干旱区生态环境知识资源中心(Arid): Water Status and Yield Response to Deficit Irrigation and Fertilization of Three Olive Oil Cultivars under the Semi-Arid Conditions of Tunisia

Arid

DOI	10.3390/su11174812
	Water Status and Yield Response to Deficit Irrigation and Fertilization of Three Olive Oil Cultivars under the Semi-Arid Conditions of Tunisia
	Mezghani, Mouna Aiachi; Mguidiche, Amel; Khebour, Faiza Allouche; Zouari, Imen; Attia, Faouzi; Provenzano, Giuseppe
通讯作者	Provenzano, G (corresponding author), Univ Palermo, Dept Agr Food & Forest Sci, Viale Sci 12,Bld 4, I-90128 Palermo, Italy.
来源期刊	SUSTAINABILITY
EISSN	2071-1050
出版年	2019
卷号	11 期号:17
英文摘要	Sustainability of olive production is possible by adopting the modern techniques of irrigation and fertilization. In Tunisia, olive trees are usually cultivated in poor soils, under semi-arid conditions characterized by water scarcity. This study investigated the effects of different water supply and fertilization on leaf water status and crop yield of three different olive oil varieties cultivated in central Tunisia, during four experimental seasons (2014-2017). Three treatments were examined: trees conducted under rainfed conditions (TRF), which represented the control treatment, trees irrigated with 50% ETc (T50) and, finally, trees irrigated with 50% ETc and with additional fertilization (T50F). Leaf water content and potential, yield and water use efficiency have been monitored on three different varieties, Chetoui, Chemlali, and Koroneiki, which are quite typical in the considered region. For all the growing seasons, midday leaf water potentials were measured from April to September. Midday leaf water potentials (MLWP) were generally higher for the two irrigated treatments (T50 and T50F) than for non-irrigated trees (TRF). As the season proceeded, MLWPs tended to decrease during summer for all the treatments and varieties. The lowest values were observed for the non-irrigated trees, varying between -3.25 MPa to -4.75 MPa. Relative leaf water content followed the same trends of midday leaf water potentials. Chetoui showed the lowest yield, which did not exceed 1530 Kg/(ha year), even for irrigated and fertilized trees. On the other hand, the yields of Chemlali and Koroneiki, cumulated in the four years, reached the maximum value of about 20 tons/ha. For these two varieties, the cumulated yield obtained in the control treatment (TRF) resulted significantly lower than the corresponding of the other two treatments (T50 and T50F). The highest irrigation water use efficiency (WUE) was estimated for Chemlali (T50) and (TRF). WUE was equal to 1.22 Kg/m(3) for Koroneiki under fertigated treatment (T50F). Application of the only water supply (50% ETc) or associated with fertilizer improved the tree water status and increased the productivity of Chemlali and Koroneiki varieties.
英文关键词	chemlali chetoui and koroneiki olive oil varieties deficit irrigation fertigation midday leaf water potential water use efficiency (WUE)
类型	Article
语种	英语
开放获取类型	Green Published, gold
收录类别	SCI-E ; SSCI
WOS记录号	WOS:000486877700300
WOS关键词	OLEA-EUROPAEA L. ; INTERACTIVE RESPONSES ; FIELD CONDITIONS ; CV CHEMLALI ; CROP LOAD ; TREES ; FRUIT ; PRODUCTIVITY ; STRATEGIES ; ORCHARD
WOS类目	Green & Sustainable Science & Technology ; Environmental Sciences ; Environmental Studies
WOS研究方向	Science & Technology - Other Topics ; Environmental Sciences & Ecology
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/369829
作者单位	[Mezghani, Mouna Aiachi; Mguidiche, Amel; Zouari, Imen] Olive Tree Inst Sousse, Ibn Khaldoun St,BP 14, Sousse 4061, Tunisia; [Khebour, Faiza Allouche] Higher Inst Agron Chott Mariem, Sousse 4061, Tunisia; [Attia, Faouzi] AgroNutrition, Toulouse, France; [Attia, Faouzi] 3 Ave Orchidee,Parc Activestre, F-31390 Carbonne, France; [Provenzano, Giuseppe] Univ Palermo, Dept Agr Food & Forest Sci, Viale Sci 12,Bld 4, I-90128 Palermo, Italy
推荐引用方式 GB/T 7714	Mezghani, Mouna Aiachi,Mguidiche, Amel,Khebour, Faiza Allouche,et al. Water Status and Yield Response to Deficit Irrigation and Fertilization of Three Olive Oil Cultivars under the Semi-Arid Conditions of Tunisia[J],2019,11(17).
APA	Mezghani, Mouna Aiachi,Mguidiche, Amel,Khebour, Faiza Allouche,Zouari, Imen,Attia, Faouzi,&Provenzano, Giuseppe.(2019).Water Status and Yield Response to Deficit Irrigation and Fertilization of Three Olive Oil Cultivars under the Semi-Arid Conditions of Tunisia.SUSTAINABILITY,11(17).
MLA	Mezghani, Mouna Aiachi,et al."Water Status and Yield Response to Deficit Irrigation and Fertilization of Three Olive Oil Cultivars under the Semi-Arid Conditions of Tunisia".SUSTAINABILITY 11.17(2019).