Abstract
Rice yellow mottle virus (RYMV) is the most harmful virus that affects irrigated and lowland rice in Africa. The RBe24 isolate of the virus is the most pathogenic strain in Benin. A total of 79 genotypes including susceptible IR64 (Oryza sativa) and the resistant TOG5681 (O. glaberrima) as checks were screened for their reactions to RBe24 isolate of RYMV and the effects of silicon on the response of host plants to the virus investigated. The experiment was a three-factor factorial consisting of genotypes, inoculation level (inoculated vs. non-inoculated), and silicon dose (0, 5, and 10 g/plant) applied as CaSiO3 with two replications and carried out twice in the screen house. Significant differences were observed among the rice genotypes. Fifteen highly resistant and eight resistant genotypes were identified, and these were mainly O. glaberrima. Silicon application did not affect disease incidence and severity at 21 and 42 days after inoculation (DAI); it, however, significantly increased plant height of inoculated (3.6% for 5 g CaSiO3/plant and 6.3% for 10 g CaSiO3/plant) and non-inoculated (1.9% for 5 g CaSiO3/plant and 4.9% for 10 g CaSiO3/plant) plants at 42 DAI, with a reduction in the number of tillers (12.3% for both 5 and 10 g CaSiO3/plant) and leaves (26.8% for 5 g CaSiO3/plant and 28% for 10 g CaSiO3/plant) under both inoculation treatments. Our results confirm O. glaberrima germplasm as an important source of resistance to RYMV, and critical in developing a comprehensive strategy for the control of RYMV in West Africa.
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Claims 12
Claim · model-written summary
Significant differences in reaction were observed among the rice genotypes.
- Taxon
- rice
Oryza sativae2 - Outcome
- Significant differences were observed among the rice genotypese2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e2“Significant differences were observed among the rice genotypes”
Claim · model-written summary
Fifteen highly resistant and eight resistant genotypes were identified, mainly O. glaberrima, for reaction to RYMV RBe24.
- Taxon
- Oryza sativa and Oryza glaberrimaOryza sativa
Oryza glaberrimat0 - Material
- O. glaberrimae3
- Interactor
- RYMVe1pathogen
- Outcome
- resistant genotypese3
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Resistance of Oryza sativa and Oryza glaberrima Genotypes to RBe24 Isolate of Rice Yellow Mottle Virus”
e1“A total of 79 genotypes including susceptible IR64 (Oryza sativa) and the resistant TOG5681 (O. glaberrima) as checks were screened for their reactions to RBe24 isolate of RYMV”
e3“Fifteen highly resistant and eight resistant genotypes were identified, and these were mainly O. glaberrima”
Claim · model-written summary
Silicon application did not affect rice RYMV disease incidence or severity at 21 and 42 days after inoculation.
- Taxon
- Oryza sativa and Oryza glaberrimaOryza sativaOryza glaberrimat0
- Treatment
- Silicon applicatione4
- Outcome
- disease incidence and severitye4
- Direction
- did not affecte4
- Qualifier
- 21 and 42 days after inoculatione4
- Comparator
- 0e5
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Resistance of Oryza sativa and Oryza glaberrima Genotypes to RBe24 Isolate of Rice Yellow Mottle Virus”
e4“Silicon application did not affect disease incidence and severity at 21 and 42 days after inoculation (DAI)”
e5“silicon dose (0, 5, and 10 g/plant) applied as CaSiO3”
Claim · model-written summary
Silicon at 5 g CaSiO3/plant significantly increased plant height of inoculated plants by 3.6% at 42 DAI.
- Taxon
- Oryza sativa and Oryza glaberrimaOryza sativaOryza glaberrimat0
- Treatment
- 5 g CaSiO3/plante6
- Outcome
- plant heighte6
- Direction
- increasede6
- Value
- 3.6%e6
- Qualifier
- inoculatede6
- Comparator
- 0e5
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Resistance of Oryza sativa and Oryza glaberrima Genotypes to RBe24 Isolate of Rice Yellow Mottle Virus”
e6“it, however, significantly increased plant height of inoculated (3.6% for 5 g CaSiO3/plant and 6.3% for 10 g CaSiO3/plant) and non-inoculated (1.9% for 5 g CaSiO3/plant and 4.9% for 10 g CaSiO3/plant) plants at 42 DAI”
e5“silicon dose (0, 5, and 10 g/plant) applied as CaSiO3”
Claim · model-written summary
Silicon at 10 g CaSiO3/plant significantly increased plant height of inoculated plants by 6.3% at 42 DAI.
- Taxon
- Oryza sativa and Oryza glaberrimaOryza sativaOryza glaberrimat0
- Treatment
- 10 g CaSiO3/plante6
- Outcome
- plant heighte6
- Direction
- increasede6
- Value
- 6.3%e6
- Qualifier
- inoculatede6
- Comparator
- 0e5
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Resistance of Oryza sativa and Oryza glaberrima Genotypes to RBe24 Isolate of Rice Yellow Mottle Virus”
e6“it, however, significantly increased plant height of inoculated (3.6% for 5 g CaSiO3/plant and 6.3% for 10 g CaSiO3/plant) and non-inoculated (1.9% for 5 g CaSiO3/plant and 4.9% for 10 g CaSiO3/plant) plants at 42 DAI”
e5“silicon dose (0, 5, and 10 g/plant) applied as CaSiO3”
Claim · model-written summary
Silicon at 5 g CaSiO3/plant significantly increased plant height of non-inoculated plants by 1.9% at 42 DAI.
