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Vascular blockage and its inhibition in cut rose flowers


, : Vascular blockage and its inhibition in cut rose flowers. Acta Horticulturae (41): 159-170

The effects of ion exchange resins (packed in columns in sections of tubing placed over stem segments) on vascular blockage were studied in cut roses by measuring blockage rates in excised stem segments and by determining water uptake and fresh weight retention in aging cut roses.

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Related references

Van Doorn W.G.; Schurer K.; D.W.tte Y., 1989: Role of endogenous bacteria in vascular blockage of cut rose flowers. When cut flowers of five rose [Rosa hybrida L.,] varieites (Sonia, Ilona, Motrea, Jack Frost and Mercedes) were held in water for 7 days, lowest hydraulic conductance was found in the basal 5 cm stem segment. After artificially blocking about two...

Doorn, W.G. van, 1989: Role of physiological processes, microorganisms, and air embolism in vascular blockage of cut rose flowers. When placed in the vase, cut roses often exhibit symptoms of water stress such as leaf wilting, lack of flower development and bending of the stem. The cause of the development of water stress has been well established; however, the nature of the...

Doorn, W.-Van; Perik, R., 1990: Hydroxyquinoline citrate and low pH prevent vascular blockage in stems of cut rose flowers by reducing the number of bacteria. Stems of cut rose flowers (Rosa hybrida L., cvs. Sonia, Ilona, Polka, and Frisco) were held in a sodium hypochlorite solution and then placed in distilled water or in a buffer at pH 6.0. After 2 days, many bacteria were found in the basal end of t...

Durkin, D.; Kuc, R., 1966: Vascular blockage and senescence of the cut rose flower. Longevities of 4 rose varieties when cut and placed in water, commercial preservative, or when intact on the plant were determined. Commercial preservative increased longevity slightly as compared to water. Intact flowers lasted at least twice as...

Shiva, K.N.; Aggarwal, R.; Bhattacharjee, S.K., 2002: Vascular blockage associated with vase life of cut rose cultivars - a SEM study. The relationship between stem blockage and vase life was determined using 5-cm basal stem portions collected at harvest, three days after harvest and at senescence from 10 rose cultivars (Angelique, Arjun, Cara Mia, Dr. B. P. Pal, Eiffel Tower, Pr...

Doorn, W.G. van; Harkema, H.; Otma, E., 1991: Is vascular blockage in stems of cut lilac flowers mediated by ethylene?. Flowering stems of lilac (Syringa vulgaris) were placed individually in deionized water containing hydroxyquinoline citrate (HQC) (200 or 400 mg/litre), sodium dichlorocyanuric acid (DICA) (100 or 200 mg/litre), silver thiosulphate (STS) (0.02 or...

Doorn, W.G. van, 1995: Vascular occlusion in cut rose flowers: a survey. The causes of low water uptake and water stress symptoms in cut rose flowers are briefly reviewed. Low water uptake is due to an occlusion, mainly located in the basal stem end. No evidence has been found for a reaction of the plant after cutting,...

Doorn, Wouter, G.Van, 1993: Vascular occlusion in stems of cut rose flowers

Van Doorn, W.G.; D.W.tte, Y., 1997: Sources of the bacteria involved in vascular occlusion of cut rose flowers. Cut rose (Rosa hybrida L.) flowers placed in water often wilt prematurely, which is partially due to bacterial accumulation in the stems. Bacterial strains in the stems are mainly pseudomonads and enterobacteria. The possible sources of these orga...

Witte, Y. de; Doorn, W.G. van, 1991: The mode of action of bacteria in the vascular occlusion of cut rose flowers. Rosa hybrida (cv. Sonia) stems were harvested and placed individually in suspensions containing Pseudomonas aeruginosa, isolated from rose stems, at 5 x 109 cfu/ml. The suspensions were untreated, or had been held at 75 degrees C for 15 min (paste...