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Title: Collection time, cutting age, IBA and putrescine effects on root formation in Corylus avellana L. cuttings
Authors: Cristofori, Valerio
Rouphael, Youssef
Rugini, Eddo
Keywords: Hazelnut;Indole-3-butyric acid;Polyamine;1,4-Diaminobutane;Percent rooting;Callus
Issue Date: 2010
Publisher: Elsevier
Source: Cristofori V., Rouphael Y., Rugini E. 2010. Collection time, cutting age, IBA and putrescine effects on root formation in Corylus avellana L. cuttings. "Scientia Horticulturae" 124(2): 189-194
The effects of collection time, cutting age, indole-3-butyric acid (IBA) and putrescine application on the
rooting of cuttings of Italian hazelnut cultivars ‘Tonda Gentile Romana’, ‘Tonda di Giffoni’ and
‘Nocchione’ were investigated. Samples collected during late June, late July and early September from
newly formed and 1-year old part of twigs to be utilized to produce leafy cuttings, after being treated
with 1000 and 2000 ppm IBA, respectively. In addition, the September cuttings were also treated,
respectively, with 1000 and 2000 ppm IBA and 1600 ppm putrescine. Rooting ability was evaluated 2
months after planting for each treatment and collection time. Satisfactory rooting of hazelnut leafy
cuttings was observed when collection time occurred in June and September, whereas leafy cuttings
collected in July showed a limited capacity of rooting in all cultivars tested. On average, the rooting of the
newly formed leafy cuttings was more than the 1-year old cuttings. Rooting was also promoted by IBA
treatments, mainly in ‘Nocchione’ and ‘Tonda di Giffoni’. In contrast, young cuttings collected from
‘Tonda Gentile Romana’ in early September rooted poorly when treated with IBA alone, but showed the
best rooting ( 80%) after the application of a combination of 1000 ppm IBA and 1600 ppm putrescine.
The current findings confirmthat putrescine can be a useful substance for increasing rooting percentage
and root quality in cuttings of some hazelnut cultivars as obtained from‘Tonda Gentile Romana’ cultivar.
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ISSN: 0304-4238
DOI: 10.1016/j.scienta.2009.12.034
Appears in Collections:DIPROV - Archivio della produzione scientifica

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