|Authors: ||K. Juntamanee, S. Onnom, S. Yingjajaval, S. Sangchote|
|Keywords: ||fruit quality, mango, photosynthesis, plastic roof|
Rain and high humidity during off-season flowering period cause low yield and poor quality.
The objective of this experiment was to study the effect of transparent PVC plastic roof on reducing splashing force of rains and increase fruit set and quality.
Comparisons of changing in microclimate and leaf gas exchange under plastic roof and natural condition were examined.
Plastic roof could reduce photosynthetic photon flux by 26.61%. Both day and night temperature, relative humidity at night was not different.
Mango trees under plastic roof had more net photosynthesis rate at blooming period than field condition.
Due to the mango’s leaf having higher stomatal conductance and lower vapor pressure deficit of the leaf (VPDleaf) than uncovering.
Plastic roof could not increase fruit set but increased fruit quality by giving a lighter peel color at ripening time.
Furthermore, plastic roof reduced anthracnose at pre- and post-harvest period, decreased severity of fruit rot at ripening stage and completely controlled thrip damage on the fruit surface.
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