Abstract
A corm dressing containing Trichoderma harzianum (T014) and Pseudomonas fluorescens (PS07) cultured on a bagasse-soil-molasses mixture was tested for its efficacy against corm rot and yellows caused by Fusarium oxysporum f. sp. gladioli on the gladiolus (Gladiolus psittacinus L.) cv. White Prosperity (WP), King Lear (KL), Friendship (FR), Her Majesty (HM) and American Beauty (AB) in a pot culture experiment. The effectiveness of the biocontrol agents was compared with that of the fungicide carbendazim (200 ppm). All cultivars were susceptible to the pathogenic fungus and developed the characteristic symptoms of corm rot and yellows. Cultivars HM and AB were highly susceptible, scoring 2.9–3.2 on a corm rot and yellows scale (0–5 scale; compared with 1.5–2.9 for the other cultivars). Fungal infection reduced plant growth and flowering significantly, with a 15–28% decrease in the number of florets/spike. Application of carbendazim, T. harzianum (P=0.001) and P. fluorescens (P=0.05) decreased the corm rot and yellows scores and the soil population of the pathogen, and increased plant growth and flowering. The greatest improvement in the flower variables of infected plants was recorded with P. fluorescens (+18–31% over control). The soil population of the bioagents increased significantly over time, both in the presence and in the absence of the pathogenic fungus, but more in its absence.
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Claims 9
Claim · model-written summary
All gladiolus cultivars developed Fusarium corm rot and yellows.
- Interactor
- Fusarium oxysporum f. sp. gladioli
Fusarium oxysporum f. sp. gladiolie2pathogen - Outcome
- corm rot and yellowse0
GladiolusOrganisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“All cultivars were susceptible to the pathogenic fungus and developed the characteristic symptoms of corm rot and yellows”
e1“gladiolus (Gladiolus psittacinus L.)”
e2“Fusarium oxysporum f. sp. gladioli”
Claim · model-written summary
Her Majesty and American Beauty had the highest disease scores.
- Material
- HM and ABe0
- Interactor
- Fusarium oxysporum f. sp. gladioliFusarium oxysporum f. sp. gladiolie2pathogen
- Outcome
- corm rot and yellows scalee0
- Value
- 2.9–3.2e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Cultivars HM and AB were highly susceptible, scoring 2.9–3.2 on a corm rot and yellows scale”
e1“gladiolus (Gladiolus psittacinus L.)”
e2“Fusarium oxysporum f. sp. gladioli”
Claim · model-written summary
Fungal infection significantly reduced gladiolus growth and flowering.
- Treatment
- Fungal infectione0
- Interactor
- Fusarium oxysporum f. sp. gladioliFusarium oxysporum f. sp. gladiolie2pathogen
- Outcome
- plant growth and floweringe0
- Direction
- reducede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Fungal infection reduced plant growth and flowering significantly”
e1“gladiolus (Gladiolus psittacinus L.)”
e2“Fusarium oxysporum f. sp. gladioli”
Claim · model-written summary
Infection reduced florets per spike by 15–28%.
- Treatment
- Fungal infectione1
- Interactor
- Fusarium oxysporum f. sp. gladioliFusarium oxysporum f. sp. gladiolie3pathogen
- Outcome
- number of florets/spikee0
- Direction
- decreasee0
- Value
- 15–28%e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“with a 15–28% decrease in the number of florets/spike”
e1“Fungal infection reduced plant growth and flowering significantly”
e2“gladiolus (Gladiolus psittacinus L.)”
e3“Fusarium oxysporum f. sp. gladioli”
Claim · model-written summary
Carbendazim lowered disease scores and pathogen soil population and increased growth and flowering.
