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