Abstract
Susceptibility of developing ears of several corn hybrids ( Zea mays L.) to infection by Aspergillus flavus Link ex Fr. determined by aflatoxin production was studied. Five experimental single‐cross hybrids (SC) adapted for growth in the South and a single‐cross hybrid (A) adapted to the Corn Belt were grown in South Carolina and Florida. Treatments consisted of: (a) periodic spraying with an insecticide to control ear damage by insects; (b) inoculation of ears with A. flavus spores; (c) mechanical damage of ears to simulate insect damage; and (d) nontreated controls. Cracked kernels from individual ears were examined for bright greenish‐yellow fluorescence (BGY). Shelled corn from each treatment replication was combined, blended, sampled, and assayed for aflatoxin. The five SC hybrids exhibited a lower level of BGY occurrence and aflatoxin than hybrid A. Inoculating silks with A. flavus spores increased the incidence of BGY fluorescence and concentrations of aflatoxin. Corn from nontreated control ears was extensively contaminated with aflatoxin. Insecticide reduced but did not eliminate insect damage and toxin development in field corn except for one hybrid (SC76 ✕ SC413). The results suggested relationship between insect damage and presence of the toxin.
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Claims 5
Claim · model-written summary
Five SC hybrids had a lower level of BGY occurrence and aflatoxin than hybrid A.
- Taxon
- corn
Zea mays subsp. mayse1 - Material
- SC hybridse2
- Interactor
- Aspergillus flavus
Aspergillus flavuse1pathogen - Outcome
- BGY occurrence and aflatoxine2
- Direction
- lowere2
- Comparator
- hybrid Ae2
- Setting
- South Carolina and Floridae0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Five experimental single‐cross hybrids (SC) adapted for growth in the South and a single‐cross hybrid (A) adapted to the Corn Belt were grown in South Carolina and Florida”
e1“Susceptibility of developing ears of several corn hybrids ( Zea mays L.) to infection by Aspergillus flavus Link ex Fr.”
e2“The five SC hybrids exhibited a lower level of BGY occurrence and aflatoxin than hybrid A”
Claim · model-written summary
Inoculating silks with A. flavus spores increased the incidence of BGY fluorescence and aflatoxin concentrations relative to nontreated controls.
- Taxon
- cornZea mays subsp. mayse1
- Organ / stage
- silkse3
- Treatment
- Inoculating silks with A. flavus sporese3
- Interactor
- A. flavusAspergillus flavuse3pathogen
- Outcome
- incidence of BGY fluorescence and concentrations of aflatoxine3
- Direction
- increasede3
- Comparator
- nontreated controlse4
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“Susceptibility of developing ears of several corn hybrids ( Zea mays L.) to infection by Aspergillus flavus Link ex Fr.”
e3“Inoculating silks with A. flavus spores increased the incidence of BGY fluorescence and concentrations of aflatoxin”
e4“(d) nontreated controls”
Claim · model-written summary
Insecticide reduced but did not eliminate insect damage and toxin development in field corn.
Verbatim
e4“(d) nontreated controls”
e5“Insecticide reduced but did not eliminate insect damage and toxin development in field corn except for one hybrid”
Claim · model-written summary
Corn from nontreated control ears was extensively contaminated with aflatoxin.
- Taxon
- CornZea mays subsp. mayse6
- Outcome
- contaminated with aflatoxine6
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e6“Corn from nontreated control ears was extensively contaminated with aflatoxin”
Claim · model-written summary
The results suggested a relationship between insect damage and the presence of the toxin.
- Taxon
- cornZea mays subsp. mayse1
- Treatment
- insect damagee7
- Outcome
- presence of the toxine7
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“Susceptibility of developing ears of several corn hybrids ( Zea mays L.) to infection by Aspergillus flavus Link ex Fr.”
e7“The results suggested relationship between insect damage and presence of the toxin”
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