The Experts below are selected from a list of 306 Experts worldwide ranked by ideXlab platform
Alison K. Lees - One of the best experts on this subject based on the ideXlab platform.
-
relationship between spongospora subterranea f sp subterranea soil Inoculum level host resistance and powdery scab on potato tubers in the field
Plant Pathology, 2013Co-Authors: Jennifer L. Brierley, S J Wale, L. Sullivan, A. J. Hilton, D. T. Kiezebrink, Alison K. LeesAbstract:The relationship between initial soil Inoculum level of Spongospora subterranea f. sp. subterranea (Sss) and the incidence and severity of powdery scab on potato tubers at harvest was investigated. In all experiments soil Inoculum level of Sss (sporeballs ⁄g soil) was measured using a quantitative real-time PCR assay. Of 113 commercial potato fields across the UK, soil Inoculum was detected in 75%, ranging from 0 to 148 Sss sporeballs ⁄g soil. When arbitrary soil Inoculum threshold values of 0, 10 sporeballs ⁄g soil were set, it was observed that the number of progeny crops developing powdery scab increased with the level of Inoculum quantified in the field soil preplanting. In four field trials carried out to investigate the link between the amount of Inoculum added to the soil and disease development, disease incidence and severity on progeny tubers was found to be significantly (P <0 AE01) greater in plots with increasing levels of Inoculum incorporated. There was a cultivar effect in all years, with disease incidence and severity scores being significantly greater in cvs Agria and Estima than in Nicola (P <0 AE01).
-
Relationship between Spongospora subterranea f. sp. subterranea soil Inoculum level, host resistance and powdery scab on potato tubers in the field
Plant Pathology, 2012Co-Authors: Jennifer L. Brierley, S J Wale, L. Sullivan, A. J. Hilton, D. T. Kiezebrink, Alison K. LeesAbstract:The relationship between initial soil Inoculum level of Spongospora subterranea f. sp. subterranea (Sss) and the incidence and severity of powdery scab on potato tubers at harvest was investigated. In all experiments soil Inoculum level of Sss (sporeballs ⁄g soil) was measured using a quantitative real-time PCR assay. Of 113 commercial potato fields across the UK, soil Inoculum was detected in 75%, ranging from 0 to 148 Sss sporeballs ⁄g soil. When arbitrary soil Inoculum threshold values of 0, 10 sporeballs ⁄g soil were set, it was observed that the number of progeny crops developing powdery scab increased with the level of Inoculum quantified in the field soil preplanting. In four field trials carried out to investigate the link between the amount of Inoculum added to the soil and disease development, disease incidence and severity on progeny tubers was found to be significantly (P
M. M. Alves - One of the best experts on this subject based on the ideXlab platform.
-
Influence of Inoculum activity on the bio-methanization of a kitchen waste under different waste/Inoculum ratios
Process Biochemistry, 2004Co-Authors: L. Neves, Rosario Oliveira, M. M. AlvesAbstract:Abstract The use of a granular Inoculum prevented acidification during the anaerobic batch biodegradation of a kitchen waste for waste/Inoculum ratios in the range of 0.5–2.3 g VS/g VS, when the alkalinity/COD ratio was 37 mg NaHCO3/g COD. In similar experiments but using a suspended sludge with a significantly lower activity, the methane production rates and the biodegradability were significantly lower and the pH decreased below 5.5 at the waste/Inoculum ratio of 2.3 g VS/g VS. When the added alkalinity was decreased to 2 mg NaHCO3/g COD, the ratio waste/Inoculum was clearly more important than the Inoculum activity, since, irrespective of the sludge used, acidification occurred at waste/Inoculum ratios higher than 0.5 g VS/g VS. The advantage of using granular sludge was further investigated in order to define reasonable condition of waste/Inoculum ratio and added alkalinity that could be applied in practice. For a waste/Inoculum ratio of 1.35, there were no significant differences between the results obtained for the biodegradability and maximum methane production rate (MMPR), when the alkalinity decreased from 44 to 22 mg NaHCO3/g COD.
