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Response of soybean genotypes to Alectra vogelii infestation under natural field conditions

dc.contributor.authorKureh, I.
dc.contributor.authorAlabi, S.
dc.contributor.authorKamara, A.
dc.date.accessioned2019-12-04T11:19:01Z
dc.date.available2019-12-04T11:19:01Z
dc.date.issued2005
dc.identifier.citationKureh, I., Alabi, S. & Kamara, A. (2005). Response of soybean genotypes to Alectra vogelii infestation under natural field conditions. Tropicultura, 23(3), 183-189.
dc.identifier.issn0771-3312
dc.identifier.urihttps://hdl.handle.net/20.500.12478/3376
dc.description.abstractField studies were conducted in 1995 and 1996 in the northern Guinea savanna of Nigeria to determine the response of 22 soybean genotypes to Alectra infestation. Significant differences were observed amongst soybean genotypes in number of Alectra shoots that emerged at 9 and 10 weeks after sowing and days to first Alectra emergence. Alectra emergence occurred later in early maturing soybean genotypes [54 days after sowing (DAS)] while with most late maturing genotypes, Alectra emergence started at 50 DAS. Result revealed that sixteen genotypes supported few or no Alectra shoots while six were susceptible. Soybean genotypes that supported high numbers of Alectra shoots recorded lower grain yields than those with fewer Alectra shoots. However, soybean genotypes, SAMSOY2 and TGX1485-1D that significantly supported high numbers of Alectra recorded grain yields similar to those of genotypes that supported few or no Alectra. These findings may be due to three possible mechanisms of resistance of soybean genotypes to Alectra parasitism. The sixteen genotypes, which supported few or no Alectra shoots, may have produced lower amounts of root exudates required for stimulation of germination of Alectra. They may also have prevented the initiation, attachment, and penetration of haustorium from Alectra plants to the roots of the hosts. These mechanism were however, not investigated in this study. Further studies may therefore be necessary to confirm our speculations. Soybean genotypes, SAMSOY2 and TGX1485-1D, which recorded high yield irrespective of high infestation with Alectra may exhibit tolerance to the parasite.
dc.language.isoen
dc.language.isofr
dc.subjectAlectra
dc.subjectSoybean Genotypes
dc.subjectGrain Yields
dc.subjectGuinea Savanna
dc.subjectParasite
dc.subjectStriga
dc.subjectGrain Legume
dc.subjectFertilizers
dc.titleResponse of soybean genotypes to Alectra vogelii infestation under natural field conditions
dc.typeJournal Article
dc.description.versionPeer Review
cg.contributor.affiliationAhmadu Bello University
cg.contributor.affiliationInternational Institute of Tropical Agriculture
cg.coverage.regionAfrica
cg.coverage.regionWest Africa
cg.coverage.countryNigeria
cg.isijournalISI Journal
cg.authorship.typesCGIAR and developing country institute
cg.iitasubjectFood Security
cg.iitasubjectHandling, Transport, Storage And Protection Of Agricultural Products
cg.iitasubjectLivelihoods
cg.iitasubjectGrain Legumes
cg.iitasubjectGenetic Improvement
cg.iitasubjectPlant Breeding
cg.iitasubjectPlant Diseases
cg.iitasubjectPlant Genetic Resources
cg.iitasubjectPlant Production
cg.iitasubjectSmallholder Farmers
cg.iitasubjectSoil Fertility
cg.iitasubjectSoybean
cg.accessibilitystatusLimited Access
local.dspaceid95050


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