Abstract
Field experiments were conducted in 2003 and 2004 to evaluate the effects of reduced rates of glufosinate on development and yield of three nonglufosinate-resistant cotton varieties. The varieties evaluated were selected on their relative maturity with PayMaster (PM) 1218, early maturity; FiberMax (FM) 960, medium maturity; and Delta and Pine Land (DP) 555, late maturity. Rates of 47, 23, and 4.7 g ai/ha were applied, representing 10, 5, and 1% of the typical use rate per application of 467 g ai/ha, respectively. As might be expected, when averaged over varieties, the 10% rate showed more injury than the 5%, and the 5% rate caused more visual injury than the 1% rate. Pooled over timing and rate, PM1218 showed more injury (18%) than FM960 (7%), which showed more injury than DP555 (1%) 7 days after application (DAA) at the 10% rate. However, although PM1218 showed the most visual injury, this did not translate into delay in maturity or loss of lint yield. DP555 showed 70 kg ai/ha and 50 kg ai/ha lint yield loss when glufosinate was applied at the 10% rate on the fifth and eighth node stage, respectively. DP555 was delayed in maturity when glufosinate was applied at the 10% rate on the eighth node stage. FM960 showed 30 kg/ha lint yield loss when glufosinate was applied at the 10 and 5% rates at the fifth node stage. Maturity of FM960 was delayed with the 10 and 5% rates applied at the fifth node stage.Nomenclature: Glufosinate, cotton, Gossypium hirsutum L., ‘Delta & Pine Land’ (DP555), ‘FiberMax’ (FM960), ‘PayMaster’ (PM1218)
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Claims 12
Claim · model-written summary
Visual injury increased with glufosinate rate across varieties.
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the 10% rate showed more injury than the 5%, and the 5% rate caused more visual injury than the 1% rate”
t0“Cotton”
Claim · model-written summary
At the 10% rate, PM1218 had 18% injury, more than FM960 at 7%.
- Taxon
- Cotton
Gossypium hirsutumt0 - Material
- PM1218e0
- Outcome
- injurye0
- Direction
- moree0
- Value
- 18%e0
- Qualifier
- 7%e0
- Comparator
- FM960e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“PM1218 showed more injury (18%) than FM960 (7%)”
t0“Cotton”
Claim · model-written summary
At the 10% rate, FM960 had 7% injury, more than DP555 at 1%.
- Taxon
- CottonGossypium hirsutumt0
- Material
- FM960e0
- Outcome
- injurye0
- Direction
- moree0
- Value
- 7%e0
- Qualifier
- 1%e0
- Comparator
- DP555e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“FM960 (7%), which showed more injury than DP555 (1%) 7 days after application (DAA) at the 10% rate”
t0“Cotton”
Claim · model-written summary
PM1218 visual injury did not lead to delayed maturity.
- Taxon
- CottonGossypium hirsutumt0
- Material
- PM1218e0
- Outcome
- delay in maturitye0
- Direction
- did not translatee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“PM1218 showed the most visual injury, this did not translate into delay in maturity or loss of lint yield”
t0“Cotton”
Claim · model-written summary
PM1218 visual injury did not lead to lint yield loss.
- Taxon
- CottonGossypium hirsutumt0
- Material
- PM1218e0
- Outcome
- loss of lint yielde0
- Direction
- did not translatee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“PM1218 showed the most visual injury, this did not translate into delay in maturity or loss of lint yield”
t0“Cotton”
Claim · model-written summary
DP555 lost 70 kg ai/ha of lint yield after the 10% rate at fifth node.
- Taxon
- CottonGossypium hirsutumt0
- Material
- DP555e0
- Organ / stage
- fifthe0
- Treatment
- glufosinate was applied at the 10% ratee0
- Outcome
- lint yield losse0
- Direction
- losse0
- Value
- 70 kg ai/hae0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“DP555 showed 70 kg ai/ha and 50 kg ai/ha lint yield loss when glufosinate was applied at the 10% rate on the fifth and eighth node stage, respectively”
t0“Cotton”
Claim · model-written summary
DP555 lost 50 kg ai/ha of lint yield after the 10% rate at eighth node.
- Taxon
- CottonGossypium hirsutumt0
- Material
- DP555e0
- Organ / stage
- eighth node stagee0
- Treatment
- glufosinate was applied at the 10% ratee0
- Outcome
- lint yield losse0
- Direction
- losse0
- Value
- 50 kg ai/hae0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“DP555 showed 70 kg ai/ha and 50 kg ai/ha lint yield loss when glufosinate was applied at the 10% rate on the fifth and eighth node stage, respectively”
t0“Cotton”
Claim · model-written summary
DP555 maturity was delayed at the eighth node stage with the 10% rate.
- Taxon
- CottonGossypium hirsutumt0
- Material
- DP555e0
- Treatment
- glufosinate was applied at the 10% ratee0
- Outcome
- maturitye0
- Direction
- delayede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“DP555 was delayed in maturity when glufosinate was applied at the 10% rate on the eighth node stage”
t0“Cotton”
Claim · model-written summary
FM960 lost 30 kg/ha of lint yield at fifth node with the 10% rate.
- Taxon
- CottonGossypium hirsutumt0
- Material
- FM960e0
- Treatment
- 10e0
- Outcome
- lint yield losse0
- Direction
- losse0
- Value
- 30 kg/hae0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“FM960 showed 30 kg/ha lint yield loss when glufosinate was applied at the 10 and 5% rates at the fifth node stage”
t0“Cotton”
Claim · model-written summary
FM960 lost 30 kg/ha of lint yield at fifth node with the 5% rate.
- Taxon
- CottonGossypium hirsutumt0
- Material
- FM960e0
- Treatment
- 5% ratese0
- Outcome
- lint yield losse0
- Direction
- losse0
- Value
- 30 kg/hae0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“FM960 showed 30 kg/ha lint yield loss when glufosinate was applied at the 10 and 5% rates at the fifth node stage”
t0“Cotton”
Claim · model-written summary
FM960 maturity was delayed with the 10% rate at fifth node.
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Maturity of FM960 was delayed with the 10 and 5% rates applied at the fifth node stage”
t0“Cotton”
Claim · model-written summary
FM960 maturity was delayed with the 5% rate at fifth node.
- Taxon
- CottonGossypium hirsutumt0
- Material
- FM960e0
- Treatment
- 5% ratese0
- Outcome
- Maturitye0
- Direction
- delayede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Maturity of FM960 was delayed with the 10 and 5% rates applied at the fifth node stage”
t0“Cotton”
The same questions in other papers
glufosinate · quality: grain · Gossypium hirsutum (cotton)Results differ
5 papers in the same direction as this paper · 2 in the opposite direction
- no effect
- positive
- positive
4 papers more in this group
See all 8 papers →glufosinate · phenology · Gossypium hirsutum (cotton)Results agree
4 papers in the same direction as this paper
- no effect
- negative
- negative
1 paper more in this group
See all 5 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.