Abstract
Investigations concerning the diseases of peanut (A. hypogea L. var. Spanish) caused by Rhizoctonia solani Kühn and Sclerotium rolfsii Sacc. were carried out to determine: 1. The relative pathological importance of these fungi; 2. The interrelationship of inoculum potential and other soil microflora with disease development; and 3. The influence of soil fumigants on disease development and on the total population of soil microflora. Infection due to R. solani was more prevalent in Spanish peanuts from the field experiment than that caused by S. rolfsii. Examination of harvested pods, likewise, revealed that greater damage to the fruits was caused by R. solani. Fumigation of soil with chloropicrin and DBCP (1,2-dibromo-3-chloropropane) reduced the infection of peanut plants as well as the pod infection. Chloropicrin was found to be more effective in reducing disease development than DBCP. Although fumigation of soil with chloropicrin and DBCP resulted in disease reduction in peanuts, no significant increase in gross yield of pods was observed. The low disease development in peanuts was found to correspond with the low inoculum potential of the two fungi as determined by periodic assays of nonfumigated and fumigated soils. Assays of the soils collected from the experimental plots indicated that chloropicrin reduced fungal population more effectively than DBCP. Populations of actinomycetes were greatly increased in the soils fumigated with chloropicrin. Populations of these two groups of microorganisms in the DBCP treated soils were slightly decreased. ...
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Claims 3
Claim · model-written summary
R. solani infection was more prevalent than S. rolfsii infection in field-grown Spanish peanuts.
- Taxon
- Spanish peanuts
.jpg?width=60)
Arachis hypogaea var. vulgarise0 - Interactor
- R. solani
Rhizoctonia solanie0pathogen - Second interactor
- S. rolfsii
Agroathelia rolfsiie0pathogen - Outcome
- Infectione0
- Direction
- more prevalente0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
.jpg?width=500)
Verbatim
e0“Infection due to R. solani was more prevalent in Spanish peanuts from the field experiment than that caused by S. rolfsii.”
Claim · model-written summary
Chloropicrin and DBCP fumigation reduced peanut plant and pod infection.
- Taxon
- peanut
Arachis hypogaeae0 - Treatment
- chloropicrin and DBCPe0
- Outcome
- infection of peanut plants as well as the pod infectione0
- Direction
- reducede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Fumigation of soil with chloropicrin and DBCP (1,2-dibromo-3-chloropropane) reduced the infection of peanut plants as well as the pod infection.”
Claim · model-written summary
Fumigation did not significantly increase gross pod yield.
- Taxon
- peanutsArachis hypogaeae0
- Treatment
- fumigation of soil with chloropicrin and DBCPe0
- Outcome
- gross yield of podse0
- Direction
- no significant increasee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Although fumigation of soil with chloropicrin and DBCP resulted in disease reduction in peanuts, no significant increase in gross yield of pods was observed.”
The same questions in other papers
1,2-Dibromo-3-chloropropane · yield · Arachis hypogaea (peanut)Results differ
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- positive
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See all 5 papers →chloropicrin · yield · Arachis hypogaea (peanut)Positive and negative results
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solarization · yield · Arachis hypogaea (peanut)Positive and negative results
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See all 10 papers →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.