Relationship between reproductive behavior and new shoot development in 5-year-old branches of olive trees (Olea europaea L.)

Castillo-Llanque, Franco; Rapoport, Hava F.

doi:10.1007/s00468-011-0558-6

Cited by 49 publications

(34 citation statements)

References 29 publications

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“…In all cases, the sprouts elongation finished at the end of summer (255 DOY) when oil accumulation started. Indeed during this last period, when daily temperatures decrease, there is a strong competition between the nutritional resources allocated to the vegetative organs and those ones allocated to fruits [27,28]. In the high-density orchard no sprouts elongation was ever observed in autumn: it disagree with what commonly reported in more arid Mediterranean climate especially for medium-low densities cropping systems [22,23].…”

Section: Apical Sprouts Elongationcontrasting

confidence: 52%

Sprouts seasonal elongation of two olive cultivars in a high-density orchard

Strippoli¹,

Vivaldi²,

Camposeo

et al. 2013

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The new high-density cropping systems (>1200 trees ha −1 ) represent a very interesting proposal for olive orchard profitability. It is crucial to know the morphology and the dynamics of sprout elongation of a cultivar in order to fully assess its suitability for a high-density olive orchard. For this reason we planned a research on two cultivars, Coratina and Arbequina, in a high-density orchard. The apical sprouts elongation of Arbequina early stopped at fruit set without a further step, while Coratina showed a little growth flux after pit hardening. Similar trends showed the lateral proleptic sprouts. Only the sylleptic sprouts of both cultivars had a second period of activity. In all cases, the sprouts elongation finished at the end of summer, when oil accumulation started. Coratina showed higher apical shoot growth and internodes mean length than Arbequina. On the contrary, Coratina showed lower lateral proleptic shoot growth and nodes number than Arbequina, but the same internodes mean length. No significant differences were observed between cultivars for growth, nodes number and internodes mean length of sylleptic shoots. The differences observed between the two cultivars could be explained considering their different vigour. The introduction of this innovative cropping system is allowed to register a considerable reduction of production costs. The result is a considerable increase in the economic performance of the olive grove and a consequent reduction in the unit cost for kg of oil. These data are very useful for varietal choice and field management in high-density orchards and then for new olive breeding programs.

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Section: Apical Sprouts Elongationcontrasting

confidence: 52%

Sprouts seasonal elongation of two olive cultivars in a high-density orchard

Strippoli¹,

Vivaldi²,

Camposeo

et al. 2013

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“…Both reproductive shoot percentage and flowering have been reported to be substantially higher in previously non-bearing olive trees [18]. The relationship between the reproductive behaviour and new shoot development has been studied on the olive cultivar ‘Hojiblanca’, showing that even though new shoots development was higher for non-bearing years, shoots were predominantly of short length during both bearing and non-bearing years [22].…”

Section: Introductionmentioning

confidence: 99%

QTL Mapping of Flowering and Fruiting Traits in Olive

et al. 2013

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One of the challenge fruit growers are facing is to balance between tree production and vegetative growth from year to year. To investigate the existence of genetic determinism for reproductive behaviour in olive tree, we studied an olive segregating population derived from a cross between ‘Olivière’ and ‘Arbequina’ cultivars. Our strategy was based on (i) an annual assessment of individual trees yield, and (ii) a decomposition of adult growth units at the crown periphery into quantitative variables related to both flowering and fruiting process in relation to their growth and branching. Genetic models, including the year, genotype effects and their interactions, were built with variance function and correlation structure of residuals when necessary. Among the progeny, trees were either ‘ON’ or ‘OFF’ for a given year and patterns of regular vs. irregular bearing were revealed. Genotype effect was significant on yield but not for flowering traits at growth unit (GU) scale, whereas the interaction between genotype and year was significant for both traits. A strong genetic effect was found for all fruiting traits without interaction with the year. Based on the new constructed genetic map, QTLs with small effects were detected, revealing multigenic control of the studied traits. Many were associated to alleles from ‘Arbequina’. Genetic correlations were found between Yield and Fruit set at GU scale suggesting a common genetic control, even though QTL co-localisations were in spe`cific years only. Most QTL were associated to flowering traits in specific years, even though reproductive traits at GU scale did not capture the bearing status of the trees in a given year. Results were also interpreted with respect to ontogenetic changes of growth and branching, and an alternative sampling strategy was proposed for capturing tree fruiting behaviour. Regular bearing progenies were identified and could constitute innovative material for selection programs.

