Abstract
Cotton production is integral to economic development of Pakistan. However, cotton leaf curl virus (CLCuV) infestation affects the growth and productivity of cotton, and has been causing serious yield losses for the last two decades. Transgenic Bt varieties have resistance against CLCuV and can produce the high yield. This experiment was conducted to evaluate the effect of different sowing methods (flat sowing and bed sowing) and plant spacing (22.5 and 30 cm) on CLCuV infestation, whitefly population and growth and yield of two Bt cultivars viz. AA-703 and FH-113 during 2010 and again in 2011. The experiment was laid out in a split-split plot design with three replications. The average of the two years' results showed that there was 78% CLCuV incidence in 30 cm spacing as compared to 85% incidence in 22.5 cm spacing. However, cotton crop grown at narrow spacing with higher plant population (44444 plants ha -1 ) produced 17% higher seed cotton yield than wider spacing with lower plant population (33333 plants ha -1 ). The sowing methods did not significantly affect the disease incidence nonetheless the seed cotton yield of bed sown crop was 21% higher than the flat sown cotton crop. Cultivar AA-703 produced 14% higher seed cotton yield than cultivar FH-113 due to low disease infestation, higher boll weight and more number of bolls. The net profit (Rs. 102577 ha -1 ) and benefit cost ratio (1.65) indicated that cotton cultivar AA-703 sown on beds at plant spacing of 22.5 cm could produce the maximum seed cotton yield.
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Claims 6
Claim · model-written summary
CLCuV incidence was 78% at 30 cm spacing versus 85% at 22.5 cm.
- Taxon
- Cotton
Gossypium hirsutumt0 - Treatment
- 30 cm spacinge0
- Interactor
- CLCuVCotton leaf curl viruse0pathogen
- Outcome
- CLCuV incidencee0
- Direction
- lowerinferrede0
- Value
- 78%e0
- Qualifier
- 85%e0
- Comparator
- 22.5 cm spacinge0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“there was 78% CLCuV incidence in 30 cm spacing as compared to 85% incidence in 22.5 cm spacing”
t0“Bt Cotton Cultivars”
Claim · model-written summary
Narrow spacing produced 17% higher seed cotton yield than wider spacing.
- Taxon
- cottonGossypium hirsutume0
- Treatment
- narrow spacinge0
- Outcome
- seed cotton yielde0
- Direction
- highere0
- Value
- 17%e0
- Comparator
- wider spacinge0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“cotton crop grown at narrow spacing with higher plant population (44444 plants ha -1 ) produced 17% higher seed cotton yield than wider spacing with lower plant population (33333 plants ha -1 )”
Claim · model-written summary
Sowing method did not significantly affect cotton disease incidence.
- Taxon
- CottonGossypium hirsutumt0
- Treatment
- sowing methodse0
- Interactor
- Cotton Leaf Curl VirusCotton leaf curl virust0pathogen
- Outcome
- disease incidencee0
- Direction
- did not significantly affecte0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The sowing methods did not significantly affect the disease incidence”
t0“Cotton Leaf Curl Virus in two Bt Cotton Cultivars”
Claim · model-written summary
Bed sowing gave 21% higher seed cotton yield than flat sowing.
- Taxon
- cottonGossypium hirsutume0
- Treatment
- bed sown crope0
- Outcome
- seed cotton yielde0
- Direction
- highere0
- Value
- 21%e0
- Comparator
- flat sown cotton crope0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“seed cotton yield of bed sown crop was 21% higher than the flat sown cotton crop”
Claim · model-written summary
AA-703 yielded 14% more seed cotton than FH-113.
- Taxon
- cottonGossypium hirsutume0
- Material
- AA-703e0
- Outcome
- seed cotton yielde0
- Direction
- highere0
- Value
- 14%e0
- Qualifier
- low disease infestation, higher boll weight and more number of bollse0
- Comparator
- FH-113e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Cultivar AA-703 produced 14% higher seed cotton yield than cultivar FH-113 due to low disease infestation, higher boll weight and more number of bolls”
Claim · model-written summary
AA-703 on beds at 22.5 cm spacing was judged to produce maximum seed cotton yield, with net profit Rs. 102577 ha -1 and benefit cost ratio 1.65.
- Taxon
- cottonGossypium hirsutume0
- Treatment
- AA-703 sown on beds at plant spacing of 22.5 cme0
- Outcome
- maximum seed cotton yielde0
- Value
- Rs. 102577 ha -1e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The net profit (Rs. 102577 ha -1 ) and benefit cost ratio (1.65) indicated that cotton cultivar AA-703 sown on beds at plant spacing of 22.5 cm could produce the maximum seed cotton yield”
The same questions in other papers
density · Cotton leaf curl virus · Gossypium hirsutum (cotton)Positive and negative results
1 in the opposite direction
- no effect
density · yield · Gossypium hirsutum (cotton)Positive and negative results
129 papers in the same direction as this paper · 38 in the opposite direction · 3 reporting no difference from an alternative
- no effect
- no effect
- no effect
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See all 171 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.