Introduction to Pomology MCQs (Quiz 14) Posted on July 23, 2026Author agropublishers 0 1. __________________ 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 Coconut Avocado Date palm Fig 2. Among the nutrients, deficiency of _______________ commonly causes interveinal chlorosis in young leaves of fruit crops Iron Potassium Magnesium Nitrogen 3. 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 Spindle fibers fail to form, so chromosomes remain in the nucleus and meiosis stops at prophase Homologous chromosomes cannot form consistent bivalents, leading to irregular segregation and unbalanced gametes Crossing over is completely blocked, so genetic recombination cannot occur and embryos abort 4. Mango is considered a highly domesticated fruit tree. ____________________- is most important for maintaining elite mango cultivars Sexual reproduction through open pollination every generation Natural layering and stooling are the only methods of propagation Continuous introgression with wild Mangifera species each year Vegetative propagation via grafting on seedling or clonal rootstocks 5. Seed propagation is primarily employed in fruit crops for _____________________________ Rootstock production and breeding programmes Commercial orchard establishment Maintaining clonal fidelity Rapid multiplication 6. Plant growth regulator _________________ is most commonly used to delay fruit drop in apple orchards Ethephon Gibberellic acid (GA3) Naphthalene acetic acid (NAA) Abscisic acid (ABA) 7. Among the fruit crops _____________ is commonly propagated through seed because of its dioecious nature Papaya Mango Guava Litchi 8. Sweet oranges evolved as a natural, ancient hybrid between ___________________________ Pomelo × Kumquat Mandarin × Pomelo Lemon × Citron Citron × Lime 9. Among the propagation method ______________________ produces genetically identical offspring to the mother plant Vegetative propagation Mutation breeding Seed propagation Hybridization 10. The cultivated pineapple is believed to have originated in _______________________ China Malaysia South America India Loading … Question 1 of 10
