Postharvest Technology MCQs (Set 7) Posted on August 22, 2026Author agropublishers 0 1. Excessive fruit softening after harvest, increases their susceptibility to _______________ Water absorption Reduced pathogen infection Bruising and microbial infection Improved transportability 2. Which postharvest treatment predominantly promotes fruit coloration and early ripening in green-ripe tomato fruit? High-density polyethylene Exogenous application of 5-Aminolevulinic acid (ALA) Vacuum packaging Hydrogen-rich water 3. In postharvest management of horticultural products, typical symptoms of chilling injury in susceptible fruits and vegetables include _____________________ Enhanced color development Pitting, browning, and uneven ripening Improved ripening and firmness Increased sugar accumulation 4. Blossom-end rot in tomatoes is primarily associated with which of the following conditions? Disrupted calcium homeostasis and irregular water supply during fruit development Lowered oxygen levels during storage Increased ethylene production during postharvest storage Postharvest fungal infection 5. Which external condition generally increases water loss from harvested horticultural produce? Reduced air movement High relative humidity Low temperature Low relative humidity 6. In postharvest fruit physiology, the conversion of 1-aminocyclopropane-1-carboxylic acid (ACC) to ethylene is catalyzed by ___________________ ACC oxidase Pectin methylesterase Polygalacturonase ACC synthase 7. From a postharvest management perspective, fruit ripening generally results in ____________________ Reduced shelf life and increased susceptibility to microbial infection Complete resistance to physical damage Increased firmness Increased resistance to microbial infection 8. What is the importance of maintaining horticultural quality beyond considerations of physical appearance? Quality has no relationship with human nutrition Fruit and vegetables have no nutritional significance Horticultural products provide essential nutrients and bioactive compounds with potential functional food and nutraceutical value Only appearance determines their nutritional value 9. Which sequence contains only postharvest technologies or operations? Irrigation, fertilization and pruning Soil preparation, irrigation and harvesting Sorting, grading, packaging, storage and transportation Pollination, flowering and fertilization 10. Gibberellin treatment can delay postharvest fruit softening primarily by ____________________________ Increasing cell-wall degradation Increasing respiration intensity Retarding physiological processes associated with ripening and senescence Increasing ethylene production Loading … Question 1 of 10
