Improvement technology in quality by mulch-cultivation of ponkan fruit [Citrus reticulata]
2002
"Mihara, T. (Kumamoto-ken. Agricultural Experiment Station (Japan)) | Ihara, K. "
"1) Coloring of fruits was promoted in the sheet multi-processing from August to December (at the time of harvest), and the remarkable difference was seen especially in the fruits lower part compared with-less processing. 2) The brix content of fruits was of the same grade, was high, and that of the sheet multi- processing from August and the sheet multi-processing from September. But that of the sheet multi-processing from October was a little low. The difference of the citric acid content of fruits by sheet multi-processing-time was not seen. 3) Compared with the sheet multi-processing from September and October, fruits hypertrophy rate of the sheet multi-processing from August was retarded. 4) As materials of sheet multi, non-water permeability white sheet (tyvek) has improved the brix content of fruits compared with the silver polyethylene sheet or monochrome polyethylene sheet. 5) As the method of sheet multi, whole surface multit has improved the brix content of fruits compared with partial multi. The above result, by performing multi on the whole surface with a non-water permeability white sheet (tyvek) from the middle of August when fruit juice enters, ponkan fruits coloring is promoted and we can aim at improvement which is the brix content of fruits."
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