- Treatment
- carbendazime0
- Interactor
- Fusarium oxysporum f. sp. gladioliFusarium oxysporum f. sp. gladiolie2pathogen
- Outcome
- corm rot and yellows scores and the soil population of the pathogene0
- Direction
- decreasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Application of carbendazim, T. harzianum (P=0.001) and P. fluorescens (P=0.05) decreased the corm rot and yellows scores and the soil population of the pathogen, and increased plant growth and flowering”
e1“gladiolus (Gladiolus psittacinus L.)”
e2“Fusarium oxysporum f. sp. gladioli”
Claim · model-written summary
T. harzianum lowered disease and pathogen population and increased plant growth and flowering.
- Treatment
- T. harzianume0
- Interactor
- Fusarium oxysporum f. sp. gladioliFusarium oxysporum f. sp. gladiolie2pathogen
- Second interactor
- T. harzianum
Trichoderma harzianume0biocontrol_agent - Outcome
- corm rot and yellows scores and the soil population of the pathogene0
- Direction
- decreasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“T. harzianum (P=0.001) and P. fluorescens (P=0.05) decreased the corm rot and yellows scores and the soil population of the pathogen, and increased plant growth and flowering”
e1“gladiolus (Gladiolus psittacinus L.)”
e2“Fusarium oxysporum f. sp. gladioli”
Claim · model-written summary
P. fluorescens lowered disease and pathogen population and increased plant growth and flowering.
- Treatment
- P. fluorescense0
- Interactor
- Fusarium oxysporum f. sp. gladioliFusarium oxysporum f. sp. gladiolie2pathogen
- Second interactor
- P. fluorescens
.JPG?width=60)
Pseudomonas fluorescense0biocontrol_agent - Outcome
- corm rot and yellows scores and the soil population of the pathogene0
- Direction
- decreasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
.JPG?width=500)
Verbatim
e0“P. fluorescens (P=0.05) decreased the corm rot and yellows scores and the soil population of the pathogen, and increased plant growth and flowering”
e1“gladiolus (Gladiolus psittacinus L.)”
e2“Fusarium oxysporum f. sp. gladioli”
Claim · model-written summary
P. fluorescens improved infected-plant flower variables by 18–31% over control.
- Treatment
- P. fluorescense0
- Interactor
- Fusarium oxysporum f. sp. gladioliFusarium oxysporum f. sp. gladiolie2pathogen
- Second interactor
- P. fluorescensPseudomonas fluorescense0biocontrol_agent
- Outcome
- flower variables of infected plantse0
- Direction
- improvemente0
- Value
- +18–31%e0
- Comparator
- controle0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The greatest improvement in the flower variables of infected plants was recorded with P. fluorescens (+18–31% over control)”
e1“gladiolus (Gladiolus psittacinus L.)”
e2“Fusarium oxysporum f. sp. gladioli”
Claim · model-written summary
Biocontrol-agent soil populations increased over time, more without the pathogen.
- Interactor
- Trichoderma harzianum (T014) and Pseudomonas fluorescens (PS07)Pseudomonas fluorescensTrichoderma harzianume2biocontrol_agent
- Second interactor
- Fusarium oxysporum f. sp. gladioliFusarium oxysporum f. sp. gladiolie3pathogen
- Outcome
- soil population of the bioagentse0
- Direction
- increasede0
- Qualifier
- more in its absencee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The soil population of the bioagents increased significantly over time, both in the presence and in the absence of the pathogenic fungus, but more in its absence”
e1“gladiolus (Gladiolus psittacinus L.)”
e2“Trichoderma harzianum (T014) and Pseudomonas fluorescens (PS07)”
e3“Fusarium oxysporum f. sp. gladioli”
The same questions in other papers
Trichoderma harzianum · Fusarium oxysporum f. sp. gladioli · GladiolusResults agree
3 papers in the same direction as this paper
- positive
- positive
- positive
carbendazim · Fusarium oxysporum f. sp. gladioli · GladiolusResults agree
4 papers in the same direction as this paper
- positive
- positive
- positive
1 paper more in this group
See all 5 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.