Knowledge Resource Center for Ecological Environment in Arid Area
Water Productivity and Yield Response Factor in Two Cultivars of Processing Tomato as Affected by Deficit Irrigation under Semi-Arid Climate Conditions | |
Patane, C.1; La Rosa, S.1; Pellegrino, A.1; Sortino, O.2; Saita, A.2 | |
通讯作者 | Patane, C. |
会议名称 | VII International Symposium on Irrigation of Horticultural Crops |
会议日期 | JUL 16-20, 2012 |
会议地点 | Geisenheim, GERMANY |
英文摘要 | Processing tomato is a high water demanding crop, thus requiring irrigation throughout the growing season in arid and semiarid environments. In these areas, maximizing water productivity is more important than maximizing yield. The application of deficit irrigation (DI) strategies to this crop may greatly contribute to save irrigation water. A field experiment was carried out in 2003 in a typical semi-arid Mediterranean environment of Southern Italy, in order to assess the effects of DI upon water productivity in two cultivars of processing tomato ('Solerosso' and 'Season'). Four irrigation treatments were studied: no irrigation following plant establishment (V0); 100% (V100), 50% (V50) and 25% (V25) evapotranspiration (ETc) restoration up to fruit maturity. DI differently affected fruit yield of the two cultivars: 'Solerosso' produced considerably less under water deficit conditions, whilst 'Season' kept high yield levels in all DI regimes. Water productivity progressively increased with the decrease of the amount of water distributed, reaching its maximum under V0 water regime. Water use efficiency (WUE) was positively affected by DI in both cultivars, suggesting that the crop does not benefit from the water when total crop requirements are fulfilled for the whole season. WUE variation in response to DI was more evident in cv. 'Season', whose WUE in V50 was 60% greater than that calculated for V100. The yield response factor Ky, which indicates the level of tolerance of a crop to water deficit (the greater Ky the lower the tolerance), was higher in 'Solerosso' (0.728) compared to 'Season' (0.309). This reveals a greater tolerance of this last cultivar to water shortage. In this respect, Ky may be a valuable tool in varietal screening for water deficit tolerance and, thus, for deficit irrigation adaptability evaluation in processing tomato. |
英文关键词 | Lycopersicon esculentum Mill |
来源出版物 | VII INTERNATIONAL SYMPOSIUM ON IRRIGATION OF HORTICULTURAL CROPS |
ISSN | 0567-7572 |
出版年 | 2014 |
卷号 | 1038 |
页码 | 449-454 |
EISBN | 978-94-62610-26-2 |
出版者 | INT SOC HORTICULTURAL SCIENCE |
类型 | Proceedings Paper |
语种 | 英语 |
国家 | Italy |
收录类别 | CPCI-S |
WOS记录号 | WOS:000343887500055 |
WOS关键词 | CARTHAMUS-TINCTORIUS L. ; USE EFFICIENCY ; BIOMASS |
WOS类目 | Agricultural Engineering ; Horticulture |
WOS研究方向 | Agriculture |
资源类型 | 会议论文 |
条目标识符 | http://119.78.100.177/qdio/handle/2XILL650/303366 |
作者单位 | 1.CNR, Ist Valorizzaz Legno & Specie Arboree IVALSA, Catania, Italy; 2.Univ Catania, DISPA, Catania, Italy |
推荐引用方式 GB/T 7714 | Patane, C.,La Rosa, S.,Pellegrino, A.,et al. Water Productivity and Yield Response Factor in Two Cultivars of Processing Tomato as Affected by Deficit Irrigation under Semi-Arid Climate Conditions[C]:INT SOC HORTICULTURAL SCIENCE,2014:449-454. |
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