Allelopathic effects of Pinus halepensis needles on turfgrasses and biosensor plants

dc.contributor.author	Nektarios, PA	en
dc.contributor.author	Economou, G	en
dc.contributor.author	Avgoulas, C	en
dc.date.accessioned	2014-06-06T06:46:25Z
dc.date.available	2014-06-06T06:46:25Z
dc.date.issued	2005	en
dc.identifier.issn	00185345	en
dc.identifier.uri	http://62.217.125.90/xmlui/handle/123456789/2995
dc.relation.uri	http://www.scopus.com/inward/record.url?eid=2-s2.0-13144257786&partnerID=40&md5=da7fef31e63dd151491b267dfe74690f	en
dc.subject	Avena sativa	en
dc.subject	Bioassay	en
dc.subject	Cynodon dactylon	en
dc.subject	Festuca arundinacea	en
dc.subject	Inhibition	en
dc.subject	Lemna minor	en
dc.subject	Phytotoxic compounds	en
dc.subject.other	Bioassay	en
dc.subject.other	Biosensors	en
dc.subject.other	Growth kinetics	en
dc.subject.other	Plant cell culture	en
dc.subject.other	Solubility	en
dc.subject.other	Tissue culture	en
dc.subject.other	Toxicity	en
dc.subject.other	Allelopathic potential	en
dc.subject.other	Biosensor plants	en
dc.subject.other	Phytotoxic compounds	en
dc.subject.other	Turfgrasses	en
dc.subject.other	Plants (botany)	en
dc.subject.other	Biological Tests	en
dc.subject.other	Grasses	en
dc.subject.other	Growth	en
dc.subject.other	Pinus Halepensis	en
dc.subject.other	Roots	en
dc.subject.other	Shoots	en
dc.subject.other	Solubility	en
dc.subject.other	Tissue Culture	en
dc.subject.other	Toxicity	en
dc.subject.other	Avena	en
dc.subject.other	Avena sativa	en
dc.subject.other	Cynodon	en
dc.subject.other	Cynodon dactylon	en
dc.subject.other	Festuca	en
dc.subject.other	Lemna	en
dc.subject.other	Lemna minor	en
dc.subject.other	Pinus halepensis	en
dc.subject.other	Schedonorus arundinaceus	en
dc.title	Allelopathic effects of Pinus halepensis needles on turfgrasses and biosensor plants	en
heal.type	journalArticle	en
heal.publicationDate	2005	en
heal.abstract	Fresh, senesced, and decaying pine needles from Pinus halepensis were evaluated for their allelopathic potential on Festuca arundinacea, Cynodon dactylon and the biosensor plants Avena sativa and Lemna minor through in vivo and in vitro studies. The in vivo study was performed in growth chambers, using 6, 12, and 18 g of pine needle tissue mixed with screened perlite as a substrate. The effects of the different pine needle types were evaluated by determining the total root length, total root surface, root dry weight, total shoot length, total shoot surface, and shoot dry weight. The in vitro study was performed in Petri dishes where seeds from each species were subjected to an increasing concentration of pine needle extract. The extracts were obtained from pine needle ground tissue that was diluted with water and either shacked at room temperature or placed in water bath at 40°C for 24 h. The evaluation of the allelopathic potential was performed with the determination of radicle length. The allelopathic potential of the pine needle tissues was confirmed with bioassays using oat (A. sativa) and duckweed (L. minor). The results strongly suggested the allelopathic potential of the pine needle tissue, being more pronounced in the fresh, moderate in the senesced, and low in the decaying pine needles. The allelopathic substances were species-specific, and the inhibition resistance of the species tested followed the order F. arundinacea > C. dactylon > A. sativa. The inhibition of the L. minor suggested that the water soluble phytotoxic compounds were inhibitors of Photosystem II.	en
heal.journalName	HortScience	en
dc.identifier.issue	1	en
dc.identifier.volume	40	en
dc.identifier.spage	246	en
dc.identifier.epage	250	en