Abstract
Aim: To enumerate resistance in Kenaf (fibre crop) genotypes with distinct host suitability, biological performance and growth parameters of mealybug, Phenacoccus solenopsis Tinsley. Methodology: Laboratory and glasshouse experiments were conducted to assess the host suitability and resistance of genotypes on the basis of relative colonization, growth and survival in terms of establishment rate and nymphal duration of mealybug. Results: The wild accession, WHIJ 50 belonging to Hibiscus spp. and the variety JRM 3 of H. cannabinus recorded significantly lowest female establishment rate, instantaneous population increase, nymphal survival and growth index with longer nymphal duration possessing possible antixenosis- and antibiosis- mediated resistance. On the other extreme the susceptible genotype, WHIN 47 (H. acetocella) proved favourable for crawler developmental parameters. Interpretation: The level, mechanism and basis of resistance in kenaf enumerated from this study may pave the way for creating vigorous kenaf hybrids resistant to cotton mealybug.
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Claims 4
Claim · model-written summary
WHIJ 50 had significantly lowest mealybug establishment, population increase, survival and growth index, with longer nymphal duration.
- Material
- WHIJ 50e0
- Interactor
- Phenacoccus solenopsis Tinsley
Phenacoccus solenopsise1pest - Outcome
- female establishment rate, instantaneous population increase, nymphal survival and growth indexe0
- Direction
- loweste0
- Qualifier
- longer nymphal duratione0
HibiscusOrganisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The wild accession, WHIJ 50 belonging to Hibiscus spp. and the variety JRM 3 of H. cannabinus recorded significantly lowest female establishment rate, instantaneous population increase, nymphal survival and growth index with longer nymphal duration”
e1“mealybug, Phenacoccus solenopsis Tinsley”
Claim · model-written summary
JRM 3 had significantly lowest mealybug establishment, population increase, survival and growth index, with longer nymphal duration.
- Taxon
- H. cannabinus
Hibiscus cannabinuse0 - Material
- JRM 3e0
- Interactor
- Phenacoccus solenopsis TinsleyPhenacoccus solenopsise1pest
- Outcome
- female establishment rate, instantaneous population increase, nymphal survival and growth indexe0
- Direction
- loweste0
- Qualifier
- longer nymphal duratione0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The wild accession, WHIJ 50 belonging to Hibiscus spp. and the variety JRM 3 of H. cannabinus recorded significantly lowest female establishment rate, instantaneous population increase, nymphal survival and growth index with longer nymphal duration”
e1“mealybug, Phenacoccus solenopsis Tinsley”
Claim · model-written summary
The authors suggest antixenosis and antibiosis could mediate resistance of WHIJ 50 and JRM 3.
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“WHIJ 50 belonging to Hibiscus spp. and the variety JRM 3 of H. cannabinus recorded significantly lowest female establishment rate, instantaneous population increase, nymphal survival and growth index with longer nymphal duration possessing possible antixenosis- and antibiosis- mediated resistance”
Claim · model-written summary
WHIN 47 was favourable for mealybug crawler development.
- Taxon
- H. acetocellae0
- Material
- WHIN 47e0
- Interactor
- Phenacoccus solenopsis TinsleyPhenacoccus solenopsise1pest
- Outcome
- crawler developmental parameterse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“WHIN 47 (H. acetocella) proved favourable for crawler developmental parameters”
e1“mealybug, Phenacoccus solenopsis Tinsley”