Methods for Rosa Germination

Anderson, Nicole P.; Byrne, D.H.

doi:10.17660/actahortic.2007.751.64

Cited by 8 publications

(5 citation statements)

References 0 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Meanwhile, in non-imbibed seeds, radicles emerged from the seeds in moist sand at 15°C although radicle emergence occurred infrequently with little population (20%, data not shown). Such a difference between solidified agar and moist sand could be explained by a previous report where it was found that the highest germination (42%) of fresh seeds of Rosa bractita was obtained when seeds were sown in sphagnum moss, while the lowest percentage (1.8%) was obtained when seeds were sown on filter paper (Anderson and Byrne, 2007). Seeds in moist sand might also be affected by less available oxygen due to a difference in air contact and empty volume of container (approximately 7 and 100 mL, respectively).…”

Section: Discussionmentioning

confidence: 94%

Role of Temperature and Gibberellic Acid in Stimulating Embryo Elongation and Radicle Emergence of Hepatica asiatica Nakai Seeds

Chon¹,

Jeong²,

Lee³

et al. 2015

HST

View full text Add to dashboard Cite

This research was performed to determine the temperature requirements for embryo growth and radicle emergence of Hepatica asiatica Nakai, a perennial herb native to Korea. Seed viability, embryo growth, and radicle emergence were monitored in seeds exposed to various temperatures (10, 15, 20°C and 30→15°C). Laboratory experiments at various temperatures revealed that (1) embryo elongation occurred effectively between 10 and 15°C; (2) radicle emergence occurred only at 15°C; (3) a warm stratification (2-8 weeks at 30°C) was not required for embryo elongation and radicle emergence, and led to inhibition of radicle emergence; (4) application of gibberellic acid (GA3) promoted embryo growth, but not radicle emergence. These results suggested that H. asiatica seeds have two separate mechanisms to overcome dormancy, either by GA3 (morphological dormancy) or temperature (physiological dormancy), and warm stratification is not involved in breaking radicle dormancy. These findings indicate that H. asiatica seeds have morphophysiological dormancy.Additional key words: morphophysiological dormancy, native plant, plant hormone, Ranunculaceae

show abstract

Section: Discussionmentioning

confidence: 94%

Role of Temperature and Gibberellic Acid in Stimulating Embryo Elongation and Radicle Emergence of Hepatica asiatica Nakai Seeds

Chon¹,

Jeong²,

Lee³

et al. 2015

HST

View full text Add to dashboard Cite

show abstract

“…These inhibitors include abscisic acid in the pericarp and testa, which are physiological barriers in the embryo ( Bo et al., 1993 ; Zhou et al., 2009 ). Some research studies have reported that hybrid tea roses have a low (below 50%) and non-uniform germination rate ( Gudin, 2003 ; Ueda, 2003 ; Zlesak, 2005 ; Anderson and Byrne, 2007 ). In potted miniature rose breeding, the seed set of miniature roses is generally low.…”

Section: Discussionmentioning

confidence: 99%

Crossability of miniature rose and quantitative and qualitative traits in hybrids

Meral

2023

Front. Plant Sci.

View full text Add to dashboard Cite

Potted miniature roses are popular indoor ornamental plants. Due to consumer demands, different varieties are introduced to the market every year. The most widely used method for the development of potted miniatures is cross breeding. Six divergent popular pot miniature roses as female parents and Rosa centifolia and Black Baccara as male parents as well as 190 of their F1 hybrids were studied to determine the extent of crossability and the heterosis effects for several quantitative and qualitative traits for determining miniature rose breeding potential. The percentage of pollen viability and the pollen germination rate differed between 48.61% and 61.27% and between 23.26% and 32.19%, respectively. All cultivars exhibited a strong correlation between the fruit set, the weight of fruit, the total set, the weight of seed, the number of seeds per fruit, and the seed germination rate. The cultivar Rosa White Star as a female parent exhibited a good fruit set and crossing success, whereas Juanita Kordana showed a poor crossing success rate. The maximum setting after the crossing was that of Rosa White Star × R. centifolia comprising 75% of fruits, 132 total seeds, and seed weight of 0.68 g. The highest number of seeds per fruit (12.63) was obtained from Rosa Bling Love Star × R. centifolia, and the Red Romance × Black Baccara had the maximum germination of seed rate (48%). The potential for heterobeltiosis and heterosis varied and exhibited a contrasting performance for various qualitative and quantitative traits between F1 progenies. The parents and F1 hybrids were sorted into three major groups by cluster analysis based on the phenotypic variation.

show abstract

“…Incompatibility in hybrid combinations, dormancy, irregular meiotic divisions, weak zygote, and embryo forms, differences in the fertility of the types employed as the main parents, or an accumulation of deleterious alleles could all be contributing factors in this circumstance. (Anderson and Byrne, 2007;Dogan, 2022, Meral et al, 2022. The number of seeds obtained as a result of pollination with paternal parents with high pollen germination rate; a combination with a paternal parent with a lower pollen germination rate than a lower seed count is thought to indicate incompatibility.…”

Section: Discussionmentioning

confidence: 99%

Determination of Breeding Performance on Halfeti Rose (R. odorata Louis XIV) In Crossbreeding

Doğan

Kılıç

Kazaz

2023

Bozok Tarım Ve Doğa Bilimleri Dergisi

View full text Add to dashboard Cite

One of the factors influencing rose crossbreeding success is parental selection. The success rate of a breeder is influenced by factors such as ploidy level, pollen quality, seed number per fruit, and seed germination rate, which indicate parental productivity. This study was conducted to determine the productivity of Halfeti Rose (Rosa odorata Louis XIV) as a seed parent and its compatibility with the commercial rose varieties in terms of combination. Six commercial-cut roses (Inferno, Moonlight, Tineke, Black Baccara, Lady Rose, Speelwark) were used as pollen parents. Fruit set rate, seed number per fruit, seed and fruit weight, seed germination rate, and pollen germination rate were recorded. Among the commercial-cut roses, the pollen germination rate ranged from 7.82% to 23.55%. The highest pollen germination rate was observed in the Tineke and Black Baccara varieties, respectively. The fruit set rate of combinations where Halfeti Rose was used as the seed parent was determined as 63.75%, the number of seeds per fruit was 5.05, and the seed germination rate was 31.21%. Based on PCA and Heatmap analysis, Halfeti x Speelwark, Halfeti x Black Baccara, and Halfeti, x Lady Rose were found to be the most successful combinations. Halfeti Rose exhibited values close to the overall average in terms of fruit set rate and seed germination rate among rose breeding studies. The parameters mentioned in studies on rose breeding show that the Halfeti rose has the potential to be used as a seed parent.

show abstract

Methods for Rosa Germination

Cited by 8 publications

References 0 publications

Role of Temperature and Gibberellic Acid in Stimulating Embryo Elongation and Radicle Emergence of Hepatica asiatica Nakai Seeds

Role of Temperature and Gibberellic Acid in Stimulating Embryo Elongation and Radicle Emergence of Hepatica asiatica Nakai Seeds

Crossability of miniature rose and quantitative and qualitative traits in hybrids

Determination of Breeding Performance on Halfeti Rose (R. odorata Louis XIV) In Crossbreeding

Contact Info

Product

Resources

About