Abstract
To determine the appropriate seeding rate for machine-transplanted hybrid rice, field experiments were conducted during 2022–2023 using the hybrid rice variety Huazhe You 210 as the material. Four seeding rate treatments were set up: 40 (T1), 60 (T2), 80 (T3) and 100 g tray -1 (T4), to investigate the effects of seeding rate on the seedling quality, transplanting quality, yield formation, and economic benefits of high-quality indica hybrid rice seedlings. The results showed that with increasing seeding rate, the seedling base stem diameter and seedling plumpness of hybrid rice seedlings decreased, but the root entwining force gradually increased, leading to a deterioration in individual seedling quality but an improvement in collective characteristics. As the seeding rate increased, the missing hill rate during mechanical planting of hybrid rice significantly decreased, while the number of seedlings per hill and the damaged seedling rate showed an upward trend. The growth volume of tillers, tillering spikelet rate, and harvest index of hybrid rice in the field showed an overall downward trend with increasing seeding rate, while the accumulation of dry matter initially increased and then decreased. The yield and economic benefits of hybrid rice grains showed an initial increase followed by a decrease with increasing seeding rate, with the highest yield and economic benefits achieved with the T2 treatment. In conclusion, the appropriate seeding rate for machine-transplanted hybrid rice is T2 (60 g tray -1 ), which can maintain good seedling quality and improve transplanting quality, coordinate larger collective growth and appropriate harvest index, contributing to high yield and good economic benefits.
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Claims 17
Claim · model-written summary
Higher seeding rate decreased seedling base stem diameter.
- Taxon
- hybrid rice
Oryza sativat0 - Treatment
- seeding ratee0
- Outcome
- seedling base stem diametere0
- Direction
- decreasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Optimal seeding rate enhances seedling quality, mechanical transplanting quality, and yield in hybrid rice”
e0“The results showed that with increasing seeding rate, the seedling base stem diameter and seedling plumpness of hybrid rice seedlings decreased, but the root entwining force gradually increased, leading to a deterioration in individual seedling quality but an improvement in collective characteristics.”
Claim · model-written summary
Higher seeding rate decreased seedling plumpness.
- Taxon
- hybrid riceOryza sativat0
- Treatment
- seeding ratee0
- Outcome
- seedling plumpnesse0
- Direction
- decreasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Optimal seeding rate enhances seedling quality, mechanical transplanting quality, and yield in hybrid rice”
e0“The results showed that with increasing seeding rate, the seedling base stem diameter and seedling plumpness of hybrid rice seedlings decreased, but the root entwining force gradually increased, leading to a deterioration in individual seedling quality but an improvement in collective characteristics.”
Claim · model-written summary
Higher seeding rate increased root entwining force.
- Taxon
- hybrid riceOryza sativat0
- Treatment
- seeding ratee0
- Outcome
- root entwining forcee0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Optimal seeding rate enhances seedling quality, mechanical transplanting quality, and yield in hybrid rice”
e0“The results showed that with increasing seeding rate, the seedling base stem diameter and seedling plumpness of hybrid rice seedlings decreased, but the root entwining force gradually increased, leading to a deterioration in individual seedling quality but an improvement in collective characteristics.”
Claim · model-written summary
Higher seeding rate deteriorated individual seedling quality.
- Taxon
- hybrid riceOryza sativat0
- Treatment
- seeding ratee0
- Outcome
- individual seedling qualitye0
- Direction
- deterioratione0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Optimal seeding rate enhances seedling quality, mechanical transplanting quality, and yield in hybrid rice”
e0“The results showed that with increasing seeding rate, the seedling base stem diameter and seedling plumpness of hybrid rice seedlings decreased, but the root entwining force gradually increased, leading to a deterioration in individual seedling quality but an improvement in collective characteristics.”
Claim · model-written summary
Higher seeding rate improved collective characteristics.
- Taxon
- hybrid riceOryza sativat0
- Treatment
- seeding ratee0
- Outcome
- collective characteristicse0
- Direction
- improvemente0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Optimal seeding rate enhances seedling quality, mechanical transplanting quality, and yield in hybrid rice”
e0“The results showed that with increasing seeding rate, the seedling base stem diameter and seedling plumpness of hybrid rice seedlings decreased, but the root entwining force gradually increased, leading to a deterioration in individual seedling quality but an improvement in collective characteristics.”
Claim · model-written summary
Higher seeding rate significantly lowered missing hill rate.
- Taxon
- hybrid riceOryza sativat0
- Treatment
- seeding ratee0
- Outcome
- missing hill ratee0
- Direction
- decreasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Optimal seeding rate enhances seedling quality, mechanical transplanting quality, and yield in hybrid rice”
e0“As the seeding rate increased, the missing hill rate during mechanical planting of hybrid rice significantly decreased, while the number of seedlings per hill and the damaged seedling rate showed an upward trend.”
Claim · model-written summary
Higher seeding rate increased number of seedlings per hill.
- Taxon
- hybrid riceOryza sativat0
- Treatment
- seeding ratee0
- Outcome
- number of seedlings per hille0
- Direction
- upward trende0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Optimal seeding rate enhances seedling quality, mechanical transplanting quality, and yield in hybrid rice”
e0“As the seeding rate increased, the missing hill rate during mechanical planting of hybrid rice significantly decreased, while the number of seedlings per hill and the damaged seedling rate showed an upward trend.”
