Results 221 to 230 of about 23,978 (262)

Attachment of the parasitic weed dodder to the host

Protoplasma, 2002
The parasitic weed dodder (Cuscuta pentagona L.) invades a number of potential host species, but the mechanisms responsible for ensuring tight adhesion to the wide variety of host surfaces have yet to be identified. In this study, a battery of microscopy protocols is used to examine the host-parasite interface in an effort to deduce these mechanisms ...
exaly   +3 more sources

Parasitic weeds.

2009
AbstractThis chapter presents weeds (Cuscuta and Orobanche spp.) that are parasitic on lentil, briefly covering their biology, geographical distribution, and management (through chemical, cultural and integrated control methods).
D. Rubiales, M. Fernández-Aparicio, A. Haddad   +2 more
openaire   +1 more source

Effects of Parasitic and Non-Parasitic Weeds on Sorghum

Experimental Agriculture, 1981
SUMMARYThe parasitic weed striga had significantly greater effects on sorghum yield components than non-parasitic weeds. Grain reduction caused by striga amounted to 65% compared with 32% reduction caused by non-parasitic weeds. Comparable reductions were also manifest in straw yield, grains/head and plant height of sorghum.
F. F. Bebawi, A. F. Farah
openaire   +1 more source

The Parasitic Weeds of the Orobanchaceae

2013
This chapter outlines the most important members of the Orobanchaceae occurring as weeds of agriculture worldwide, the holoparasitic broomrapes (Orobanche and Phelipanche species), the hemiparasitic Striga species and finally a few less important hemiparasites including Alectra, Aeginetia and Rhamphicarpa species.
openaire   +1 more source

Parasitic Weeds and their Management

Parasitic flowering plants deprive the host plants of water, nutrients, and assimilates. Data also suggests that parasites transmit inhibitory compounds to hosts. Several species of the genera Striga and Orobanche (root parasites), as well as some species of Cuscuta and Loranthus (stem parasites), are widely distributed worldwide and cause substantial ...
Rakesh Kumar, Pardeep Kaur, null Robin
openaire   +1 more source

Parasitic Weeds: A World Challenge

Weed Science, 2012
While witchweed is nearing eradication in the United States, it continues to thrive in other parts of the world, especially in Africa, together with other witchweed species. The continuing problems from witchweeds and other parasitic weeds, the broomrapes, dodders and mistletoes, are outlined, including their extent, the degrees of damage caused, and ...
openaire   +1 more source

Parasitic weeds on cool season food legumes

1988
The most important parasitic weed which attacks cool season food legumes is broomrape (Orobanche sp.). It is endemic in Mediterranean regions but its area of distribution can expand as host crops spread into other zones. Most of the research carried out on Orobanche physiology has focused on the germination of seed; recent data suggest a complex ...
Cubero, J.I., Pieterse, A., Saghir, A.R., ter Borg, S.J.   +3 more
openaire   +2 more sources

Parasitic Weeds

2017
Parasitic weeds could be considered as a separate world within the weed 'universe'. This is because of their unique systems that allow them to interact with the host plants in almost every phase of their life-cycle. This chapter considers parasitic weeds in Europe the nature of the problem, the unique features of their biology and implications for ...
Maurizio Vurro, Alejandro PérezdeLuque, Hanan Eizenberg   +2 more
openaire   +1 more source

Parasitic weeds of arable land

1982
This chapter deals with parasitic weeds of arable land, that is, weeds that depend upon host plants for food and or water obtained thrugh absorptive organs termed haustoria. The parasitic habit is widespread among angiosperms and at least five different orders have parasitic genera.
openaire   +1 more source

Witchweed: a Parasitic Weed of Grain Crops

Outlook on Agriculture, 1990
The witchweeds, in the genus Striga, are a remarkable group of obligate flowering plant parasites, some of which attack and destroy the crops of small-scale farmers in many parts of the semi-arid tropics. Striga hermonthica devastates sorghum and millet crops grown in Burkina Faso, Cameroon, Chad, Ethiopia, Mali, Niger and Sudan, and the expansion of ...
openaire   +1 more source