Effects of Aminoethoxyvinylglycine on Harvest Time and Fruit Quality of ‘Monroe’ Peaches

Abstract

This study was conducted to prolong the harvest date and enhance the fruit quality of ‘Monroe’ peaches. For this purpose, ReTain containing 15% aminoethoxyvinylglycine (AVG) was applied to the peach fruits. AVG at concentrations of 0, 100, 150 and 200 mg l -1 was sprayed on the peaches 7, 21 and 30 days before commercial harvest. Some fruit quality parameters [fruit weight (g), fruit flesh firmness (N), soluble solids content (SSC, %), titratable acidity (TA, %), fruit colour (L*, a*, b*), sugar content, delay in harvest, ethylene production (µl kg-1 h-1) and respiration rate (ml CO2 kg-1 h-1)] were measured for each treatment. Fruit maturity was delayed about 4-6 days more in AVG-applied fruits than in the control group. A sequential harvest was completed 6-7 days before the normal harvest time. Application of AVG increased the fruit size and fruit weight of ‘Monroe’ peach. AVGsprayed fruits were firmer than the fruits of control group. AVG applications also decreased ethylene production and the respiration rate of fruits. As a results, application AVG of 100 or 200 mg l -1 concentrations 30 days before commercial harvest for 'Monroe' peach varieties can be recommended. 

Keywords

• AVG
• Fruit quality
• Harvest date
• ‘Monroe cv.’
• Peach
• Ripening

Aminoethoxyvinylglycine’ nin ‘Monroe’ Şeftali Çeşidinde Hasat Zamanı ve Meyve Kalitesi Üzerine Etkileri

Abstract

Bu çalışmanın amacı ‘Monroe’ şeftali çeşidinde hasat tarihini geciktirmek ve meyvelerin kalitesini arttırmaktır. Bu amaçla, % 15 aminoethoxyvinylglycine (AVG) içeren ReTain bitki büyüme düzenleyicisi şeftali meyvelerine uygulanmıştır. AVG’ nin 3 farklı dozu (0, 100, 150, 200 mg L^-1), tahmini hasat zamanından 7, 21 ve 30 gün önce şeftali meyvelerine sprey şeklinde uygulanmıştır. Meyvelerde bazı kalite özellikleri (meyve ağırlığı (g), meyve eti sertliği (N), SCKM (%), titre edilebilir asitlik (%), meyve rengi (L*, a*, b*), şeker miktarı), hasat tarihinin gecikmesi, meyvelerin etilen üretimi (µL kg^-1 h^-1) ve solunum hızları (mL.CO₂ kg^-1 h^-1) her bir uygulama için ayrı ayrı incelenmiştir. AVG uygulamaları ile meyve olgunluğu kontrol grubuna göre 4-6 gün gecikmiş ve kademeli yapılan hasat, normal hasat periyoduna göre 6-7 gün önce tamamlanmıştır. Tüm uygulamalar ‘Monroe’ şeftalisinde meyve büyüklüğünü ve ağırlığını arttırmıştır. AVG uygulanan meyvelerin sertliği kontrol meyvelerine göre daha serttir. AVG uygulamaları ile meyvelerde etilen üretimi ve solunum hızı azalmıştır.

Keywords

• AVG
• Meyve kalitesi
• Hasat tarihi
• ‘Monroe’
• Şeftali
• Olgunluk

References

1. Amarante C V T do, Drehmer A M F, Souza F de & Francescatto P (2005). Preharvest spraying with gibberellic acid (GA3) and aminoethoxyvinylglycine (AVG) delays fruit maturity and reduces fruit losses on peaches. Revista Brasilerie de Fruticultura 27(1): 1-5
2. Autio W R & Bramlage W J (1982). Effects of AVG on maturation, ripening, and storage of apples. Journal of The American Society for Horticultural Science 107: 1074-1077
3. Boller T, Hernel R C & Kende H (1979). Assay for and enzymatic formation of an ethylene precursor, 1- aminocyclopropane-1-carboxylic acid. Planta 145: 293
4. Bramlage W J, Greene D W, Autio W R & McLaughlin J M (1980). Effects of aminoethoxyvinylglycine on internal ethylene concentrations and storage of apples. Journal of the American Society For Horticultural Science 105: 847-851
5. Bregoli A M, Scaramagli S, Costa G, Sabatini E, Ziosi V, Biondi S & Torrigiani P (2002). Peach (Prunus persica) fruit ripening: aminoethoxyvinylglycine (AVG) and exogenous polyamines affect ethylene emission and flesh frimness. Physiologia Plantarum 114: 472-481
6. Chapman G W & Horvat R J (1990). Changes in nonvolatile acids, sugars, pectin, and sugar composition of pectin during (cv. Monreo) maturation. Journal of Agricultural and Food Chemistry 38(2): 383-387
7. Colaric M, Stampar F & Hudina M (2004). Contents of sugars and oraganic acids in the cultivars of peach (Prunus persica L.) and nectarine (Prunus persica var. nucipersica Schneid.). Acta Agriculturae Slovenica 83(1): 53-61
8. Curry E A (1998). Ethylene in fruit physiology. In: Procceeding of 1998 Washington Tree Fruit Postharvest Conference, 69-73, (Washington State Horticultural Association: Wenatchee)