-
influence of Inoculum activity on the bio methanization of a kitchen waste under different waste Inoculum ratios
Process Biochemistry, 2004Co-Authors: L. Neves, Rosario Oliveira, M. M. AlvesAbstract:Abstract The use of a granular Inoculum prevented acidification during the anaerobic batch biodegradation of a kitchen waste for waste/Inoculum ratios in the range of 0.5–2.3 g VS/g VS, when the alkalinity/COD ratio was 37 mg NaHCO3/g COD. In similar experiments but using a suspended sludge with a significantly lower activity, the methane production rates and the biodegradability were significantly lower and the pH decreased below 5.5 at the waste/Inoculum ratio of 2.3 g VS/g VS. When the added alkalinity was decreased to 2 mg NaHCO3/g COD, the ratio waste/Inoculum was clearly more important than the Inoculum activity, since, irrespective of the sludge used, acidification occurred at waste/Inoculum ratios higher than 0.5 g VS/g VS. The advantage of using granular sludge was further investigated in order to define reasonable condition of waste/Inoculum ratio and added alkalinity that could be applied in practice. For a waste/Inoculum ratio of 1.35, there were no significant differences between the results obtained for the biodegradability and maximum methane production rate (MMPR), when the alkalinity decreased from 44 to 22 mg NaHCO3/g COD.
-
Influence of Inoculum activity on the bio-methanization of a kitchen waste under different waste/Inoculum ratios
Process Biochemistry, 2004Co-Authors: L. Neves, R Oliveira, M. M. AlvesAbstract:The use of a granular Inoculum prevented acidification during the anaerobic batch biodegradation of a kitchen waste for waste/Inoculum ratios in the range of 0.5-2.3g VS/g VS, when the alkalinity/COD ratio was 37mg NaHCO3/g COD. In similar experiments but using a suspended sludge with a significantly lower activity, the methane production rates and the biodegradability were significantly lower and the pH decreased below 5.5 at the waste/Inoculum ratio of 2.3g VS/g VS. When the added alkalinity was decreased to 2mg NaHCO3/g COD, the ratio waste/Inoculum was clearly more important than the Inoculum activity, since, irrespective of the sludge used, acidification occurred at waste/Inoculum ratios higher than 0.5g VS/g VS. The advantage of using granular sludge was further investigated in order to define reasonable condition of waste/Inoculum ratio and added alkalinity that could be applied in practice. For a waste/Inoculum ratio of 1.35, there were no significant differences between the results obtained for the biodegradability and maximum methane production rate (MMPR), when the alkalinity decreased from 44 to 22mg NaHCO3/g COD. © 2003 Elsevier Ltd. All rights reserved.
Jennifer L. Brierley - One of the best experts on this subject based on the ideXlab platform.
-
relationship between spongospora subterranea f sp subterranea soil Inoculum level host resistance and powdery scab on potato tubers in the field
Plant Pathology, 2013Co-Authors: Jennifer L. Brierley, S J Wale, L. Sullivan, A. J. Hilton, D. T. Kiezebrink, Alison K. LeesAbstract:The relationship between initial soil Inoculum level of Spongospora subterranea f. sp. subterranea (Sss) and the incidence and severity of powdery scab on potato tubers at harvest was investigated. In all experiments soil Inoculum level of Sss (sporeballs ⁄g soil) was measured using a quantitative real-time PCR assay. Of 113 commercial potato fields across the UK, soil Inoculum was detected in 75%, ranging from 0 to 148 Sss sporeballs ⁄g soil. When arbitrary soil Inoculum threshold values of 0, 10 sporeballs ⁄g soil were set, it was observed that the number of progeny crops developing powdery scab increased with the level of Inoculum quantified in the field soil preplanting. In four field trials carried out to investigate the link between the amount of Inoculum added to the soil and disease development, disease incidence and severity on progeny tubers was found to be significantly (P <0 AE01) greater in plots with increasing levels of Inoculum incorporated. There was a cultivar effect in all years, with disease incidence and severity scores being significantly greater in cvs Agria and Estima than in Nicola (P <0 AE01).
