Abstract
Rice blast disease, caused by a seed-borne fungus Pyricularia grisea, is an important and serious disease of rice (Oryza sativa L.) worldwide. The disease has been reported to cause yield losses of up to 40% in Tanzania. Studies were conducted to determine the effect of aqueous extracts of Aloe vera, Allium sativum, Annona muricata, Azadirachta indica, Bidens pilosa, Camellia sinensis, Chrysanthemum coccineum, processed Coffee arabica, Datura stramonium, Nicotiana tabacum and Zingiber officinalis for control of rice blast disease (Pyricularia grisea) in-vitro and in-vivo. The results indicate that processed C. arabica at 10% and 25% (v/v) had the highest (81.12%) and (89.40%) inhibitory effect, respectively, against P. grisea. Aqueous extract from N. tabacum at 10% concentration ranked third (80.35%) in inhibiting P. grisea. These were followed by extracts from 25% A. vera (79.45%) and 25% C. coccineum flower (78.83%). The results also indicate that, extracts from A. indica, A. vera, A. sativum, C. arabica, D. stramonium, C. sinensis, Z. officinalis and N. tabacum did not have any phytotoxic effect on seed germination, shoot height, root length, dry weight, seedling growth and seedling vigour index. These plant extracts can thus be used for rice seed treatment to manage rice blast disease.
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Claims 14
Claim · model-written summary
processed C. arabica at 10% inhibited P. grisea by 81.12%.
- Taxon
- rice
Oryza sativat0 - Treatment
- processed C. arabica at 10%e0
- Interactor
- P. grisea
Pyricularia griseae0pathogen - Outcome
- P. griseae0
- Direction
- higheste0
- Value
- 81.12%e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“processed C. arabica at 10% and 25% (v/v) had the highest (81.12%) and (89.40%) inhibitory effect, respectively, against P. grisea”
t0“Rice”
Claim · model-written summary
processed C. arabica at 10% and 25% (v/v) inhibited P. grisea by 89.40%.
- Taxon
- riceOryza sativat0
- Treatment
- processed C. arabica at 10% and 25% (v/v)e0
- Interactor
- P. griseaPyricularia griseae0pathogen
- Outcome
- P. griseae0
- Direction
- higheste0
- Value
- 89.40%e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“processed C. arabica at 10% and 25% (v/v) had the highest (81.12%) and (89.40%) inhibitory effect, respectively, against P. grisea”
t0“Rice”
Claim · model-written summary
N. tabacum at 10% inhibited P. grisea by 80.35%.
- Taxon
- riceOryza sativat0
- Treatment
- N. tabacum at 10%e0
- Interactor
- P. griseaPyricularia griseae0pathogen
- Outcome
- P. griseae0
- Direction
- inhibitinge0
- Value
- 80.35%e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Aqueous extract from N. tabacum at 10% concentration ranked third (80.35%) in inhibiting P. grisea”
t0“Rice”
Claim · model-written summary
25% A. vera inhibited P. grisea by 79.45%.
- Taxon
- riceOryza sativat0
- Treatment
- 25% A. verae0
- Interactor
- P. griseaPyricularia griseae1pathogene0
- Outcome
- P. griseae1
- Value
- 79.45%e0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“These were followed by extracts from 25% A. vera (79.45%) and 25% C. coccineum flower (78.83%)”
t0“Rice”
e1“processed C. arabica at 10% and 25% (v/v) had the highest (81.12%) and (89.40%) inhibitory effect, respectively, against P. grisea”
Claim · model-written summary
25% C. coccineum flower inhibited P. grisea by 78.83%.
- Taxon
- riceOryza sativat0
- Treatment
- 25% C. coccineum flowere0
- Interactor
- P. griseaPyricularia griseae1pathogene0
- Outcome
- P. griseae1
- Value
- 78.83%e0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“These were followed by extracts from 25% A. vera (79.45%) and 25% C. coccineum flower (78.83%)”
t0“Rice”
e1“processed C. arabica at 10% and 25% (v/v) had the highest (81.12%) and (89.40%) inhibitory effect, respectively, against P. grisea”
Claim · model-written summary
A. indica extract had no phytotoxic effect on rice seedling traits.
- Taxon
- riceOryza sativat0
- Treatment
- A. indicae0
- Outcome
- seed germination, shoot height, root length, dry weight, seedling growth and seedling vigour indexe0
- Direction
- did not have any phytotoxic effecte0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“extracts from A. indica, A. vera, A. sativum, C. arabica, D. stramonium, C. sinensis, Z. officinalis and N. tabacum did not have any phytotoxic effect on seed germination, shoot height, root length, dry weight, seedling growth and seedling vigour index”
t0“Rice”
