Timing of the inhibitory effect of fruit on return bloom of ‘Valencia’ sweet orange (<i>Citrus sinensis</i>(L.) Osbeck)

Martínez‐Fuentes, Amparo; Mesejo, Carlos; Reig, Carmina; Agustí, Manuel

doi:10.1002/jsfa.4038

Cited by 44 publications

(46 citation statements)

References 24 publications

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“…High/low levels of endogenous GA in leaves from on/off-trees have been inversely/positively related to flower initiation (Koshita et al, 1999). This agrees with the reduced flowering intensity reported when GA 3 is applied in the floral bud inductive period (Guardiola et al, 1982;Monselise and Halevy, 1964), coinciding in time with the more pronounced fruit-inhibiting effect on flowering (Martínez-Fuentes et al, 2010). Furthermore, in Satsuma mandarin (Citrus unshiu Marc.…”

Section: Introductionsupporting

confidence: 76%

“…The fruit begins to exert an inhibitory effect on flowering from the time it completes its growth weight, and this coincides with the floral bud inductive period (November) (Martínez-Fuentes et al, 2010;Muñoz-Fambuena et al, 2011;Verreynne and Lovatt, 2009). In our experiments, however, advancing the treatment date from November to October did not improve the response in on-trees.…”

Section: Discussionmentioning

confidence: 99%

“…Monselise and Goldschmidt (1982) reviewed the main alternating fruit tree species, their horticultural features and methods of control. In Citrus, alternate bearing is quite common in seedy cultivars, although some late-ripening cultivars, interspecific hybrids and polyploidy genotypes (mainly triploids) are also known to alternate, the effect being dependant as well on the time the fruit remains on the tree (Martínez-Fuentes et al, 2010). Agustí (1987) reviewed causes of alternate bearing in Citrus and the methods of control.…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Fruit load restricts the flowering promotion effect of paclobutrazol in alternate bearing Citrus spp.

Martínez‐Fuentes

Mesejo

Muñoz-Fambuena

et al. 2013

Scientia Horticulturae

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Section: Introductionsupporting

confidence: 76%

Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Fruit load restricts the flowering promotion effect of paclobutrazol in alternate bearing Citrus spp.

Martínez‐Fuentes

Mesejo

Muñoz-Fambuena

et al. 2013

Scientia Horticulturae

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“…Girdling causes accumulation of carbohydrate within the girdled branch (Goldschmidt et al, 1985). Thus, these phenomena have indirectly demonstrated the involvement of carbohydrate in flowering, and the carbohydrate factor has been discussed in correlation with flowering (Garcia-Luis et al, 1995;Goldschmidt et al, 1985;Martínez-Fuentes et al, 2010).…”

Section: ) Flowering-affecting Factorsmentioning

confidence: 99%

Regulation of Floral Induction in Citrus

Nishikawa¹

2013

J. Japan. Soc. Hort. Sci.

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In the citrus industry, juvenility and alternate bearing are serious problems that cause lengthening of the breeding cycle and instability of annual fruit production, respectively. Both phenomena are closely related to flowering behavior: juvenility is caused by suppression of flowering in young plants and alternate bearing mainly results from suppression of flowering by fruit production. Many researchers have conducted studies into citrus flowering in a quest to resolve these problems. In recent years, molecular and genetic approaches to studying citrus flowering have been performed on the basis of studies on flowering-related genes in Arabidopsis. In Arabidopsis, the protein encoding a flowering-related gene, FLOWERING LOCUS T (FT), plays an important role in the promotion of flowering. Similarly, a citrus orthologue of FT (CiFT) has been confirmed to have a function in the promotion of flowering in citrus. In studies of transgenic plants, a CiFT co-expression vector has been already used to shorten the juvenile phase of citrus. In addition, endogenous expression of CiFT is closely correlated with flowering under various conditions, suggesting that endogenous CiFT may regulate floral induction. Considering the accumulating data, the regulation of CiFT expression is hypothesized to be essential to understand the mechanism of citrus flowering and studies on CiFT are expected to contribute to the resolution of flowering-related problems in citrus.

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“…During years of high crop load ('on' year), carbohydrate accumulation and fl owering are very low. After that, no direct effect on fl ower induction and differentiation processes could be found in mostly experimental evidences, although a quantitative but not determinant effect has been cited García-Luis et al 1995 ;Martínez-Fuentes et al 2010 ) . Most information has been generated in alternate bearing varieties, characterized by the lack of fl owering after an 'on' year.…”

Section: Carbohydrates and Nitrogenmentioning

confidence: 99%

Nutrient-Hormone Interactions in Citrus: Physiological Implications

Gravina

Gambetta

Rivas

2012

Advances in Citrus Nutrition

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Growth and development in woody perennial plants has many differences regarding to annual crops. After overcoming the juvenile stage, in which species are not able to produce fl owers, each annual cycle in perennials give rise to one or more fl ushes of vegetative and reproductive growth.Under tropical conditions, Citrus annually brings about several sprouting and blooms, whereas growing in temperate climates, only the spring fl ush is reproductive. In temperate zones, although several fl ushes of growth may occur, these are mostly vegetative. The exception is provided by lemon trees ( C . limon [L.] Burm.), which give rise to reproductive and vegetative shoots throughout the year.Vast information is available relating nutrition and water supply with fl owering and fruiting of Citrus . However, less information matching the controlling role of nutrients, carbohydrates, water and hormones during the developmental process is available. Therefore, hormonal and nutritional control of some Citrus developmental processes, with special emphasis on fl oral induction, fruit set, fruit development and maturation of Citrus has been focused in this chapter. AbstractCitrus growth and development is regulated by complex but subtly tuned nutritional and hormonal interaction in response to environmental signalling. Flower induction is stimulated by low temperatures and water stress and mediated by previous fruit load, being endogenous gibberellins (GAs) content pointed as the main inhibiting hormones. The promoting role of carbohydrates or nitrogen (N) on fl owering has not been demonstrated, but a minimum content of these compounds seems to be required for fl ower formation. Fruit set is a critical step for fruit production, being initially regulated by GAs content. Thereafter, during the onset of the source-sink competition, fruit set depends upon carbohydrates and N availability and fruitlets sink strength. During stage II of fruit development, fruit growth is promoted by auxins, carbohydrates and water accumulation. Afterwards, peel colour development, which is stimulated by low temperatures, is promoted by the decline of fl avedo's GAs content and the steady-state level of ethylene, as carbohydrates and abscisic acid (ABA) increase and N decrease during this fi nal stage.

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Timing of the inhibitory effect of fruit on return bloom of ‘Valencia’ sweet orange (Citrus sinensis(L.) Osbeck)

Cited by 44 publications

References 24 publications

Fruit load restricts the flowering promotion effect of paclobutrazol in alternate bearing Citrus spp.

Fruit load restricts the flowering promotion effect of paclobutrazol in alternate bearing Citrus spp.

Regulation of Floral Induction in Citrus

Nutrient-Hormone Interactions in Citrus: Physiological Implications

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