Abstract
This study aimed to examine the biofumigation effect of cabbage, broccoli and cauliflower against Sclerotinia sclerotiorum (Lib.), the pivotal agent of white rot in eggplant under in vitro conditions. Also, field experiments were carried out to assess the effects of brassicas on the disease severity index of white rot in eggplant and plant growth parameters in two successive seasons using a hybrid eggplant Darko F1 cultivar. Autolysis products of leaves and roots of the three brassicas plants were analyzed by gas-liquid chromatography-mass spectrometry (GC-MS). The results confirmed that the tested biofumigation plants led to a significant decrease in the mycelialgrowth and number of sclerotia formation of S. sclerotiorum under laboratory conditions. Cabbage meal was the most effective treatment, resulting in the most reduction in mycelial growth and sclerotia formation. Under field conditions, the incorporation of cabbage, broccoli and cauliflower plants into soil decreased the DSI of white rot during both seasons. This led to a significant increase in plant growth parameters, total fruit yield per plant and total fruit yield per feddan compared to control. Eight glucosinolates were identified by the natural autolysis of leaves and roots of cabbage, broccoli and cauliflower. The autolysis products as isothiocyanates, nitriles and epithioalkane nitriles were analyzed using GC–MS and referred to sinigrin, glucoiberverin, gluconapin, glucoerucin, gluconasturtiin, glucoiberin, glucoraphanin and glucobrassicin glucosinolates. The highest percentage of autolysis products was detected in cabbage roots. Other sulfur compounds and volatile oils with biofumigant activity were also detected in the three investigated plants.
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Claims 9
Claim · model-written summary
Biofumigation plants significantly decreased Sclerotinia mycelial growth and sclerotia formation.
- Treatment
- tested biofumigation plantse0
- Interactor
- S. sclerotiorum
Sclerotinia sclerotiorume0pathogen - Outcome
- mycelialgrowth and number of sclerotia formation of S. sclerotiorume0
- Direction
- decreasee0
- Setting
- laboratory conditionse0
Not reportedTaxonComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“tested biofumigation plants led to a significant decrease in the mycelialgrowth and number of sclerotia formation of S. sclerotiorum under laboratory conditions.”
Claim · model-written summary
Cabbage meal gave the greatest reduction in mycelial growth and sclerotia formation.
Not reportedTaxonComparator
Verbatim
e0“Cabbage meal was the most effective treatment, resulting in the most reduction in mycelial growth and sclerotia formation.”
Claim · model-written summary
Cabbage incorporation reduced white rot severity.
Not reportedTaxonComparator
Verbatim
e0“the incorporation of cabbage, broccoli and cauliflower plants into soil decreased the DSI of white rot during both seasons.”
Claim · model-written summary
Broccoli incorporation reduced white rot severity.
Not reportedTaxonComparator
Verbatim
e0“the incorporation of cabbage, broccoli and cauliflower plants into soil decreased the DSI of white rot during both seasons.”
Claim · model-written summary
Cauliflower incorporation reduced white rot severity.
Not reportedTaxonComparator
Verbatim
e0“the incorporation of cabbage, broccoli and cauliflower plants into soil decreased the DSI of white rot during both seasons.”
Claim · model-written summary
Brassica treatments significantly increased plant growth and fruit yields.
- Outcome
- plant growth parameters, total fruit yield per plant and total fruit yield per feddane0
- Direction
- increasee0
- Comparator
- controle0
Not reportedTaxonTreatment
Verbatim
e0“This led to a significant increase in plant growth parameters, total fruit yield per plant and total fruit yield per feddan compared to control.”
Claim · model-written summary
Eight glucosinolates were identified in autolysed brassica leaves and roots.
- Taxon
- cabbage
Brassica oleracea var. capitatae0 - Outcome
- glucosinolatese0
- Value
- Eighte0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Eight glucosinolates were identified by the natural autolysis of leaves and roots of cabbage, broccoli and cauliflower.”
Claim · model-written summary
Autolysis products were highest in cabbage roots.
- Taxon
- cabbageBrassica oleracea var. capitatae0
- Outcome
- percentage of autolysis productse0
- Direction
- higheste0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The highest percentage of autolysis products was detected in cabbage roots.”
Claim · model-written summary
Sulfur compounds and volatile oils with biofumigant activity were detected in all three brassicas.
- Outcome
- sulfur compounds and volatile oils with biofumigant activitye0
Not reportedTaxon
Verbatim
e0“Other sulfur compounds and volatile oils with biofumigant activity were also detected in the three investigated plants.”
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