Unit 3 Flashcards
(46 cards)
This refers to the external and internal characteristics used to describe a commodity relative to a standard of excellence.
Quality
The existing environmental factors during the production of the crop and crop practices adopted by growers influence the nature of the commodity at harvest.
Pre-harvest Modifiers of Quality
Carabao mango defects which are caused by climatic factors
Wind scar and mottling/discoloration
A physiological disorder in mangoes wherein the peel is dark green even when the pulp is ripe.
Evergreen
It is expressed in terms of morphological, anatomical, and chemical characteristics and ultimately its physical properties and physiological characteristics
Genetic Factors
Which tomato varieties are more susceptible to mechanical damage?
BRCI (4 locules)
This Indonesian Rambutan cultivar has longer storage life compared to other cultivars due to shorter spinterns and thick skin.
Rapiah
It is the complex and dynamic interactions of numerous environmental factors during the growth and development of a fruit or vegetable.
Climatic factors
Favorable temperature for the growth of tropical plants
5°C to 40°C
The orange color of sweet oranges develop at what temperature?
Lower than 12°C
The exposure to high temperatures for extended periods of time causes softening, degradation of pigments, and collapse of tissue.
Solar injury
Synthesis of lycopene and carotenoids are inhibited by what?
Excessive sunlight
It is favorable to Vitamin C accumulation.
Light exposure
The fruit develops a corky skin when the surfaces of two fruits rub together or when a twig or leaf rub against the fruit.
Wind scar
If these fruits develop during high relative humidity, they become larger and heavier due to higher TSS.
Mangosteen, Citrus, and Rambutan
Increased incidence of this disease in mango occurs during high relative humidity.
Anthracnose
These fruits exhibit lower TSS during rainfall, resulting in stale fruit.
Watermelon and Muksmelon
Fruit splitting defects in Lanzones are due to the sudden change of the ___.
Hydrostatic pressure within cells
With sudden increase of rainfall, water will move into plant cells due to ___.
Osmotic Pressure
Generally adequate water supply during growth and development results in superior quality produce.
Irrigation
Water-logged conditions during growth and development of sab-a resulted in accelerated ripening, thus reducing this effect.
Green life of banana
Onions become soft and rot easily if irrigated ___ weeks before harvest.
2-3 weeks
This plant hormone has autocatalytic effects.
Ethylene
These chemicals serve as defense mechanisms for pests, but reduce postharvest quality and desirability
Phytoalexins