-
Relationship between Spongospora subterranea f. sp. subterranea soil Inoculum level, host resistance and powdery scab on potato tubers in the field
Plant Pathology, 2012Co-Authors: Jennifer L. Brierley, S J Wale, L. Sullivan, A. J. Hilton, D. T. Kiezebrink, Alison K. LeesAbstract:The relationship between initial soil Inoculum level of Spongospora subterranea f. sp. subterranea (Sss) and the incidence and severity of powdery scab on potato tubers at harvest was investigated. In all experiments soil Inoculum level of Sss (sporeballs ⁄g soil) was measured using a quantitative real-time PCR assay. Of 113 commercial potato fields across the UK, soil Inoculum was detected in 75%, ranging from 0 to 148 Sss sporeballs ⁄g soil. When arbitrary soil Inoculum threshold values of 0, 10 sporeballs ⁄g soil were set, it was observed that the number of progeny crops developing powdery scab increased with the level of Inoculum quantified in the field soil preplanting. In four field trials carried out to investigate the link between the amount of Inoculum added to the soil and disease development, disease incidence and severity on progeny tubers was found to be significantly (P
L. Neves - One of the best experts on this subject based on the ideXlab platform.
-
Influence of Inoculum activity on the bio-methanization of a kitchen waste under different waste/Inoculum ratios
Process Biochemistry, 2004Co-Authors: L. Neves, Rosario Oliveira, M. M. AlvesAbstract:Abstract The use of a granular Inoculum prevented acidification during the anaerobic batch biodegradation of a kitchen waste for waste/Inoculum ratios in the range of 0.5–2.3 g VS/g VS, when the alkalinity/COD ratio was 37 mg NaHCO3/g COD. In similar experiments but using a suspended sludge with a significantly lower activity, the methane production rates and the biodegradability were significantly lower and the pH decreased below 5.5 at the waste/Inoculum ratio of 2.3 g VS/g VS. When the added alkalinity was decreased to 2 mg NaHCO3/g COD, the ratio waste/Inoculum was clearly more important than the Inoculum activity, since, irrespective of the sludge used, acidification occurred at waste/Inoculum ratios higher than 0.5 g VS/g VS. The advantage of using granular sludge was further investigated in order to define reasonable condition of waste/Inoculum ratio and added alkalinity that could be applied in practice. For a waste/Inoculum ratio of 1.35, there were no significant differences between the results obtained for the biodegradability and maximum methane production rate (MMPR), when the alkalinity decreased from 44 to 22 mg NaHCO3/g COD.
-
influence of Inoculum activity on the bio methanization of a kitchen waste under different waste Inoculum ratios
Process Biochemistry, 2004Co-Authors: L. Neves, Rosario Oliveira, M. M. AlvesAbstract:Abstract The use of a granular Inoculum prevented acidification during the anaerobic batch biodegradation of a kitchen waste for waste/Inoculum ratios in the range of 0.5–2.3 g VS/g VS, when the alkalinity/COD ratio was 37 mg NaHCO3/g COD. In similar experiments but using a suspended sludge with a significantly lower activity, the methane production rates and the biodegradability were significantly lower and the pH decreased below 5.5 at the waste/Inoculum ratio of 2.3 g VS/g VS. When the added alkalinity was decreased to 2 mg NaHCO3/g COD, the ratio waste/Inoculum was clearly more important than the Inoculum activity, since, irrespective of the sludge used, acidification occurred at waste/Inoculum ratios higher than 0.5 g VS/g VS. The advantage of using granular sludge was further investigated in order to define reasonable condition of waste/Inoculum ratio and added alkalinity that could be applied in practice. For a waste/Inoculum ratio of 1.35, there were no significant differences between the results obtained for the biodegradability and maximum methane production rate (MMPR), when the alkalinity decreased from 44 to 22 mg NaHCO3/g COD.
