บทคัดย่องานวิจัย

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Postharvest performance of 'Braeburn' apples in relation to withholding of irrigation at different stages of the growing season.

Kilili, A. W.; Behboudian, M. H.; Mills, T. M.;

Journal of Horticultural Science Year: 1996 Vol: 71 Issue: 5 Pages: 693-701 Ref: 25 ref.

1996

บทคัดย่อ

Postharvest performance of 'Braeburn' apples in relation to withholding of irrigation at different stages of the growing season.

Seven-year-old Braeburn apple trees on MM.106 rootstocks were subjected to 4 irrigation treatments to investigate the effects of withholding irrigation at different times of the season on fruit maturity, ripening and weight loss. The treatments were: fully watered control (C); early withholding (EW) of irrigation from full bloom until 104 days after full bloom (DAFB); late withholding (LW) of irrigation from 104 DAFB until harvest at 194 DAFB; and no irrigation during the entire growing season (NI). Withholding irrigation during the late and entire growing season produced advanced fruit maturity and earlier ripening than C and EW treatments as indicated by an earlier ethylene climacteric, more yellow background skin colour, and increased TSS concentration. Flesh firmness was higher in NI and LW than in C and EW at harvest and during cold storage at 1 deg C for 7 weeks. Weight loss was higher in C than in EW, LW, and NI. Skin permeance to water vapour was higher in C than in EW and NI. Irrigation

 may therefore be withheld at certain stages in apple production with beneficial effects in terms of reduced weight loss and increased firmness in storage.