Abstract
ABSTRACT: The present research work was undertaken to find out the phytotoxic effects of different concentrations of aqueous extracts of leaves, stems and root of milkweed (Calotropis procera) in the Agronomic Research Area of Department of Agronomy, Faculty of Agriculture, Gomal University, Dera Ismail Khan, Khyber Pakhtunkhwa (KPK), Pakistan during 2013-14 and 2014-15. The treatments consisted of different concentrations of aqueous leaf, stem and root extracts (10, 20, 30 and 40%) of milkweed, which were compared with tap water (control). The results showed that the reduction of all studied parameters, including weeds, growth and yield of wheat was proportional to the concentration of aqueous extracts of milkweed in use. The level of inhibition was concentration-dependent as inhibition increased with an increase in the concentration of aqueous extracts of all three plant parts of milkweed. Therefore, application of maximum concentration (40%) of aqueous leaf, stem and root extracts correspondingly reduced all the studied parameters. On the basis of the findings, it is concluded that the Calotropis procera should be removed near the cultivating wheat fields because it contains some phytotoxic substances, which may be leached out by the roots and cause serious losses to the growers and crop species.
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Claims 4
Claim · model-written summary
Aqueous milkweed extracts reduced weeds in proportion to extract concentration compared with tap water.
Verbatim
e1“the reduction of all studied parameters, including weeds, growth and yield of wheat was proportional to the concentration of aqueous extracts of milkweed in use”
e2“which were compared with tap water (control)”
Claim · model-written summary
Aqueous milkweed extracts reduced wheat growth and yield in proportion to extract concentration compared with tap water.
- Taxon
- wheat
Triticum aestivume1 - Treatment
- concentration of aqueous extracts of milkweede1
- Outcome
- growth and yield of wheate1
- Direction
- reductione1
- Qualifier
- proportional to the concentratione1
- Comparator
- tap watere2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“the reduction of all studied parameters, including weeds, growth and yield of wheat was proportional to the concentration of aqueous extracts of milkweed in use”
e2“which were compared with tap water (control)”
Claim · model-written summary
Inhibition by milkweed extracts increased with extract concentration for all three plant parts.
Verbatim
e3“The level of inhibition was concentration-dependent as inhibition increased with an increase in the concentration of aqueous extracts of all three plant parts of milkweed”
Claim · model-written summary
The authors recommend removing Calotropis procera from near cultivated wheat fields.
- Taxon
- Calotropis procera
.jpg?width=60)
Calotropis procerae4 - Outcome
- removed near the cultivating wheat fieldse4
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
.jpg?width=500)
Verbatim
e4“the Calotropis procera should be removed near the cultivating wheat fields”
The same questions in other papers
botanical · yield · Triticum aestivum (wheat)Positive and negative results
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- positive
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See all 140 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.