Effect of alleviating products with different mode of action on physiology and yield of olive under drought

dc.contributor.author	Roussos, PA	en
dc.contributor.author	Denaxa, N-K	en
dc.contributor.author	Damvakaris, T	en
dc.contributor.author	Stournaras, V	en
dc.contributor.author	Argyrokastritis, I	en
dc.date.accessioned	2014-06-06T06:50:13Z
dc.date.available	2014-06-06T06:50:13Z
dc.date.issued	2010	en
dc.identifier.issn	03044238	en
dc.identifier.uri	http://dx.doi.org/10.1016/j.scienta.2010.06.003	en
dc.identifier.uri	http://62.217.125.90/xmlui/handle/123456789/5000
dc.subject	Carbohydrates	en
dc.subject	Leaf characteristics	en
dc.subject	Olea europaea	en
dc.subject	Photosynthesis	en
dc.subject	Water stress	en
dc.subject.other	antioxidant	en
dc.subject.other	carbohydrate	en
dc.subject.other	crop yield	en
dc.subject.other	drought stress	en
dc.subject.other	evergreen tree	en
dc.subject.other	experimental study	en
dc.subject.other	irradiance	en
dc.subject.other	irrigation system	en
dc.subject.other	kaolin	en
dc.subject.other	photosynthesis	en
dc.subject.other	physiological response	en
dc.subject.other	stomatal conductance	en
dc.subject.other	water use efficiency	en
dc.subject.other	Olea europaea	en
dc.title	Effect of alleviating products with different mode of action on physiology and yield of olive under drought	en
heal.type	journalArticle	en
heal.identifier.primary	10.1016/j.scienta.2010.06.003	en
heal.publicationDate	2010	en
heal.abstract	Two years old self-rooted Koroneiki olive trees (Olea europaea L.) were subjected to two irrigation regimes, i.e. the fully irrigated and the severely water stressed trees, while they were treated with three alleviating products of different mode of action. The products used were the osmolyte glycine betaine, the antioxidant Ambiol and the heat and irradiance reflecting kaolin clay particles. The effects of product application and water regime on leaf characteristics, shoot and root growth, photosynthesis, leaf compatible solids (carbohydrates) concentration and yield were evaluated. All products applied, exhibited significant alleviating action, based on the relative alleviation index. Irrigated trees exhibited greater growth than drought stressed ones, while the ameliorating products maintained the water content of the leaves under drought conditions and resulted in lower leaf tissue density. On the other hand carbon assimilation rate, stomatal conductance and intrinsic water use efficiency were significantly reduced under drought stress, while the opposite stood for intercellular CO2. Drought stress resulted in elevated sucrose leaf concentration, while the application of Ambiol increased stachyose concentration and that of glycine betaine did the same with the mannitol concentration. Among the alleviating products tested in this experiment Ambiol and glycine betaine had a significant positive effect on leaf water content, photosynthesis and yield under both drought and well irrigated conditions. © 2010 Elsevier B.V.	en
heal.journalName	Scientia Horticulturae	en
dc.identifier.issue	4	en
dc.identifier.volume	125	en
dc.identifier.doi	10.1016/j.scienta.2010.06.003	en
dc.identifier.spage	700	en
dc.identifier.epage	711	en