Results 31 to 40 of about 408 (134)

Multiple layers of incompatibility to the parasitic witchweed, Striga hermonthica [PDF]

New Phytologist, 2009
* Witchweeds (Striga spp.) are major agricultural pests that infest important crops in sub-Saharan Africa. Striga hermonthica parasitizes gramineous plants including sorghum, maize and rice, but not dicots. To understand host recognition mechanisms of S.
Satoko, Yoshida, Ken, Shirasu
openaire   +2 more sources

Agronomic performance of improved Cowpea varieties under natural infestation with Alectra vogelii (benth.) in the northern guinea savannah of Nigeria

Agricultura Tropica et Subtropica, 2012
Field trials were conducted over three years at Samaru in the northern Guinea savannah ecological zone of Nigeria to evaluate the performance of 20 improved cowpea varieties under conditions of natural infestation by a parasitic weed, Alectra vogelii ...
Olufajo Olusoji Olaolu
doaj   +1 more source

In vitro host-free seed culture, callus development and organogenesis of an obligatory root-parasite Striga hermonthica (Del.) Benth: the witch-weed and medicinal plant

International Journal of Plant Biology, 2011
Striga hermonthica (Del.) Benth a well-known hemi-parasitic weed, it also has been used widely in African folk medicine to remedy broad spectra of diseases. The current contribution is an attempt to establish reproducible in vitro callusing system.
Faisal Hammad Mekky Koua, Fatima Misbah Abbas, Eisa Ibrahim Elgaali, Mutasim Mohammed Khalafallah, Hind Ahmed Ali Babiker   +4 more
doaj   +1 more source

Discovery of strigol synthase from cotton (Gossypium hirsutum): The enzyme behind the first identified germination stimulant for Striga

PLANTS, PEOPLE, PLANET, Volume 7, Issue 2, Page 354-359, March 2025.
Parasitic witchweeds (Striga species) pose a serious threat to food security in Africa, attacking cereal grains and legumes. Chemicals released from the host roots that initiate the life cycle of Striga are known as germination stimulants, predominantly strigolactones (SLs).
Takatoshi Wakabayashi, Megumi Nakayama, Yurie Kitano, Masato Homma, Kenji Miura, Hirosato Takikawa, Masaharu Mizutani, Yukihiro Sugimoto   +7 more
wiley   +1 more source

Germination, Host Preference, and Phenolic Content of Witchweed (Striga hermonthica) Seed Populations

, 1986
Phenolic content, germination percentage, and host preference were compared among 11 seed populations of witchweed (Striga hermonthica(Del.) Benth. # STRHE).
Adil E. Awad, Faiz F. Bebawi, Sami A. Khalid   +2 more
core   +1 more source

SOCIAL RETURNS TO DISEASE AND PARASITE CONTROL IN AGRICULTURE: WITCHWEED IN THE UNITED STATES [PDF]

, 2017
This study provides ex ante estimates of the value to society of the U.S. Department of Agriculture's witch· weed program. Program objectives are to contain and eradicate witchweed, a semiparasitic plant which reduces corn and grain sorghum yields ...
Emerson, Peter M., Plato, Gerald E.
core   +1 more source

Global Invasive Potential of 10 Parasitic Witchweeds and Related Orobanchaceae [PDF]

AMBIO: A Journal of the Human Environment, 2006
The plant family Orobanchaceae includes many parasitic weeds that are also impressive invaders and aggressive crop pests with several specialized features (e.g. microscopic seeds, parasitic habits). Although they have provoked several large-scale eradication and control efforts, no global evaluation of their invasive potential is as yet available.
Mohamed, Kamal I., Papes, Monica, Williams, Richard, Benz, Brett W., Peterson, A. Townsend   +4 more
openaire   +3 more sources

Opportunities for expansion of push-pull technology as an agroecological and sustainable intensification approach in Africa

npj Sustainable Agriculture
The push-pull technology (PPT) has often been presented as a management strategy for stemborers and witchweed. However, its value as an agronomic practice and an agroecological approach remains largely underappreciated.
Gudeta W. Sileshi, Shem Kuyah, Meredith C. Schuman, Frank Chidawanyika, Beatrice W. Muriithi, Charles A. O. Midega, Adewole Olagoke, Michael H. Otim, Paramu L. Mafongoya, Emily A. Martin   +9 more
doaj   +1 more source

Aging seeds of weedy broomrapes and witchweeds lose sensitivity to strigolactones as DNA demethylates

PLANTS, PEOPLE, PLANET, Volume 7, Issue 2, Page 476-485, March 2025.
Broomrapes and witchweeds have devastating effects on crops in parts of Europe, Africa, and Asia. The key to their success is the production of copious, long‐lived seeds, which germinate in response to the perception of chemicals released by their hosts' roots.
Guillaume Brun, Jonathan Pöhl, Susann Wicke   +2 more
wiley   +1 more source

Influence of Alectra vogelii inoculation and phosphorus fertilizer application on phenology, yield components and grain yield of bambara groundnut genotypes

Heliyon
In sub-Saharan Africa, the parasitic Alectra vogelii is seriously threatening Bambara groundnuts, farmers to suffer yield losses of up to 100 %. The objective of this study was to determine the effects of phosphorus (P) application and Alectra vogelii ...
Rudo Musango, Tamado Tana, Stanford Mabasa, Edmore Gasura, Josephine Tafadzwa Pasipanodya, Ronald Mandumbu, Tonny Phirilani Tauro   +6 more
doaj   +1 more source