Review: The phenomenon of crop-weed competition; a problem or a key for sustainable weed management?

dc.contributor.author	Efthimiadou, AP	en
dc.contributor.author	Karkanis, AC	en
dc.contributor.author	Bilalis, DJ	en
dc.contributor.author	Efthimiadis, P	en
dc.date.accessioned	2014-06-06T06:49:31Z
dc.date.available	2014-06-06T06:49:31Z
dc.date.issued	2009	en
dc.identifier.issn	14590255	en
dc.identifier.uri	http://62.217.125.90/xmlui/handle/123456789/4644
dc.relation.uri	http://www.scopus.com/inward/record.url?eid=2-s2.0-66349139081&partnerID=40&md5=1621d37f2bb5e5726bb8cfe4d23561e6	en
dc.subject	Allelopathy	en
dc.subject	Competition	en
dc.subject	Competitive ability	en
dc.subject	Crop density	en
dc.subject	Cultivars	en
dc.subject	Fertilization	en
dc.subject	Seedbank	en
dc.subject	Water stress	en
dc.subject	Weed	en
dc.subject	Weed suppression	en
dc.subject.other	herbicide	en
dc.subject.other	agricultural worker	en
dc.subject.other	article	en
dc.subject.other	biomass	en
dc.subject.other	breeding	en
dc.subject.other	competitive ability	en
dc.subject.other	crop management	en
dc.subject.other	cultivar	en
dc.subject.other	fertilization	en
dc.subject.other	growth rate	en
dc.subject.other	herbicide resistance	en
dc.subject.other	morphological trait	en
dc.subject.other	nonhuman	en
dc.subject.other	plant leaf	en
dc.subject.other	resistance management	en
dc.subject.other	seed	en
dc.subject.other	soil property	en
dc.subject.other	water stress	en
dc.subject.other	weed control	en
dc.title	Review: The phenomenon of crop-weed competition; a problem or a key for sustainable weed management?	en
heal.type	journalArticle	en
heal.publicationDate	2009	en
heal.abstract	Herbicide resistance in weeds is rapidly expanding phenomenon around the world resulting in higher costs of production and greater weed impact. With current pressures to reduce herbicide usage but maintain cost-effective weed control, the innate ability of crops or cultivars to suppress weed growth has become increasingly important. The increasing appearance of herbicide-resistant weeds in the fields may force breeders to consider breeding for competitiveness as a high priority. Moreover, knowledge of competitive ability of weeds is desirable for development of economically and environmentally acceptable weed management systems. It is well established that weed species vary in their competitive effects on crops. Effective weed control management has been dependent upon farmers gaining knowledge of the characteristics of the weeds they were managing. The objective of this review was to examine the role of seed persistence, morphological traits of weeds, environment (i.e. water stress, soil properties) and cultural practices (fertilization, crop density and pattern, competitive crops and cultivars) in weed-crop competition. Characters such as growth rates, shading ability, tillering capacity, crop height, leaf area, upright growth, long stem, high biomass and allellopathy affect crop:weed interactions. Although we cannot eliminate the use of herbicides (synthetic or organic), their use can be reduced by selection of crop species and cultivars with superior weed suppression potential. Cultivars which are able to tolerate or compete strongly with weeds in combination with increased seed rates would make a significant contribution to productivity and yield stability on farmer's fields.	en
heal.journalName	Journal of Food, Agriculture and Environment	en
dc.identifier.issue	2	en
dc.identifier.volume	7	en
dc.identifier.spage	861	en
dc.identifier.epage	868	en