Abstract
Morningglories are summer annual or perennial dicots, and are troublesome weeds in sugarcane cultivated in northern India. If not controlled, they may compete with sugarcane, interfere in the harvest operation, and reduce yields. Managing morningglories in sugarcane continues to be a serious challenge for sugarcane growers. Field experiments were conducted during the 3-yr period from 2007 to 2009 to evaluate herbicides applied PRE and POST for control of morningglories in sugarcane. The herbicides applied PRE included diuron, metribuzin, and atrazine at 1.6, 1.4, and 1.0 kg ai ha −1 , respectively, applied alone or followed by 2,4-D amine salt (0.58 or 1.16 kg ae ha −1 ) or 2,4-D sodium salt (0.8 or 1.6 kg ae ha −1 ) applied POST. Herbicides applied PRE controlled morningglories ≤ 87% at 15 d after treatment (DAT); however, control reduced to ≤ 56% at 90 DAT. Control improved when herbicides applied PRE were followed by POST application of 2,4-D amine or sodium salt. For example, diuron applied PRE followed by 2,4-D amine salt applied POST at any rate provided 100% control of morningglories at 15 and 30 DAT. At 90 d after POST application, control ranged from 68 to 82% with the PRE followed by POST herbicides, compared to 0% control when metribuzin or atrazine were applied PRE alone. The density and biomass of morningglories was also reduced to zero in treatments that included 2,4-D amine salt. The number of millable canes, cane height, and single cane weight was superior in PRE followed by POST herbicide treatments compared to herbicides applied PRE alone. Maximum cane yield was recorded for the treatments that included 2,4-D amine or sodium salt compared to only PRE treatments, and it was usually comparable with the nontreated weed-free control. It is concluded that a combination of PRE and POST herbicides were effective for control of morningglories; however, more research is required to evaluate other herbicides and their tank mix partners for control of morningglories in sugarcane.
Abstract from the paper’s OpenAlex record, shown for indexing and research. Copyright remains with the authors or the publisher. Read at the source ↗
The text the model read, with the source record’s inline markup (italics, sub- and superscripts) rendered and its character entities decoded; quote offsets refer to the raw text.
Claims 9
Claim · model-written summary
PRE herbicides controlled morningglories by at most 87% at 15 DAT.
- Taxon
- Sugarcanet0
- Treatment
- Herbicides applied PREe0
- Interactor
- morninggloriese1weed
- Outcome
- controlled morninggloriese0
- Direction
- controllede0
- Value
- ≤ 87%e0
- Setting
- northern Indiae1
Not reportedComparator
Verbatim
t0“Sugarcane”
e0“Herbicides applied PRE controlled morningglories ≤ 87% at 15 d after treatment (DAT); however, control reduced to ≤ 56% at 90 DAT.”
e1“Morningglories are summer annual or perennial dicots, and are troublesome weeds in sugarcane cultivated in northern India.”
Claim · model-written summary
PRE herbicide control declined to at most 56% at 90 DAT.
- Taxon
- Sugarcanet0
- Treatment
- Herbicides applied PREe0
- Interactor
- morninggloriese1weed
- Outcome
- controle0
- Direction
- reducede0
- Value
- ≤ 56%e0
- Setting
- northern Indiae1
Not reportedComparator
Verbatim
t0“Sugarcane”
e0“Herbicides applied PRE controlled morningglories ≤ 87% at 15 d after treatment (DAT); however, control reduced to ≤ 56% at 90 DAT.”
e1“Morningglories are summer annual or perennial dicots, and are troublesome weeds in sugarcane cultivated in northern India.”
Claim · model-written summary
POST 2,4-D after PRE herbicides improved morningglory control.
- Taxon
- Sugarcanet0
- Treatment
- herbicides applied PRE were followed by POST application of 2,4-D amine or sodium salte0
- Interactor
- morninggloriese1weed
- Outcome
- Controle0
- Direction
- improvede0
- Setting
- northern Indiae1
Not reportedComparator
Verbatim
t0“Sugarcane”
e0“Control improved when herbicides applied PRE were followed by POST application of 2,4-D amine or sodium salt.”
e1“Morningglories are summer annual or perennial dicots, and are troublesome weeds in sugarcane cultivated in northern India.”