- Taxon
- Oryza sativa and Oryza glaberrimaOryza sativaOryza glaberrimat0
- Treatment
- 5 g CaSiO3/plante6
- Outcome
- plant heighte6
- Direction
- increasede6
- Value
- 1.9%e6
- Qualifier
- non-inoculatede6
- Comparator
- 0e5
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Resistance of Oryza sativa and Oryza glaberrima Genotypes to RBe24 Isolate of Rice Yellow Mottle Virus”
e6“it, however, significantly increased plant height of inoculated (3.6% for 5 g CaSiO3/plant and 6.3% for 10 g CaSiO3/plant) and non-inoculated (1.9% for 5 g CaSiO3/plant and 4.9% for 10 g CaSiO3/plant) plants at 42 DAI”
e5“silicon dose (0, 5, and 10 g/plant) applied as CaSiO3”
Claim · model-written summary
Silicon at 10 g CaSiO3/plant significantly increased plant height of non-inoculated plants by 4.9% at 42 DAI.
- Taxon
- Oryza sativa and Oryza glaberrimaOryza sativaOryza glaberrimat0
- Treatment
- 10 g CaSiO3/plante6
- Outcome
- plant heighte6
- Direction
- increasede6
- Value
- 4.9%e6
- Qualifier
- non-inoculatede6
- Comparator
- 0e5
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Resistance of Oryza sativa and Oryza glaberrima Genotypes to RBe24 Isolate of Rice Yellow Mottle Virus”
e6“it, however, significantly increased plant height of inoculated (3.6% for 5 g CaSiO3/plant and 6.3% for 10 g CaSiO3/plant) and non-inoculated (1.9% for 5 g CaSiO3/plant and 4.9% for 10 g CaSiO3/plant) plants at 42 DAI”
e5“silicon dose (0, 5, and 10 g/plant) applied as CaSiO3”
Claim · model-written summary
Silicon at 5 and 10 g CaSiO3/plant reduced tiller number by 12.3% under both inoculation treatments.
- Taxon
- Oryza sativa and Oryza glaberrimaOryza sativaOryza glaberrimat0
- Treatment
- 5 and 10 g CaSiO3/plante7
- Outcome
- number of tillerse7
- Direction
- reductione7
- Value
- 12.3%e7
- Qualifier
- under both inoculation treatmentse7
- Comparator
- 0e5
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Resistance of Oryza sativa and Oryza glaberrima Genotypes to RBe24 Isolate of Rice Yellow Mottle Virus”
e7“with a reduction in the number of tillers (12.3% for both 5 and 10 g CaSiO3/plant) and leaves (26.8% for 5 g CaSiO3/plant and 28% for 10 g CaSiO3/plant) under both inoculation treatments”
e5“silicon dose (0, 5, and 10 g/plant) applied as CaSiO3”
Claim · model-written summary
Silicon at 5 g CaSiO3/plant reduced leaf number by 26.8% under both inoculation treatments.
- Taxon
- Oryza sativa and Oryza glaberrimaOryza sativaOryza glaberrimat0
- Treatment
- 5 g CaSiO3/plante7
- Outcome
- leavese7
- Direction
- reductione7
- Value
- 26.8%e7
- Qualifier
- under both inoculation treatmentse7
- Comparator
- 0e5
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Resistance of Oryza sativa and Oryza glaberrima Genotypes to RBe24 Isolate of Rice Yellow Mottle Virus”
e7“with a reduction in the number of tillers (12.3% for both 5 and 10 g CaSiO3/plant) and leaves (26.8% for 5 g CaSiO3/plant and 28% for 10 g CaSiO3/plant) under both inoculation treatments”
e5“silicon dose (0, 5, and 10 g/plant) applied as CaSiO3”
Claim · model-written summary
Silicon at 10 g CaSiO3/plant reduced leaf number by 28% under both inoculation treatments.
- Taxon
- Oryza sativa and Oryza glaberrimaOryza sativaOryza glaberrimat0
- Treatment
- 10 g CaSiO3/plante7
- Outcome
- leavese7
- Direction
- reductione7
- Value
- 28%e7
- Qualifier
- under both inoculation treatmentse7
- Comparator
- 0e5
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Resistance of Oryza sativa and Oryza glaberrima Genotypes to RBe24 Isolate of Rice Yellow Mottle Virus”
e7“with a reduction in the number of tillers (12.3% for both 5 and 10 g CaSiO3/plant) and leaves (26.8% for 5 g CaSiO3/plant and 28% for 10 g CaSiO3/plant) under both inoculation treatments”
e5“silicon dose (0, 5, and 10 g/plant) applied as CaSiO3”
Claim · model-written summary
O. glaberrima germplasm is an important source of resistance to RYMV.
- Taxon
- O. glaberrimaOryza glaberrimae0
- Interactor
- RYMVe0pathogen
- Outcome
- important source of resistancee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Our results confirm O. glaberrima germplasm as an important source of resistance to RYMV, and critical in developing a comprehensive strategy for the control of RYMV in West Africa”
Claim · model-written summary
Developing a comprehensive strategy for control of RYMV in West Africa is critical, based on the O. glaberrima resistance.
- Taxon
- O. glaberrimaOryza glaberrimae0
- Outcome
- comprehensive strategy for the control of RYMV in West Africae0
- Setting
- West Africae0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Our results confirm O. glaberrima germplasm as an important source of resistance to RYMV, and critical in developing a comprehensive strategy for the control of RYMV in West Africa”
The same questions in other papers
silicon atom · disease · Oryza sativa (rice)Positive and negative results
4 papers in the same direction as this paper · 69 reporting no difference from an alternative
- positive
- positive
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