Abstract
Host nutritional variables were evaluated for their effects on the severity of crown and root rot of tomato caused by Fusarium oxysporum f.sp. radicis-lycopersici . Tomato ( Lycopersicon esculentum Mill.) seedlings (cv. Bonnie Best) were grown in a pathogen-infested, soilless rockwool system in the greenhouse and were fertilized with a nutrient solution that was amended with macro- and microelements at various rates. Disease was evaluated after 2 weeks using an index of 0 to 4, and plant fresh weight was measured. Regression analysis indicated that disease severity was significantly increased by ammonium-nitrogen [NH 4 Cl, (NH 4 ) 6 Mo 7 O 24 , and (NH 4 ) 2 SO 4 ], NaH 2 PO 4 ·H 2 O, Fe-EDDHA, MnSO 4 , MoO 3 , and ZnSO 4 ·7H 2 O. Disease severity was reduced by nitrate-nitrogen [Ca(NO 3 ) 2 ·4H 2 O] and CuSO 4 ·H 2 O. Low rates of NH 4 NO 3 (39 to 79 mg·L -1 N) reduced disease, but rates above 100 mg·L -1 N increased it. Disease was not affected by MgSO 4 ·7H 2 O. In all cases, plant growth was inversely related to disease severity. Mineral fertilizers had no effect on nutrient solution pH. This information sheds new light on environmental factors that influence plant-pathogen interactions, and may be applied to develop a management strategy for Fusarium crown and root rot based on host nutrition.
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Claims 13
Claim · model-written summary
Ammonium-nitrogen significantly increased Fusarium crown and root rot severity in tomato.
- Taxon
- tomato
Solanum lycopersicume0 - Treatment
- ammonium-nitrogene2
- Interactor
- Fusarium oxysporum f.sp. radicis-lycopersici
Fusarium oxysporum f. sp. radicis-lycopersicie0pathogen - Outcome
- disease severitye2
- Direction
- increasede2
- Setting
- greenhousee1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Host nutritional variables were evaluated for their effects on the severity of crown and root rot of tomato caused by Fusarium oxysporum f.sp. radicis-lycopersici”
e1“grown in a pathogen-infested, soilless rockwool system in the greenhouse”
e2“Regression analysis indicated that disease severity was significantly increased by ammonium-nitrogen”
Claim · model-written summary
NaH 2 PO 4 ·H 2 O significantly increased Fusarium crown and root rot severity in tomato.
- Taxon
- tomatoSolanum lycopersicume0
- Treatment
- NaH 2 PO 4 ·H 2 Oe2
- Interactor
- Fusarium oxysporum f.sp. radicis-lycopersiciFusarium oxysporum f. sp. radicis-lycopersicie0pathogen
- Outcome
- disease severitye2
- Direction
- increasede2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Host nutritional variables were evaluated for their effects on the severity of crown and root rot of tomato caused by Fusarium oxysporum f.sp. radicis-lycopersici”
e2“Regression analysis indicated that disease severity was significantly increased by ammonium-nitrogen [NH 4 Cl, (NH 4 ) 6 Mo 7 O 24 , and (NH 4 ) 2 SO 4 ], NaH 2 PO 4 ·H 2 O, Fe-EDDHA, MnSO 4 , MoO 3 , and ZnSO 4 ·7H 2 O”
Claim · model-written summary
Fe-EDDHA significantly increased Fusarium crown and root rot severity in tomato.
- Taxon
- tomatoSolanum lycopersicume0
- Treatment
- Fe-EDDHAe2
- Interactor
- Fusarium oxysporum f.sp. radicis-lycopersiciFusarium oxysporum f. sp. radicis-lycopersicie0pathogen
- Outcome
- disease severitye2
- Direction
- increasede2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Host nutritional variables were evaluated for their effects on the severity of crown and root rot of tomato caused by Fusarium oxysporum f.sp. radicis-lycopersici”
e2“Regression analysis indicated that disease severity was significantly increased by ammonium-nitrogen [NH 4 Cl, (NH 4 ) 6 Mo 7 O 24 , and (NH 4 ) 2 SO 4 ], NaH 2 PO 4 ·H 2 O, Fe-EDDHA, MnSO 4 , MoO 3 , and ZnSO 4 ·7H 2 O”
Claim · model-written summary
MnSO 4 significantly increased Fusarium crown and root rot severity in tomato.
