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Effects of moderate and severe iron deficiency chlorosis on fruit yield, appearance and composition in pear (Pyrus communis L.) and peach (Prunus persica (L.) Batsch)
- Source :
- Digital.CSIC. Repositorio Institucional del CSIC, instname
- Publication Year :
- 2011
- Publisher :
- Elsevier BV, 2011.
-
Abstract
- 7 Pag., 5 Tabl., 1 Fig. The definitive version is available at: http://www.sciencedirect.com/science/journal/00988472<br />The effects of different levels of Fe-deficiency chlorosis on the fruit yield, appearance and composition of pear and peach trees grown in field orchards have been studied. The major effect of Fe deficiency in both species was a large yield reduction, even when chlorosis was moderate, associated to decreases in fruit tree load. Fruit size increased with moderate chlorosis in both species and decreased with severe chlorosis in peach. In peach, moderate or severe chlorosis affected uniformly all branches, leading to firmer fruits with higher acidity, total phenolics and carboxylates. This indicates a delayed maturity that can be attributed to a low C-availability for fruits. In Fe-deficient pear trees, the majority of fruits (98%) were on non-chlorotic or moderately chlorotic branches, and fruits were less green and firm with an increased sugars/acids ratio. This indicates an advanced fruit maturity that can be attributed to an increased C-availability for fruits. All chlorosis levels increased within-tree variation in fruit appearance.<br />Study supported by the Spanish Ministry of Science and Innovation (projects AGL2006-1416 and AGL2009-09018 co-financed with FEDER), the European Commission (Thematic Priority 5-Food Quality and Safety, 6th Framework RTD Programme, Contract no. FP6-FOOD–CT-2006-016279) and the Aragón Government (group A03).
- Subjects :
- Fructification
PEAR
Chlorosis
biology
Iron deficiency
Rosaceae
food and beverages
Plant Science
Fruit appearance
biology.organism_classification
Iron chlorosis
Prunus
Fruit load
Agronomy
Iron deficiency (plant disorder)
Fruit composition
Agronomy and Crop Science
Fruit maturity
Ecology, Evolution, Behavior and Systematics
Fruit tree
Pyrus communis
Subjects
Details
- ISSN :
- 00988472
- Volume :
- 71
- Database :
- OpenAIRE
- Journal :
- Environmental and Experimental Botany
- Accession number :
- edsair.doi.dedup.....161e525255fffb3a5ce9197b987a25fc