Postharvest Technology MCQs (Set 7) Posted on August 22, 2026Author agropublishers 0 1. Gibberellin treatment can delay postharvest fruit softening primarily by ____________________________ Increasing ethylene production Increasing cell-wall degradation Increasing respiration intensity Retarding physiological processes associated with ripening and senescence 2. What is the importance of maintaining horticultural quality beyond considerations of physical appearance? Only appearance determines their nutritional value 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 3. Blossom-end rot in tomatoes is primarily associated with which of the following conditions? Lowered oxygen levels during storage Increased ethylene production during postharvest storage Disrupted calcium homeostasis and irregular water supply during fruit development Postharvest fungal infection 4. In postharvest management of horticultural products, typical symptoms of chilling injury in susceptible fruits and vegetables include _____________________ Pitting, browning, and uneven ripening Increased sugar accumulation Enhanced color development Improved ripening and firmness 5. Which sequence contains only postharvest technologies or operations? Soil preparation, irrigation and harvesting Pollination, flowering and fertilization Irrigation, fertilization and pruning Sorting, grading, packaging, storage and transportation 6. Excessive fruit softening after harvest, increases their susceptibility to _______________ Water absorption Improved transportability Bruising and microbial infection Reduced pathogen infection 7. Which external condition generally increases water loss from harvested horticultural produce? Low temperature Low relative humidity Reduced air movement High relative humidity 8. From a postharvest management perspective, fruit ripening generally results in ____________________ Increased resistance to microbial infection Complete resistance to physical damage Increased firmness Reduced shelf life and increased susceptibility to microbial infection 9. In postharvest fruit physiology, the conversion of 1-aminocyclopropane-1-carboxylic acid (ACC) to ethylene is catalyzed by ___________________ Pectin methylesterase ACC synthase Polygalacturonase ACC oxidase 10. Which postharvest treatment predominantly promotes fruit coloration and early ripening in green-ripe tomato fruit? Exogenous application of 5-Aminolevulinic acid (ALA) Vacuum packaging Hydrogen-rich water High-density polyethylene Loading … Question 1 of 10
