Effect of tree age and fruit age on fruit development and fruit quality of Pummelo var. Tabtimsiam
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Abstract
Effects of tree age and fruit age on fruit development and fruit quality of Pummelo var. Tabtimsiam. The experiment was conducted at the local orchards of Mr. Wirat Soksang, located in the Klongnoi sub-district, Pakpanang district, Nakhon Si Thammarat province, Thailand from June, 2013 to July, 2014. The effect of tree age 6 and 8-year-old trees could develop as indicated fruit weight(g), peel weight (g), pummelo fresh(g), diameter of fruit (cm) and fruit circumference (cm) was advanced significant difference compared to the 4-year-old trees. Also the fruit quality of tree age 6 and 8-year-old trees most higher total soluble solid (TSS), titratable acidity (TA) and TSS/TA ratio than 4-year-old trees. The fruit age at 6th 6.5th 7th and 7.5th month was develop of fruit weight(g), peel weight (g), pummelo fresh(g), diameter of fruit (cm) and fruit circumference (cm), the result shown that fruit age at 7th and 7.5th months could develop the highest of fruit weight(g), peel weight (g), pummelo fresh(g), diameter of fruit (cm) and fruit circumference (cm) and highest of fruit quality as indicated of TSS, TA and TSS/TA ratio.
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References
Ahmad, S., Thompson, A. K., Perviez, M. A., Anwar, N. and Ahmad, F. (2006a). Effect of fruit size and temperature on the shelflife and quality of ripe banana fruit. Journal of Agricultural Research 44.
Bramlage, W. J. (1993). Interaction of orchard factors and mineral nutrition on quality of pome fruit. Acta Horticulturae 326:15-28.
Dou, H., Jones, S., Obreza, T. and Rouse, B. (2005). Influence of various phosphorous and potassium rates on juice vitamin C, β-carotene, lycopene and sugar concentrations of Flame grapefruit. Proceedings of the Florida State Horticultural Society 118:372-375.
Frometa, E. and Echazabal, J. (1988). Influence of age and cultivar on juice characteristics of early oranges. Agrotecnia de Cuba 20:71-75.
Kaewtubtim, M. and Issarakraisila, M. (2011). Effects of nitrogen and zinc on fruit quality of pummelo cv. Tubtim Sayam. Proceedings of the Commission on Higher Education Congress IV University Staff Development Consortium, Thailand, 14-16 September 2011.
Kramer, P. J. and Kozlowski, T. T. (1979). Physiology of woody plants. New York: Academic Press. 811 pp.
Matsumoto, K., Chikaizumi, S., Oku, H. I. and Watanabe, J. (1972). Studies on the contribution of environmental and internal factors affecting the edible quality and exterior appearance of Satsuma mandarin fruits. Journal of the Japanese Society for Horticultural Science 41:171-178.
Na Nakorn S., Chalumpak C. and Sangwiroonton K. (2015). Effect of crop load on fruit development and fruit quality of pummelo var. Tabtimsiam. Journal of Agricultural Technology 11:2211-2217.
Saleem, B. A., Malik, A. U., Pervez, M. A., Khan, A. S. and Khan, M. N. (2008c). Spring application of growth regulators affects fruit quality of 'Blood red' sweet orange. Pakistan Journal of Botany 40:1013-1023.