Combined on-farm effect of plot size and sorghum genotype on sorghum panicle-feeding bug infestation in Mali
The reaction of four sorghum cultivars to panicle-feeding bugs was assessed in small (15 m2) and large (0.5-1.0 ha) plots for 2 years in three villages of the Kolokani region (Mali). The aim was to explain the somewhat contradictory earlier observations of pest infestation and damage in small experimental plots (on-station and on-farm) as well as in farmers' field surveys. Irrespective of the plot size, the local guinea sorghum cultivar Bibalawili was consistently the least infested and damaged, followed by bug-resistant compact-headed cv Malisor 84-7, whereas the improved caudatum cultivar Gadiabani, which had been disseminated for nearly a decade in the region, and the improved hybrid ICSH 89002, were the most heavily damaged. When located along the border of large plots of a susceptible cultivar, small plots of the four cultivars overall were less infested and damaged than when located along the border of plots of resistant cultivars. However, they were more infested and damaged when located in the centre of large plots of susceptible cultivars than when they were in the centre of resistant cultivar plots. In large plots, bug populations and damage decreased from the border to the centre. These results suggest that, in addition to the mere plot size, plant breeders should take the genotypic environment of their experimental plots into account, namely the vicinity of large plots of pest-susceptible or -resistant cultivars, and the position of the test plots (border or centre) relative to these large plots.
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Subjects: | H10 - Ravageurs des plantes, F30 - Génétique et amélioration des plantes, Sorghum bicolor, Miridae, résistance aux organismes nuisibles, relation hôte parasite, infestation, génotype, http://aims.fao.org/aos/agrovoc/c_7247, http://aims.fao.org/aos/agrovoc/c_12607, http://aims.fao.org/aos/agrovoc/c_5731, http://aims.fao.org/aos/agrovoc/c_11620, http://aims.fao.org/aos/agrovoc/c_3855, http://aims.fao.org/aos/agrovoc/c_3225, http://aims.fao.org/aos/agrovoc/c_4540, |
Online Access: | http://agritrop.cirad.fr/543245/ http://agritrop.cirad.fr/543245/1/543245.pdf |
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dig-cirad-fr-5432452024-01-28T15:38:36Z http://agritrop.cirad.fr/543245/ http://agritrop.cirad.fr/543245/ Combined on-farm effect of plot size and sorghum genotype on sorghum panicle-feeding bug infestation in Mali. Ratnadass Alain, Cissé B., Cissé S., Cissé T., Hamada Mohamed Ag, Chantereau Jacques, Letourmy Philippe. 2008. Euphytica, 159 (1-2) : 135-144.https://doi.org/10.1007/s10681-007-9466-7 <https://doi.org/10.1007/s10681-007-9466-7> Combined on-farm effect of plot size and sorghum genotype on sorghum panicle-feeding bug infestation in Mali Ratnadass, Alain Cissé, B. Cissé, S. Cissé, T. Hamada, Mohamed Ag Chantereau, Jacques Letourmy, Philippe eng 2008 Euphytica H10 - Ravageurs des plantes F30 - Génétique et amélioration des plantes Sorghum bicolor Miridae résistance aux organismes nuisibles relation hôte parasite infestation génotype http://aims.fao.org/aos/agrovoc/c_7247 http://aims.fao.org/aos/agrovoc/c_12607 http://aims.fao.org/aos/agrovoc/c_5731 http://aims.fao.org/aos/agrovoc/c_11620 http://aims.fao.org/aos/agrovoc/c_3855 http://aims.fao.org/aos/agrovoc/c_3225 Mali http://aims.fao.org/aos/agrovoc/c_4540 The reaction of four sorghum cultivars to panicle-feeding bugs was assessed in small (15 m2) and large (0.5-1.0 ha) plots for 2 years in three villages of the Kolokani region (Mali). The aim was to explain the somewhat contradictory earlier observations of pest infestation and damage in small experimental plots (on-station and on-farm) as well as in farmers' field surveys. Irrespective of the plot size, the local guinea sorghum cultivar Bibalawili was consistently the least infested and damaged, followed by bug-resistant compact-headed cv Malisor 84-7, whereas the improved caudatum cultivar Gadiabani, which had been disseminated for nearly a decade in the region, and the improved hybrid ICSH 89002, were the most heavily damaged. When located along the border of large plots of a susceptible cultivar, small plots of the four cultivars overall were less infested and damaged than when located along the border of plots of resistant cultivars. However, they were more infested and damaged when located in the centre of large plots of susceptible cultivars than when they were in the centre of resistant cultivar plots. In large plots, bug populations and damage decreased from the border to the centre. These results suggest that, in addition to the mere plot size, plant breeders should take the genotypic environment of their experimental plots into account, namely the vicinity of large plots of pest-susceptible or -resistant cultivars, and the position of the test plots (border or centre) relative to these large plots. article info:eu-repo/semantics/article Journal Article info:eu-repo/semantics/publishedVersion http://agritrop.cirad.fr/543245/1/543245.pdf text Cirad license info:eu-repo/semantics/restrictedAccess https://agritrop.cirad.fr/mention_legale.html https://doi.org/10.1007/s10681-007-9466-7 10.1007/s10681-007-9466-7 http://catalogue-bibliotheques.cirad.fr/cgi-bin/koha/opac-detail.pl?biblionumber=199302 info:eu-repo/semantics/altIdentifier/doi/10.1007/s10681-007-9466-7 info:eu-repo/semantics/altIdentifier/purl/https://doi.org/10.1007/s10681-007-9466-7 |
