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