Determination of Pollen Fertility of Some Cut Rose Varieties in Different Periods
Öz
In rose breeding by hybridization, the viable pollen and germination rate of the male parent increases the rate of successful pollination. Therefore, a good variety of pollinators is always needed in hybridization studies. This study was carried out at Ankara University, Faculty of Agriculture, Department of Horticulture to determine pollen viability and germination rates of Magnum, Harmonie and Lady Rose cultivars at three different periods (May, June and July) during flowering. The pollen viability rate was determined by "IKI test" and the pollen germination rate was determined by " saturated petri dish method". According to the data obtained from the study, the pollen viability rate showed significant differences among cultivars and within months. The highest pollen viability rate was observed in Harmonie variety in July (51.00%) and the lowest pollen viability rate was observed in Lady Rose variety in June (16.19%). The highest pollen germination rate was obtained from Harmonie variety with 19.84%. In all three varieties, the highest values in terms of both viable pollen and germination rates were found in July.
Anahtar Kelimeler
Cut rose, Breeding, IKI, Pollen viability
Teşekkür
This study was presented at the 8th National Ornamental Plants Congress.
Kaynakça
- Anand, P., Raju, D.V.S. (2016). Effect of seasonal variation on pollen viability and hip set in rose. Journal of Ornamental Horticulture, 19(1-2), 1-6.
- Datta, S. K. (2018). Breeding of new ornamental varieties: Rose. Current Scıence, VOL.114(6), NO.1194-1206.
- Ercişli, S. (2007). Determination of pollen viability and in vitro pollen germination of Rosa dumalis and Rosa villosa. Bangladesh Journal of Botany, 36(2), 185-187.
- Eti, S. (1990). Çiçek tozu miktarını belirlemede kullanılan pratik bir yöntem. Çukurova Üniversitesi Ziraat Fakültesi Dergisi, 5(4), 49-58.
- Giovannini, A., Macovei, A., Caser, M., Mansuino, A., Ghione, G.G., Savona, M., Carbonera, D., Scariot, V. ve Balestrazzi, A. (2017). Pollen grain preservation and fertility in valuable commercial rose cultivars. Plants, 6(17), 1-8. doi: 10.3390/plant6020017. PMID: 28441780; PMCID: PMC5489789.
- Gudin, S. (1992). Influence of bud chilling on subsequent reproductive fertility in roses. Scientia Hort. 51, 139-144.
- Gudin, S. (2000). Rose: genetics and breeding. Plant Breed. Rev., 17, 159-189.
- Gudin, S. (2001). Rose breedıng technologıes. Proc. III IS Rose Research. Eds. N. Zieslin & H. Agbaria. Acta Hort. 547, ISHS 2001.
- Imrak, B. (2010). ‘Bazı kiraz çeşitlerinin subtropik iklim koşullarındaki performansları ve çoklu dişi organ oluşumu sorununun çözümüne ilişkin araştırmalar’. Doktora Tezi, Çukurova Üniversitesi, Fen Bilimleri Enstitüsü, Adana.
- Jacob Y, Ferrero F. (2003). Pollen grains and tubes. In: Roberts AV, Debener T, Gudin S (Eds). Encyclopedia of Rose Science Vol 2, Elsevier pp 518-523.