nematode egg hatch.
Not reportedTaxonComparator
Verbatim
e0“HWE of M. charantia significantly (p < 0.05) inhibited the hatching of nematode eggs.”
Claim · model-written summary
The listed extracts significantly improved cowpea yield.
- Taxon
- cowpea
Vigna unguiculatae0 - Treatment
- HWE of E. hirta, CWE of S. cayennesis, CWE and HWE of L. cylindricae0
- Outcome
- cowpea yielde0
- Direction
- improvede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“HWE of E. hirta, CWE of S. cayennesis, CWE and HWE of L. cylindrica significantly improved cowpea yield, (p< 0.05).”
Claim · model-written summary
Aqueous extracts reduced root galls and nematode populations.
- Treatment
- aqueous extractse0
- Outcome
- number of galls on the roots, nematode populations in the root and soile0
- Direction
- reducede0
Not reportedTaxonComparator
Verbatim
e0“The aqueous extracts reduced the number of galls on the roots, nematode populations in the root and soil.”
The same questions in other papers
heat · yield · Vigna unguiculata (cowpea)Positive and negative results
2 papers in the same direction as this paper · 5 in the opposite direction
- negative
- no effect
- negative
4 papers more in this group
See all 8 papers →botanical · yield · Vigna unguiculata (cowpea)Positive and negative results
77 papers in the same direction as this paper · 1 in the opposite direction · 1 reporting no difference from an alternative
- negative
- no effect
- positive
76 papers more in this group
See all 80 papers →cold · yield · Vigna unguiculata (cowpea)Results agree
1 paper in the same direction as this paper
- 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.