Abstract
Fusarium oxysporum f. sp. gladioli (Massey) Snyd. & Hans is the cause of corm rot disease of gladiolus. The present study was carried out to investigate the effect of eight preceding crops, viz. Allium cepa L., Brassica campestris L., Capsicum annuum L., Eruca sativa Mill., Helianthus annuus L., Tagetes erectus L., Triticum aestivum L. and Zea mays L., on corm rot disease, growth and mycorrhizal colonization of gladiolus (Gladiolus grandiflorus sect. Blandus) cv. Aarti under biotic stress of F. oxysporum f. sp. gladioli. These crops were sown in pots, harvested after 75 d and the soil was inoculated with F. oxysporum inoculum at 4 g 400 g-1 soil using chickpea (Cicer arietinum) seeds as inoculum carrying material. Gladiolus was subsequently cultivated in these pots. Data regarding the various growth parameters and arbuscular mycorrhizal (AM) colonization of gladiolus were recorded after 120 d. Disease incidence was significantly suppressed in all the preceding crop treatments (29–53%) compared with 70% in the positive control (Fusarium inoculation without any preceding crop). In general, root biomass was enhanced while shoot biomass was suppressed due to various preceding crops under Fusarium stress. Mycorrhizal colonization was significantly suppressed due to F. oxysporum inoculation. However, percentage mycorrhizal colonization was significantly enhanced under biotic stress of F. oxysporum when gladiolus was cultivated in the same pot soil after harvest of the preceding test crops. Maximum stimulatory effect was observed in the treatment where either Z. mays or A. sepa was cultivated as preceding crop.
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Claims 7
Claim · model-written summary
All preceding crops suppressed gladiolus corm rot incidence to 29–53%, versus 70% in the inoculated control.
- Treatment
- preceding crop treatmentse0
- Outcome
- Disease incidencee0
- Direction
- suppressede0
- Value
- 29–53%e0
- Qualifier
- 70%e0
- Comparator
- positive controle0
Gladiolus
FusariumOrganisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Disease incidence was significantly suppressed in all the preceding crop treatments (29–53%) compared with 70% in the positive control (Fusarium inoculation without any preceding crop).”
t0“Gladiolus (Gladiolus grandiflorus”
Claim · model-written summary
Preceding crops enhanced gladiolus root biomass under Fusarium stress.
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“root biomass was enhanced while shoot biomass was suppressed due to various preceding crops under Fusarium stress”
t0“Gladiolus (Gladiolus grandiflorus”
Claim · model-written summary
Preceding crops suppressed gladiolus shoot biomass under Fusarium stress.
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“root biomass was enhanced while shoot biomass was suppressed due to various preceding crops under Fusarium stress”
t0“Gladiolus (Gladiolus grandiflorus”
Claim · model-written summary
Fusarium inoculation significantly suppressed gladiolus mycorrhizal colonization.
- Treatment
- F. oxysporum inoculatione0
- Interactor
- F. oxysporum
_(Fusarium_oxysporum_f.sp._batatas)_1234227-PPT-Clemson_University.jpg?width=60)
Fusarium oxysporume0pathogen - Outcome
- Mycorrhizal colonizatione0
- Direction
- suppressede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
_(Fusarium_oxysporum_f.sp._batatas)_1234227-PPT-Clemson_University.jpg?width=500)
Verbatim
e0“Mycorrhizal colonization was significantly suppressed due to F. oxysporum inoculation.”
t0“Gladiolus (Gladiolus grandiflorus”
Claim · model-written summary
Preceding crops significantly enhanced gladiolus mycorrhizal colonization under Fusarium stress.
- Treatment
- preceding test cropse0
- Interactor
- F. oxysporumFusarium oxysporume0pathogen
- Outcome
- percentage mycorrhizal colonizatione0
- Direction
- enhancede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“percentage mycorrhizal colonization was significantly enhanced under biotic stress of F. oxysporum when gladiolus was cultivated in the same pot soil after harvest of the preceding test crops.”
Claim · model-written summary
Z. mays produced a maximum stimulatory effect as preceding crop.
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Maximum stimulatory effect was observed in the treatment where either Z. mays or A. sepa was cultivated as preceding crop.”
t0“Gladiolus (Gladiolus grandiflorus”
Claim · model-written summary
A. sepa produced a maximum stimulatory effect as preceding crop.
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Maximum stimulatory effect was observed in the treatment where either Z. mays or A. sepa was cultivated as preceding crop.”
t0“Gladiolus (Gladiolus grandiflorus”
The same questions in other papers
inoculation · disease · GladiolusResults agree
2 papers in the same direction as this paper
- negative
- negative
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.