Abstract
돼지풀의 추출물에 의한 잡초의 발아와 토양혼입에 따른 작물 및 잡초의 초기생육을 조사하였다. 돼지풀의 잎 추출물은 줄기 및 뿌리 추출물보다 잡초의 발아를 억제시켰으며, 5%농도에서 돌피, 바랭이 및 금방동사니의 발아율은 각각 23.0, 19.5 및 9.2%로 대조구와 비교하여 각각 68.3, 74.7 및 87.3% 억제되었다. 이러한 경향은 돼지풀의 혼입에 의한 작물과 잡초의 출아율에서도 비슷하게 나타났는데 출아 억제효과는 돌피보다 바랭이와 금방동사니에서 보다 높은 것으로 나타났다. 그러나 돼지풀의 혼입은 콩과 옥수수의 출아에 영향을 미치지 않았다. 돼지풀의 잎 혼입량이 5%까지 증가함에 따라 돌피, 바랭이, 금방동사니의 초장은 대조구와 비교하여 각각 48, 63 및 66% 억제되었다. 돼지풀 혼입에 따른 잡초의 생육으로 돌피, 바랭이 및 금방동사니의 건물중은 대조구와 비교하여 각각 72, 78 및 71% 억제되었다. Competitive ability, allelopathy, made the common ragweed (Ambrosia artemisiifolia var. elatior ) one of the most dangerous weeds in Korea. The aim of this research was to evaluate the role of common ragweed as test species under laboratory bioassay and glasshouse conditions. Inhibition effect of the leaf extract was higher than that of stem and root parts extracts on germination and seedling growth of weeds. The 5% concentration of leaf extract of common ragweed inhibited the germination rate of Echinochloa crus-galli, Digitaria sanguinalis and Cyperus microiria by 68.3, 74.6 and 87.3%, respectively, as compared to the control. Generally, increasing incorporation concentration inhibited seedling growth of weeds. Incorporation of 5% common ragweed residue significantly reduced the plant length of E. crus-galli, D. sanguinalis and C. microiria by 48, 63 and 68%, respectively, as compared to the control. Also, the values of dry weight were 72, 78 and 71%, respectively. Contrarily, the emergence rate of soybean and corn was not affected by the incorporation of 5% concentration of common ragweed residue. However, the dry weight was inhibited by 37 and 28%, respectively. These results suggest that common ragweed had the ability to control some weed species using toxic compounds like natural herbicide.
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Claims 16
Claim · model-written summary
Ragweed leaf extract inhibited weed germination and seedling growth more than stem or root extracts.
- Taxon
- common ragweed
Ambrosia artemisiifoliat0 - Treatment
- leaf extracte0
- Outcome
- germination and seedling growth of weedse0
- Direction
- highere0
- Comparator
- stem and root parts extractse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Inhibition effect of the leaf extract was higher than that of stem and root parts extracts on germination and seedling growth of weeds.”
t0“Common Ragweed”
Claim · model-written summary
5% ragweed leaf extract inhibited germination of Echinochloa crus-galli by 68.3 compared with control.
- Taxon
- Echinochloa crus-galli
Echinochloa crus-gallie0 - Treatment
- 5% concentration of leaf extract of common ragweede0
- Interactor
- common ragweedAmbrosia artemisiifoliae0weed
- Outcome
- germination rate of Echinochloa crus-gallie0
- Direction
- inhibitede0
- Value
- 68.3e0
- Comparator
- controle0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The 5% concentration of leaf extract of common ragweed inhibited the germination rate of Echinochloa crus-galli, Digitaria sanguinalis and Cyperus microiria by 68.3, 74.6 and 87.3%, respectively, as compared to the control.”
Claim · model-written summary
5% ragweed leaf extract inhibited germination of Digitaria sanguinalis by 74.6 compared with control.
- Taxon
- Digitaria sanguinalis
.jpg?width=60)
Digitaria sanguinalise0 - Treatment
- 5% concentration of leaf extract of common ragweede0
- Interactor
- common ragweedAmbrosia artemisiifoliae0weed
- Outcome
- germination ratee0
- Direction
- inhibitede0
- Value
- 74.6e0
- Comparator
- controle0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
.jpg?width=500)
Verbatim
e0“The 5% concentration of leaf extract of common ragweed inhibited the germination rate of Echinochloa crus-galli, Digitaria sanguinalis and Cyperus microiria by 68.3, 74.6 and 87.3%, respectively, as compared to the control.”
Claim · model-written summary
5% ragweed leaf extract inhibited germination of Cyperus microiria by 87.3% compared with control.
- Taxon
- Cyperus microiria
Cyperus microiriae0 - Treatment
- 5% concentration of leaf extract of common ragweede0
- Interactor
- common ragweedAmbrosia artemisiifoliae0weed
- Outcome
- germination ratee0
- Direction
- inhibitede0
- Value
- 87.3%e0
- Comparator
- controle0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The 5% concentration of leaf extract of common ragweed inhibited the germination rate of Echinochloa crus-galli, Digitaria sanguinalis and Cyperus microiria by 68.3, 74.6 and 87.3%, respectively, as compared to the control.”
Claim · model-written summary
Increasing ragweed incorporation inhibited weed seedling growth.
- Taxon
- common ragweedAmbrosia artemisiifoliat0
- Treatment
- increasing incorporation concentratione0
- Outcome
- seedling growth of weedse0
- Direction
- inhibitede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Generally, increasing incorporation concentration inhibited seedling growth of weeds.”
t0“Common Ragweed”
Claim · model-written summary
5% ragweed residue reduced plant length of E. crus-galli by 48.
