บทคัดย่องานวิจัย

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What effect does the timing of tree and fruit manipulation have on the yield and quality of 'Sensation' mangoes?

Fivaz, J.; Stassen, P. J. C.;

Acta Horticulturae Year: 1997 Issue: No. 455 Pages: 315-322 Ref: 16 ref.

1997

บทคัดย่อ

What effect does the timing of tree and fruit manipulation have on the yield and quality of 'Sensation' mangoes?

The yield of the late mango cultivar Sensation is adversely affected in cooler regions by postharvest pruning. Sensation often does not produce adequate sized fruits for export. Five-year-old Sensation mangoes on Sabre rootstocks in Nelspruit, South Africa were pruned in 1994 and 1995. The pruning method had to allow a degree of thinning to ensure full potential yields of the trees, and to enable approx equal to 50% of the bearer shoots to be cut back in and harden-off in time to produce the crop in the following season. Three pruning treatments (postharvest, October and November) were compared with unpruned controls. In the first season, yields were significantly higher in control trees (31.81 kg/tree) than in pruned trees (18.44-21.74 kg/tree). In the second season, pruning in October produced significantly higher yields (40.7 kg/tree) than the other treatments (29.6, 27.1 and 28.4 kg/tree for controls, postharvest and November pruning, respectively). Fruits from the October-pruned trees were

significantly larger (392.9 g/fruit) than from the other treatments (282.3, 328.3 and 341.5 g for controls, postharvest and November pruning, respectively) in the first season, and significantly larger (323.2 g) than the controls (274.4 g) in the second season. The effects of the pruning treatments on firmness, colour and total soluble solids of the fruits are tabulated.