- Taxon
- tomatoSolanum lycopersicume0
- Treatment
- MnSO 4e2
- Interactor
- Fusarium oxysporum f.sp. radicis-lycopersiciFusarium oxysporum f. sp. radicis-lycopersicie0pathogen
- Outcome
- disease severitye2
- Direction
- increasede2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Host nutritional variables were evaluated for their effects on the severity of crown and root rot of tomato caused by Fusarium oxysporum f.sp. radicis-lycopersici”
e2“Regression analysis indicated that disease severity was significantly increased by ammonium-nitrogen [NH 4 Cl, (NH 4 ) 6 Mo 7 O 24 , and (NH 4 ) 2 SO 4 ], NaH 2 PO 4 ·H 2 O, Fe-EDDHA, MnSO 4 , MoO 3 , and ZnSO 4 ·7H 2 O”
Claim · model-written summary
MoO 3 significantly increased Fusarium crown and root rot severity in tomato.
- Taxon
- tomatoSolanum lycopersicume0
- Treatment
- MoO 3e2
- Interactor
- Fusarium oxysporum f.sp. radicis-lycopersiciFusarium oxysporum f. sp. radicis-lycopersicie0pathogen
- Outcome
- disease severitye2
- Direction
- increasede2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Host nutritional variables were evaluated for their effects on the severity of crown and root rot of tomato caused by Fusarium oxysporum f.sp. radicis-lycopersici”
e2“Regression analysis indicated that disease severity was significantly increased by ammonium-nitrogen [NH 4 Cl, (NH 4 ) 6 Mo 7 O 24 , and (NH 4 ) 2 SO 4 ], NaH 2 PO 4 ·H 2 O, Fe-EDDHA, MnSO 4 , MoO 3 , and ZnSO 4 ·7H 2 O”
Claim · model-written summary
ZnSO 4 ·7H 2 O significantly increased Fusarium crown and root rot severity in tomato.
- Taxon
- tomatoSolanum lycopersicume0
- Treatment
- ZnSO 4 ·7H 2 Oe2
- Interactor
- Fusarium oxysporum f.sp. radicis-lycopersiciFusarium oxysporum f. sp. radicis-lycopersicie0pathogen
- Outcome
- disease severitye2
- Direction
- increasede2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Host nutritional variables were evaluated for their effects on the severity of crown and root rot of tomato caused by Fusarium oxysporum f.sp. radicis-lycopersici”
e2“Regression analysis indicated that disease severity was significantly increased by ammonium-nitrogen [NH 4 Cl, (NH 4 ) 6 Mo 7 O 24 , and (NH 4 ) 2 SO 4 ], NaH 2 PO 4 ·H 2 O, Fe-EDDHA, MnSO 4 , MoO 3 , and ZnSO 4 ·7H 2 O”
Claim · model-written summary
Nitrate-nitrogen reduced Fusarium crown and root rot severity in tomato.
- Taxon
- tomatoSolanum lycopersicume0
- Treatment
- nitrate-nitrogene3
- Interactor
- Fusarium oxysporum f.sp. radicis-lycopersiciFusarium oxysporum f. sp. radicis-lycopersicie0pathogen
- Outcome
- Disease severitye3
- Direction
- reducede3
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Host nutritional variables were evaluated for their effects on the severity of crown and root rot of tomato caused by Fusarium oxysporum f.sp. radicis-lycopersici”
e3“Disease severity was reduced by nitrate-nitrogen [Ca(NO 3 ) 2 ·4H 2 O] and CuSO 4 ·H 2 O”
Claim · model-written summary
CuSO 4 ·H 2 O reduced Fusarium crown and root rot severity in tomato.