- Taxon
- E. crus-galliEchinochloa crus-gallie0
- Treatment
- 5% common ragweed residuee0
- Interactor
- common ragweedAmbrosia artemisiifoliae0weed
- Outcome
- plant lengthe0
- Direction
- reducede0
- Value
- 48e0
- Comparator
- controle0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Incorporation of 5% common ragweed residue significantly reduced the plant length of E. crus-galli, D. sanguinalis and C. microiria by 48, 63 and 68%, respectively, as compared to the control.”
Claim · model-written summary
5% ragweed residue reduced plant length of D. sanguinalis by 63.
- Taxon
- D. sanguinalisDigitaria sanguinalise0
- Treatment
- 5% common ragweed residuee0
- Interactor
- common ragweedAmbrosia artemisiifoliae0weed
- Outcome
- plant lengthe0
- Direction
- reducede0
- Value
- 63e0
- Comparator
- controle0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Incorporation of 5% common ragweed residue significantly reduced the plant length of E. crus-galli, D. sanguinalis and C. microiria by 48, 63 and 68%, respectively, as compared to the control.”
Claim · model-written summary
5% ragweed residue reduced plant length of C. microiria by 68%.
- Taxon
- C. microiriaCyperus microiriae0
- Treatment
- 5% common ragweed residuee0
- Interactor
- common ragweedAmbrosia artemisiifoliae0weed
- Outcome
- plant lengthe0
- Direction
- reducede0
- Value
- 68%e0
- Comparator
- controle0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Incorporation of 5% common ragweed residue significantly reduced the plant length of E. crus-galli, D. sanguinalis and C. microiria by 48, 63 and 68%, respectively, as compared to the control.”
Claim · model-written summary
Ragweed residue reduced dry weight of Crops by 72.
Not reportedComparatorDirection
Verbatim
e0“Also, the values of dry weight were 72, 78 and 71%, respectively.”
t0“Common Ragweed (Ambrosia artemisifolia var. elatior) on the Germination and Seedling Growth of Crops and Weeds”
Claim · model-written summary
Ragweed residue reduced dry weight of Weeds by 78.
Not reportedComparatorDirection
Verbatim
e0“Also, the values of dry weight were 72, 78 and 71%, respectively.”
t0“Common Ragweed (Ambrosia artemisifolia var. elatior) on the Germination and Seedling Growth of Crops and Weeds”
Claim · model-written summary
Ragweed residue reduced dry weight of Common Ragweed by 71%.
- Taxon
- Common RagweedAmbrosia artemisiifoliat0
- Treatment
- common ragweedt0
- Outcome
- dry weighte0
- Value
- 71%e0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Also, the values of dry weight were 72, 78 and 71%, respectively.”
t0“Common Ragweed (Ambrosia artemisifolia var. elatior) on the Germination and Seedling Growth of Crops and Weeds”
Claim · model-written summary
Ragweed residue did not affect soybean emergence.
- Taxon
- soybean
Glycine maxe0 - Treatment
- 5% concentration of common ragweed residuee0
- Interactor
- common ragweedAmbrosia artemisiifoliae0weed
- Outcome
- emergence ratee0
- Direction
- not affectede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the emergence rate of soybean and corn was not affected by the incorporation of 5% concentration of common ragweed residue.”
Claim · model-written summary
Ragweed residue did not affect corn emergence.
- Taxon
- corn
Zea mays subsp. mayse0 - Treatment
- 5% concentration of common ragweed residuee0
- Interactor
- common ragweedAmbrosia artemisiifoliae0weed
- Outcome
- emergence ratee0
- Direction
- not affectede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the emergence rate of soybean and corn was not affected by the incorporation of 5% concentration of common ragweed residue.”
Claim · model-written summary
Ragweed residue inhibited soybean dry weight by 37%.
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“However, the dry weight was inhibited by 37 and 28%, respectively.”
t0“Common Ragweed”
e1“the emergence rate of soybean and corn was not affected by the incorporation of 5% concentration of common ragweed residue.”
Claim · model-written summary
Ragweed residue inhibited corn dry weight by 28%.
Not reportedComparator
Verbatim
e0“However, the dry weight was inhibited by 37 and 28%, respectively.”
t0“Common Ragweed (Ambrosia artemisifolia var. elatior) on the Germination and Seedling Growth of Crops and Weeds”
Claim · model-written summary
The authors propose ragweed compounds for weed control.
- Taxon
- common ragweedAmbrosia artemisiifoliae0
- Interactor
- weed speciese0weed
- Outcome
- control some weed speciese0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“These results suggest that common ragweed had the ability to control some weed species using toxic compounds like natural herbicide.”
The same questions in other papers
Ambrosia artemisiifolia · growth · Zea mays (maize)Positive and negative results
1 in the opposite direction
- positive
Ambrosia artemisiifolia · growth · Glycine max (soybean)Results agree
1 paper in the same direction as this paper
- no effect
botanical · growth · Digitaria sanguinalisPositive and negative results
3 papers in the same direction as this paper · 2 in the opposite direction
- negative
- negative
- positive
2 papers more in this group
See all 6 papers →botanical · growth · Echinochloa crus-galli (barnyard grass)Positive and negative results
44 papers in the same direction as this paper · 14 in the opposite direction
- negative
- negative
- negative
55 papers more in this group
See all 59 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.