Horticulture MCQs Set V


The quiz is designed to assess your understanding about the Horticulture. These MCQss is prepared by the Professors of Horticulture department and very much helpful for CSS, PMS, NTS, PPSC, FPSC, SPSC, lecturer, GRE Subject, LDA, PHA and all other competitive examinations. Choose the best answer from four given options. The answer keys is given at the end of the test


Horticulture MCQs Set V

Select one option out of four given options

  1. Why a propagator trim the leaves of large-leaved cuttings?




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  3. What type of cutting does not become woody?




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  5. Sodium hypochlorite is used:




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  7. Secondary dormancy is due to:




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  9. Cutting most oftenly used in fruit plants are:




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  11. Which of the following fertilizer carries 46% nitrogen




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  13. Red top is the variety of




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  15. Alternate bearing in mangoes is due to




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  17. Windproof shelterbelts are




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  19. Plants control direct sunlight and intercept glare by means of




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  21. Roses can successfully be cultivated at a temperature




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  23. Tulip is an example of




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  25. Ground cover includes of plants




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  27. Which of these shrub produce fragrant flowers




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  29. The danger signs of too little water are




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  31. For potting plants the pH should be_____




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  33. Double delight is a variety of rose which belongs to a group of :




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  35. Chrysanthemums are propagated through




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  37. Which of the following annual is used in rock gardening?




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  39. Which of the following annual is used as ground cover?




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  41. Which of these annual is long season bloom




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  43. Which of these are temporary visitor in the garden plantation.




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  45. During the summer, day time temperature in the forest are commonly cooler than open areas




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  47. Where the physiotherapy in floriculture can be exercised?




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  49. Lotus is famous for




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  51. For foundation plantings, plants should be




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  53. Which of these create overall effect of various features, styles and colour schemes of the total scene.




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  55. When regarding chromosome number




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  57. Which of the following are characteristics of prophase?




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  59. Fusion of protoplasts is done by




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  61. A clone is a colony of




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  63. The longest phase in mitotic division is




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  65. The seedless watermelon, Citrullus lanatus, that is commonly used all over the world, is:




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  67. Mango trees bear which type of flowers?




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  69. The cultivated tomato originated from wild forms in which region




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  71. Polyembryony in citrus is obstacle in cultivar improvement but rootstock propagation




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  73. The species which produce seed from vegetative cells and not through sexual means are called




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  75. Cucurbitaceae family has which type of plants on the basis of sex of flowers




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  77. Who is the breeder of famous Kinnow mandarin?




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  79. Mango varieties grown in Pakistan generally produce seed




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  81. The Kinnow hybrid, bred in USA, has parent




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  83. Increased genetic diversity following extended time in a tissue culture is a problem called




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  85. A mass of dividing, undifferentiated cells in a tissue culture is called




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  87. Electroporation is a technique used with




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  89. To produce plants that are homozygous for all traits, the best choice is




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  91. Cell suspension cultures require




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  93. If you want to use a plant tissue culture as a chemical factory for vitamins, choose




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  95. The fastest way to a ripe tomato using tissue culture is by




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  97. For aseptic cultures in tissue culture, which equipment is not necessary?




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  99. Flower opening is termed as




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  101. The four main parts of a flower are




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  103. Pollination is a sexual process in which pollen is deposited on the stigma of the plant. It starts the process of fertilization and ---




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  105. Watermelon is a crop with floral biology




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  107. A plant composed of two or more genetically different tissues is called




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  109. Citrange citrus is the intergeneric hybrid, with its parents?




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  111. Megasporogenesis is the formation of which gametes?




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  113. A thin, delicate, cellulose inner layer in a pollen grain wall is known as




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  115. A plant useful in the study of plant genomes because of its small genome size is




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  117. Most plant tissue cultures are initiated from




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  119. Pores in protoplasts may be opened to DNA by the application of




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  121. Which of the following are mismatched?




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  123. Plant transformation is




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  125. Unlike the somatic cells of animals, plant cells can be grown in tissue culture and regenerate new plants




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  127. Phenolic compounds, a cause of medium browning, are mostly released by which plants




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  129. What is the structural nature of enzymes?




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  131. The male sterile plants due to cytoplasmic genes are termed as




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  133. Hyperhydric malformation occurring during in vitro propagation is termed




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  135. The use of living organism or their by-products to modify human health and environment is




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  137. The ability of somatic cells to grow into a complete plant is termed as




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  139. Somatic variation is occurred in which cells




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  141. Incompatibility, a problem in plants hybridization programs, can be over come by




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  143. The process of formation of two or more embryos in the seed is known as




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  145. The 2n number of chromosome in citrus is




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  147. Which is not the method to check pollen viability in the laboratory?




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  149. The one reason of unfruitfulness in fruits may be




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  151. Polyembryony reflects the number of embryos per seed




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  153. Which of the following is involved in seedless watermelon production?




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  155. The quickest way to produce homozygous breeding lines from heterozygous parents is through




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  157. Which of the following is an example of an active meristematic tissue in plants?




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  159. Which of the following describes an appropriate technique for commercially propagating chimeras?




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  161. Which of the following accurately describes the role of restriction enzymes in genetic engineering?




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  163. Mendel’s principle of independent assortment is best explained by the arrangement of chromosomes in




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  165. A variant among clones is known as




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  167. A cell without cell wall is called




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  169. A medium without addition of agar is called




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  171. Fusion of nucleus of one plant cell with cytoplasm of the other cell is called




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  173. Distilled water after autoclaving is known as




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  175. The genetic constitution of an organism is termed as




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  177. A small circular molecule of double stranded DNA naturally occur in bacteria and yeast is called




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  179. The temperature of the autoclave for the sterilization of culture medium is




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  181. Which concentration of ethanol is generally applied for asepsis of explants?




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  183. Which plant part is taken for isolation of protoplast in somatic hybridization?




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  185. The regeneration of organs or organ-like structure or (pro) embryo from callus is termed as




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  187. Which group of plant hormones induces among other things, cell elongation and cell division?




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  189. A cell with two or more identical nuclei as a result of protoplast fusion is known as




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  191. Haberlandt was the first who made attempts for cell cultures in the year




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  193. All of the following are examples of evolution, except:




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  195. DNA replication occurs in which phase?




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  197. When the ratio of auxin to cytokinin in tissue culture is low




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  199. Mendel's discovery that characteristics are inherited due to the transmission of hereditary factors resulted from his




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