-
Influence of Inoculum activity on the bio-methanization of a kitchen waste under different waste/Inoculum ratios
Process Biochemistry, 2004Co-Authors: L. Neves, R Oliveira, M. M. AlvesAbstract:The use of a granular Inoculum prevented acidification during the anaerobic batch biodegradation of a kitchen waste for waste/Inoculum ratios in the range of 0.5-2.3g VS/g VS, when the alkalinity/COD ratio was 37mg NaHCO3/g COD. In similar experiments but using a suspended sludge with a significantly lower activity, the methane production rates and the biodegradability were significantly lower and the pH decreased below 5.5 at the waste/Inoculum ratio of 2.3g VS/g VS. When the added alkalinity was decreased to 2mg NaHCO3/g COD, the ratio waste/Inoculum was clearly more important than the Inoculum activity, since, irrespective of the sludge used, acidification occurred at waste/Inoculum ratios higher than 0.5g VS/g VS. The advantage of using granular sludge was further investigated in order to define reasonable condition of waste/Inoculum ratio and added alkalinity that could be applied in practice. For a waste/Inoculum ratio of 1.35, there were no significant differences between the results obtained for the biodegradability and maximum methane production rate (MMPR), when the alkalinity decreased from 44 to 22mg NaHCO3/g COD. © 2003 Elsevier Ltd. All rights reserved.
S J Wale - One of the best experts on this subject based on the ideXlab platform.
-
relationship between spongospora subterranea f sp subterranea soil Inoculum level host resistance and powdery scab on potato tubers in the field
Plant Pathology, 2013Co-Authors: Jennifer L. Brierley, S J Wale, L. Sullivan, A. J. Hilton, D. T. Kiezebrink, Alison K. LeesAbstract:The relationship between initial soil Inoculum level of Spongospora subterranea f. sp. subterranea (Sss) and the incidence and severity of powdery scab on potato tubers at harvest was investigated. In all experiments soil Inoculum level of Sss (sporeballs ⁄g soil) was measured using a quantitative real-time PCR assay. Of 113 commercial potato fields across the UK, soil Inoculum was detected in 75%, ranging from 0 to 148 Sss sporeballs ⁄g soil. When arbitrary soil Inoculum threshold values of 0, 10 sporeballs ⁄g soil were set, it was observed that the number of progeny crops developing powdery scab increased with the level of Inoculum quantified in the field soil preplanting. In four field trials carried out to investigate the link between the amount of Inoculum added to the soil and disease development, disease incidence and severity on progeny tubers was found to be significantly (P <0 AE01) greater in plots with increasing levels of Inoculum incorporated. There was a cultivar effect in all years, with disease incidence and severity scores being significantly greater in cvs Agria and Estima than in Nicola (P <0 AE01).
-
Relationship between Spongospora subterranea f. sp. subterranea soil Inoculum level, host resistance and powdery scab on potato tubers in the field
Plant Pathology, 2012Co-Authors: Jennifer L. Brierley, S J Wale, L. Sullivan, A. J. Hilton, D. T. Kiezebrink, Alison K. LeesAbstract:The relationship between initial soil Inoculum level of Spongospora subterranea f. sp. subterranea (Sss) and the incidence and severity of powdery scab on potato tubers at harvest was investigated. In all experiments soil Inoculum level of Sss (sporeballs ⁄g soil) was measured using a quantitative real-time PCR assay. Of 113 commercial potato fields across the UK, soil Inoculum was detected in 75%, ranging from 0 to 148 Sss sporeballs ⁄g soil. When arbitrary soil Inoculum threshold values of 0, 10 sporeballs ⁄g soil were set, it was observed that the number of progeny crops developing powdery scab increased with the level of Inoculum quantified in the field soil preplanting. In four field trials carried out to investigate the link between the amount of Inoculum added to the soil and disease development, disease incidence and severity on progeny tubers was found to be significantly (P
