Published in

International Society for Horticultural Science (ISHS), Acta Horticulturae, 494, p. 155-160, 1999

DOI: 10.17660/actahortic.1999.494.22

Elsevier, Scientia Horticulturae, 1-2(85), p. 145-152

DOI: 10.1016/s0304-4238(99)00132-6

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Effects of leaf to fruit ratios on fruit growth in chestnut

Journal article published in 2000 by F. Famiani ORCID, P. Proietti ORCID, A. Palliotti, F. Ferranti, E. Antognozzi
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This paper is available in a repository.

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Abstract

In Castanea sativa Mill. cv. Santa Restituta, 10 days after full bloom, defoliation to give leaf-to-husk ratios of 2/1, 4/1, 7/1, 10/1 and 14/1 was performed on both girdled and ungirdled shoots fully exposed to the sun. The results showed that assimilates can be easily translocated and it is necessary to have about 10 leaves well exposed to light per husk (about five leaves per fruit) to ensure normal fruit development. Fruit is a stronger sink than shoot reserve tissues. A feedback inhibition of photosynthesis at high leaf-to-husk ratios is suggested.