Pollen Grain Preservation and Fertility in Valuable Commercial Rose Cultivars
AbstractIn the cut flower market, traditional breeding is still the best way to achieve new rose cultivars. The geographical delocalization of cultivar constitution (generally made in Europe and North America) and plant cultivation (large areas in Africa and South America) represents a limit point for crossing and selection. Rose breeders often need to overcome geographical distances, resulting in asynchrony in flowering among crossing parents, by storing and sending pollen. Hence, a key aspect in breeding programs is linked to pollen availability and conservation, jointly with the identification of parameters related to pollen fertility. In this study we present the results of three different trials. In the first, pollen diameter and pollen viability were chosen as fertility predictors of 10 Rosa hybrida commercial cultivars. In the second trial, aliquots of dried pollen grains of six R. hybrida cultivar were stored under two different temperatures (freezer at T = −20 °C and deep freezer at T = −80 °C) and after a wide range of conservation period, their viability was measured. In the third trial, the effective fertilization capacity of frozen pollen of 19 pollen donor cultivars was evaluated during 2015 crossing breeding plan, performing 44 hybridizations and correlating the number of seeds and the ratio seeds/crossing, obtained by each cultivar, with in vitro pollen germination ability. View Full-Text
Scifeed alert for new publicationsNever miss any articles matching your research from any publisher
- Get alerts for new papers matching your research
- Find out the new papers from selected authors
- Updated daily for 49'000+ journals and 6000+ publishers
- Define your Scifeed now
Giovannini, A.; Macovei, A.; Caser, M.; Mansuino, A.; Ghione, G.G.; Savona, M.; Carbonera, D.; Scariot, V.; Balestrazzi, A. Pollen Grain Preservation and Fertility in Valuable Commercial Rose Cultivars. Plants 2017, 6, 17.
Giovannini A, Macovei A, Caser M, Mansuino A, Ghione GG, Savona M, Carbonera D, Scariot V, Balestrazzi A. Pollen Grain Preservation and Fertility in Valuable Commercial Rose Cultivars. Plants. 2017; 6(2):17.Chicago/Turabian Style
Giovannini, Annalisa; Macovei, Anca; Caser, Matteo; Mansuino, Andrea; Ghione, Gian G.; Savona, Marco; Carbonera, Daniela; Scariot, Valentina; Balestrazzi, Alma. 2017. "Pollen Grain Preservation and Fertility in Valuable Commercial Rose Cultivars." Plants 6, no. 2: 17.
Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.