Abstract
Abstract During the years 1998 and 1999, two field experiments were conducted at the University of Wales, Aberystwyth, UK, to test the effects of soil‐ and foliar‐applied sulphur (S) in spring wheat. S was applied at 0, 20, 40, 60 kg ha −1 in 1998 and at 60 kg ha −1 in 1999, using CaSO 4 as a source for the soil application and micronised S (Thiovit, 80%), with and without an organosilicone adjuvant, as a source for the foliar application. Senescence was retarded and grain yield was increased in 1998, following application of foliar S in conjunction with the organosilicone adjuvant. Application of foliar S was associated with a reduction in the level of mildew ( Erysiphe graminis ) recorded on the upper leaves and ears of the canopy. In 1999, grain yield was unaffected by treatments. A low level of mildew in the crop, particularly on the ears, is thought to be the reason for the lack of response in spite of the fact that senescence was retarded with foliar S application. A combined application of foliar S and commercial fungicide (cyproconazole) to the crop appeared to be more effective at controlling mildew than either S or fungicide applied alone. The study shows that there may be a role for S in a low‐input/organic wheat production system, where there is a need to reduce artificial inputs.
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Claims 7
Claim · model-written summary
Foliar sulphur with adjuvant retarded wheat senescence in 1998.
- Taxon
- spring wheat
Triticum aestivumt0 - Treatment
- foliar S in conjunction with the organosilicone adjuvante0
- Outcome
- Senescencee0
- Direction
- retardede0
- Qualifier
- in 1998e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Senescence was retarded and grain yield was increased in 1998, following application of foliar S in conjunction with the organosilicone adjuvant”
t0“spring wheat”
Claim · model-written summary
Foliar sulphur with adjuvant increased grain yield in 1998.
- Taxon
- spring wheatTriticum aestivumt0
- Treatment
- foliar S in conjunction with the organosilicone adjuvante0
- Outcome
- grain yielde0
- Direction
- increasede0
- Qualifier
- in 1998e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Senescence was retarded and grain yield was increased in 1998, following application of foliar S in conjunction with the organosilicone adjuvant”
t0“spring wheat”
Claim · model-written summary
Foliar sulphur was associated with reduced mildew on upper leaves and ears.
- Taxon
- spring wheatTriticum aestivumt0
- Organ / stage
- upper leaves and earse0
- Treatment
- foliar Se0
- Interactor
- Erysiphe graminis
Blumeria graminise0pathogen - Outcome
- level of mildew ( Erysiphe graminis )e0
- Direction
- reductione0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Application of foliar S was associated with a reduction in the level of mildew ( Erysiphe graminis ) recorded on the upper leaves and ears of the canopy”
t0“spring wheat”
Claim · model-written summary
Treatments did not change wheat grain yield in 1999.
- Taxon
- spring wheatTriticum aestivumt0
- Treatment
- treatmentse0
- Outcome
- grain yielde0
- Direction
- unaffectede0
- Qualifier
- In 1999e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“In 1999, grain yield was unaffected by treatments”
t0“spring wheat”
Claim · model-written summary
Foliar sulphur retarded senescence in 1999 despite absent yield response.
- Taxon
- spring wheatTriticum aestivumt0
- Treatment
- foliar S applicatione0
- Outcome
- senescencee0
- Direction
- retardede0
- Qualifier
- In 1999e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“In 1999, grain yield was unaffected by treatments. A low level of mildew in the crop, particularly on the ears, is thought to be the reason for the lack of response in spite of the fact that senescence was retarded with foliar S application”
t0“spring wheat”
Claim · model-written summary
Combined foliar sulphur and cyproconazole appeared more effective against mildew than either alone.
- Taxon
- spring wheatTriticum aestivumt0
- Treatment
- combined application of foliar S and commercial fungicide (cyproconazole)e0
- Outcome
- controlling mildewe0
- Direction
- more effectivee0
- Comparator
- either S or fungicide applied alonee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“A combined application of foliar S and commercial fungicide (cyproconazole) to the crop appeared to be more effective at controlling mildew than either S or fungicide applied alone”
t0“spring wheat”
Claim · model-written summary
Sulphur may have a role in low-input or organic wheat production.
- Taxon
- wheatTriticum aestivume0
- Outcome
- role for S in a low‐input/organic wheat production systeme0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“there may be a role for S in a low‐input/organic wheat production system”
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