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Does growing safflower before barley reduce barley yields under mediterranean conditions?

Show simple item record Yau S.-K. Ryan J.
dc.contributor.editor 2012 2017-10-18T13:13:50Z 2017-10-18T13:13:50Z 2012
dc.identifier 10.2134/agronj2012.0110
dc.identifier.issn 21962
dc.description.abstract Safflower (Carthamus tinctorius L.) which has deep roots can be grown as an economical oil crop in semiarid rain-fed areas of West Asia and North Africa where barley (Hordeum vulgare L.) monoculture is a common practice. In this study we sought to: (i) evaluate the effect of safflower on the yield of the following barley crop and (ii) compare such effect with other crops to determine the potential of rotating safflower with barley. Two series of experiments were conducted under rain-fed conditions in Lebanon's Bekaa Valley (2002-2003 to 2003-2004 and 2005-2006 to 2010-2011). In Series 1 there were 12 2-yr rotation systems whereas in Series 2 3 rotation systems were studied. Results from the two and three rotation cycles were reported from the first and second series of experiments respectively. Rotation effects were significant (P ≤ 0.05) for barley grain yield straw yield and harvest index but rotation × year interaction was not significant. In Series 1 barley after safflower gave the highest harvest index (0.40 kg kg-1) and mean grain yield (1400 kg ha-1) that is 28 to 72percent higher grain yield than after the other crops except after cumin (Cuminum cyminum L.) and common vetch (Vicia sativa L.) for grazing. In Series 2 grain yield and harvest index of barley aft er safflower (4090 kg ha-1 0.36 kg kg-1) were higher than that after barley (3010 kg ha-1 0.32 kg kg-1). Thus growing safflower before barley increased rather than decreased barley yields and was comparable to or better than after some legumes. Barley-safflower therefore appears to be a viable rotation in semiarid rain-fed Mediterranean areas. © 2012 by the American Society of Agronomy.
dc.format.extent Pages: (1493-1500)
dc.language English
dc.publisher MADISON
dc.relation.ispartof Publication Name: Agronomy Journal; Publication Year: 2012; Volume: 104; no. 6; Pages: (1493-1500);
dc.source Scopus
dc.title Does growing safflower before barley reduce barley yields under mediterranean conditions?
dc.type Article
dc.contributor.affiliation Yau, S.-K., Dep. of Agricultural Sciences, Faculty of Agricultural and Food Sciences, American Univ. of Beirut (AUB), P.O. Box: 11- 0236, Beirut, Lebanon
dc.contributor.affiliation Ryan, J., ICARDA, P.O. Box 5466, Aleppo, Syrian Arab Republic
dc.contributor.authorAddress Yau, S.-K.; Dep. of Agricultural Sciences, Faculty of Agricultural and Food Sciences, American Univ. of Beirut (AUB), P.O. Box: 11- 0236, Beirut, Lebanon; email:
dc.contributor.authorCorporate University: American University of Beirut; Faculty: Faculty of Agricultural and Food Sciences; Department: Agricultural Sciences;
dc.contributor.authorDepartment Agricultural Sciences
dc.contributor.authorFaculty Faculty of Agricultural and Food Sciences
dc.contributor.authorInitials Yau, SK
dc.contributor.authorInitials Ryan, J
dc.contributor.authorReprintAddress Yau, SK (reprint author), Amer Univ Beirut, Dep Agr Sci, Fac Agr and Food Sci, POB 11-0236, Beirut, Lebanon.
dc.contributor.authorUniversity American University of Beirut
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dc.description.citedTotWOSCount 0
dc.description.citedWOSCount 0
dc.format.extentCount 8
dc.identifier.coden AGJOA
dc.identifier.scopusID 84869005166
dc.publisher.address 677 S SEGOE RD, MADISON, WI 53711 USA
dc.relation.ispartOfISOAbbr Agron. J.
dc.relation.ispartOfIssue 6
dc.relation.ispartofPubTitle Agronomy Journal
dc.relation.ispartofPubTitleAbbr Agron. J.
dc.relation.ispartOfVolume 104
dc.source.ID WOS:000310767200001
dc.type.publication Journal
dc.subject.otherIndex Carthamus tinctorius
dc.subject.otherIndex cuminum cyminum
dc.subject.otherIndex hordeum
dc.subject.otherIndex hordeum vulgare subsp. Vulgare
dc.subject.otherIndex vicia sativa
dc.subject.otherIndex vicia sativa subsp. Nigra
dc.subject.otherKeywordPlus Northern great-plains
dc.subject.otherKeywordPlus cropping systems
dc.subject.otherKeywordPlus crops
dc.subject.otherKeywordPlus wheat
dc.subject.otherKeywordPlus growth
dc.subject.otherKeywordPlus productivity
dc.subject.otherKeywordPlus environment
dc.subject.otherKeywordPlus rotations
dc.subject.otherKeywordPlus benefits
dc.subject.otherKeywordPlus patterns
dc.subject.otherWOS Agronomy

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