Introduction to Pomology MCQs (Quiz 14) Posted on July 23, 2026Author agropublishers 0 1. Among the fruit crops _____________ is commonly propagated through seed because of its dioecious nature Mango Litchi Guava Papaya 2. Mango is considered a highly domesticated fruit tree. ____________________- is most important for maintaining elite mango cultivars Natural layering and stooling are the only methods of propagation Sexual reproduction through open pollination every generation Vegetative propagation via grafting on seedling or clonal rootstocks Continuous introgression with wild Mangifera species each year 3. Sweet oranges evolved as a natural, ancient hybrid between ___________________________ Lemon × Citron Mandarin × Pomelo Citron × Lime Pomelo × Kumquat 4. __________________ is the fruit crop highly sensitive to waterlogging, as its roots rapidly suffer from oxygen deprivation and die within 24 to 48 hours of flooding Avocado Coconut Date palm Fig 5. The cultivated pineapple is believed to have originated in _______________________ Malaysia India China South America 6. Among the propagation method ______________________ produces genetically identical offspring to the mother plant Seed propagation Hybridization Vegetative propagation Mutation breeding 7. Seed propagation is primarily employed in fruit crops for _____________________________ Rapid multiplication Commercial orchard establishment Rootstock production and breeding programmes Maintaining clonal fidelity 8. What key meiotic problem arises in triploid bananas that contributes to their sterility? Chromosomes fail to replicate during interphase, so there are no chromatids entering meiosis Homologous chromosomes cannot form consistent bivalents, leading to irregular segregation and unbalanced gametes Spindle fibers fail to form, so chromosomes remain in the nucleus and meiosis stops at prophase Crossing over is completely blocked, so genetic recombination cannot occur and embryos abort 9. Among the nutrients, deficiency of _______________ commonly causes interveinal chlorosis in young leaves of fruit crops Nitrogen Iron Potassium Magnesium 10. Plant growth regulator _________________ is most commonly used to delay fruit drop in apple orchards Abscisic acid (ABA) Ethephon Gibberellic acid (GA3) Naphthalene acetic acid (NAA) Loading … Question 1 of 10
