Abstract
The experiment was carried out in the vegetation seasons of 2010 and 2011. The main purpose of the study was to determine the effects of mulch practices (a control-unmulched treatment, a plastic mulch treatment, and a straw mulch treatment) on fresh ear yield and some yield-related traits of sweet corn according to 3 sowing dates: 1 April, 15 April, and 1 May, respectively. The main effects of sowing dates were significant for the harvest period, the emerging rate from soil, the fresh ear yield per hectare, and the yield components of the sweet corn. The emergence rate of sweet corn was decreased on 1 April and 15 April due to the low soil temperature on these sowing dates. Of the mulch practices, the plastic mulch practice resulted in the highest emergence rate, the highest ear length, the highest ear diameter, the highest ear weight, the highest number of kernels per ear, the highest fresh ear yield, and the highest fresh ear number in both 2010 and 2011. The fresh ear yield and yield components were decreased by the straw mulch practice in both 2010 and 2011. The effects of the sowing date × mulch practice interactions on emergence rate, fresh ear yield, and some yield-related traits of sweet corn were statistically (P < 0.05 and P < 0.01) significant in both years. Of the interactions between the sowing dates and the mulch practices, the highest emergence rate (91.2% in 2010 and 93.7% in 2011), highest ear length (18.4 cm in 2010 and 18.5 cm in 2011), highest ear diameter (45.2 mm in 2010 and 46.5 mm in 2011), highest ear weight (229.1 g in 2010 and 227.1 g in 2011), highest number of kernels per ear (562.1 grains in 2010 and 552.3 grains in 2011), highest fresh ear yield (14,952.6 kg ha^{-1} in 2010 and 14,805.2 kg ha^{-1} in 2011), and highest fresh ear numbers (65,781.8 cobs ha^{-1} in 2010 and 65,789.6 cobs ha^{-1} in 2011) were determined from the plastic mulch practices on 1 May, the latest sowing date. The lowest emergence rate, the lowest fresh ear yield, and the lowest yield components were obtained from the straw mulch practice on 1 April, the earliest sowing date, in both 2010 and 2011.
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Claims 16
Claim · model-written summary
Sowing date had significant main effects on harvest period, emergence rate and fresh ear yield of sweet corn.
- Taxon
- sweet cornt0
- Treatment
- sowing datese0
- Outcome
- the harvest period, the emerging rate from soil, the fresh ear yield per hectaree0
Not reportedComparatorDirection
Verbatim
t0“sweet corn”
e0“The main effects of sowing dates were significant for the harvest period, the emerging rate from soil, the fresh ear yield per hectare”
Claim · model-written summary
Sowing date had significant main effects on yield components of sweet corn.
Not reportedComparatorDirection
Verbatim
t0“sweet corn”
e0“The main effects of sowing dates were significant for the harvest period, the emerging rate from soil, the fresh ear yield per hectare”
e1“the yield components of the sweet corn”
Claim · model-written summary
Emergence rate of sweet corn decreased when sown on 1 April and 15 April, attributed to low soil temperature.
- Taxon
- sweet cornt0
- Treatment
- 1 April and 15 Aprile2
- Outcome
- emergence ratee2
- Direction
- decreasede2
- Qualifier
- due to the low soil temperaturee2
Not reportedComparator
Verbatim
t0“sweet corn”
e2“The emergence rate of sweet corn was decreased on 1 April and 15 April due to the low soil temperature on these sowing dates”
Claim · model-written summary
Plastic mulch gave the highest emergence rate among the mulch practices of sweet corn.
Verbatim
t0“sweet corn”
e3“Of the mulch practices, the plastic mulch practice resulted in the highest emergence rate, the highest ear length, the highest ear diameter, the highest ear weight, the highest number of kernels per ear, the highest fresh ear yield, and the highest fresh ear number in both 2010 and 2011”
Claim · model-written summary
Plastic mulch gave the highest ear length, ear diameter and ear weight of sweet corn in both years.
Verbatim
t0“sweet corn”
e3“Of the mulch practices, the plastic mulch practice resulted in the highest emergence rate, the highest ear length, the highest ear diameter, the highest ear weight, the highest number of kernels per ear, the highest fresh ear yield, and the highest fresh ear number in both 2010 and 2011”
Claim · model-written summary
Plastic mulch gave the highest number of kernels per ear, fresh ear yield and fresh ear number of sweet corn in both years.
Verbatim
t0“sweet corn”
e3“Of the mulch practices, the plastic mulch practice resulted in the highest emergence rate, the highest ear length, the highest ear diameter, the highest ear weight, the highest number of kernels per ear, the highest fresh ear yield, and the highest fresh ear number in both 2010 and 2011”
Claim · model-written summary
Straw mulch decreased fresh ear yield and yield components of sweet corn in both years.
- Taxon
- sweet cornt0
- Treatment
- straw mulch practicee4
- Outcome
- fresh ear yield and yield componentse4
- Direction
- decreasede4
- Qualifier
- in both 2010 and 2011e4
Not reportedComparator
Verbatim
t0“sweet corn”
e4“The fresh ear yield and yield components were decreased by the straw mulch practice in both 2010 and 2011”
Claim · model-written summary
Sowing date by mulch practice interactions significantly affected emergence rate, fresh ear yield and some yield-related traits of sweet corn in both years.
- Taxon
- sweet cornt0
- Treatment
- sowing date × mulch practice interactionse5
- Outcome
- emergence rate, fresh ear yield, and some yield-related traitse5
- Qualifier
- P < 0.05 and P < 0.01e5
Not reportedDirection
Verbatim
t0“sweet corn”
e5“The effects of the sowing date × mulch practice interactions on emergence rate, fresh ear yield, and some yield-related traits of sweet corn were statistically (P < 0.05 and P < 0.01) significant in both years”
Claim · model-written summary
The sowing date by mulch interaction with plastic mulch on 1 May gave the highest emergence rate, 91.2% in 2010 and 93.7% in 2011.
