Rumesh Weerawansha ICOAF 191

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EFFECT OF POSTHARVEST TREATMENTS ON VASE LIFE AND QUALITY OF CORDYLINE FRUTICOSA CUT FOLIAGE

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Slide1:

EFFECT OF POSTHARVEST TREATMENTS ON VASE LIFE AND QUALITY OF CORDYLINE FRUTICOSA CUT FOLIAGE A N R Weerawansha Uva Wellassa University of Sri Lanka , Sri Lanka.

Effect of postharvest treatments on vase life and quality of Cordyline fruticosa cut foliage :

Effect of postharvest treatments on vase life and quality of Cordyline fruticosa cut foliage A N R Weerawansha Uva Wellassa University of Sri Lanka

Slide3:

Conducted at Uva Wellassa University of Sri Lanka Badulla

Details of Investigators:

Details of Investigators Investigator A N R Weerawansha Lecturer Department of Export Agriculture Uva Wellassa University Badulla , Sri Lanka Co - Investigator H A S L Jayasinghe Lecturer Department of Export Agriculture Uva Wellassa University Badulla , Sri Lanka

Content:

Content Introduction Objectives Methodology Results and Discussion Conclusion Recommendation References

Introduction:

Introduction Value of Exports of cut foliage in Sri Lanka has been increased in 7.9 % in 2014 (Statistics: Sri Lanka Customs) Exportation of Cordyline fruticosa cut foliage has marked a significant contribution to the export market

Introduction:

Introduction Scientific Classification Order : Asparagales Family : Asparagaceae Subfamily : Lomandroideae Genus : Cordyline Species : C.  fruticosa

Introduction:

Introduction Description on Plant An evergreen plant The plant ranges in leaf colour from pale white and yellow with green tones to reds The leaves are pointed, oval and blade-shaped

Introduction:

Introduction Problem Statement Short vase life has been identified as a limitation during exportation and that limits the export potential of attractive Cordyline species grown in Sri Lanka

Objectives:

Objectives To identify the most effective vase solution for extending the vase life of Cordyline fruticosa cut leaves

Methodology:

Methodology A set of vase solutions was tested for their efficacies in extending the vase life of Cordyline fruticosa Experimental Units Fully expanded healthy and disease free Cordyline cut leaves aged about four months

Methodology:

Methodology

Vase Life Solutions - Treatments:

Treatment Vase solution T0 (control) T1 T2 T3 T4 T5 T6 T7 T8 T9 T10 T11 Distilled water 10 gl -1 Sucrose 30 ppm Citric Acid 40 ppm Citric Acid 50 ppm Citric Acid 100 ppm CuSO 4 0.25 ppm Aspirin 10gl -1 Sucrose +30 ppm Citric Acid 10gl -1 Sucrose + 40 ppm Citric Acid 10gl -1 Sucrose +50 ppm Citric Acid 10gl -1 Sucrose +100 ppm CuSO 4 10gl -1 Sucrose +0.25 ppm Aspirin Vase Life Solutions - Treatments

Experimental Design:

Experimental Design CRD (Randomized Complete Design) R1 R2 R3 T3 T5 T8 T6 T7 T9 T11 T10 T2 T4 T1 T0 T9 T1 T6 T7 T11 T8 T2 T4 T3 T0 T5 T10 T1 T3 T11 T10 T6 T4 T9 T0 T8 T7 T2 T5 T2 T6 T7 T11 T1 T5 T0 T9 T10 T3 T4 T8 T10 T4 T1 T8 T2 T6 T5 T11 T0 T9 T3 T7 T5 T0 T4 T2 T3 T7 T8 T1 T9 T10 T6 T11 R4 R5 R6

Score Card for Quality Assessment:

Score Card for Quality Assessment Character of the leaves Observations Scale Colour of the Leaves Fresh looking / No blemishes 4 Slightly pale in colour 3 Moderately yellow 2 Severely yellow 1 Level of Leaf Rolling No leaf rolling 4 Starting of leaf rolling 3 Slight rolling of Tip and Margins 2 Complete leaf rolling 1

Data Collection:

Data Collection Daily assessment of quality of leaves by giving the scores based on the level of leaf colour and rolling according to the score card Chlorophyll content- Using chlorophyll Meter

Data Analysis:

Data Analysis Data Mean number of days taken to initiate the changing of score from 4 to 3 Statistical Tools ANOVA Tukey’s Test for mean comparison Statistical Software SAS ® 9.3 Software

Results and Discussion :

Results and Discussion

Vase Life based on Leaf Rolling:

Vase Life based on Leaf Rolling *Means that do not share a letter are significantly different at p= 0.05

Vase Life based on Leaf Colour:

Vase Life based on Leaf Colour *Means that do not share a letter are significantly different at p= 0.05

Change of Chlorophyll Content against Treatments:

Change of Chlorophyll Content against Treatments

Conclusion:

Conclusion 50 ppm citric acid treatment is the most effective preservative solution that can extend the vase life of Cordyline fruticosa cut leaves while maintaining the quality without occurrence of quick deterioration

Recommendations:

Recommendations More trials are recommended to have accurate results of efficacies of different vase life solutions

Acknowledgement:

Acknowledgement Dr. L M H R Alwis / Head, Department of Export Agriculture, Uva Wellassa University of Sri Lanka Technical Assistance provided by Mr. S K Somarathne at Biology Laboratory of Uva Wellassa University of Sri Lanka

References:

References Dole, J.M. and Wilkins, F. (1999). Floriculture principles and species. New Jursey , Prentice Hall, p123-137 Weerahewa , H. L. D. and Somaratne , S. (2011). Effect of some selected vase water additives on vase life of cordyline terminalis 'red' foliage. Annual Academic Session, Open University of Sri Lanka, September, 2011

Thank You:

Thank You

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