Numerous varieties of Vitis vinifera ssp. sativa, cultivated in Emilia (the western part of Emilia-Romagna Region), have been examined in order to individuate cultivars with a normally developed gynoecium but refexed stamens. Micro-morphological investigations focused on flower morpho-functional characterization of three of these cultivars: Malbo gentile, Lambrusco di Sorbara, Lambrusco Montericco, in comparison with, the hermaphrodite flowers of Lambrusco salamino and the seedless Termarina rossa. The presence of reflexed stamens resulted associated to the production of viable but morphologically anomalous pollen, lacking furrows and pores (acolporated pollen), therefore not able to let pollen tube growth. The flowers of Lambrusco salamino and Termarina rossa showed erect stamens, viable and tricolporate pollen. The investigations conduced until now did not clarify the reasons for low productivity often observed for Termarina rossa. The results here obtained have been related with those reported from OIV and IPGRI descriptors, relatively to the morphologically hermaphrodite but functionally female flowers. Key-word: grapevine, gynoecium, stamens, pollen, pollen germinability, viability, productivity.

Morfologia, anatomia e funzionalità dei fiori in vitigni emiliani / Sgarbi, Elisabetta; Barbieri, Cristina; Olmi, Linda; Imazio, Serena Anna; Bignami, Cristina. - In: QUADERNI DI SCIENZE VITICOLE ED ENOLOGICHE.... - ISSN 1970-6545. - STAMPA. - 32, 2011-2012:(2013), pp. 403-407. (Intervento presentato al convegno IV° Convegno Nazionale di Viticoltura tenutosi a Asti nel 10-12 luglio 2012).

Morfologia, anatomia e funzionalità dei fiori in vitigni emiliani

SGARBI, Elisabetta;BARBIERI, CRISTINA;OLMI, Linda;IMAZIO, Serena Anna;BIGNAMI, Cristina
2013

Abstract

Numerous varieties of Vitis vinifera ssp. sativa, cultivated in Emilia (the western part of Emilia-Romagna Region), have been examined in order to individuate cultivars with a normally developed gynoecium but refexed stamens. Micro-morphological investigations focused on flower morpho-functional characterization of three of these cultivars: Malbo gentile, Lambrusco di Sorbara, Lambrusco Montericco, in comparison with, the hermaphrodite flowers of Lambrusco salamino and the seedless Termarina rossa. The presence of reflexed stamens resulted associated to the production of viable but morphologically anomalous pollen, lacking furrows and pores (acolporated pollen), therefore not able to let pollen tube growth. The flowers of Lambrusco salamino and Termarina rossa showed erect stamens, viable and tricolporate pollen. The investigations conduced until now did not clarify the reasons for low productivity often observed for Termarina rossa. The results here obtained have been related with those reported from OIV and IPGRI descriptors, relatively to the morphologically hermaphrodite but functionally female flowers. Key-word: grapevine, gynoecium, stamens, pollen, pollen germinability, viability, productivity.
2013
IV° Convegno Nazionale di Viticoltura
Asti
10-12 luglio 2012
32, 2011-2012
403
407
Sgarbi, Elisabetta; Barbieri, Cristina; Olmi, Linda; Imazio, Serena Anna; Bignami, Cristina
Morfologia, anatomia e funzionalità dei fiori in vitigni emiliani / Sgarbi, Elisabetta; Barbieri, Cristina; Olmi, Linda; Imazio, Serena Anna; Bignami, Cristina. - In: QUADERNI DI SCIENZE VITICOLE ED ENOLOGICHE.... - ISSN 1970-6545. - STAMPA. - 32, 2011-2012:(2013), pp. 403-407. (Intervento presentato al convegno IV° Convegno Nazionale di Viticoltura tenutosi a Asti nel 10-12 luglio 2012).
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11380/1034115
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