Introduction to Pomology MCQs (Quiz 15) Posted on July 23, 2026Author agropublishers 0 1. Biosynthesis of hormone ______________ is inhibited by paclobutrazol Cytokinin Gibberellin Ethylene Auxin 2. In citrus species, seeds are commonly used for ______________________ Raising rootstocks Commercial fruit production Air layering Micropropagation 3. Select correctly matched fruit crop–scientific name pair Coconut — Cocos nucifera Cinnamon — Elaeis guineensis Arecanut — Fragaria chiloensis Oil palm — Borassus flabellifer 4. Select correctly matched fruit crop–botanical family pair Cashew — Myrtaceae Guava — Anacardiaceae Litchi — Sapindaceae Banana— Rutaceae 5. The greatest disadvantage of seed propagation in perennial fruit crops is _________________________ Low germination Poor root development Genetic variability and prolonged juvenile phase Poor nutrient uptake 6. Why are most commercial seedless bananas described as triploid rather than diploid or tetraploid? They have two sets of chromosomes, allowing perfect pairing in meiosis They have three sets of chromosomes, disrupting normal pairing in meiosis They have four sets of chromosomes, which always pair correctly in meiosis They have only one set of chromosomes, so they skip meiosis entirely 7. Naphthalene acetic acid (NAA) belongs to which class of plant growth regulators? Synthetic Cytokinins Synthetic Gibberellins Growth retardants Synthetic auxins 8. The greatest advantage of vegetative propagation is that it produces ______________________________ Polyploid plants True-to-type plants Disease-resistant plants Hybrid seedlings 9. In table grape production, main purpose of applying gibberellic acid (GA3) shortly after berry set is __________________ To induce uniform leaf fall before harvest To promote berry thinning by causing flower drop To stimulate earlier coloration and ripening To increase berry size and improve cluster looseness 10. Select correctly matched fruit crop–botanical family pair Blueberry — Rosaceae Cranberry — Ericaceae Lingonberry — Rosaceae Gooseberry — Ericaceae Loading … Question 1 of 10
