Development of axillary buds of rose in vitro

Acker, C. A. M. Marcelis Van; Scholten, H.J.

doi:10.1016/0304-4238(95)00786-s

Cited by 18 publications

(5 citation statements)

References 24 publications

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“…Discussing the other flowering attributes as presented in Table 1, days to sepal reflex & attaining of cup shape stage (harvesting stage) was least (40.81 & 43.65 days, respectively) in the shoots bended on 2 nd week of October (T 2 ). Impact of higher temperature on flowering traits in terms of earliness to blooming (FBE to harvestable stage) was in accordance to the conclusion drawn by Dieleman et al [18], supported by De Vries et al [19], Van den Berg (1987) and Marcelis van Acker [20] in rose. The flowering traits FBE, sepal reflex and cup shape was seen to be delayed by decrease in the maximum-minimum temperature, these results match the observations recorded by Khattak and Pearson [21] in Antirrhinum, where flowering was delayed as temperature decreased.…”

Section: Fig 2 Effect Of Shoot Bending At Different Time On Rate Of S...supporting

confidence: 88%

“…Flower shoot length and stalk length registered greater values (42.56 cm & 33.58 cm respectively) when the plants received bending treatments in 2 nd week of November and reduced shoot length at bending in the month of September and October. When the prevailing temperature was as high as 35 ºC with 100% RH reduced shoot length at temperature above 20 ºC in rose was described by Dieleman et al [18], Shin et al [9], Marcelisvan Acker [20] and De Vries et al [23] in rose. The perusal of data in Table 2 revealed the influence of winter months on the pedicel length.…”

Section: Fig 2 Effect Of Shoot Bending At Different Time On Rate Of S...mentioning

confidence: 85%

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Effect of Shoot Bending at Different Time on Production and Quality of Hybrid Tea Rose Cultivar Minu Pearle

Atal

Mitra

2023

IJPSS

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A field experiment was undertaken from September to March for two consecutive years (2020 and 2021) to find out the best time for shoot bending in Hybrid Tea rose. Growth and development of rose cultivar Minu Pearle, was significantly influenced by shoot bending at different time (4th week of September to 4th week of December). Among the treatments tallest plants & maximum leaf area was produced in plants bended on T5 whereas, the plant canopy was registered to be maximum in 2nd week of December. The highest rate of shoot elongation at 15 & 30 days after shoot bending was noted in second week of November and October respectively. Application of shoot bending on 2nd week of October recorded early blooming and slowest flower bud emergence was registered in T5whereas, delayed sepal reflex and maximum days taken to attain cup shape was observed in T6. In terms of flower quality parameters like length and diameter of flower bud and pedicel and weight of individual flower, T5 proved to be superior. Shoot bending applied on 2nd week of November (T4) produced long and thick stalks. Among the treatments maximum number of flowers, longest self and vase life, highest dry matter production from leaves and stem, greater chlorophyll and anthocyanin content was observed in T5.

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Section: Fig 2 Effect Of Shoot Bending At Different Time On Rate Of S...supporting

confidence: 88%

Section: Fig 2 Effect Of Shoot Bending At Different Time On Rate Of S...mentioning

confidence: 85%

Effect of Shoot Bending at Different Time on Production and Quality of Hybrid Tea Rose Cultivar Minu Pearle

Atal

Mitra

2023

IJPSS

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“…In Hyacinthus (Pierik and Ruibing 1973), Hippeastrum (Langens‐Gerrits, unpublished results) and Lachenalia (Perrignon 1992), larger bulblets regenerate from large explants than from small explants. Also in rose (Marcelis‐Van Acker and Scholten 1995) and Vigna radiata (Gulati and Jaiwal 1992) larger organs were obtained from large explants. It has not been studied what caused this better growth.…”

Section: Discussionmentioning

confidence: 99%

Contribution of explant carbohydrate reserves and sucrose in the medium to bulb growth of lily regenerated on scale segments in vitro

Langens-Gerrits¹,

Kuijpers²,

Klerk³

et al. 2003

Physiologia Plantarum

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Bulb size is an important factor determining phase change in Lilium: phase change only occurs in bulblets over a certain threshold weight. After phase change has occurred, bulblets sprout with a stem with many leaves. Juvenile bulblets sprout with only a few leaves. The factors contributing to bulb size were studied during in vitro regeneration of bulblets on scale segments. The larger the explants, the larger the regenerated bulblets. Explant size influenced bulb growth during the complete culture period. Bulb growth was stimulated by a high sucrose concentration. The contribution of the medium and the explant reserves to bulb growth were studied in large and small explants using labelled sucrose. Sucrose was mainly taken up through the cut surfaces. In freshly cut explants, the rate of uptake was correlated with the size of the contact area, but at later stages, when regenerating organs were present, the difference in uptake rate of small and large explants almost disappeared. Small explants had a larger sink activity than large ones. Explants with regenerating organs took up more sucrose than freshly cut explants. Sucrose uptake and bulb growth were rather constant in the later phases and doubled when the sucrose concentration was doubled. Partitioning of label from the sucrose over the various organs, was also rather constant in time: approximately 25% was accumulated in the bulblets, 35–45% in the explant and 30–35% was converted to CO2. About half of the label in the explant was recovered at the proximal side where regeneration takes place. Sucrose, once incorporated in the storage pools in the explant, either remained in the explant or was converted to CO2. Redistribution to the growing bulblets hardly occurred. The percentage of bulb growth that could be attributed to uptake of medium components was constant over the regeneration period: 45–50% for large and 65–75% for small explants.

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“…Plant architecture is strongly determined by the capacity of buds to grow after release of apical dominance. In several species including Rosa sp., bud outgrowth is a complex process involving cell division, new organogenesis and elongation (Zieslin & Halevy 1976; Khayat & Zieslin 1982; Marcelis‐van Acker & Scholten 1995; Girault et al . 2008), and is controlled by a genetic program and environmental cues.…”

Section: Introductionmentioning

confidence: 99%

Regulation of RhSUC2, a sucrose transporter, is correlated with the light control of bud burst in Rosa sp.

Henry

Rabot

Laloi

et al. 2011

Plant Cell & Environment

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In roses, light is a central environmental factor controlling bud break and involves a stimulation of sugar metabolism. Very little is known about the role of sucrose transporters in the bud break process and its regulation by light. In this study, we show that sugar promotes rose bud break and that bud break is accompanied by an import of sucrose. Radiolabelled sucrose accumulation is higher in buds exposed to light than to darkness and involves an active component. Several sucrose transporter (RhSUC1, 2, 3 and 4) transcripts are expressed in rose tissues, but RhSUC2 transcript level is the only one induced in buds exposed to light after removing the apical dominance. RhSUC2 is preferentially expressed in bursting buds and stems. Functional analyses in baker's yeast demonstrate that RhSUC2 encodes a sucrose/proton co-transporter with a Km value of 2.99 mM at pH 4.5 and shows typical features of sucrose symporters. We therefore propose that bud break photocontrol partly depends upon the modulation of sucrose import into buds by RhSUC2.

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Development of axillary buds of rose in vitro

Cited by 18 publications

References 24 publications

Effect of Shoot Bending at Different Time on Production and Quality of Hybrid Tea Rose Cultivar Minu Pearle

Effect of Shoot Bending at Different Time on Production and Quality of Hybrid Tea Rose Cultivar Minu Pearle

Contribution of explant carbohydrate reserves and sucrose in the medium to bulb growth of lily regenerated on scale segments in vitro

Regulation of RhSUC2, a sucrose transporter, is correlated with the light control of bud burst in Rosa sp.

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