Purple witchweed (Striga hermonthica) germination and seedbank depletion under different crops, fallow, and bare soil
نویسندگان
چکیده
منابع مشابه
Effects of ALS-inhibitor herbicides, crop sequence, and fertilization on natural soil suppressiveness to Striga hermonthica
Striga hermonthica remains one of the greatest biological threats to cereal production in the savannahs of sub-Saharan Africa. Control efforts at the International Institute of Tropical Agriculture (IITA), Nigeria, focus on developing integrated S. hermonthica management (ISM) options such as legume-cereal rotation, use of host–plant resistance, soil-based biological control exploiting enhancem...
متن کاملEffects of soil pasteurisation and soil N status on severity of Striga hermonthica (Del.) Benth. in maize
The nature of interrelationships between soil pasteurisation, and increased soil N content, on the severity of Striga hermonthica infection in maize was studied in pot experiments in the screen-house. An initial experiment revealed that there was no significant difference in amount of S. hermonthica infection in maize grown in potted soil collected from Bida (98050N, 68010E) and Ibadan (78170N,...
متن کاملNovel Sources of Witchweed (Striga) Resistance from Wild Sorghum Accessions
Sorghum is a major food staple in sub-Saharan Africa (SSA), but its production is constrained by the parasitic plant Striga that attaches to the roots of many cereals crops and causes severe stunting and loss of yield. Away from cultivated farmland, wild sorghum accessions grow as weedy plants and have shown remarkable immunity to Striga. We sought to determine the extent of the resistance to S...
متن کاملHorizontal gene transfer by the parasitic plant Striga hermonthica.
Horizontal gene transfer has been postulated to occur between crops to co-occurring parasitic plants, but empirical evidence has been lacking. We present evidence that an HGT event moved a nuclear monocot gene into the genome of the eudicot parasite witchweed (Striga hermonthica), which infects many grass species in Africa. Analysis of expressed sequence tags revealed that the genome of S. herm...
متن کاملGenetic Structure and Analysis of Host and Nonhost Interactions of Striga gesnerioides (Witchweed) from Central Florida.
ABSTRACT Striga gesnerioides is a root hemiparasite of wild and cultivated legumes, among which cowpea (Vigna unguiculata) and Indigofera hirsuta are suitable hosts. In this study, we examined the genetic structure and host-parasite interaction of a strain of S. gesnerioides parasitizing I. hirsuta (SGFL) from central Florida (United States). Amplified fragment length polymorphism analysis was ...
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ژورنال
عنوان ژورنال: Weed Biology and Management
سال: 2011
ISSN: 1444-6162
DOI: 10.1111/j.1445-6664.2011.00409.x