Claim · model-written summary
A. vera extract had no phytotoxic effect on rice seedling traits.
- Taxon
- riceOryza sativat0
- Treatment
- A. verae0
- Outcome
- seed germination, shoot height, root length, dry weight, seedling growth and seedling vigour indexe0
- Direction
- did not have any phytotoxic effecte0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“extracts from A. indica, A. vera, A. sativum, C. arabica, D. stramonium, C. sinensis, Z. officinalis and N. tabacum did not have any phytotoxic effect on seed germination, shoot height, root length, dry weight, seedling growth and seedling vigour index”
t0“Rice”
Claim · model-written summary
A. sativum extract had no phytotoxic effect on rice seedling traits.
- Taxon
- riceOryza sativat0
- Treatment
- A. sativume0
- Outcome
- seed germination, shoot height, root length, dry weight, seedling growth and seedling vigour indexe0
- Direction
- did not have any phytotoxic effecte0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“extracts from A. indica, A. vera, A. sativum, C. arabica, D. stramonium, C. sinensis, Z. officinalis and N. tabacum did not have any phytotoxic effect on seed germination, shoot height, root length, dry weight, seedling growth and seedling vigour index”
t0“Rice”
Claim · model-written summary
C. arabica extract had no phytotoxic effect on rice seedling traits.
- Taxon
- riceOryza sativat0
- Treatment
- C. arabicae0
- Outcome
- seed germination, shoot height, root length, dry weight, seedling growth and seedling vigour indexe0
- Direction
- did not have any phytotoxic effecte0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“extracts from A. indica, A. vera, A. sativum, C. arabica, D. stramonium, C. sinensis, Z. officinalis and N. tabacum did not have any phytotoxic effect on seed germination, shoot height, root length, dry weight, seedling growth and seedling vigour index”
t0“Rice”
Claim · model-written summary
D. stramonium extract had no phytotoxic effect on rice seedling traits.
- Taxon
- riceOryza sativat0
- Treatment
- D. stramoniume0
- Outcome
- seed germination, shoot height, root length, dry weight, seedling growth and seedling vigour indexe0
- Direction
- did not have any phytotoxic effecte0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“extracts from A. indica, A. vera, A. sativum, C. arabica, D. stramonium, C. sinensis, Z. officinalis and N. tabacum did not have any phytotoxic effect on seed germination, shoot height, root length, dry weight, seedling growth and seedling vigour index”
t0“Rice”
Claim · model-written summary
C. sinensis extract had no phytotoxic effect on rice seedling traits.
- Taxon
- riceOryza sativat0
- Treatment
- C. sinensise0
- Outcome
- seed germination, shoot height, root length, dry weight, seedling growth and seedling vigour indexe0
- Direction
- did not have any phytotoxic effecte0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“extracts from A. indica, A. vera, A. sativum, C. arabica, D. stramonium, C. sinensis, Z. officinalis and N. tabacum did not have any phytotoxic effect on seed germination, shoot height, root length, dry weight, seedling growth and seedling vigour index”
t0“Rice”
Claim · model-written summary
Z. officinalis extract had no phytotoxic effect on rice seedling traits.
- Taxon
- riceOryza sativat0
- Treatment
- Z. officinalise0
- Outcome
- seed germination, shoot height, root length, dry weight, seedling growth and seedling vigour indexe0
- Direction
- did not have any phytotoxic effecte0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“extracts from A. indica, A. vera, A. sativum, C. arabica, D. stramonium, C. sinensis, Z. officinalis and N. tabacum did not have any phytotoxic effect on seed germination, shoot height, root length, dry weight, seedling growth and seedling vigour index”
t0“Rice”
Claim · model-written summary
N. tabacum extract had no phytotoxic effect on rice seedling traits.
- Taxon
- riceOryza sativat0
- Treatment
- N. tabacume0
- Outcome
- seed germination, shoot height, root length, dry weight, seedling growth and seedling vigour indexe0
- Direction
- did not have any phytotoxic effecte0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“extracts from A. indica, A. vera, A. sativum, C. arabica, D. stramonium, C. sinensis, Z. officinalis and N. tabacum did not have any phytotoxic effect on seed germination, shoot height, root length, dry weight, seedling growth and seedling vigour index”
t0“Rice”
Claim · model-written summary
The authors recommend these extracts for rice seed treatment against blast.
- Taxon
- riceOryza sativae0
- Outcome
- rice seed treatment to manage rice blast diseasee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“These plant extracts can thus be used for rice seed treatment to manage rice blast disease.”
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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.