Paper · 2007 · Korean Journal of Environmental Agriculture

Bolting Response of Various Lettuce Cultivars Affected by Seed Treatments

Hyeon-Jeong Hwang; Jung-Myung Lee; Jong-Moon An; et al.

8
claims
15
verbatim quotes
1
citations
3
research areas
✓
Open access

Abstract

본 실험은 상추의 춘파재배 시 종자의 건열처리 및 저온 처리에 따른 상추품종의 반응을 조사하고자 수행하였다. 추대반응은 저온처리, 무처리 및 건열처리 순으로 빨랐다. 초장은 저온처리에 의해 5-10 cm 가량 더 커졌으나 건열처리는 몇몇 품종의 경우 오히려 생육을 억제하였다. 건열처리와 저온처리의 차이는 정식 후 시간이 경과함에 따라 점차 상쇄되었다. 생체중은 모든 처리구간의 차이가 뚜렷하지 않았다. 'Red Gyeolku'는 매우 빠른 추대성을 나타내었으며 특히 저온처리에 의해 초장의 생육이 촉진되었다. 그러나 'Cheongchima'는 다양한 종자처리 이후에도 추대율이 높지않아 만추대성 품종으로 여겨졌다. A series of experiments were performed to evaluate effects of lettuce seed treatment with low temperature and dry heat treatment (DHT) on bolting response in the case of spring cultivation. During spring production in greenhouse, bolting response of the plants produced from the treated seeds was faster in the order of low temperature treatment, control and DHT. Plant height was increased 5-10 cm higher by low temperature treatment, but plant growth of some cultivars was inhibited by DHT. Difference on lettuce plant growth between low temperature treatment and DHT was gradually diminished with the lapse of time after transplanting. Fresh weight of plant was not significantly different among all treatments. 'Red Gyeolku' showed very early bolting response and plant height was significantly promoted by low temperature treatment. However, 'Cheongchima' showed low bolting percentage after various seed treatments, so it is considered late-bolting cultivar.

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Claims 8

Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Lettuce bolting was fastest after low temperature treatment, then control, then dry heat.

Taxon
LettuceLactuca sativat0
Treatment
low temperature treatmente0
Outcome
bolting responsee0
Direction
fastere0
Comparator
control and DHTe0
Setting
greenhousee0

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Lactuca sativa
Lactuca sativa · Taxonen:User:Geographer · CC BY 1.0 · Wikimedia Commons ↗

Verbatim

e0

“During spring production in greenhouse, bolting response of the plants produced from the treated seeds was faster in the order of low temperature treatment, control and DHT.”

✓ located verbatim in the source · abstract, characters 535–708 · show in text ↑
t0

“Lettuce Cultivars”

✓ located verbatim in the source · title, characters 28–45 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Low temperature seed treatment increased lettuce plant height by 5-10 cm.

Taxon
LettuceLactuca sativat0
Treatment
low temperature treatmente0
Outcome
Plant heighte0
Direction
increasede0
Value
5-10 cme0

Not reportedComparator

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Lactuca sativa
Lactuca sativa · Taxonen:User:Geographer · CC BY 1.0 · Wikimedia Commons ↗

Verbatim

e0

“Plant height was increased 5-10 cm higher by low temperature treatment”

✓ located verbatim in the source · abstract, characters 709–779 · show in text ↑
t0

“Lettuce Cultivars”

✓ located verbatim in the source · title, characters 28–45 · show in text ↑
Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

Dry heat treatment inhibited growth in some lettuce cultivars.

Taxon
LettuceLactuca sativat0
Treatment
DHTe0
Outcome
plant growthe0
Direction
inhibitede0
Qualifier
some cultivarse0

Not reportedComparator

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Lactuca sativa
Lactuca sativa · Taxonen:User:Geographer · CC BY 1.0 · Wikimedia Commons ↗

Verbatim

e0

“plant growth of some cultivars was inhibited by DHT”

✓ located verbatim in the source · abstract, characters 785–836 · show in text ↑
t0

“Lettuce Cultivars”

✓ located verbatim in the source · title, characters 28–45 · show in text ↑
Associationobservedoriginal resultpositivemeasured

Claim · model-written summary

The lettuce growth difference between low temperature and dry heat treatments diminished after transplanting.

