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David B. Rubino

Fifteen cultivated genotypes of Exacum affine Balf. were evaluated for flower development and for flower and leaf color at 0 days (marketable stage, ≈ 25% of plant canopy covered with flowers), and after 14 and 28 days of maintenance in a low-irradiance environment (≈ 1 μmol·m-2·s-1 photosynthetically active radiation from cool-white fluorescent lights for 12 hours daily). Flowering and flower color development were reduced, but leaf color improved during maintenance under low irradiance. Variability was observed among the 15 genotypes for flower bud and flower color development in a low-irradiance environment.

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Todd C. Einhorn, Yan Wang, and Janet Turner

timing in 2011 relative to 2010 as shown by higher SS, lower FF, and darker skin color. Pedicel retention force, evaluated in 2011 as a result of the late harvest timing, was numerically higher for GA 3 treatments but not significantly. Flower bud

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Rita L. Hummel, Marianne Elliott, Gary Chastagner, Robert E. Riley, Kathy Riley, and Annie DeBauw

-quality plant. Leaf color and the number of visible flower buds on ‘English Roseum’ and ‘Cunningham’s White’ were also recorded. Color of the interveinal lamina of two mature leaves per plant from the most recent growth flush was determined quantitatively with a

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Yushu Li, Zongda Xu, Weiru Yang, Tangren Cheng, Jia Wang, and Qixiang Zhang

the adult stage, flowering in most woody trees (especially fruit trees) is spread over two growing seasons. During the first season, meristems with a potential to differentiate flowers are initiated in the lateral buds of developing shoots. By autumn

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Xia Chun-hua and Chen Jian-hua

color. Five-centimeter-long flower branches were obtained, from which the pedicels were used for the determination of Ca and PAL, while the spathe was used for anthocyanin content determination. The oyster shells (collected from Zhanjiang market waste

Open access

Tyler C. Hoskins, Jason D. Lattier, and Ryan N. Contreras

in lilac flowers, which may be useful for lilac breeders ( Jędrzejuk et al., 2016a ). Expediting seed germination is another option for shortening the generation time of woody plants. Efforts to overcome lengthy periods of seed dormancy have proven

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Xiaoying Dou, Jinrong Bai, Huan Wang, Ying Kong, Lixin Lang, Fang Bao, and Hongzhong Shang

within each section is easy, and the hybrids are divided into several groups: longiflorum, trumpet, Oriental, and Asiatic. Oriental hybrid lilies are popular in the cut flower industry because of the aesthetic flower shape, fragrance, and color

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Wayne A. Mackay and Narendra Sankhla

Phlox paniculata `John Fanick' produces long lasting, dense terminal flower heads and has potential as a specialty cut flower. Quality and postharvest display life of cut flower heads depends primarily on ethylene-induced flower abscission, flower bud opening, and maintenance and development of flower color during vase life. Late events, such as flower and leaf senescence may also be detrimental to flower quality. In the control treatment, the initial red-pink and purple flower color changes to violet blue in 3 to 4 days, and may lose >50% of initial anthocyanins. Incorporating sucrose (SUC) in the vase solution not only maintained >75% of the initial floral pigments, but also promoted opening of additional flowers and anthocyanin development. Although both ethylene biosynthesis (AOA, ReTain, a.i. AVG) and action inhibitors (STS, 1-MCP) delayed flower abscission, STS and 1-MCP were relatively more effective than AOA and AVG. As in the control, newly opened flowers remained very small when treated with ethylene inhibitors, did not develop red-pink color, and exhibited only shades of violet blue color. Sucrose antagonized the effect of ethylene inhibitors. As such, the flowers in SUC+ethylene inhibitors treatments enlarged in size and developed a reddish-pink blue color. However, the flower quality in SUC alone was much superior than those in SUC+ethylene inhibitors. These results indicate that ethylene inhibitors, alone and in combination with SUC, were not of any additional value in improving postharvest performance and display life of cut phlox flower heads.

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Le Luo, Chao Yu, Xuelian Guo, Huitang Pan, and Qixiang Zhang

characteristics, such as flower color and the morphology of prickles, indumentum, and glandular pubescence. A comparison of the morphological traits of these botanical varieties from different habitats suggests that flower color is not a suitable character for

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Yun-wen Wang, Bruce L. Dunn, and Daryl B. Arnall

for the four-pot group. To eliminate water status influences, all spectral measurements were made the day after plants were fertigated. To avoid interference of flower color, all pedicels were removed from each pot as they appeared. At 42 DAT and 48