Postharvest Technology MCQs (Set 6) Posted on August 22, 2026Author agropublishers 0 1. Which postharvest-related disorders have been linked to calcium nutrition? Chilling injury None of these Fungal decay Blossom-end rot in tomato 2. In harvested fruits and vegetables, respiration involves the oxidative breakdown of ______________________ Cellulose Proteins Stored carbohydrates and organic acids Minerals and vitamins 3. Under low oxygen conditions, fruits and vegetables may shift to anaerobic respiration, resulting in the production of ________________ Acetaldehyde and ethanol Pectin and cellulose Chlorophyll and carotenoids Sucrose and starch 4. Bent-neck is an important postharvest disorder particularly associated with ____________ Cut roses Potatoes Apples Tomatoes 5. The accumulation of ethanol and acetaldehyde during storage can cause ____________ Increased firmness Improved aroma Unpleasant off-flavors Enhanced nutritional quality 6. Which physiological response can be reduced by gibberellin treatment during postharvest storage? Respiration intensity Photosynthesis Seed germination Water absorption 7. Fruits and vegetables remain metabolically active after harvest because they _________________________ Continue photosynthesis at the same rate as before harvest Continue certain physiological processes Become physiologically inactive Stop all physiological processes immediately 8. Which approach is most appropriate for reducing postharvest losses throughout the supply chain? Focusing exclusively on storage Integrating production, harvesting, handling, storage, transportation, and marketing practices Focusing exclusively on packaging Focusing exclusively on harvesting 9. In postharvest physiology, transpiration in harvested fruits and vegetables primarily results in _______________ Water loss, wilting, shriveling, and loss of firmness Increased respiration efficiency Increased sugar and water accumulation Improved turgidity 10. Considering postharvest physiology, the immediate precursor of ethylene in its biosynthetic pathway is __________________ 1-Aminocyclopropane-1-carboxylic acid (ACC) Acetaldehyde Methionine Sucrose Loading … Question 1 of 10