Paper · 2024 · International Journal of Research in Agronomy

Effect of canopy management on yield and yield indices of Bt cotton under high-density planting system

SG Pawar; AD Pandagale; SG Ghule; et al.

6
claims
12
verbatim quotes
0
citations
2
research areas
—
Not open access

Abstract

A field experiment was conducted at Cotton Research Station in Nanded (Maharashtra, India) during the Kharif season of 2023 to evaluate the impacts of various canopy management treatments on yield of Bt cotton under HDPS. The study was carried out on medium black cotton soil in randomized block design with three replications and seven treatments. The treatments were, T1 - Cotton in HDPS - 90 x 30 cm (37037 plants ha-1); T2 - HDPS + de-topping at 90 DAS; T3 - HDPS + de-topping at 75 DAS; T4 - HDPS + pruning of monopodia at square formation stage; T5 - HDPS + pruning of monopodia at square formation stage and de-topping at 75 DAS; T6 - HDPS + two sprays of Mepiquat chloride @ 25 g a.i. at square formation followed by 15 days and T7 - HDPS + poly mulch + pruning of monopodia at square formation stage and de-topping at 75 DAS. Highest number of picked bolls plant-1, boll weight (g), yield plant-1 (g), Seed cotton yield (kg ha-1), lint yield (kg ha-1), stalk weight (kg ha-1) were found to be increased with T7 treatment (HDPS + poly mulch + Pruning of monopodia at square formation stage and de-topping at 75 DAS. Crop earliness, harvest index (%), rain water use efficiency and soil moisture were also improved with same treatment (T7). The seed and lint parameters viz., Seed index (g), Lint index, ginning out turn were not affected due canopy management. Lower weed density and weed dry weight were recorded in treatment with poly mulch (T7).

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Claims 6

Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

T7 increased picked boll number, boll weight and yield per plant.

Taxon
Bt cottont0
Treatment
T7 treatmente0
Outcome
number of picked bolls plant-1, boll weight (g), yield plant-1 (g)e0
Direction
increasede0

Not reportedComparator

Verbatim

t0

“Bt cotton”

✓ located verbatim in the source · title, characters 58–67 · show in text ↑
e0

“Highest number of picked bolls plant-1, boll weight (g), yield plant-1 (g), Seed cotton yield (kg ha-1), lint yield (kg ha-1), stalk weight (kg ha-1) were found to be increased with T7 treatment (HDPS + poly mulch + Pruning of monopodia at square formation stage and de-topping at 75 DAS.”

✓ located verbatim in the source · abstract, characters 835–1123 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

T7 increased seed cotton yield, lint yield and stalk weight.

Taxon
Bt cottont0
Treatment
T7 treatmente0
Outcome
Seed cotton yield (kg ha-1), lint yield (kg ha-1), stalk weight (kg ha-1)e0
Direction
increasede0

Not reportedComparator

Verbatim

t0

“Bt cotton”

✓ located verbatim in the source · title, characters 58–67 · show in text ↑
e0

“Highest number of picked bolls plant-1, boll weight (g), yield plant-1 (g), Seed cotton yield (kg ha-1), lint yield (kg ha-1), stalk weight (kg ha-1) were found to be increased with T7 treatment (HDPS + poly mulch + Pruning of monopodia at square formation stage and de-topping at 75 DAS.”

✓ located verbatim in the source · abstract, characters 835–1123 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

T7 improved crop earliness, harvest index and rain water use efficiency.

Taxon
Bt cottont0
Treatment
T7e0
Outcome
Crop earliness, harvest index (%), rain water use efficiencye0
Direction
improvede0

Not reportedComparator

Verbatim

t0

“Bt cotton”

✓ located verbatim in the source · title, characters 58–67 · show in text ↑
e0

“Crop earliness, harvest index (%), rain water use efficiency and soil moisture were also improved with same treatment (T7).”

✓ located verbatim in the source · abstract, characters 1124–1247 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

T7 improved soil moisture.

Taxon
Bt cottont0
Treatment
T7e0
Outcome
soil moisturee0
Direction
improvede0

Not reportedComparator

Verbatim

t0

“Bt cotton”

✓ located verbatim in the source · title, characters 58–67 · show in text ↑
e0

“Crop earliness, harvest index (%), rain water use efficiency and soil moisture were also improved with same treatment (T7).”

✓ located verbatim in the source · abstract, characters 1124–1247 · show in text ↑
Intervention effectobservedoriginal resultno effectmeasured

Claim · model-written summary

Canopy management did not affect seed index, lint index or ginning out turn.

Taxon
Bt cottont0
Treatment
canopy managemente0
Outcome
Seed index (g), Lint index, ginning out turne0
Direction
not affectede0

Not reportedComparator

Verbatim

t0

“Bt cotton”

✓ located verbatim in the source · title, characters 58–67 · show in text ↑
e0

“The seed and lint parameters viz., Seed index (g), Lint index, ginning out turn were not affected due canopy management.”

✓ located verbatim in the source · abstract, characters 1248–1368 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Poly mulch treatment T7 had lower weed density and dry weight.

Taxon
Bt cottont0
Treatment
poly mulch (T7)e0
Interactor
weede0weed
Outcome
weed density and weed dry weighte0
Direction
Lowere0

Not reportedComparator

Verbatim

t0

“Bt cotton”

✓ located verbatim in the source · title, characters 58–67 · show in text ↑
e0

“Lower weed density and weed dry weight were recorded in treatment with poly mulch (T7).”

✓ located verbatim in the source · abstract, characters 1369–1456 · show in text ↑

mulching · weed · Gossypium hirsutum (cotton)Results agree

10 papers: 10 positive, 0 negative or no effect

9 papers in the same direction as this paper

  1. positive
  2. positive
  3. positive

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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.