Productivity of olive trees with different water status and crop load

Gucci, Riccardo; Lodolini, E.M.; Rapoport, Hava F.

doi:10.1080/14620316.2007.11512286

Cited by 118 publications

(116 citation statements)

References 34 publications

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“…In these, as in other data (Gucci et al 2007), oil production is more closely related to fruit number than fruit oil content and the two parameters are not independent. Fruit number is a more important determinant of yield because it varies relatively over a much wider range than does fruit oil content and because as fruit number increases, fruit oil content decreases (Table 5).…”

Section: Oil Yield and Its Componentssupporting

confidence: 58%

“…Although floral induction starts in mid summer, around pit hardening, and finishes in autumn (Rallo and Cuevas 2008), DI-J enhanced flower initiation such that in 2009 there were significantly more fruits per bud compared to DI-A (Table 2). Gucci et al (2007) observed that severe water stress during summer and autumn increased inflorescences per flowering shoot. Fruit number was highest in DI-J but not significantly different to the other irrigation treatments (Table 4).…”

Section: Oil Yield In Relation To Irrigationmentioning

confidence: 97%

“…Summer is the period when irrigation water can best be conserved with least reduction in fruit and oil production (Goldhamer 1999), but the timing and intensity of deficit irrigation during that time has yet to be established. Previous studies have evaluated deficit irrigation during both summer and autumn, and found that deficit irrigation affects oil synthesis (Gucci et al 2007;MartinVertedor et al 2011;Moriana et al 2003;Motilva et al 2000;Patumi et al 2002).…”

Section: Introductionmentioning

confidence: 99%

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Summer deficit-irrigation strategies in a hedgerow olive orchard cv. ‘Arbequina’: effect on fruit characteristics and yield

Gómez-del-Campo

2011

Irrig Sci

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Maximum production in hedgerow olive orchards is likely not achieved with maximum evapotranspiration over the long-term. Thus, regulated deficit irrigation (RDI) should be considered as a management option. Four irrigation treatments were evaluated during the summer when olive is most drought resistant. Control (CON) was irrigated to maintain the rootzone close to field capacity. Severe water deficit was applied by irrigating 30% CON from end of fruit drop to end July (DI-J) and from end July until beginning of oil synthesis (DI-A). Less severe water deficit was applied during July and August (DI-JA) by irrigating 50% CON. Flowering, fruiting, abscission, fruit development, fresh and dry weight of fruits, and oil production were evaluated. There were not significant differences in number of buds initiated, number of fruits per inflorescence and fruit drop. Oil production was significantly different between irrigation treatments in all experimental years. CON produced more oil and fruit with higher oil% than DI-A and DI-JA. Oil production of DI-J was not significantly reduced compared to CON and oil% was greater. DI-J was the most effective RDI strategy; with 16% less applied water relative to CON average loss in oil production of 8% was not significantly different to CON. While DI-JA saved most water (27%), oil production was reduced by 15%. Greatest loss in oil production (21%) was observed in DI-A with water saving of 22%.

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Section: Oil Yield and Its Componentssupporting

confidence: 58%

Section: Oil Yield In Relation To Irrigationmentioning

confidence: 97%

Section: Introductionmentioning

confidence: 99%

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Summer deficit-irrigation strategies in a hedgerow olive orchard cv. ‘Arbequina’: effect on fruit characteristics and yield

Gómez-del-Campo

2011

Irrig Sci

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“…No negative effects were registered on fruit and oil yields, nor on yield components compared to the 100% of ETc supply, by reducing the irrigation to a 35-50% of the ETc through regulated deficit or complementary irrigation in different areas characterized by a sub-humid Mediterranean climatic conditions (Alegre et al, 2002;Gucci et al, 2007;Servili et al, 2007;Caruso et al, 2013).…”

Section: Climatic Conditionsmentioning

confidence: 99%

“…Several studies have also recognized positive effects of an increased water supply to olive trees starting from 30% of the ETc return compared to rain-fed conditions on the fruit size, pulpto-pit ratio, mesocarp cell size, and oil content at harvest (Lavee et al, 1990;Inglese et al, 1996;Proietti & Antognozzi, 1996;Costagli et al, 2003;Lodolini et al, 2011;Gucci et al, 2007Gucci et al, , 2009Gucci et al, , 2011.…”

Section: Climatic Conditionsmentioning

confidence: 99%

Effect of complementary irrigation on yield components and alternate bearing of a traditional olive orchard in semi-arid conditions

Lodolini

Polverigiani

Ali³

et al. 2016

Span. j. agric. res.

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Traditional olive orchards are usually not irrigated in the Mediterranean basin, but at those latitudes, the yearly rainfall is frequently insufficient to support equilibrated vegetative growth and high fruit and oil production. This three-year field study investigated the effect of complementary irrigation on olive tree vegetative growth, fruit and oil yield during a biennial alternate bearing cycle in a traditional grove under semi-arid conditions. Adult olive trees (Olea europaea L. cv. Nabali Baladi) were subjected to complementary irrigation in 2011 and 2012 ('on' and 'off' years, respectively) with 6, 10, 15 or 20 m3 of water per tree per season, which corresponded to 14.2%, 23.8%, 35.7% and 47.6% of the whole seasonal evapotranspiration (42 m3 of water per year), respectively. Rain-fed trees were used as control. In 2013, no complementary irrigation was supplied, and any residual effects on the yield components were determined. Results showed that none of the irrigation regimes affected vegetative growth, or olive fruit size (mesocarp and endocarp), as fresh and dry weights. The fruit and oil yield per tree increased compared to the rain-fed conditions only when the threshold of 15 m3 was exceeded, thus inducing a higher crop load compared to the rain-fed control during the 'off' and even further during the 'on' year. No residual effects were registered in 2013. The study showed that complementary irrigation of at least 35% of the seasonal water requirement can produce remarkable positive effects on fruit yield especially during 'on' bearing years.

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Oil accumulation in intact olive fruits measured by near infrared spectroscopy–acousto‐optically tunable filter

et al. 2012

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Productivity of olive trees with different water status and crop load

Cited by 118 publications

References 34 publications

Summer deficit-irrigation strategies in a hedgerow olive orchard cv. ‘Arbequina’: effect on fruit characteristics and yield

Summer deficit-irrigation strategies in a hedgerow olive orchard cv. ‘Arbequina’: effect on fruit characteristics and yield

Effect of complementary irrigation on yield components and alternate bearing of a traditional olive orchard in semi-arid conditions

Oil accumulation in intact olive fruits measured by near infrared spectroscopy–acousto‐optically tunable filter

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