Abstract
Reniform nematode (Rotylenchulus reniformis) causes significant yield loss in cotton worldwide. In 2012, its detection in the Dawson-Callide region of Central Queensland prompted extensive surveys of cotton fields. The nematode was confirmed in 68% of sampled fields, with populations ranging from 2 to 3870 R. reniformis/200 mL of soil. Soil monitoring revealed increasing populations associated with consecutive cotton crops. However, when corn or sorghum replaced cotton, soil nematode populations significantly decreased. A two-year replicated field trial demonstrated that growing a non-host crop (such as biofumigant sorghum ‘Fumig8tor’, grain sorghum, or corn) significantly reduced nematode populations in the top 15 cm of soil compared to cotton. Unfortunately, when cotton was replanted the following season, nematode populations rebounded regardless of the previous crop. Only the ‘Fumig8tor’-cotton rotation resulted in significantly lower nematode populations than continuous cotton. Vertical soil sampling showed that rotating with a non-host crop significantly reduced nematode densities to a depth of 100 cm compared to cotton. However, when the field was replanted with cotton, nematode populations recovered, unaffected by cropping or soil depth. This study emphasises the importance of monitoring reniform nematodes in cotton soils for early detection and defining distribution patterns within a field, which may improve the effectiveness of management practices. These results suggest that one rotation out of cotton is not sufficient, as populations return to high levels when cotton is grown again. Therefore, two or more rotations out of cotton should be considered to manage this nematode.
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Claims 9
Claim · model-written summary
Reniform nematode occurred in 68% of sampled cotton fields.
- Taxon
- Cotton
Gossypium hirsutumt0 - Interactor
- Rotylenchulus reniformis
Rotylenchulus reniformist0pathogen - Outcome
- nematode was confirmede0
- Value
- 68%e0
- Setting
- Central Queenslandt0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The nematode was confirmed in 68% of sampled fields, with populations ranging from 2 to 3870 R. reniformis/200 mL of soil”
t0“Reniform Nematode (Rotylenchulus reniformis) in Cotton Fields in Central Queensland”
Claim · model-written summary
Sampled cotton fields had 2 to 3870 reniform nematodes per 200 mL soil.
- Taxon
- CottonGossypium hirsutumt0
- Interactor
- Rotylenchulus reniformisRotylenchulus reniformist0pathogen
- Outcome
- R. reniformis/200 mL of soile0
- Value
- 2 to 3870 R. reniformis/200 mL of soile0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“populations ranging from 2 to 3870 R. reniformis/200 mL of soil”
t0“Reniform Nematode (Rotylenchulus reniformis) in Cotton Fields”
Claim · model-written summary
Consecutive cotton crops were associated with increasing soil nematode populations.
- Taxon
- CottonGossypium hirsutumt0
- Treatment
- consecutive cotton cropse0
- Interactor
- Rotylenchulus reniformisRotylenchulus reniformist0pathogen
- Outcome
- populationse0
- Direction
- increasinge0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“increasing populations associated with consecutive cotton crops”
t0“Reniform Nematode (Rotylenchulus reniformis) in Cotton Fields”
Claim · model-written summary
Corn or sorghum replacing cotton significantly decreased soil nematode populations.
- Taxon
- CottonGossypium hirsutumt0
- Treatment
- corn or sorghum replaced cottone0
- Interactor
- Rotylenchulus reniformisRotylenchulus reniformist0pathogen
- Outcome
- soil nematode populationse0
- Direction
- decreasede0
- Comparator
- cottone0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“when corn or sorghum replaced cotton, soil nematode populations significantly decreased”
t0“Reniform Nematode (Rotylenchulus reniformis) in Cotton Fields”
Claim · model-written summary
Non-host crops reduced nematode populations in the top 15 cm relative to cotton.
- Taxon
- CottonGossypium hirsutumt0
- Treatment
- non-host crope0
- Interactor
- Rotylenchulus reniformisRotylenchulus reniformist0pathogen
- Outcome
- nematode populationse0
- Direction
- reducede0
- Qualifier
- top 15 cm of soile0
- Comparator
- cottone0
Not reportedOrgan / stage
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“growing a non-host crop (such as biofumigant sorghum ‘Fumig8tor’, grain sorghum, or corn) significantly reduced nematode populations in the top 15 cm of soil compared to cotton”
t0“Reniform Nematode (Rotylenchulus reniformis) in Cotton Fields”
Claim · model-written summary
Nematode populations rebounded after cotton was replanted.
- Taxon
- cottonGossypium hirsutume0
- Interactor
- Rotylenchulus reniformisRotylenchulus reniformist0pathogen
- Outcome
- nematode populations reboundede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“when cotton was replanted the following season, nematode populations rebounded regardless of the previous crop”
t0“Rotylenchulus reniformis”
Claim · model-written summary
The Fumig8tor-cotton rotation had lower nematode populations than continuous cotton.
- Taxon
- cottonGossypium hirsutume0
- Treatment
- ‘Fumig8tor’-cotton rotatione0
- Interactor
- Rotylenchulus reniformisRotylenchulus reniformist0pathogen
- Outcome
- nematode populationse0
- Direction
- lowere0
- Comparator
- continuous cottone0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Only the ‘Fumig8tor’-cotton rotation resulted in significantly lower nematode populations than continuous cotton”
t0“Rotylenchulus reniformis”
Claim · model-written summary
Non-host rotation reduced nematode density to 100 cm depth relative to cotton.
- Taxon
- cottonGossypium hirsutume0
- Treatment
- non-host crope0
- Interactor
- Rotylenchulus reniformisRotylenchulus reniformist0pathogen
- Outcome
- nematode densitiese0
- Direction
- reducede0
- Qualifier
- to a depth of 100 cme0
- Comparator
- cottone0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“rotating with a non-host crop significantly reduced nematode densities to a depth of 100 cm compared to cotton”
t0“Rotylenchulus reniformis”
Claim · model-written summary
Two or more rotations out of cotton should be considered for nematode management.
- Taxon
- cottonGossypium hirsutume0
- Interactor
- Rotylenchulus reniformisRotylenchulus reniformist0pathogen
- Outcome
- two or more rotations out of cottone0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“two or more rotations out of cotton should be considered to manage this nematode”
t0“Rotylenchulus reniformis”
The same questions in other papers
Zea mays subsp. mays · Rotylenchulus reniformis · Gossypium hirsutum (cotton)Results agree
1 paper in the same direction as this paper
- positive
rotation · Rotylenchulus reniformis · Gossypium hirsutum (cotton)Results agree
1 paper in the same direction as this paper
- positive
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.