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1

The effect of growth regulators on stomatal aperture in senescing cut leaves of Zantedeschia aethiopica Spr. and Hosta Tratt. ‘Undulata Erromena’

100%

Wachowicz M., Skutnik E., Rabiza-Swider J.

Folia Horticulturae

|

2006

|

tom 18

|

nr 2

2

Effect of light on senescence of cut leaves of Zantedeschia aethiopica Spr. and Hosta Tratt. 'Undulata Erromena'

84%

Rabiza-Swider J., Skutnik E.

Folia Horticulturae

|

2004

|

tom 16

|

nr 1

161-166

3

Wply wybranych soli wapniowych na pozbiorcza trwalosc lisci cantedeskii etiopskiej [Zantedeschia aethiopica Spr.] i funkii [Hosta Tratt.]

84%

Skutnik E., Rabiza-Swider J.

Folia Universitatis Agriculturae Stetinensis. Agricultura

|

2004

|

tom 94

183-186

4

Lipoxygenase in senescing cut leaves of Zantedeschia aethiopica Spr. and Hosta 'Undulata Erromena' treated with GA3 or BA

84%

Rabiza-Swider J., Lukaszewska A., Skutnik E., Rybka Z., Wachowicz M.

Acta Physiologiae Plantarum

|

2004

|

tom 26

|

nr 4

5

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Senescence of cut leaves of Zantedeschia aethiopica and Z. elliottiana. Part III. The reducing sugars content

84%

Skutnik E., Rabiza-Swider J., Wachowicz M., Lukaszewska A. J.

Acta Scientiarum Polonorum. Hortorum Cultus

|

2004

|

tom 03

|

nr 2

Cut leaves of Zantedeschia aethiopica and Z. elliottiana are widely used as the florists’green. Over the years we studied the parameters related to postharvest quality of leaves in the two above species. Here the effect of plant hormones known to delay leaf senescence (benzyladenine and gibberellic acid) and of the standard preservative solution (8-HQC + 2% sucrose) on the reducing sugars contents is presented. BA (0.1 mmol·dm⁻³) and GA3 (0.25 mmol·dm⁻³) were applied as 24 h pulse treatments. Pulsed and unpulsed leaves were kept either in water or in the preservative. In both species contents of reducing sugars during their senescence in vases initially rose and then dropped to 60–80% of the initial levels. Pretreatment with BA did not counteract a decrease in reducing sugar contents while in the GA₃-treated leaves sugar loss was prevented in Z. aethiopica and a 20% increase occurred in Z. elliottiana. Placing leaves in the sugar containing solution provoked a dramatic loss of reducing sugars in Z. aethiopica (to 12% of the initial level) while in Z. elliottiana this loss was less pronounced (52% of the initial value). Cytokinin did not mitigate the negative effect of the preservative on reducing sugar losses while GA₃ was more effective in this respect. Results of analyses do not support hypothesis that sugar depletion might be a cause of senescence of detached leaves in the two Zantedeschia species.

6

Senescence of cut leaves of Zantedeschia aethiopica and Z. elliottiana. Part I. Chlorophyll degradation

84%

Skutnik E., Rabiza-Swider J., Wachowicz M., Lukaszewska A. J.

Acta Scientiarum Polonorum. Hortorum Cultus

|

2004

|

tom 03

|

nr 2

Chlorophyll degradation occurring during leaf senescence in under control of plant hormones. Changes in the chlorophyll content and the effects of BA (benzyladenine) and GA₃ (gibberellic acid) on this process were analyzed during senescence of cut leaves of Zantedeschia aethiopica Spr. and Zantedeschia elliottiana Engl., two species grown for the florists’ green. Both growth regulators were applied as 24 h pulse treatment: 0.25 mmol·dm⁻³ and 0.1 mmol·dm⁻³ for GA₃ and BA, respectively. Gibberellic acid was more effective than benzyladenine in delaying senescence of both Zantedeschia species leaves by retarding chlorophyll loss. A standard preservative solution used to prolong longevity of cut flowers (8-HQC /citrate of hydroxyquinoline/ +2% S /sucrose/) radically accelerated chlorophyll loss of Z. aethiopica leaves but had no effect on pigment degradation in leaves of Z. elliottiana. However, in both species the preservative diminished the positive effect of GA₃ treatment on final chlorophyll content.

7

Kwitna zima

84%

Skutnik E.

Działkowiec

|

1998

|

nr 12

23

8

Nasze kwiaty doniczkowe. Cantedeskia

83%

Szymanowska A.

Poradnik Gospodarski

|

1995

|

nr 04

43

9

Nie tylko iglaste drzewko

71%

Bielecka M.

Biuletyn Informacyjno-Handlowy. Ośrodek Doradztwa Rolniczego Boguchwała

|

2005

|

nr 12

9

10

O cantedeskii raz jeszcze [cz.I]

67%

Janowska B.

Hasło Ogrodnicze

|

2008

|

nr 03

152-157

11

Senescence of cut leaves of Zantedeschia aethiopica and Z. elliottiana. Part II. Free amino acids accumulation in relation to soluble protein content

67%

Rabiza-Swider J., Skutnik E., Wachowicz M., Lukaszewska A. J.