Claim · model-written summary
PRE diuron followed by POST 2,4-D amine gave complete morningglory control at 15 and 30 DAT.
- Taxon
- Sugarcanet0
- Treatment
- diuron applied PRE followed by 2,4-D amine salt applied POSTe0
- Interactor
- morninggloriese1weed
- Outcome
- control of morninggloriese0
- Direction
- providede0
- Value
- 100%e0
- Setting
- northern Indiae1
Not reportedComparator
Verbatim
t0“Sugarcane”
e0“diuron applied PRE followed by 2,4-D amine salt applied POST at any rate provided 100% control of morningglories at 15 and 30 DAT.”
e1“Morningglories are summer annual or perennial dicots, and are troublesome weeds in sugarcane cultivated in northern India.”
Claim · model-written summary
PRE then POST herbicides gave 68 to 82% control at 90 days, compared with zero for PRE metribuzin or atrazine alone.
Verbatim
t0“Sugarcane”
e0“At 90 d after POST application, control ranged from 68 to 82% with the PRE followed by POST herbicides, compared to 0% control when metribuzin or atrazine were applied PRE alone.”
e1“Morningglories are summer annual or perennial dicots, and are troublesome weeds in sugarcane cultivated in northern India.”
Claim · model-written summary
Treatments including 2,4-D amine reduced morningglory density and biomass to zero.
- Taxon
- Sugarcanet0
- Treatment
- treatments that included 2,4-D amine salte0
- Interactor
- morninggloriese1weed
- Outcome
- density and biomass of morninggloriese0
- Direction
- reducede0
- Value
- zeroe0
- Setting
- northern Indiae1
Not reportedComparator
Verbatim
t0“Sugarcane”
e0“The density and biomass of morningglories was also reduced to zero in treatments that included 2,4-D amine salt.”
e1“Morningglories are summer annual or perennial dicots, and are troublesome weeds in sugarcane cultivated in northern India.”
Claim · model-written summary
PRE followed by POST herbicides improved millable cane number, height and weight relative to PRE alone.
Verbatim
t0“Sugarcane”
e0“The number of millable canes, cane height, and single cane weight was superior in PRE followed by POST herbicide treatments compared to herbicides applied PRE alone.”
e1“Morningglories are summer annual or perennial dicots, and are troublesome weeds in sugarcane cultivated in northern India.”
Claim · model-written summary
Treatments including POST 2,4-D amine or sodium salt maximized cane yield relative to PRE alone.
Verbatim
t0“Sugarcane”
e0“Maximum cane yield was recorded for the treatments that included 2,4-D amine or sodium salt compared to only PRE treatments, and it was usually comparable with the nontreated weed-free control.”
e1“Morningglories are summer annual or perennial dicots, and are troublesome weeds in sugarcane cultivated in northern India.”
Claim · model-written summary
Yield under POST 2,4-D treatments was usually comparable to the weed-free control.
Verbatim
t0“Sugarcane”
e0“Maximum cane yield was recorded for the treatments that included 2,4-D amine or sodium salt compared to only PRE treatments, and it was usually comparable with the nontreated weed-free control.”
e1“Morningglories are summer annual or perennial dicots, and are troublesome weeds in sugarcane cultivated in northern India.”
The same questions in other papers
2,4-D · yield · Saccharum officinarum (sugarcane)Results differ
9 papers in the same direction as this paper · 3 in the opposite direction
- negative
- negative
- negative
9 papers more in this group
See all 13 papers →2,4-D · growth · Saccharum officinarum (sugarcane)Positive and negative results
35 papers in the same direction as this paper · 2 in the opposite direction
- negative
- negative
- positive
34 papers more in this group
See all 38 papers →sodium salt · yield · Saccharum officinarum (sugarcane)Results agree
1 paper in the same direction as this paper
- positive
diuron · control · Saccharum officinarum (sugarcane)Results agree
1 paper in the same direction as this paper
- positive
herbicide · growth · Saccharum officinarum (sugarcane)Positive and negative results
3 papers in the same direction as this paper · 3 in the opposite direction
- negative
- no effect
- negative
3 papers more in this group
See all 7 papers →herbicide · control · Saccharum officinarum (sugarcane)Results agree
2 papers in the same direction as this paper
- positive
- 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.