Abstract
The allelopathic effects of aqueous extracts from sorghum stem and rice husks were examined on the germination and growth of maize. The extracts brought about considerable inhibitions in the germination of maize seeds and in the growth of radical and plumule. In both extracts, the degree of inhibition increased with the increase in the concentrations of the extracts thus suggesting that the effects of the extracts were concentration dependent. However, the results obtained also tend to suggest that the degree of retardation might be more pronounced in the extracts derived from the sorghum stem than those from the rice husks. In the sorghum extract-treated seeds, no growth of the plumule was obtained until the 72-hour period of the experiments whereas plumule growths were recorded at the lower extract concentrations of the rice-husk derived extracts. (Keywords: sorghum stem extract, rice husk extract, germination, corn, plant development, allelopathy, allelochemicals)
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Claims 5
Claim · model-written summary
Sorghum stem and rice husk extracts inhibited maize seed germination and radicle and plumule growth.
- Organ / stage
- seedse1
- Treatment
- aqueous extracts from sorghum stem and rice huskse0
- Outcome
- germination of maize seeds and in the growth of radical and plumulee1
- Direction
- inhibitionse1
Zea maysNot reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The allelopathic effects of aqueous extracts from sorghum stem and rice husks were examined on the germination and growth of maize”
e1“The extracts brought about considerable inhibitions in the germination of maize seeds and in the growth of radical and plumule”
Claim · model-written summary
Inhibition of maize germination and growth increased with extract concentration.
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The allelopathic effects of aqueous extracts from sorghum stem and rice husks were examined on the germination and growth of maize”
e2“the degree of inhibition increased with the increase in the concentrations of the extracts”
Claim · model-written summary
Sorghum stem extract may cause more pronounced growth retardation of maize than rice husk extract.
- Treatment
- extracts derived from the sorghum steme3
- Outcome
- degree of retardatione3
- Direction
- more pronouncede3
- Qualifier
- might bee3
- Comparator
- rice huskse3
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The allelopathic effects of aqueous extracts from sorghum stem and rice husks were examined on the germination and growth of maize”
e3“the degree of retardation might be more pronounced in the extracts derived from the sorghum stem than those from the rice husks”
Claim · model-written summary
In sorghum extract-treated maize seeds no plumule growth was obtained until 72 hours.
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The allelopathic effects of aqueous extracts from sorghum stem and rice husks were examined on the germination and growth of maize”
e4“In the sorghum extract-treated seeds, no growth of the plumule was obtained until the 72-hour period of the experiments”
Claim · model-written summary
Plumule growth was recorded at lower concentrations of rice husk extracts.
- Treatment
- rice-husk derived extractse5
- Outcome
- plumule growthse5
- Qualifier
- at the lower extract concentrationse5
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The allelopathic effects of aqueous extracts from sorghum stem and rice husks were examined on the germination and growth of maize”
e5“plumule growths were recorded at the lower extract concentrations of the rice-husk derived extracts”
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