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H10 - Ravageurs des plantes F30 - Génétique et amélioration des plantes Sorghum bicolor Miridae résistance aux organismes nuisibles relation hôte parasite infestation génotype http://aims.fao.org/aos/agrovoc/c_7247 http://aims.fao.org/aos/agrovoc/c_12607 http://aims.fao.org/aos/agrovoc/c_5731 http://aims.fao.org/aos/agrovoc/c_11620 http://aims.fao.org/aos/agrovoc/c_3855 http://aims.fao.org/aos/agrovoc/c_3225 http://aims.fao.org/aos/agrovoc/c_4540 H10 - Ravageurs des plantes F30 - Génétique et amélioration des plantes Sorghum bicolor Miridae résistance aux organismes nuisibles relation hôte parasite infestation génotype http://aims.fao.org/aos/agrovoc/c_7247 http://aims.fao.org/aos/agrovoc/c_12607 http://aims.fao.org/aos/agrovoc/c_5731 http://aims.fao.org/aos/agrovoc/c_11620 http://aims.fao.org/aos/agrovoc/c_3855 http://aims.fao.org/aos/agrovoc/c_3225 http://aims.fao.org/aos/agrovoc/c_4540 |
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H10 - Ravageurs des plantes F30 - Génétique et amélioration des plantes Sorghum bicolor Miridae résistance aux organismes nuisibles relation hôte parasite infestation génotype http://aims.fao.org/aos/agrovoc/c_7247 http://aims.fao.org/aos/agrovoc/c_12607 http://aims.fao.org/aos/agrovoc/c_5731 http://aims.fao.org/aos/agrovoc/c_11620 http://aims.fao.org/aos/agrovoc/c_3855 http://aims.fao.org/aos/agrovoc/c_3225 http://aims.fao.org/aos/agrovoc/c_4540 H10 - Ravageurs des plantes F30 - Génétique et amélioration des plantes Sorghum bicolor Miridae résistance aux organismes nuisibles relation hôte parasite infestation génotype http://aims.fao.org/aos/agrovoc/c_7247 http://aims.fao.org/aos/agrovoc/c_12607 http://aims.fao.org/aos/agrovoc/c_5731 http://aims.fao.org/aos/agrovoc/c_11620 http://aims.fao.org/aos/agrovoc/c_3855 http://aims.fao.org/aos/agrovoc/c_3225 http://aims.fao.org/aos/agrovoc/c_4540 Ratnadass, Alain Cissé, B. Cissé, S. Cissé, T. Hamada, Mohamed Ag Chantereau, Jacques Letourmy, Philippe Combined on-farm effect of plot size and sorghum genotype on sorghum panicle-feeding bug infestation in Mali |
description |
The reaction of four sorghum cultivars to panicle-feeding bugs was assessed in small (15 m2) and large (0.5-1.0 ha) plots for 2 years in three villages of the Kolokani region (Mali). The aim was to explain the somewhat contradictory earlier observations of pest infestation and damage in small experimental plots (on-station and on-farm) as well as in farmers' field surveys. Irrespective of the plot size, the local guinea sorghum cultivar Bibalawili was consistently the least infested and damaged, followed by bug-resistant compact-headed cv Malisor 84-7, whereas the improved caudatum cultivar Gadiabani, which had been disseminated for nearly a decade in the region, and the improved hybrid ICSH 89002, were the most heavily damaged. When located along the border of large plots of a susceptible cultivar, small plots of the four cultivars overall were less infested and damaged than when located along the border of plots of resistant cultivars. However, they were more infested and damaged when located in the centre of large plots of susceptible cultivars than when they were in the centre of resistant cultivar plots. In large plots, bug populations and damage decreased from the border to the centre. These results suggest that, in addition to the mere plot size, plant breeders should take the genotypic environment of their experimental plots into account, namely the vicinity of large plots of pest-susceptible or -resistant cultivars, and the position of the test plots (border or centre) relative to these large plots. |
format |
article |
topic_facet |
H10 - Ravageurs des plantes F30 - Génétique et amélioration des plantes Sorghum bicolor Miridae résistance aux organismes nuisibles relation hôte parasite infestation génotype http://aims.fao.org/aos/agrovoc/c_7247 http://aims.fao.org/aos/agrovoc/c_12607 http://aims.fao.org/aos/agrovoc/c_5731 http://aims.fao.org/aos/agrovoc/c_11620 http://aims.fao.org/aos/agrovoc/c_3855 http://aims.fao.org/aos/agrovoc/c_3225 http://aims.fao.org/aos/agrovoc/c_4540 |
author |
Ratnadass, Alain Cissé, B. Cissé, S. Cissé, T. Hamada, Mohamed Ag Chantereau, Jacques Letourmy, Philippe |
author_facet |
Ratnadass, Alain Cissé, B. Cissé, S. Cissé, T. Hamada, Mohamed Ag Chantereau, Jacques Letourmy, Philippe |
author_sort |
Ratnadass, Alain |
title |
Combined on-farm effect of plot size and sorghum genotype on sorghum panicle-feeding bug infestation in Mali |
title_short |
Combined on-farm effect of plot size and sorghum genotype on sorghum panicle-feeding bug infestation in Mali |
title_full |
Combined on-farm effect of plot size and sorghum genotype on sorghum panicle-feeding bug infestation in Mali |
title_fullStr |
Combined on-farm effect of plot size and sorghum genotype on sorghum panicle-feeding bug infestation in Mali |
title_full_unstemmed |
Combined on-farm effect of plot size and sorghum genotype on sorghum panicle-feeding bug infestation in Mali |
title_sort |
combined on-farm effect of plot size and sorghum genotype on sorghum panicle-feeding bug infestation in mali |
url |
http://agritrop.cirad.fr/543245/ http://agritrop.cirad.fr/543245/1/543245.pdf |
work_keys_str_mv |
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1792496798910119936 |