Shortly after the host xylem is penetrated, Striga sieve tubes develop and approach the host phloem within eight cells. This eight cell layer allows for nonspecific nutrient transport from the host to the Striga seedling. Within 24 hours after tapping the host xylem and phloem, the Striga cotyledons emerge from the seed. See more Striga, commonly known as witchweed, is a genus of parasitic plants that occur naturally in parts of Africa, Asia, and Australia. It is currently classified in the family Orobanchaceae, although older classifications place … See more Although most species of Striga are not pathogens that affect human agriculture, some species have devastating effects upon crops, … See more Temperatures ranging from 30 to 35 °C (86 to 95 °F) in a moist environment are ideal for germination. Witchweed will not develop in temperatures below 20 °C (68 °F). Agricultural … See more Maize, sorghum, and sugarcane crops affected by witchweed in the United States have an estimated value well over $20 billion. Furthermore, … See more Each plant is capable of producing between 90,000 and 500,000 seeds, which may remain viable in the soil for over 10 years. Most seeds … See more Management of witchweed is difficult because the majority of its life cycle takes place below ground. If it is not detected before emergence, it is too late to reduce crop losses. To prevent witchweed from spreading it is necessary to plant uncontaminated … See more Common crop parasites • Striga asiatica has a very wide geographic distribution, from Africa through southern and eastern Asia to Australia. Since the 1950s, it is also … See more http://oar.icrisat.org/1221/1/RA_00426.pdf
Genetic and Management Options for Controlling Striga
WebStriga spp. take about 4–10 weeks to complete its life cycle after emergence and this completion usually occurs after harvest of the host (Ramaiah et al., 1983). 2.3 Striga control methods Striga control is essential to ensure food security in the SSA (Ejeta, 2007; Rodenburg et al., 2005). WebJan 5, 2024 · Striga spends one third to half of its growing phase underground and can survive and flower if emerged herbs are covered or albino, so clearly, it relies heavily on host-derived carbon (Rogers and Nelson 1962; Stewart 1987 ). haythorpe reserve mannum
Combining host plant defence with targeted nutrition: key to …
Webcontrol of Striga: Current practices and future prospects. Front.Sustain.FoodSyst.7:073339. doi: 10.3389/fsufs.2024.1073339 COPYRIGHT ... complex life cycle, interactions with its host WebJun 21, 2012 · The Striga life cycle is highly synchronized with that of the host and generally involves the stages of germination, attachment to host, haustorial formation, penetration, establishment of vascular connections, accumulation of nutrients, flowering and seed production [ 2 ]. WebDec 31, 2016 · Striga are obligate root-parasitic plants of the major agricultural cereal crops, including millets, in tropical and semi-arid regions of Africa, Middle East, Asia, and … botw talus theme