Effect of temperature and light on the coloration of rose flowers

Shisa, M.; Takano, T.

doi:10.2503/jjshs.33.140

Cited by 31 publications

(18 citation statements)

References 9 publications

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“…In the present study, we examined how light and temperature applied to diflerent parts of the plant afl"ected pigmentation and flower size in 'Baccara' roses. By subjecting whole plants to low temperatures, pigmentation was enhanced and flower dimensions were increased (Table 1), as has previously been reported for roses by Ratsek (1944), Shisa and Takano (1964) and Biran et al (1973). If on the flowering shoot only the leaves were cooled, there was no eflect on bud size or pigmentation, whereas cooling only the bud, stimulated pigmentation and increased the flower dimensions.…”

Section: Discussionsupporting

confidence: 71%

“…However, direct light effects on anthocyanin synthesis through the phytochrome photosystem are known (Mohr 1972). In 'Masquerade' roses, the production of the red pigment which occurs in the petals after opening stage, is promoted by direct illumination of the petals (Shisa and Takano 1964). The objective of the investigation reported here was to determine whether the effects of light and temperature on pigmentation and rose bud dimensions are local effects in the flower bud, or whether these factors act via other parts of the plant.…”

Section: Introductionmentioning

confidence: 99%

“…Temperature and light intensity are the two main environmental factors which afFect flower bud weight and pigmentation of petals (Blank 1958, Harborne 1965. In roses, a rise in temperature results in a lower concentration of anthocyanins (Ratsek 1944, Zieslin and Halevy 1969, Biran et al 1973) and pigment production ceases at temperatures above 30°C (Shisa and Takano 1964). In 'Baccara' roses, subjecting only the buds to high temperatures causes a reduction in, or complete inhibition of pigmentation (Biran and Halevy 1974).…”

Section: Introductionmentioning

confidence: 99%

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Effects of Varying Light Intensities and Temperature Treatments Applied to Whole Plants, or Locally to Leaves or Flower Buds, on Growth and Pigmentation of ‘Baccara’ Roses

Biran

Halevy

1974

Physiologia Plantarum

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Varying light intensity and temperature treatments were applied to whole plants, or to the leaves, or to the flower buds of 'Baccara' roses. The effect of these treatments on flower dimensions and pigmentation of the petals was examined.Cooling only the leaves had no effect; cooling only the buds enhanced both bud weight and pigmentation, but the effect was less marked than when the whole plant was cooled. Reducing plant temperature by misting with desalinated water enhanced both pigmentation and flower size.Darkening of only the leaves, or their removal, resulted in an inhibition of the pigmentation and also in a decrease in bud weight. Darkening of only the flower bud did not affect either pigmentation or bud weight, but caused bud elongation. It is suggested that light intensity and temperature affect flower growth and pigmentation via their effects on the availability of sugars in the flower bud.

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Section: Discussionsupporting

confidence: 71%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Effects of Varying Light Intensities and Temperature Treatments Applied to Whole Plants, or Locally to Leaves or Flower Buds, on Growth and Pigmentation of ‘Baccara’ Roses

Biran

Halevy

1974

Physiologia Plantarum

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“…The differentiation of petals in the rose flowers is promoted by low temperature (21,22,23) as well as by low cut back (Table 10). These are the same conditions which promote malformation in some rose cultivars.…”

Section: Discussionmentioning

confidence: 99%

Factors Affecting Flower Abortion and Malformation in Roses

Moe

1971

Physiologia Plantarum

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The formation of blind shoots and malformed flowers in rose plants grown under various temperatures and light intensities, and subjected to different cut back procedures has been studied. Low temperature, low light intensity and low cut back promoted blind shoot formation. Hybrid tea cultivars are more sensitive for unfavourable temperature, light and cut back treatments than Floribunda cultivars. The process of floral abortion is initiated during the early stages of shoot growth before the differentiation of floral parts has been completed. Low temperatures (12–15°C) in this critical stage of development strongly promote blind shoot formation, but have no effect when stamen and pistil primordia had been formed in the apical flower bud. The formation of malformed flowers, so‐called “bullheads”, which have significantly more petals than normal flowers, is also promoted by low temperature and low cut back. Light intensity seems to have no effect. Shoots subjected to low temperature (12°C) during the early stages of development, before the differentiation of the floral organs are fully completed, produce malformed flowers to a greater extent than shoots subjected to high temperature (18–24°C) during this period. It is suggested that blind shoot formation in roses is subject to hormonal control.

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“…It was almost white at 25C with 45% shading of natural light, but pale with 25% shading. Cultivation of ' [43][44][45][46] . Verhock-Williams 8 made extensive intergeneric crosses between Manfreda and Polianthes.…”

mentioning

confidence: 99%

Breeding of Ornamentals:Tuberose (<i>Polianthes tuberosa</i> L.)

Datta¹

2017

Current Science

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Effect of temperature and light on the coloration of rose flowers

Cited by 31 publications

References 9 publications

Effects of Varying Light Intensities and Temperature Treatments Applied to Whole Plants, or Locally to Leaves or Flower Buds, on Growth and Pigmentation of ‘Baccara’ Roses

Effects of Varying Light Intensities and Temperature Treatments Applied to Whole Plants, or Locally to Leaves or Flower Buds, on Growth and Pigmentation of ‘Baccara’ Roses

Factors Affecting Flower Abortion and Malformation in Roses

Breeding of Ornamentals:Tuberose (<i>Polianthes tuberosa</i> L.)

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