Abstract

The aim of this paper is to investigate the influence of the radiometric properties of coloured nets on cherry tree photomorphogenesis. A field experimental test using coloured nets for the protection of cherry trees was carried out. Different coloured nets (BLUE, RED, PEARL, GREY and YELLOW), characterised by a nominal shading factor of 40%, and a NEUTRAL net with a nominal 12% shading factor were tested. Cherry trees in OPEN FIELD conditions were used as control. The effects of the nets on the trees growth were correlated with the radiometric properties of the nets, which were evaluated by means of laboratory tests. The RED and BLUE nets influenced mainly the B/FR ratio: the former net decreased and the latter increased the B/FR ratio. The nets influenced the annual trunk growth of the trees: respect to OPEN FIELD (100%), the highest increase was induced for the trees grown under the NEUTRAL net (132%), followed by the YELLOW (121%), the BLUE (120%), the PEARL (111%) and the RED (106%) net while the lowest was recorded under the GREY net (79%). The NEUTRAL net (-3 d) and the YELLOW net (-1.5 d) influenced fruit maturity advancing harvest, while the other nets retarded the ripening time: RED (+2 d), BLUE (+2.5 d), PEARL (+3.5 d) and GREY (+4 d).

Autore Pugliese

• Schettini Evelia , Scarascia Mugnozza Giacomo , Vox Giuliano

Tutti gli autori

• SCHETTINI E.;SCARASCIA MUGNOZZA G.;VOX G.

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Anno di pubblicazione

2010

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Nessuna citazione

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