- Taxon
- tomatoSolanum lycopersicume0
- Treatment
- CuSO 4 ·H 2 Oe3
- Interactor
- Fusarium oxysporum f.sp. radicis-lycopersiciFusarium oxysporum f. sp. radicis-lycopersicie0pathogen
- Outcome
- Disease severitye3
- Direction
- reducede3
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Host nutritional variables were evaluated for their effects on the severity of crown and root rot of tomato caused by Fusarium oxysporum f.sp. radicis-lycopersici”
e3“Disease severity was reduced by nitrate-nitrogen [Ca(NO 3 ) 2 ·4H 2 O] and CuSO 4 ·H 2 O”
Claim · model-written summary
Low rates of NH 4 NO 3 (39 to 79 mg·L -1 N) reduced Fusarium crown and root rot in tomato.
- Taxon
- tomatoSolanum lycopersicume0
- Treatment
- Low rates of NH 4 NO 3 (39 to 79 mg·L -1 N)e4
- Interactor
- Fusarium oxysporum f.sp. radicis-lycopersiciFusarium oxysporum f. sp. radicis-lycopersicie0pathogen
- Outcome
- diseasee4
- Direction
- reducede4
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Host nutritional variables were evaluated for their effects on the severity of crown and root rot of tomato caused by Fusarium oxysporum f.sp. radicis-lycopersici”
e4“Low rates of NH 4 NO 3 (39 to 79 mg·L -1 N) reduced disease, but rates above 100 mg·L -1 N increased it”
Claim · model-written summary
NH 4 NO 3 rates above 100 mg·L -1 N increased Fusarium crown and root rot in tomato.
- Taxon
- tomatoSolanum lycopersicume0
- Treatment
- rates above 100 mg·L -1 Ne4
- Interactor
- Fusarium oxysporum f.sp. radicis-lycopersiciFusarium oxysporum f. sp. radicis-lycopersicie0pathogen
- Outcome
- diseasee4
- Direction
- increasede4
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Host nutritional variables were evaluated for their effects on the severity of crown and root rot of tomato caused by Fusarium oxysporum f.sp. radicis-lycopersici”
e4“Low rates of NH 4 NO 3 (39 to 79 mg·L -1 N) reduced disease, but rates above 100 mg·L -1 N increased it”
Claim · model-written summary
Disease was not affected by MgSO 4 ·7H 2 O in tomato.
- Taxon
- tomatoSolanum lycopersicume0
- Treatment
- MgSO 4 ·7H 2 Oe5
- Interactor
- Fusarium oxysporum f.sp. radicis-lycopersiciFusarium oxysporum f. sp. radicis-lycopersicie0pathogen
- Outcome
- Diseasee5
- Direction
- not affectede5
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Host nutritional variables were evaluated for their effects on the severity of crown and root rot of tomato caused by Fusarium oxysporum f.sp. radicis-lycopersici”
e5“Disease was not affected by MgSO 4 ·7H 2 O”
Claim · model-written summary
Plant growth of tomato was lower where Fusarium crown and root rot severity was higher.
- Taxon
- tomatoSolanum lycopersicume0
- Interactor
- Fusarium oxysporum f.sp. radicis-lycopersiciFusarium oxysporum f. sp. radicis-lycopersicie0pathogen
- Outcome
- plant growthe6
- Direction
- lowerinferrede6
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Host nutritional variables were evaluated for their effects on the severity of crown and root rot of tomato caused by Fusarium oxysporum f.sp. radicis-lycopersici”
e6“In all cases, plant growth was inversely related to disease severity”
Claim · model-written summary
Mineral fertilizers had no effect on the pH of the tomato nutrient solution.
- Taxon
- tomatoSolanum lycopersicume0
- Treatment
- Mineral fertilizerse7
- Outcome
- nutrient solution pHe7
- Direction
- no effecte7
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Host nutritional variables were evaluated for their effects on the severity of crown and root rot of tomato caused by Fusarium oxysporum f.sp. radicis-lycopersici”
e7“Mineral fertilizers had no effect on nutrient solution pH”
The same questions in other papers
fertilization · nutrient: content · Solanum lycopersicum (tomato)Positive and negative results
44 papers in the same direction as this paper · 226 in the opposite direction
- positive
- positive
- positive
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See all 271 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.