The Effect of the Method of Cultivation on the Development of Freesia (Freesia Eckl. Ex Klatt)

Startek, L.; Mynett, K.; Żurawik, Piotr

doi:10.17660/actahortic.2002.570.53

Cited by 2 publications

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“…The rate of senescence and quality deterioration depends both on cultivar characteristics and growing conditions as well as corm reproduction methods. The production of healthy corms, their preparation in order to obtain even, abundantly flowering, good quality plants as soon as possible are of utmost importance in freesia cultivation (Imanishi, 2002;Startek et al, 2002).…”

Section: Introductionmentioning

confidence: 99%

The Influence of New Methods of Corm Coating on Freesia Growth, Development and Health

Startek¹,

Bartkowiak²,

Salachna³

et al. 2005

Acta Hortic.

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Recently in agriculture, there has been a growing interest in new proecological technologies whose main aim is the protection of biological material against negative effects of direct contact with the environment. We examined the effect of coating freesia corms with natural polysaccharides such as chitosan and its derivatives on growth and plant health. Two experiments were conducted under covers, to test how particular coating methods affect the length of the vegetative and generative stages, the quality and number of flowers, plant health and corm quality. Vegetative and generative parts of the plants were measured, leaf green index was determined and the leaves and corms were analyzed to detect viruses and fungal diseases e.g. Fusarium sp. It was found that, irrespective of the coating method, encapsulated plants emerge earlier and their vegetative stage was 10-14 days shorter in comparison with control plants. Although the effects on the flower quality and plant health varied and depended on the kind of coating chemistry, the results for either of the coating variants were inferior to the results in control plants. The studies show that coating of corms clearly improves their health, reduces selected fungal infection, inhibits the development of fungal pathogens, reduces and eliminates, depending on the coating chemistry, some virus and fungal occurrence. The results of DAS-ELISA test for freesia corms for some coating chemistries were the same or slightly differed from the control, untreated plants, whereas corms produced from corms without coating showed virus infection. Coating turned out to have no influence on virus presence in freesia leaves.

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Section: Introductionmentioning

confidence: 99%

The Influence of New Methods of Corm Coating on Freesia Growth, Development and Health

Startek¹,

Bartkowiak²,

Salachna³

et al. 2005

Acta Hortic.

Self Cite

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“…Freesia cultivation, both for cut and pot flowers, requires optimum conditions for plant growth and development i.e. proper temperature and moisture (Startek et al, 2000(Startek et al, , 2002Startek, 2002). In the production of ornamental plants, including freesia, growth regulators such as ethylene may play a considerable part (Kawa-Miszczak et al, 1997).…”

Section: Introductionmentioning

confidence: 99%

Effect of Ethephon on Easy Pot Freesia

Startek¹,

Żurawik²

2005

Acta Hortic.

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A series of experiments were conducted during June to December in 2000 through 2002, to evaluate the effects of ethephon (a source of ethylene) on the growth, decorative value and corm yields of three cultivars of genetically short freesia. Plant material consisted of the cultivars: 'Popey', 'Suzy' and 'Gompey' from the Dutch breeding firm Van Staaveren (Royal Van Zanten). Ethephon (Flordimex 420 SL) was applied at the rate of 0.3-4.8 ml dm-3 (125-2000 mg dm-3 ethephon). Prior to planting corms were soaked for 24 hours in Flordimex 420 SL solution at six concentrations. Neutralised sphagnum peat supplemented with Osmocote Plus was the growing medium. Five corms per pot (N°14) were planted and kept in a plastic tunnel without cooling during the summer. Ethephon delayed emergency, growth and flowering; the higher its concentration the stronger the effects. It also increased the firmness of leaves and caused intensive branching of plants. Depending on concentration, the number of inflorescences and their decorative value decreased with an increase in concentration. The coefficient for increases in corm numbers increased while the corms weights decreased. Ethephon at the rate of 125-250 mg dm-3 slightly delayed flowering, improved and prolonged plant decorative value. In this case, there was also an increase in total number of corms, even doubled, although there was no effects on their total weight.

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The Effect of the Method of Cultivation on the Development of Freesia (Freesia Eckl. Ex Klatt)

Cited by 2 publications

References 0 publications

The Influence of New Methods of Corm Coating on Freesia Growth, Development and Health

The Influence of New Methods of Corm Coating on Freesia Growth, Development and Health

Effect of Ethephon on Easy Pot Freesia

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