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Effect of leaf-to-fruit ratio and girdling on gas exchanges, fruit growth and carbohydrate contents at different stages of fruit development of Olea europaea L. 'Picholine'

(2012) Acta Horticulturae. 924. p.77-81
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Abstract
The effects of different source-sink ratios on fruit quality were studied for the table olive cultivar ‘Picholine’. This cultivar represents 15% of the production of table olives in Tunisia. Fruit size is an important quality parameter for table olives as small fruits have lower economical value. Three tertiary branches/tree were selected on 27-years-old olive trees (10 trees in total) at the start of the growing season 2009. After fruit set in early May four fruit-to-leaf ratios were imposed on 1-year-old wood (no fruits, 1:1, 1:2, 1:3) of each branch. Apexes of all shoots were removed in order to reduce the vegetative sinks. In mid-July five trees were randomly selected and all branches were girdled. The absence of fruits or girdling decreased leaf net photosynthetic rate (An) and increased leaf carbohydrate contents. Girdling stimulated fruit growth, while the effect of leaf-to-fruit ratio was less pronounced.
Keywords
fruit quality, soluble sugars, olive tree, photosynthesis, source-sink relations, PHOTOSYNTHESIS, CITRUS, ABSCISSION, CULTIVARS, BRANCHES, PEACH

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Citation

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Chicago
Haouari, Afef, Marie-Christine Van Labeke, Hechmi Chehab, Fethi Ben Mariem, Kathy Steppe, and Braham Mohammed. 2012. “Effect of Leaf-to-fruit Ratio and Girdling on Gas Exchanges, Fruit Growth and Carbohydrate Contents at Different Stages of Fruit Development of Olea Europaea L. ‘Picholine’.” In Acta Horticulturae, ed. Joan Tous, Riccardo Gucci, and F Fevereiro, 924:77–81. Leuven, Belgium: International Society for Horticultural Science (ISHS).
APA
Haouari, A., Van Labeke, M.-C., Chehab, H., Ben Mariem, F., Steppe, K., & Mohammed, B. (2012). Effect of leaf-to-fruit ratio and girdling on gas exchanges, fruit growth and carbohydrate contents at different stages of fruit development of Olea europaea L. “Picholine.” In J. Tous, R. Gucci, & F. Fevereiro (Eds.), Acta Horticulturae (Vol. 924, pp. 77–81). Presented at the 28th International Horticultural Congress on Science and Horticulture for People (IHC2010) ; Olive Trends Symposium : From the olive tree to olive oil : new trends and future challenges, Leuven, Belgium: International Society for Horticultural Science (ISHS).
Vancouver
1.
Haouari A, Van Labeke M-C, Chehab H, Ben Mariem F, Steppe K, Mohammed B. Effect of leaf-to-fruit ratio and girdling on gas exchanges, fruit growth and carbohydrate contents at different stages of fruit development of Olea europaea L. “Picholine.”In: Tous J, Gucci R, Fevereiro F, editors. Acta Horticulturae. Leuven, Belgium: International Society for Horticultural Science (ISHS); 2012. p. 77–81.
MLA
Haouari, Afef, Marie-Christine Van Labeke, Hechmi Chehab, et al. “Effect of Leaf-to-fruit Ratio and Girdling on Gas Exchanges, Fruit Growth and Carbohydrate Contents at Different Stages of Fruit Development of Olea Europaea L. ‘Picholine’.” Acta Horticulturae. Ed. Joan Tous, Riccardo Gucci, & F Fevereiro. Vol. 924. Leuven, Belgium: International Society for Horticultural Science (ISHS), 2012. 77–81. Print.
@inproceedings{2097396,
  abstract     = {The effects of different source-sink ratios on fruit quality were studied for the table olive cultivar {\textquoteleft}Picholine{\textquoteright}. This cultivar represents 15\% of the production of table olives in Tunisia. Fruit size is an important quality parameter for table olives as small fruits have lower economical value. Three tertiary branches/tree were selected on 27-years-old olive trees (10 trees in total) at the start of the growing season 2009. After fruit set in early May four fruit-to-leaf ratios were imposed on 1-year-old wood (no fruits, 1:1, 1:2, 1:3) of each branch. Apexes of all shoots were removed in order to reduce the vegetative sinks. In mid-July five trees were randomly selected and all branches were girdled. The absence of fruits or girdling decreased leaf net photosynthetic rate (An) and increased leaf carbohydrate contents. Girdling stimulated fruit growth, while the effect of leaf-to-fruit ratio was less pronounced.},
  author       = {Haouari, Afef and Van Labeke, Marie-Christine and Chehab, Hechmi and Ben Mariem, Fethi and Steppe, Kathy and Mohammed, Braham},
  booktitle    = {Acta Horticulturae},
  editor       = {Tous, Joan and Gucci, Riccardo and Fevereiro, F},
  isbn         = {9789066055940},
  issn         = {0567-7572},
  keyword      = {fruit quality,soluble sugars,olive tree,photosynthesis,source-sink relations,PHOTOSYNTHESIS,CITRUS,ABSCISSION,CULTIVARS,BRANCHES,PEACH},
  language     = {eng},
  location     = {Lisbon, Portugal},
  pages        = {77--81},
  publisher    = {International Society for Horticultural Science (ISHS)},
  title        = {Effect of leaf-to-fruit ratio and girdling on gas exchanges, fruit growth and carbohydrate contents at different stages of fruit development of Olea europaea L. 'Picholine'},
  url          = {http://www.actahort.org/members/showpdf?booknrarnr=924\_8},
  volume       = {924},
  year         = {2012},
}

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