9. Gunes G, Watkins C B & Hotchkiss J H (2001). Physiological responses of fresh-cut apple slices under high CO2 and low O2 partial pressures. Postharvest Biology and Technology 22: 197-204
10. Hartmann H T, Kester D E, Davies Jr F, Geneve R L (1997). Plant propagation principles and practies. Sixth Edition, Prentice Hall, New Jersey, pp 155- 223
11. Holland B, Unwin I D, Buss D H (1992). Fruits and nuts. The composition of foods. The Bath Press, United Kingdom, pp 50-55
12. Ju Z G, Duan Y S & Ju Z Q (1999). Combinations of GA3 and AVG delay fruit maturation, increase fruit size and improve storage life of ‘Feicheng’ peaches. The Journal of Horticultural Science & Biotechnology 74: 579-583
13. Kaşka N & Yılmaz M (1974) Bahçe Bitkileri Yetiştirme Tekniği. Çukurova Üniversitesi Ziraat Fakültesi Yayınları Ders Kitabı (Hartmann, H.T., Kester, D.E., Kester. Tercüme), Adana, 2: 79
14. Kim I S, Choi C D, Lee H J & Byun J K (2004a). Effects of aminoethoxyvinylglycine on preharvest drop and fruit quality of ‘Mibaekdo’ peaches. Proc. 9th IS on Plant Bioregulators, Acta Horticulture 653: 173-178
15. Kim Y H, Lim S C, Youn C K, Lee C H, Yoon T & Kim TS (2004b). Effects of foliar application of choline chloride and GA on growth, coloration, and quality of ‘Mibaek’ peaches. Proc. 9th IS on Plant Bioregulators, Acta Horticulture 653: 179-186
16. Matoo A K, Baker J E, Chaluts E & Lieberman M (1977). Effect of temperature on the ethylenesynthesizing in apple, tomato, and Penicillium digitatum. Plant Cell Physiology 18: 715-719
17. McGlasson W B, Rath A C & Legendre L (2005). Preharvest application of aminoethoxyvinylglycine (AVG) modifies harvest maturity and cool storage life of ‘Arctic Snow’ nectarines. Postharvest Biology and Technology 36: 93-102
18. Mordoğan N & Gönülsüz E (2000). Aseton, DMF ve DMSO klorofil metodları ile şeftali bahçelerinin klorofil miktarlarının belirlenmesi. Ege Üniversitesi Ziraat Fakültesi Dergisi 37: 59-66
19. Noppakoonwong U, Sripinta P, Rath A C, George A P & Nissen RJ (2005). Effect of Retain and potassium chloride on peach fruit quality in the subtropical highlands of Thailand. Production Technologies For Low-Chill Temperate Fruits. Reports From The Second International Workshop, 19-23 April, Chiang Mai, Thailand
20. Park M Y, Kweon H J, Kang I K & Byun J K (1999). Effects of AVG application on harvest time extension and storability improvements in ‘Tsugaru’ apples. Journal of The Korean Society for Horticultural Science 40: 577-580
21. Rath A C & Prentice AJ (2004). Yield increase and higher flesh firmness of ‘Arctic Snow’ nectaries both at harvest in Australia and after export to Taiwan following pre-harvest application of Retain plant growth regulator (Aminoethoxyvinylglycine, AVG). Australian Journal of Experimental Agriculture 44: 343-351
22. Rath A C, Wargo J M & Mills S (2004). Aminoethoxyvinylglycine (AVG) applications to commercial blocks of ‘Tatura 204’, ‘Golden Queen’ and ‘Taylor Queen’ peaches delays fruit maturity and increases fruit size and quality. Acta Horticulturae 653: 167-171
23. Ross F A (1959). Dinitrophenol method for reducing sugars. In: W F Talburt & O Smith (Eds.), Patato Processing, AVI Publishing Comp., Connecticut, pp. 469-470
24. Sanz A, Martinez-Cortina C & Guardiola J L (1987). Changes in carbonhydrates and mineral elements in Citrus leaves during flowering and fruit set. Physiologia Plantarum 69: 93-98
25. Singh Z, Kennison K & Agrez V (2003). Regulation of fruit frimness, maturity and quality of later maturing cultivars of peach with preharvest application of ReTain. Proc. XXVI IHC-issues and advances in postharvest hort. Acta Horticulture 628: 277-283
26. Ünlü M (2000). Çukurova koşullarında mikrometeorolojik yöntemlerle pamuk su tüketiminin ve bitki katsayılarının belirlenmesi. Doktora tezi, Çukurova Üniversitesi, Fen Bilimleri Ensitüsü, Adana