Abstract
Among agronomic factors, sowing time and plant spacing are considered key management components in any cropping system to harvest a profitable seed cotton yield. Thus, the present studies were conducted to determine the effects of sowing date and plant spacing on growth and yield of cotton under an arid sub-tropical continental climate during 2004-05. Result indicated better yield responses and reproductive vegetative ratio (RVR) in early sown cotton at high plant density. For crop growth rate (CGR) and relative growth rate (RGR), different plant responses were observed. Early sowing showed the highest CGR50 and RGR50 while at late sowings, CGR100 or CGR150 was highest. Correlation analysis and Path analysis were carried out to understand the effect of different plant traits on seed cotton yield under optimum plant spacing (15cm) and sowing dates (10-May). Both conditions indicated highest association of seed cotton yield with number of bolls per plant and reproductive/vegetative ratio. On the other hand boll weight showed negative association with seed cotton yield. However, path analysis showed the highest direct effect of reproductive/vegetative ratio on seed cotton yield under early sowing dates (10-May). Furthermore, highest correlation of boll number with seed cotton yield was also due to indirect effects through RVR. On the other hand, reproductive dry matter showed highest direct effect on seed cotton yield under high plant density (15cm).
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Claims 11
Claim · model-written summary
Early sowing at high density improved cotton yield response.
- Taxon
- cotton
Gossypium hirsutume0 - Treatment
- early sown cotton at high plant densitye0
- Outcome
- yield responsese0
- Direction
- bettere0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Result indicated better yield responses and reproductive vegetative ratio (RVR) in early sown cotton at high plant density.”
Claim · model-written summary
Early sowing at high density improved reproductive vegetative ratio.
- Taxon
- cottonGossypium hirsutume0
- Treatment
- early sown cotton at high plant densitye0
- Outcome
- reproductive vegetative ratio (RVR)e0
- Direction
- bettere0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Result indicated better yield responses and reproductive vegetative ratio (RVR) in early sown cotton at high plant density.”
Claim · model-written summary
Early sowing had the highest CGR50.
- Taxon
- cottonGossypium hirsutumt0
- Treatment
- Early sowinge0
- Outcome
- CGR50e0
- Direction
- higheste0
- Comparator
- late sowingse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Early sowing showed the highest CGR50 and RGR50 while at late sowings, CGR100 or CGR150 was highest.”
t0“COTTON”
Claim · model-written summary
Early sowing had the highest RGR50.
- Taxon
- cottonGossypium hirsutumt0
- Treatment
- Early sowinge0
- Outcome
- RGR50e0
- Direction
- higheste0
- Comparator
- late sowingse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Early sowing showed the highest CGR50 and RGR50 while at late sowings, CGR100 or CGR150 was highest.”
t0“COTTON”
Claim · model-written summary
Late sowings had the highest CGR100 or CGR150.
- Taxon
- cottonGossypium hirsutumt0
- Treatment
- late sowingse0
- Outcome
- CGR100 or CGR150e0
- Direction
- higheste0
- Comparator
- Early sowinge0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Early sowing showed the highest CGR50 and RGR50 while at late sowings, CGR100 or CGR150 was highest.”
t0“COTTON”
Claim · model-written summary
Seed cotton yield was most associated with boll number.
- Taxon
- cottonGossypium hirsutume0
- Outcome
- seed cotton yielde0
- Direction
- highest associatione0
- Qualifier
- number of bolls per plante0
- Setting
- optimum plant spacing (15cm) and sowing dates (10-May)e1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Both conditions indicated highest association of seed cotton yield with number of bolls per plant and reproductive/vegetative ratio.”
e1“under optimum plant spacing (15cm) and sowing dates (10-May)”
Claim · model-written summary
Seed cotton yield was most associated with reproductive/vegetative ratio.
- Taxon
- cottonGossypium hirsutume0
- Outcome
- seed cotton yielde0
- Direction
- highest associatione0
- Qualifier
- reproductive/vegetative ratioe0
- Setting
- optimum plant spacing (15cm) and sowing dates (10-May)e1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Both conditions indicated highest association of seed cotton yield with number of bolls per plant and reproductive/vegetative ratio.”
e1“under optimum plant spacing (15cm) and sowing dates (10-May)”
Claim · model-written summary
Boll weight was negatively associated with seed cotton yield.
- Taxon
- cottonGossypium hirsutumt0
- Organ / stage
- bolle0
- Outcome
- seed cotton yielde0
- Direction
- negative associatione0
- Qualifier
- boll weighte0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“boll weight showed negative association with seed cotton yield.”
t0“COTTON”
Claim · model-written summary
Path analysis gave RVR the highest direct effect on yield under early sowing.
- Taxon
- cottonGossypium hirsutumt0
- Treatment
- early sowing dates (10-May)e0
- Outcome
- seed cotton yielde0
- Direction
- highest direct effecte0
- Qualifier
- reproductive/vegetative ratioe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“path analysis showed the highest direct effect of reproductive/vegetative ratio on seed cotton yield under early sowing dates (10-May).”
t0“COTTON”
Claim · model-written summary
The boll number correlation with yield included indirect effects through RVR.
- Taxon
- cottonGossypium hirsutumt0
- Organ / stage
- bolle0
- Outcome
- seed cotton yielde0
- Direction
- highest correlatione0
- Qualifier
- indirect effects through RVRe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“highest correlation of boll number with seed cotton yield was also due to indirect effects through RVR.”
t0“COTTON”
Claim · model-written summary
Reproductive dry matter had the highest direct effect on yield at high density.
- Taxon
- cottonGossypium hirsutumt0
- Treatment
- high plant density (15cm)e0
- Outcome
- seed cotton yielde0
- Direction
- highest direct effecte0
- Qualifier
- reproductive dry mattere0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“reproductive dry matter showed highest direct effect on seed cotton yield under high plant density (15cm).”
t0“COTTON”
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- no effect
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See all 95 papers →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
- positive
- positive
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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.