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“…In fact, in olive, it is well established that vegetative growth is more abundant in off (i.e., with low yield) years (Castillo-Llanque and Rapoport, 2011;Fern andez et al, 2015;Lavee, 2007). Trees that spend more energy on production are expected to grow less vegetation because reproductive and vegetative growth compete for the same sources within a tree (Grossman and DeJong, 1994 Salazar-García et al, 1998;Stevenson and Shackel, 1998) including olive (CastilloLlanque and Rapoport, 2011;Connor and Fereres, 2005;Dag et al, 2010;Fern andez et al, 2015;Monselise and Goldschmidt, 1982;Rallo and Su arez, 1989).…”

Section: Resultsmentioning

confidence: 99%

“…If a tree spends more of the available resources into producing fruits, it can only grow less as a result (Grossman and DeJong, 1994). Competition between vegetative and reproductive growth is well established in several tree species (Berman and DeJong, 2003;Costes et al, 2000;Lauri and T erouanne, 1999;Salazar-García et al, 1998;Stevenson and Shackel, 1998) including olive (Castillo-Llanque and Rapoport, 2011;Connor and Fereres, 2005;Dag et al, 2010;Fern andez et al, 2015;Monselise and Goldschmidt, 1982;Rallo and Su arez, 1989). However, very few studies considered young trees and no relationship between tree initial growth and cumulative yield was found (Moutier, 2006).…”

mentioning

confidence: 99%

Growth Is Inversely Correlated with Yield Efficiency across Cultivars in Young Olive (Olea europaea L.) Trees

Rosati¹,

Paoletti²,

Pannelli³

et al. 2017

horts

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Additional index words. modeling, yield efficiency, partitioning, harvest indexAbstract. The modern olive industry is increasingly interested in olive cultivars that start producing early and remain relatively small, because they are suitable for super highdensity orchards. Some cultivars are better suited to this than others but it is not clear why. Understanding the mechanisms that lead to early production and reduced canopy size is therefore important. The object of this study was to investigate whether differences in vigor across olive cultivars are related to earliness and abundance of bearing. We analyzed tree growth and productivity in young coetaneous trees of 12 olive cultivars, grown together in the same orchard. Trunk diameter increased over the observation period, reaching significantly different values across cultivars. Canopy volume also increased, reaching 2-fold differences between the minimum and the maximum values. Cumulative yield increased, reaching up to 3-fold differences. When the cumulative yield at the end of the experiment was plotted against the final trunk diameter, no correlation was found. A significant correlation was found when cumulative yield was plotted against the increment in trunk diameter during the observation period for which yield data were collected. This relationship improved (i.e., R 2 rose from 0.57 to 0.83) when yield efficiency [i.e., cumulative yield per unit of final trunk cross-sectional area (TCSA) or per unit of canopy volume] was used instead of yield. These results clearly showed that trees that produced proportionally more (i.e., higher yield efficiencies) grew less. We conclude that, in young olive trees, vigor is inversely related to early bearing efficiency, which differs significantly across cultivars. The results support the hypothesis that early and abundant bearing is a major factor in explaining differences in vigor across olive cultivars.The olive industry requires canopy reduction to allow super high-density orchards which permit earlier production and continuous mechanical harvesting (Rallo et al., 2007;Tous et al., 1999). This has stimulated much research into reduced vigor or even dwarf cultivars

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Relationship between reproductive behavior and new shoot development in 5-year-old branches of olive trees (Olea europaea L.)

Cited by 49 publications

References 29 publications

Sprouts seasonal elongation of two olive cultivars in a high-density orchard

Sprouts seasonal elongation of two olive cultivars in a high-density orchard

QTL Mapping of Flowering and Fruiting Traits in Olive

Growth Is Inversely Correlated with Yield Efficiency across Cultivars in Young Olive (Olea europaea L.) Trees

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