The effects of pulse treatment with gibberellin A3 (GA3), silveT thiosulfate complex (STS), and with or without sucrose on chlorophyll degTadation and vase life of cut flowers of Narcissus tazetta var. chinensis were investigated. The 20-hr pulsing treatment with STS extended the vase life of cut fiowers of IVL tazetta var. chinensis, Pulse treatments with GA3 delayed degradation of chlorophyll...

Chilling damage under 15ºC in anthurium cut flowers reduces the vase-life, quality and marketability of the product. In the present experiment, GABA postharvest treatment (0, 1 and 5 mM) was studied on the vase-life, total soluble solid (TSS), H2O2 content, proline content, spathe browning, catalase and superoxide dismutase enzymes activity of Anthurium andraeanum...

Flower senescence is a highly controlled developmental event that culminates in the death of the floral organs. Most research on flower senescence has focused on the perianth, since it typically determines the commercial life of the flower. The mechanism by which the perianth dies differs between species: in some flowers, wilting is the primary symptom of senescence whereas in others, the peria...

Abstract Carnation (Dianthus caryophyllus ‘Servantes’) is a popular and economically cut flower widely used in the florist industry. However, post-harvest senescence occurs few days limits carnation flowers’ commercialization. Therefore, this research was performed to investigate impact of essential oils such as tea tree oil (TTO), pumpkin seed (PSO), Moringa (MEO), Eucalyptus (EEO), eco-friend...

Aims Floral traits are frequently used in traditional plant systematics because of their assumed constancy. One potential reason for the apparent constancy of flower size is that effective pollen transfer between flowers depends on the accuracy of the physical fit between the flower and pollinator. Therefore, flowers are likely to be under stronger stabilizing selection for uniform size than ve...

Abstract “Paintings fade like flowers”: van Gogh’s prediction on the impact of age paintings came true for most his paintings. We have studied consequences this aging Sunflowers in a vase with yellow background series, namely its original, F454, currently London, and two replicates, F457, Tokyo, F458, Amsterdam, which Gogh painted using original as model. The flower renditions those faded turne...

this experiment was conducted in national institute of ornamental plants for extending vase life of anturium andranum cv. climax cut flowers. experiment was done based on completely randomized design (crd) with three replications and three cut flowers per replicate. treatments included volk oil emulsion wax coating (10, 20 and 30 percent), thyme oil (100, 150 and 250 ppm), salicylic acid (200, ...

Observations of hummingbirds feeding at flowers longer or shorter than their bills seem to contradict the view that bill lengths of hummingbirds evolved in concert with the lengths of their flowers. Recent experiments, however, indicate that a hummingbird’s ability to feed at artificial flowers of different lengths depends on the widths of the flowers. We examined if the broad range of flower l...

Flowers, as repeated modules on a plant, may show population dynamics that correspond to ecological models for population growth. We hypothesized that rate of flower production (birth rate), number of open flowers per day (population size) and flower duration (longevity) should be related to plant resource status. With dioecious species, resource demands of male or female function would contrib...

abstract rosa damascena has attracted considerable attention in horticulture, biochemistry and in pharmacology because of the fragrance of the flowers and the high content of its bio-logically active substances. there is limited information available on factors controlling flower yield and its components. the present study reports an investigation on flower yield and the various factors affect...