Introduction to Pomology MCQs (Quiz 17) Posted on July 24, 2026Author agropublishers 0 1. Marketable yield differs from total yield because it primarily excludes __________________________ Damaged, diseased, or undersized fruits Immature fruits Export-quality fruits Fruits from young trees 2. In citrus production, __________________ is applied to reduce fruit drop and improve fruit retention during the early stages of development 2,4-D (2,4-dichlorophenoxyacetic acid) Abscisic acid Ethephon Gibberellic acid 3. In banana production, plant growth regulator _____________ is commonly used post-harvest to delay ripening during transport and storage Abscisic acid 1-methylcyclopropene Ethylene gas Gibberellic acid 4. What role does parthenocarpy play in the formation of seedless banana fruits? Parthenocarpy allows fruits to develop without fertilization Parthenocarpy ensures that meiosis does not occur in the ovules Parthenocarpy stops flower formation entirely, preventing any fruit or seed development in the plant Parthenocarpy causes all ovules to be fertilized twice 5. In plants, abscisic acid (ABA) plays an important role in_______________________ Increasing vegetative growth Stress tolerance Breaking seed dormancy Delaying abscission 6. ______________________ exhibits stenospermocarpy rather than true parthenocarpy Fig Pineapple Seedless grape Banana 7. Which orchard floor management practice primarily aims to conserve soil moisture and suppress weeds? Deep plowing Mulching Summer pruning Girdling 8. Fruit thinning improves fruit size mainly because the remaining fruits receive more _________________ Nitrogen Chlorophyll Hormones Photosynthates, water, and nutrients 9. The principal objective of intercropping in young orchards is to _____________________________ Delay flowering Reduce fruit size Utilize available land efficiently before full canopy development Reduce tree vigor 10. The primary economic advantage of fruit grading is to ______________________ Increase fruit respiration Standardize quality for marketing Reduce flowering variation Increase seed germination Loading … Question 1 of 10
