Abstract
Soybean rust caused by Phakopsora pachyrhizi (Syd.) Butler and Bisby occurs regularly and severely in restricted areas of Northern Karnataka causing yield loss upto 20–80 per cent. Therefore, estimation of crop loss is an important factor in determining the economic importance of the disease and to develop cost effective control measure. In this context, loss estimation trial on soybean rust was conducted in an endemic area (Ugarkhurd) during Kharif 1999 and 2000. Lower disease index (16.8 to 13.8) and (16.6 to 13.0) with increase in seed yield (78.2 - 75.9% and 81–85% was obtained in plots receiving three to six sprays of hexaconazole (0.1%) on a susceptible cv. JS-335 and two to six sprays of the same in moderately resistant cv. PK-1029, respectively. Maximum benefits and higher yield were obtained from the plots receiving three and two spray of hexaconazole in JS-335 (1:5.2) and PK-1029 (1:6.3), respectively. Therefore, the results of two years of field studies prove that in a susceptible cv. JS-335, three sprays of hexaconazole are sufficient to manage the rust and realise the higher economic yields while on moderately resistant cv. PK-1029, two sprays are enough to lower the disease severity and to obtain higher yields.
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Claims 9
Claim · model-written summary
Soybean rust causes yield loss up to 20–80 per cent in Northern Karnataka.
- Taxon
- Soybean
Glycine maxe0 - Interactor
- Phakopsora pachyrhiziPhakopsora pachyrhizie0pathogen
- Outcome
- yield losse0
- Value
- 20–80 per cente0
- Setting
- Northern Karnatakae0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Soybean rust caused by Phakopsora pachyrhizi (Syd.) Butler and Bisby occurs regularly and severely in restricted areas of Northern Karnataka causing yield loss upto 20–80 per cent.”
Claim · model-written summary
Three to six hexaconazole sprays lowered disease index in susceptible JS-335.
- Taxon
- SoybeanGlycine maxt0
- Material
- JS-335e0
- Treatment
- three to six sprays of hexaconazole (0.1%)e0
- Interactor
- Rustt0pathogen
- Outcome
- disease indexe0
- Direction
- Lowere0
- Value
- 16.8 to 13.8e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Lower disease index (16.8 to 13.8) and (16.6 to 13.0) with increase in seed yield (78.2 - 75.9% and 81–85% was obtained in plots receiving three to six sprays of hexaconazole (0.1%) on a susceptible cv. JS-335 and two to six sprays of the same in moderately resistant cv. PK-1029, respectively.”
t0“Soybean Rust”
Claim · model-written summary
Two to six hexaconazole sprays lowered disease index in PK-1029.
- Taxon
- SoybeanGlycine maxt0
- Material
- PK-1029e0
- Treatment
- two to six sprays of the samee0
- Interactor
- Rustt0pathogen
- Outcome
- disease indexe0
- Direction
- Lowere0
- Value
- 16.6 to 13.0e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Lower disease index (16.8 to 13.8) and (16.6 to 13.0) with increase in seed yield (78.2 - 75.9% and 81–85% was obtained in plots receiving three to six sprays of hexaconazole (0.1%) on a susceptible cv. JS-335 and two to six sprays of the same in moderately resistant cv. PK-1029, respectively.”
t0“Soybean Rust”
Claim · model-written summary
Hexaconazole increased seed yield by 78.2 - 75.9% in JS-335.
- Taxon
- SoybeanGlycine maxt0
- Material
- JS-335e0
- Treatment
- three to six sprays of hexaconazole (0.1%)e0
- Interactor
- Rustt0pathogen
- Outcome
- seed yielde0
- Direction
- increasee0
- Value
- 78.2 - 75.9%e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Lower disease index (16.8 to 13.8) and (16.6 to 13.0) with increase in seed yield (78.2 - 75.9% and 81–85% was obtained in plots receiving three to six sprays of hexaconazole (0.1%) on a susceptible cv. JS-335 and two to six sprays of the same in moderately resistant cv. PK-1029, respectively.”
t0“Soybean Rust”
Claim · model-written summary
Hexaconazole increased seed yield by 81–85% in PK-1029.
- Taxon
- SoybeanGlycine maxt0
- Material
- PK-1029e0
- Treatment
- two to six sprays of the samee0
- Interactor
- Rustt0pathogen
- Outcome
- seed yielde0
- Direction
- increasee0
- Value
- 81–85%e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Lower disease index (16.8 to 13.8) and (16.6 to 13.0) with increase in seed yield (78.2 - 75.9% and 81–85% was obtained in plots receiving three to six sprays of hexaconazole (0.1%) on a susceptible cv. JS-335 and two to six sprays of the same in moderately resistant cv. PK-1029, respectively.”
t0“Soybean Rust”
Claim · model-written summary
Three hexaconazole sprays gave maximum benefit and higher yield in JS-335, with a 1:5.2 benefit ratio.
- Taxon
- SoybeanGlycine maxt0
- Material
- JS-335e0
- Treatment
- three and two spray of hexaconazolee0
- Interactor
- Rustt0pathogen
- Outcome
- benefits and higher yielde0
- Direction
- Maximume0
- Value
- 1:5.2e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Maximum benefits and higher yield were obtained from the plots receiving three and two spray of hexaconazole in JS-335 (1:5.2) and PK-1029 (1:6.3), respectively.”
t0“Soybean Rust”
Claim · model-written summary
Two hexaconazole sprays gave maximum benefit and higher yield in PK-1029, with a 1:6.3 benefit ratio.
- Taxon
- SoybeanGlycine maxt0
- Material
- PK-1029e0
- Treatment
- two spray of hexaconazolee0
- Interactor
- Rustt0pathogen
- Outcome
- benefits and higher yielde0
- Direction
- Maximume0
- Value
- 1:6.3e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Maximum benefits and higher yield were obtained from the plots receiving three and two spray of hexaconazole in JS-335 (1:5.2) and PK-1029 (1:6.3), respectively.”
t0“Soybean Rust”
Claim · model-written summary
The authors recommend three hexaconazole sprays for susceptible JS-335 to manage rust and obtain higher economic yield.
- Taxon
- SoybeanGlycine maxt0
- Material
- JS-335e0
- Interactor
- Rustt0pathogen
- Outcome
- three sprays of hexaconazole are sufficient to manage the rust and realise the higher economic yieldse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“in a susceptible cv. JS-335, three sprays of hexaconazole are sufficient to manage the rust and realise the higher economic yields”
t0“Soybean Rust”
Claim · model-written summary
The authors recommend two hexaconazole sprays for PK-1029 to lower disease severity and increase yield.
- Taxon
- SoybeanGlycine maxt0
- Material
- PK-1029e0
- Interactor
- Rustt0pathogen
- Outcome
- two sprays are enough to lower the disease severity and to obtain higher yieldse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“on moderately resistant cv. PK-1029, two sprays are enough to lower the disease severity and to obtain higher yields”
t0“Soybean Rust”
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