Abstract
The aims of study were to evaluate the effect of sowing time in summer season on agronomic characteristics of sweet corn grown in summer season in Northwest Paraná, Brazil. The experiments were conducted in 2011, and 2012, in both years, the sowing was carried out on ST1: 09/05; ST2: 09/19; ST3: 10/03; ST4: 10/17, and ST5: 10/31. The experimental design was a randomized block design in a 5 × 2 factorial scheme, consisting of sowing time and two corn hybrids, with four replicates. The evaluated variables were plant height, leaf area index and yield of commercial ears, in which the effects of sowing times were studied through regression analysis, and effects of hybrids and agricultural years were studied by F-test. Sowing times promoted reductions in phenology of hybrids, but did not provide variations in degree-days accumulation by hybrids. The maximum leaf area index (3.82) was estimated for 10/04. In year 2011, the maximum plant height (2.17 m) and yield (13.0 Mg ha-1) were estimated for 10/06, and 10/03, respectively. While, in year 2012, the maximum height (2.22 m) and yield (12.85 Mg ha-1) were obtained on 10/09 and 10/11, respectively. The hybrid RB6324 showed greater yield potential, independent of year.
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Claims 8
Claim · model-written summary
Later sowing times reduced hybrid phenology.
Not reportedComparator
Verbatim
e0“Sowing times promoted reductions in phenology of hybrids”
t0“Sweet Corn”
Claim · model-written summary
Sowing time did not vary accumulated degree-days.
- Taxon
- Sweet Cornt0
- Treatment
- Sowing timese1
- Outcome
- degree-days accumulation by hybridse0
- Direction
- did not provide variationse0
Not reportedComparator
Verbatim
e0“did not provide variations in degree-days accumulation by hybrids”
e1“Sowing times”
t0“Sweet Corn”
Claim · model-written summary
Maximum leaf area index was estimated at 3.82 for 10/04.
Verbatim
e0“The maximum leaf area index (3.82) was estimated for 10/04.”
t0“Sweet Corn”
Claim · model-written summary
In 2011, maximum plant height was estimated at 2.17 m for 10/06.
Verbatim
e0“In year 2011, the maximum plant height (2.17 m) and yield (13.0 Mg ha-1) were estimated for 10/06, and 10/03, respectively.”
t0“Sweet Corn”
Claim · model-written summary
In 2011, maximum yield was estimated at 13.0 Mg ha-1 for 10/03.
Verbatim
e0“In year 2011, the maximum plant height (2.17 m) and yield (13.0 Mg ha-1) were estimated for 10/06, and 10/03, respectively.”
t0“Sweet Corn”
Claim · model-written summary
In 2012, maximum height was 2.22 m on 10/09.
Verbatim
e0“in year 2012, the maximum height (2.22 m) and yield (12.85 Mg ha-1) were obtained on 10/09 and 10/11, respectively.”
t0“Sweet Corn”
Claim · model-written summary
In 2012, maximum yield was 12.85 Mg ha-1 on 10/11.
Verbatim
e0“in year 2012, the maximum height (2.22 m) and yield (12.85 Mg ha-1) were obtained on 10/09 and 10/11, respectively.”
t0“Sweet Corn”
Claim · model-written summary
Hybrid RB6324 had greater yield potential in both years.
Verbatim
e0“The hybrid RB6324 showed greater yield potential, independent of year.”
t0“Sweet Corn”
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