Taxon
lettuceLactuca sativae0
Treatment
low temperature treatment and DHTe0
Outcome
Difference on lettuce plant growthe0
Direction
diminishede0
Qualifier
after transplantinge0

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Lactuca sativa
Lactuca sativa · Taxonen:User:Geographer · CC BY 1.0 · Wikimedia Commons ↗

Verbatim

e0

“Difference on lettuce plant growth between low temperature treatment and DHT was gradually diminished with the lapse of time after transplanting.”

✓ located verbatim in the source · abstract, characters 838–983 · show in text ↑
Intervention effectobservedoriginal resultno effectnot significant (as stated)measured

Claim · model-written summary

Lettuce fresh weight did not differ significantly among treatments.

Taxon
LettuceLactuca sativat0
Treatment
all treatmentse0
Outcome
Fresh weight of plante0
Direction
not significantly differente0

Not reportedComparator

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Lactuca sativa
Lactuca sativa · Taxonen:User:Geographer · CC BY 1.0 · Wikimedia Commons ↗

Verbatim

e0

“Fresh weight of plant was not significantly different among all treatments.”

✓ located verbatim in the source · abstract, characters 984–1059 · show in text ↑
t0

“Lettuce Cultivars”

✓ located verbatim in the source · title, characters 28–45 · show in text ↑
Observationobservedoriginal resultpositivemeasured

Claim · model-written summary

Red Gyeolku lettuce bolted very early.

Taxon
LettuceLactuca sativat0
Material
'Red Gyeolku'e0
Outcome
very early bolting responsee0

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Lactuca sativa
Lactuca sativa · Taxonen:User:Geographer · CC BY 1.0 · Wikimedia Commons ↗

Verbatim

e0

“'Red Gyeolku' showed very early bolting response”

✓ located verbatim in the source · abstract, characters 1060–1108 · show in text ↑
t0

“Lettuce Cultivars”

✓ located verbatim in the source · title, characters 28–45 · show in text ↑
Intervention effectobservedoriginal resultpositivesignificant (as stated)measured

Claim · model-written summary

Low temperature seed treatment significantly promoted Red Gyeolku plant height.

Taxon
LettuceLactuca sativat0
Material
'Red Gyeolku'e0
Treatment
low temperature treatmente0
Outcome
plant heighte0
Direction
promotede0

Not reportedComparator

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Lactuca sativa
Lactuca sativa · Taxonen:User:Geographer · CC BY 1.0 · Wikimedia Commons ↗

Verbatim

e0

“'Red Gyeolku' showed very early bolting response and plant height was significantly promoted by low temperature treatment.”

✓ located verbatim in the source · abstract, characters 1060–1182 · show in text ↑
t0

“Lettuce Cultivars”

✓ located verbatim in the source · title, characters 28–45 · show in text ↑
Observationobservedoriginal resultpositivemeasured

Claim · model-written summary

Cheongchima lettuce had a low bolting percentage after seed treatments and was considered late bolting.

Taxon
LettuceLactuca sativat0
Material
'Cheongchima'e0
Outcome
low bolting percentagee0
Qualifier
after various seed treatmentse0

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Lactuca sativa
Lactuca sativa · Taxonen:User:Geographer · CC BY 1.0 · Wikimedia Commons ↗

Verbatim

e0

“'Cheongchima' showed low bolting percentage after various seed treatments, so it is considered late-bolting cultivar.”

✓ located verbatim in the source · abstract, characters 1192–1309 · show in text ↑
t0

“Lettuce Cultivars”

✓ located verbatim in the source · title, characters 28–45 · show in text ↑

cold · growth · Lactuca sativa (garden lettuce)Positive and negative results

6 papers: 3 positive, 3 negative or no effect

2 papers in the same direction as this paper · 3 in the opposite direction

  1. negative
  2. negative
  3. no effect

2 papers more in this group

See all 6 papers →

heat · growth · Lactuca sativa (garden lettuce)Positive and negative results

17 papers: 7 positive, 10 negative or no effect

9 papers in the same direction as this paper · 7 in the opposite direction

  1. positive
  2. positive
  3. positive

13 papers more in this group

See all 17 papers →

cold · phenology · Lactuca sativa (garden lettuce)Results agree

2 papers: 2 positive, 0 negative or no effect

1 paper in the same direction as this paper

  1. positive
See all 2 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.