Abstract
Maize mosaic and stunt, occurring to a considerable degree under Cuban field conditions, was determined as a virus disease, transmissible by the corn planthopperPeregrinus maidis Ashm. Negative results were obtained in the experiments in which aphidsRhopalosiphum maidis Fitch, served as vectors or when transmission was realized mechanically using the sap of infected plants. The incubation period in the infected plants fluctuated between 15 and 27 days. Besides maize, the virus disease could be transmitted also to sorghum(Sorghum vulgare Pees.) and to weed plants of the grassRottboellia exaltata L. It follows from the results that the disease concerned is identical with virus stripe, described in 1927 in Cuba by Stahl as corn stripe (raya del maiz). Under field conditions the disease spread fluctuated in average from 3.4 to 46 per cent of inflected plants. Plant communities concentrated on larger areas which received good agro technique and chemical protection against pests exhibited lower infection for the most part The most suitable time for the determination of spread and infection intensity under field conditions is that shortly before and during flowering of maize.
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Claims 3
Claim · model-written summary
Maize mosaic and stunt is transmissible by the corn planthopper Peregrinus maidis.
- Interactor
- maize (corn) mosaic virus
Zea mays subsp. mayst0pathogen - Second interactor
- Peregrinus maidis
Peregrinus maidise1pest - Outcome
- transmissiblee1
- Qualifier
- by the corn planthoppere1
Zea maysOrganisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Investigation on maize (corn) mosaic virus (mosaico rayado del maiz) and its spread in cuba”
e1“Maize mosaic and stunt, occurring to a considerable degree under Cuban field conditions, was determined as a virus disease, transmissible by the corn planthopperPeregrinus maidis Ashm”
Claim · model-written summary
Rhopalosiphum maidis did not transmit the maize mosaic virus.
- Treatment
- Rhopalosiphum maidis Fitche2
- Interactor
- maize (corn) mosaic virusZea mays subsp. mayst0pathogen
- Second interactor
- Rhopalosiphum maidis
Rhopalosiphum maidise2pest - Outcome
- transmissione2
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Investigation on maize (corn) mosaic virus (mosaico rayado del maiz) and its spread in cuba”
e2“Negative results were obtained in the experiments in which aphidsRhopalosiphum maidis Fitch, served as vectors or when transmission was realized mechanically using the sap of infected plants”
Claim · model-written summary
Mechanical transmission with the sap of infected maize plants did not transmit the maize mosaic virus.
- Treatment
- the sap of infected plantse2
- Interactor
- maize (corn) mosaic virusZea mays subsp. mayst0pathogen
- Outcome
- transmissione2
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Investigation on maize (corn) mosaic virus (mosaico rayado del maiz) and its spread in cuba”
e2“Negative results were obtained in the experiments in which aphidsRhopalosiphum maidis Fitch, served as vectors or when transmission was realized mechanically using the sap of infected plants”