Wyniki wyszukiwania

1

Nagroda Jakości Rządu Federacji Rosyjskiej

100%

Wolniak R., Stanecka A.

Problemy Jakości

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2012

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tom 44

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nr 04

2

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Effect of growth regulators on the postharvest longevity of cut flowers and leaves of the calla lily (Zantedeschia Spreng.)

100%

Janowska B., Stanecka A.

Acta Agrobotanica

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2011

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tom 64

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nr 4

The conditioning of flowers of the calla lily cultivar ‘Albomaculata’ in BA at concentrations of 50-150 mg×dm-3 extends their postharvest longevity by 6.2-14.5 days. An extension of the longevity of the flowers by 15 days can be obtained after the application of a solution of 8HQS with saccharose on a continuous basis. Effective in improving the longevity of leaves of cultivar ‘Sunglow’ is GA3 at a concentration of 400 mg×dm-3. What is more, its application at concentrations of 300-400 mg×dm-3 boosts their greenness index. GA3 at concentrations of 50 and 100 mg×dm-3 extends the postharvest longevity of leaves of the cultivar ‘Black Eyed Beauty’ by 18 and 11 days, respectively, while BA shortens it. A combined application of BA and GA3 inhibits chlorophyll degradation, while GA3 and a mixture of BA and GA3 inhibit protein degradation.

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Postharvest longevity of the leaves of the calla lily (zantedeschia spreng.)

80%

Janowska B., Stanecka A., Czarnecka B.

Acta Scientiarum Polonorum. Hortorum Cultus

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2012

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tom 11

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nr 1

Effect of growth regulators on postharvest longevity of Zantedeschia albomaculata /Hook/ Baill.) leaves was evaluated in studiem. The aim of 3 experiments to evaluate the effect of topolin used in two forms: meta-methoxytopolin (MemT) and its riboside (MemTR) on postharvest longevity of ‘Albomaculata’ leaves. In the first experiment, the topolins were used in water solutions at concentrations of 25, 50 and 75 mg·dm3 for 4-hour conditioning of leaves, which were then placed in distilled water. In the second experiment, their solutions at concentrations of 25 and 50 mg·dm⁻³ were employed for 24-hour conditioning of leaves in a cold room at a temperature of 5°C and for a short, seconds-long immersion of leaf blades. In the third experiments, the scheme of the second experiment was employed again, except that here the solutions contained not only the topolins but also gibberellic acid at the same concentrations. In the experiments the control was leaves placed in distilled water after cutting. MemT and MemTR affect the postharvest longevity and quality of conditioned leaves of the cultivar Albomaculata. At concentrations of 25–75 mg·dm⁻³ they extend their longevity and inhibit protein degradation, but have no effect on their greenness index. Applied at concentrations of 25–50 mg·dm⁻³ to soak leaf blades for a few seconds, both growth regulators improve the longevity of the leaves more effectively than their 24-hour conditioning. The combination of MemT with GA3 at concentrations of 25 + 25 and 50 + 50 mg·dm⁻³ to soak leaf blades for a few seconds extends the postharvest longevity of the leaves by an average of 14–24 days and inhibits protein degradation, but has unfavourable effect on their greenness index.

Ograniczanie wyników

1 Acta Agrobotanica

1 Acta Scientiarum Polonorum. Hortorum Cultus

1 Problemy Jakości

3 Stanecka A.

2 Janowska B.

1 Czarnecka B.

1 Wolniak R.

2 2012

1 2011

Nagroda Jakości Rządu Federacji Rosyjskiej

Effect of growth regulators on the postharvest longevity of cut flowers and leaves of the calla lily (Zantedeschia Spreng.)

Postharvest longevity of the leaves of the calla lily (zantedeschia spreng.)