Claim · model-written summary
Higher seeding rate increased damaged seedling rate.
- Taxon
- hybrid riceOryza sativat0
- Treatment
- seeding ratee0
- Outcome
- damaged seedling ratee0
- Direction
- upward trende0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Optimal seeding rate enhances seedling quality, mechanical transplanting quality, and yield in hybrid rice”
e0“As the seeding rate increased, the missing hill rate during mechanical planting of hybrid rice significantly decreased, while the number of seedlings per hill and the damaged seedling rate showed an upward trend.”
Claim · model-written summary
Higher seeding rate lowered growth volume of tillers.
- Taxon
- hybrid riceOryza sativat0
- Treatment
- seeding ratee0
- Outcome
- growth volume of tillerse0
- Direction
- downward trende0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Optimal seeding rate enhances seedling quality, mechanical transplanting quality, and yield in hybrid rice”
e0“The growth volume of tillers, tillering spikelet rate, and harvest index of hybrid rice in the field showed an overall downward trend with increasing seeding rate, while the accumulation of dry matter initially increased and then decreased.”
Claim · model-written summary
Higher seeding rate lowered tillering spikelet rate.
- Taxon
- hybrid riceOryza sativat0
- Treatment
- seeding ratee0
- Outcome
- tillering spikelet ratee0
- Direction
- downward trende0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Optimal seeding rate enhances seedling quality, mechanical transplanting quality, and yield in hybrid rice”
e0“The growth volume of tillers, tillering spikelet rate, and harvest index of hybrid rice in the field showed an overall downward trend with increasing seeding rate, while the accumulation of dry matter initially increased and then decreased.”
Claim · model-written summary
Higher seeding rate lowered harvest index.
- Taxon
- hybrid riceOryza sativat0
- Treatment
- seeding ratee0
- Outcome
- harvest indexe0
- Direction
- downward trende0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Optimal seeding rate enhances seedling quality, mechanical transplanting quality, and yield in hybrid rice”
e0“The growth volume of tillers, tillering spikelet rate, and harvest index of hybrid rice in the field showed an overall downward trend with increasing seeding rate, while the accumulation of dry matter initially increased and then decreased.”
Claim · model-written summary
Dry matter accumulation first increased and then decreased as seeding rate rose.
- Taxon
- hybrid riceOryza sativat0
- Treatment
- seeding ratee0
- Outcome
- accumulation of dry mattere0
- Direction
- initially increased and then decreasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Optimal seeding rate enhances seedling quality, mechanical transplanting quality, and yield in hybrid rice”
e0“The growth volume of tillers, tillering spikelet rate, and harvest index of hybrid rice in the field showed an overall downward trend with increasing seeding rate, while the accumulation of dry matter initially increased and then decreased.”
Claim · model-written summary
Yield first increased and then decreased with seeding rate.
- Taxon
- hybrid riceOryza sativat0
- Treatment
- seeding ratee0
- Outcome
- yielde0
- Direction
- initial increase followed by a decreasee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Optimal seeding rate enhances seedling quality, mechanical transplanting quality, and yield in hybrid rice”
e0“The yield and economic benefits of hybrid rice grains showed an initial increase followed by a decrease with increasing seeding rate, with the highest yield and economic benefits achieved with the T2 treatment.”
Claim · model-written summary
T2 had the highest yield.
- Taxon
- hybrid riceOryza sativat0
- Treatment
- T2 treatmente0
- Outcome
- yielde0
- Direction
- higheste0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Optimal seeding rate enhances seedling quality, mechanical transplanting quality, and yield in hybrid rice”
e0“The yield and economic benefits of hybrid rice grains showed an initial increase followed by a decrease with increasing seeding rate, with the highest yield and economic benefits achieved with the T2 treatment.”
Claim · model-written summary
Economic benefits first increased and then decreased with seeding rate.
- Taxon
- hybrid riceOryza sativat0
- Treatment
- seeding ratee0
- Outcome
- economic benefitse0
- Direction
- initial increase followed by a decreasee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Optimal seeding rate enhances seedling quality, mechanical transplanting quality, and yield in hybrid rice”
e0“The yield and economic benefits of hybrid rice grains showed an initial increase followed by a decrease with increasing seeding rate, with the highest yield and economic benefits achieved with the T2 treatment.”
Claim · model-written summary
T2 had the highest economic benefits.
- Taxon
- hybrid riceOryza sativat0
- Treatment
- T2 treatmente0
- Outcome
- economic benefitse0
- Direction
- higheste0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Optimal seeding rate enhances seedling quality, mechanical transplanting quality, and yield in hybrid rice”
e0“The yield and economic benefits of hybrid rice grains showed an initial increase followed by a decrease with increasing seeding rate, with the highest yield and economic benefits achieved with the T2 treatment.”
Claim · model-written summary
The authors recommend T2 (60 g tray -1 ) for machine-transplanted hybrid rice.
- Taxon
- hybrid riceOryza sativat0
- Outcome
- appropriate seeding rate for machine-transplanted hybrid rice is T2 (60 g tray -1 )e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Optimal seeding rate enhances seedling quality, mechanical transplanting quality, and yield in hybrid rice”
e0“In conclusion, the appropriate seeding rate for machine-transplanted hybrid rice is T2 (60 g tray -1 ), which can maintain good seedling quality and improve transplanting quality, coordinate larger collective growth and appropriate harvest index, contributing to high yield and good economic benefits.”
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