- Taxon
- sweet cornt0
- Treatment
- plastic mulch practices on 1 Maye6
- Outcome
- emergence ratee0
- Direction
- higheste0
- Value
- 91.2% in 2010 and 93.7% in 2011e0
Not reportedComparator
Verbatim
t0“sweet corn”
e0“highest emergence rate (91.2% in 2010 and 93.7% in 2011)”
e6“were determined from the plastic mulch practices on 1 May, the latest sowing date”
Claim · model-written summary
The sowing date by mulch interaction with plastic mulch on 1 May gave the highest ear length, 18.4 cm in 2010 and 18.5 cm in 2011.
- Taxon
- sweet cornt0
- Treatment
- plastic mulch practices on 1 Maye6
- Outcome
- ear lengthe0
- Direction
- higheste0
- Value
- 18.4 cm in 2010 and 18.5 cm in 2011e0
Not reportedComparator
Verbatim
t0“sweet corn”
e0“highest ear length (18.4 cm in 2010 and 18.5 cm in 2011)”
e6“were determined from the plastic mulch practices on 1 May, the latest sowing date”
Claim · model-written summary
The sowing date by mulch interaction with plastic mulch on 1 May gave the highest ear diameter, 45.2 mm in 2010 and 46.5 mm in 2011.
- Taxon
- sweet cornt0
- Treatment
- plastic mulch practices on 1 Maye6
- Outcome
- ear diametere0
- Direction
- higheste0
- Value
- 45.2 mm in 2010 and 46.5 mm in 2011e0
Not reportedComparator
Verbatim
t0“sweet corn”
e0“highest ear diameter (45.2 mm in 2010 and 46.5 mm in 2011)”
e6“were determined from the plastic mulch practices on 1 May, the latest sowing date”
Claim · model-written summary
The sowing date by mulch interaction with plastic mulch on 1 May gave the highest ear weight, 229.1 g in 2010 and 227.1 g in 2011.
- Taxon
- sweet cornt0
- Treatment
- plastic mulch practices on 1 Maye6
- Outcome
- ear weighte0
- Direction
- higheste0
- Value
- 229.1 g in 2010 and 227.1 g in 2011e0
Not reportedComparator
Verbatim
t0“sweet corn”
e0“highest ear weight (229.1 g in 2010 and 227.1 g in 2011)”
e6“were determined from the plastic mulch practices on 1 May, the latest sowing date”
Claim · model-written summary
The sowing date by mulch interaction with plastic mulch on 1 May gave the highest number of kernels per ear, 562.1 grains in 2010 and 552.3 grains in 2011.
- Taxon
- sweet cornt0
- Treatment
- plastic mulch practices on 1 Maye6
- Outcome
- number of kernels per eare0
- Direction
- higheste0
- Value
- 562.1 grains in 2010 and 552.3 grains in 2011e0
Not reportedComparator
Verbatim
t0“sweet corn”
e0“highest number of kernels per ear (562.1 grains in 2010 and 552.3 grains in 2011)”
e6“were determined from the plastic mulch practices on 1 May, the latest sowing date”
Claim · model-written summary
The sowing date by mulch interaction with plastic mulch on 1 May gave the highest fresh ear yield, 14,952.6 kg ha^{-1} in 2010 and 14,805.2 kg ha^{-1} in 2011.
- Taxon
- sweet cornt0
- Treatment
- plastic mulch practices on 1 Maye6
- Outcome
- fresh ear yielde0
- Direction
- higheste0
- Value
- 14,952.6 kg ha^{-1} in 2010 and 14,805.2 kg ha^{-1} in 2011e0
Not reportedComparator
Verbatim
t0“sweet corn”
e0“highest fresh ear yield (14,952.6 kg ha^{-1} in 2010 and 14,805.2 kg ha^{-1} in 2011)”
e6“were determined from the plastic mulch practices on 1 May, the latest sowing date”
Claim · model-written summary
The sowing date by mulch interaction with plastic mulch on 1 May gave the highest fresh ear number, 65,781.8 cobs ha^{-1} in 2010 and 65,789.6 cobs ha^{-1} in 2011.
- Taxon
- sweet cornt0
- Treatment
- plastic mulch practices on 1 Maye6
- Outcome
- fresh ear numberse0
- Direction
- higheste0
- Value
- 65,781.8 cobs ha^{-1} in 2010 and 65,789.6 cobs ha^{-1} in 2011e0
Not reportedComparator
Verbatim
t0“sweet corn”
e0“highest fresh ear numbers (65,781.8 cobs ha^{-1} in 2010 and 65,789.6 cobs ha^{-1} in 2011)”
e6“were determined from the plastic mulch practices on 1 May, the latest sowing date”
Claim · model-written summary
Straw mulch on 1 April gave the lowest emergence rate, fresh ear yield and yield components of sweet corn in both years.
- Taxon
- sweet cornt0
- Treatment
- straw mulch practice on 1 Aprile7
- Outcome
- the lowest emergence rate, the lowest fresh ear yield, and the lowest yield componentse7
- Direction
- loweste7
- Qualifier
- in both 2010 and 2011e7
Not reportedComparator
Verbatim
t0“sweet corn”
e7“The lowest emergence rate, the lowest fresh ear yield, and the lowest yield components were obtained from the straw mulch practice on 1 April, the earliest sowing date, in both 2010 and 2011”
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