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Effect of time of digging on incidence of Fusarium rot in tulip bulbs


, : Effect of time of digging on incidence of Fusarium rot in tulip bulbs. Acta Horticulturae (47): 119-123

Apparently healthy bulbs of the Paul Richter, selected from a heavily diseased stock, were planted on 23 August 1971, harvested in 1972 on 20 April, 4 May, 18 May, 1 June or 15 June, replanted on 29 August 1972 and harvested on 14 June 1973. The best production of flowers and healthy bulbs in 1973 was from bulbs dug on 4 May 1972. Taking the 4 May yield as 100%, the percentage by weight of healthy bulbs for the dates in sequence were 73%, 100%, 87%, 73% and 59%.

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Related references

Gould C.J.; Miller V.L., 1975: Effect of time of digging on incidence of fusarium oxysporum f sp tulipae rot in tulip bulbs. Acta Horticulturae (Wageningen) 47: 119-123

Saniewska, A., 2001: The effect of gums induced by Fusarium oxysporum fsp tulipae in tulip bulbs on the mycelium growth and development of the pathogen in vitro. Acta Physiologiae Plantarum 23(3 Supplement): 92-93

Dabrowski, J., 1964: Studies on the influence of the size of bulbs and their planting time upon the yield and the quality of tulip bulbs. Experiments were carried out on heavy alluvial soil with pH 6-7. The largest yields were obtained from first grade parent bulbs. The smaller bulbs gave correspondingly lower yields. The highest increase in bulb yield was obtained from second grade...

Saniewska, A.; Saniewski, M.; Urbanek, H., 2005: The effect of gums induced by Fusarium oxysporum f. sp. tulipae in tulip bulbs on in vitro growth of the pathogen and its production of gum degrading enzymes. A study was conducted to investigate the effect of tulip gums on the in vitro growth and development of F. oxysporum f.sp. tulipae and on the secretion of some enzymes to the culture medium. Addition of tulip gums to solid Czapek-Dox-Agar (CzDA) m...

Gerlach, W., 1967: Some observations and investigations on the Fusarium rot of tulip bulbs. Observations illustrate the difficulty experienced in diagnosing the disease (caused by Fusarium oxysporum f. tulipae) as well as the decisive importance of humidity for infection and development of the disease. Tulip bulbs in the field can be inf...

Bergman, B.H.H., 1965: Field infection of Tulip bulbs by Fusarium oxysporum. In addition to the known penetration of young tulip bulbs by F. oxysporum into the basal plate via the roots it is shown that penetration takes place more commonly directly into the fleshy outer scale of the new bulb, often just before the scale t...

Bergman, B.H.H.; Bakker Van der Voort, M.A.M., 1979: Latent infection in tulip bulbs by Fusarium oxysporum. Latent infection by F. oxysporum f.sp. tulipae was induced in the lab. Its occurrence in planting material of susceptible cvs. may affect the health of daughter bulbs harvested in the following year, even when the planted bulbs are disinfected. In...

Valaskova, E., 1985: Treatment of tulip bulbs and Gladiolus corms against Fusarium diseases. In field trials against F. spp., Liro-maneb at 0.5% and Benlate T [benomyl + thiram] T 0.5% were effective on tulip, and benomyl + Polyram-Ultra [thiram] or benomyl + Liro-maneb, each at 0.25%, on Gladiolus.

Gerlach, W.; Blaszyk, P., 1966: The survival of the causal organism of the Fusarium rot of tulip bulbs in storage rooms. Tests on samples of dust showed that Fusarium oxysporum f. tulipae could survive in storage rooms until the new crop of bulbs was brought in. The practical importance of this additional source of infection is discussed.

Bergman, B.H.H., 1: A device for the incubation of Fusarium-inoculated tulip bulbs in a constant air stream. Inoculation experiments on tulip bulbs with F. oxysporum f.sp. tulipae frequently gave inconsistent results when performed in stagnant air, even under strictly standardized conditions. This was thought to be due to the accumulation of ethylene pro...