Abstract
Weeds incur significant losses to the crop plants by not only competing with crops for water, nutrients, sunlight, and space but also harbour insects and diseases. The herbicide resistant cotton offers farming community an opportunity to combat weeds by providing flexibility of herbicide application whenever needed. In the present study, the herbicide resistant cotton was evaluated to unravel the glyphosate dose response at different time intervals. Glyphosate was applied on advance transgenic cotton line VH-289 at the time intervals of 20, 25, 30 and 40 days after germination and was compared with manual weeding of its conventional non-transgenic counterpart as control. The weed control efficacy, types, mortality, and population of nineteen different weeds were calculated with reference to the time and dose of glyphosate spray [600 mL.acre -1 (242 mL.ha-1), 800 mL.acre -1 (324 mL.ha-1), 1000 mL.acre -1 (305 mL.ha-1), 1200 mL.acre -1 (486 mL.ha-1), 1400 mL.acre -1 (566 mL.ha-1), 1600 mL.acre -1 (647 mL.ha-1), 1800 mL.acre -1 (728 mL.ha-1) and 2000 mL.acre -1 (809 mL.ha-1)] and its impact on yield. The yield and contributing characters like boll weight and cotton yield were higher in lines where glyphosate was applied at 20 and 30 days after germination compared to other treatment (manually hoed). Importantly, weeds control efficiency was recorded up to 98% at a dose concentration of 1800 mL.acre -1 and 2000 mL.acre -1 after 15-30 days after glyphosate application (DAS). The average number of bolls per plant in glyphosate resistant line was recorded higher compared to non-transgenic manually hoed control. This study highlights that spraying 1800 and 2000 mL.acre -1 glyphosate can help to eradicate weeds in field at less cost and good yield return. The results can be helpful for the cotton farmers regarding the proper concentration of glyphosate and its time of application. Keywords: Herbicides, transgenic cotton, weed control efficacy, crop yield
Abstract from the paper’s OpenAlex record; open copy licensed cc-by-nc. 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 4
Claim · model-written summary
Cotton yield and boll weight were higher with glyphosate at 20 and 30 days after germination than manual hoeing.
- Taxon
- COTTON
Gossypium hirsutumt0 - Treatment
- glyphosate was applied at 20 and 30 days after germinatione0
- Outcome
- boll weight and cotton yielde0
- Direction
- highere0
- Comparator
- manually hoede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“COTTON”
e0“The yield and contributing characters like boll weight and cotton yield were higher in lines where glyphosate was applied at 20 and 30 days after germination compared to other treatment (manually hoed)”
Claim · model-written summary
Weed control efficiency reached 98% with 1800 and 2000 mL.acre -1 glyphosate.
- Taxon
- COTTONGossypium hirsutumt0
- Treatment
- 1800 mL.acre -1 and 2000 mL.acre -1e0
- Outcome
- weeds control efficiencye0
- Direction
- up toe0
- Value
- 98%e0
- Qualifier
- after 15-30 days after glyphosate application (DAS)e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“COTTON”
e0“weeds control efficiency was recorded up to 98% at a dose concentration of 1800 mL.acre -1 and 2000 mL.acre -1 after 15-30 days after glyphosate application (DAS)”
Claim · model-written summary
Glyphosate resistant cotton had more bolls per plant than manually hoed non-transgenic cotton.
- Taxon
- COTTONGossypium hirsutumt0
- Outcome
- average number of bolls per plante0
- Direction
- highere0
- Comparator
- non-transgenic manually hoed controle0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“COTTON”
e0“The average number of bolls per plant in glyphosate resistant line was recorded higher compared to non-transgenic manually hoed control”
Claim · model-written summary
The authors recommend spraying 1800 and 2000 mL.acre -1 glyphosate for weed eradication, lower cost and yield return.
- Taxon
- COTTONGossypium hirsutumt0
- Treatment
- spraying 1800 and 2000 mL.acre -1 glyphosatee0
- Outcome
- eradicate weeds in field at less cost and good yield returne0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“COTTON”
e0“spraying 1800 and 2000 mL.acre -1 glyphosate can help to eradicate weeds in field at less cost and good yield return”
The same questions in other papers
glyphosate · yield · Gossypium hirsutum (cotton)Results differ
34 papers in the same direction as this paper · 20 in the opposite direction · 6 reporting no difference from an alternative
- positive
- negative
- negative
57 papers more in this group
See all 61 papers →processing · yield · Gossypium hirsutum (cotton)Positive and negative results
2 papers in the same direction as this paper · 2 in the opposite direction
- negative
- no effect
- positive
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.