Acta Scientiarum Polonorum. Hortorum Cultus

|

2004

|

tom 03

|

nr 2

Proteolysis and free amino acid accumulation occur during leaf senescence. As senescence is under control of plant hormones leaves of Zantedeschia aethiopica Spr. and Zantedeschia elliottiana Engl., two species grown for the florists’ green, were pulse treated 24 hours with solutions of benzyladenine or gibberellic acid (0.1 mmol·dm⁻³ and 0.25 mmol·dm⁻³, respectively) in order to delay senescence and to prolong their vase life. GA₃ but not BA retarded proteolysis in both species. A standard preservative solution used to prolong the longevity of cut (8-HQC + 2% S; 8-hydroxyquinoline citrate + 2% sucrose) accelerated proteolysis in the Z. aethiopica leaves but had no effect on leaves of Z. elliottiana. Soluble protein losses were accompanied by elevated levels of free amino acids, however, range of these increases did not correspond to decreases in protein contents. A massive accumulation of free amino acids occurred in the sugar-fed leaves of both species. Growth regulators somewhat limited free amino acid accumulation in leaves held in the preservative, BA being more effective in Z. elliottiana while GA₃ in Z. aethiopica.

12

Ammonium and proline accumulation in senescing cut leaves of Zantedeschia

67%

Rabiza-Swider J., Lukaszewska A., Skutnik E., Leszko M.

Acta Physiologiae Plantarum

|

2004

|

tom 26

|

nr 4

13

Effect of pulsing with growth regulators on senescence of the detached cold-stored leaves of Zantedeschia aethiopica Spr. and Hosta 'Undulata Erromena'

67%

Skutnik E., Rabiza-Swider J.

Acta Scientiarum Polonorum. Hortorum Cultus

|

2005

|

tom 04

|

nr 2

Cut leaves of Zantedeschia aethiopica Spr. and Hosta ‘Undulata Erromena’ are widely used as the florists’ green. Effect of pulsing leaves with growth regulators and a storage method (dry or wet, in light or darkness, at 5°C) on postharvest longevity and chlorophyll content was investigated. Leaf vase life after 3 days storage was evaluated at 20°C and 12 h light/12 h night. Results confirmed that a dry and dark storage of Zantedeschia leaves negatively affected their decorative values while for Hosta foliage a dry storage was improper both in darkness and in light. Negative effects of storage conditions could – at least partly – be alleviated by a 24 h puls conditioning with gibberellic acid or benzyladenine for Zantedeschia and Hosta, respectively. In Zantedeschia the pulsed leaves cold stored in darkness had their vase life seven-fold that of non pulsed leaves. In Hosta pulsing leaves with BA prior to storage increased their vase life six times relative to untreated leaves, however, the cytokinin did not completely overcome a negative effect of dry storage. Positive action of both growth regulators was reflected in the leaf higher chlorophyll contents at all sampling dates.

14

Proteolysis and expression of the cysteine protease gene in senescing cut leaves of Hosta Undulata Erromena and Zantedeschia aethiopica Spr. treated with BA or GA3

67%

Rabiza-Swider J., Rybka Z., Skutnik E., Lukaszewska A.

Acta Physiologiae Plantarum

|

2003

|

tom 25

|

nr 4

15

Biale i kolorowe

67%

Janowska B.

Kwietnik

|

2001

|

nr 03

6-9

16

Kalle-kwiaty do wszystkiego

67%

Pindel Z.

Kwiaty

|

1998

|

nr 2

12-13

17

Cantedeskie na dzialce

59%

Janowska B.

Działkowiec

|

2009

|

nr 08

14-16

18

Obrazkowate

59%

Skutnik E.

Działkowiec

|

2001

|

nr 12

18-20

19

Wakacje w sadzawce

51%

Gawrys W.

Kwietnik

|

2004

|

nr 05

46-48

20

Kalla nie tylko biala

50%

Oszkinis K.

Kwiaty

|

1993

|

nr 2

14-16

Ograniczanie wyników

The effect of growth regulators on stomatal aperture in senescing cut leaves of Zantedeschia aethiopica Spr. and Hosta Tratt. ‘Undulata Erromena’

Effect of light on senescence of cut leaves of Zantedeschia aethiopica Spr. and Hosta Tratt. 'Undulata Erromena'

Wply wybranych soli wapniowych na pozbiorcza trwalosc lisci cantedeskii etiopskiej [Zantedeschia aethiopica Spr.] i funkii [Hosta Tratt.]

Lipoxygenase in senescing cut leaves of Zantedeschia aethiopica Spr. and Hosta 'Undulata Erromena' treated with GA3 or BA

Senescence of cut leaves of Zantedeschia aethiopica and Z. elliottiana. Part III. The reducing sugars content

Senescence of cut leaves of Zantedeschia aethiopica and Z. elliottiana. Part I. Chlorophyll degradation

Kwitna zima

Nasze kwiaty doniczkowe. Cantedeskia

Nie tylko iglaste drzewko

O cantedeskii raz jeszcze [cz.I]

Senescence of cut leaves of Zantedeschia aethiopica and Z. elliottiana. Part II. Free amino acids accumulation in relation to soluble protein content

Ammonium and proline accumulation in senescing cut leaves of Zantedeschia

Effect of pulsing with growth regulators on senescence of the detached cold-stored leaves of Zantedeschia aethiopica Spr. and Hosta 'Undulata Erromena'

Proteolysis and expression of the cysteine protease gene in senescing cut leaves of Hosta Undulata Erromena and Zantedeschia aethiopica Spr. treated with BA or GA3

Biale i kolorowe

Kalle-kwiaty do wszystkiego

Cantedeskie na dzialce

Obrazkowate

Wakacje w sadzawce

Kalla nie tylko biala