Abstract
Abstract Allelopathic influences of aqueous extracts of congress grass ( Parthenium hysterophorus L.) were investigated on germination and seedling vigour of cereals (rice and wheat) and pulses (black gram and chick pea). The observations on germinations of crop seeds were recorded daily while linear growth of plumules and radicles were measured 2, 4 and 6 days after initiation of study. Aqueous extract of this weed exhibited allelopathic effects on germination and seedling vigour of both cereals and pulses. With increase in concentrations of aqueous extract there was decline in percentage of germination in both cereals and pulses but germination of pulses were more adversely affected than cereals. It was also observed that aerial portion of plant part was found to be more potent than sub‐aerial portion in reducing germination and length of roots and shoots of both cereals and pulses under test. The aqueous extract of 10 % concentration obtained from aerial/sub‐aerial portion of plant brought about maximum reduction in length of roots and shoots.
Abstract from the paper’s OpenAlex record, shown for indexing and research. Copyright remains with the authors or the publisher. Read at the source ↗
The text the model read, with the source record’s inline markup (italics, sub- and superscripts) rendered and its character entities decoded; quote offsets refer to the raw text.
Claims 6
Claim · model-written summary
Congress grass aqueous extract reduced germination as concentration increased in cereals.
- Taxon
- rice and wheat
Oryza sativa
Triticum aestivume1 - Treatment
- aqueous extracte0
- Interactor
- congress grasse1weed
- Outcome
- percentage of germinatione0
- Direction
- declinee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“With increase in concentrations of aqueous extract there was decline in percentage of germination in both cereals and pulses”
e1“congress grass ( Parthenium hysterophorus L.) were investigated on germination and seedling vigour of cereals (rice and wheat) and pulses (black gram and chick pea)”
Claim · model-written summary
Congress grass aqueous extract reduced germination as concentration increased in pulses.
- Taxon
- black gram and chick pea
Cicer arietinum
Vigna mungoe1 - Treatment
- aqueous extracte0
- Interactor
- congress grasse1weed
- Outcome
- percentage of germinatione0
- Direction
- declinee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“With increase in concentrations of aqueous extract there was decline in percentage of germination in both cereals and pulses”
e1“congress grass ( Parthenium hysterophorus L.) were investigated on germination and seedling vigour of cereals (rice and wheat) and pulses (black gram and chick pea)”
Claim · model-written summary
Pulse germination was more adversely affected than cereal germination.
- Taxon
- black gram and chick peaCicer arietinumVigna mungoe1
- Interactor
- congress grasse1weed
- Outcome
- germination of pulsese0
- Direction
- more adversely affectede0
- Comparator
- cerealse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“germination of pulses were more adversely affected than cereals”
e1“congress grass ( Parthenium hysterophorus L.) were investigated on germination and seedling vigour of cereals (rice and wheat) and pulses (black gram and chick pea)”
Claim · model-written summary
Aerial portions were more potent than sub-aerial portions at reducing crop germination.
- Taxon
- rice and wheatOryza sativaTriticum aestivume1
- Treatment
- aerial portione0
- Interactor
- congress grasse1weed
- Outcome
- germinatione0
- Direction
- reducinge0
- Comparator
- sub‐aerial portione0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“aerial portion of plant part was found to be more potent than sub‐aerial portion in reducing germination and length of roots and shoots of both cereals and pulses under test”
e1“congress grass ( Parthenium hysterophorus L.) were investigated on germination and seedling vigour of cereals (rice and wheat) and pulses (black gram and chick pea)”
Claim · model-written summary
Aerial portions were more potent than sub-aerial portions at reducing crop root and shoot lengths.
- Taxon
- black gram and chick peaCicer arietinumVigna mungoe1
- Treatment
- aerial portione0
- Interactor
- congress grasse1weed
- Outcome
- length of roots and shootse0
- Direction
- reducinge0
- Comparator
- sub‐aerial portione0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“aerial portion of plant part was found to be more potent than sub‐aerial portion in reducing germination and length of roots and shoots of both cereals and pulses under test”
e1“congress grass ( Parthenium hysterophorus L.) were investigated on germination and seedling vigour of cereals (rice and wheat) and pulses (black gram and chick pea)”
Claim · model-written summary
Ten percent aqueous extract from either plant portion maximally reduced crop root and shoot lengths.
- Taxon
- rice and wheatOryza sativaTriticum aestivume1
- Treatment
- aqueous extract of 10 % concentratione0
- Interactor
- congress grasse1weed
- Outcome
- length of roots and shootse0
- Direction
- maximum reductione0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The aqueous extract of 10 % concentration obtained from aerial/sub‐aerial portion of plant brought about maximum reduction in length of roots and shoots”
e1“congress grass ( Parthenium hysterophorus L.) were investigated on germination and seedling vigour of cereals (rice and wheat) and pulses (black gram and chick pea)”
The same questions in other papers
botanical · growth · Vigna mungo (black gram)Positive and negative results
10 papers in the same direction as this paper · 27 in the opposite direction
- positive
- positive
- positive
34 papers more in this group
See all 38 papers →botanical · growth · Cicer arietinum (chickpea)Positive and negative results
27 papers in the same direction as this paper · 44 in the opposite direction
- positive
- positive
- positive
68 papers more in this group
See all 72 papers →botanical · growth · Oryza sativa (rice)Positive and negative results
77 papers in the same direction as this paper · 133 in the opposite direction
- no effect
- negative
- positive
207 papers more in this group
See all 211 papers →botanical · growth · Triticum aestivum (wheat)Positive and negative results
228 papers in the same direction as this paper · 206 in the opposite direction
- positive
- negative
- negative
431 papers more in this group
See all 435 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.