Quiznetik

Horticultural Science | Set 8

1. Rose hips are rich source of:

Correct : C. Vitamin C

2. Balled and Bur lapped evergreens may be moved at any time of year except when

Correct : A. New shoots are growing

3. Which of the following are not annual plants?

Correct : A. Asparagus

4. Which of the following annuals are best used for edging

Correct : C. Sweet alyssum

5. Which of the following are good choices as specimen plants in a landscape:

Correct : C. Gold mohr

6. The most common mistake in mowing cool season grasses is to

Correct : A. Mow them too short

7. The name of the person who developed the binomial system for naming plants is

Correct : A. Linneus

8. When used to describe a plant, the word deciduous means that

Correct : B. The plant sheds its leaves each year

9. Flowers which are grown from bulbs include

Correct : B. Tulip

10. Xeriscaping is a landscaping process which requires:

Correct : C. Water conserving

11. Mulching can reduce water loss by:

Correct : B. 90%

12. can be effectively used as windbreak:

Correct : A. Moulsary

13. Sprigging is:

Correct : D. Planting individual plants, runners, or stolons to establish a lawn

14. Grass seed should be carefully covered with soil to a depth of

Correct : B. 1 cm

15. The best way to control weeds from lawn is to develop:

Correct : A. A good healthy thick turf

16. Rolling the lawn each year may be necessary to

Correct : D. All of the above

17. The common name for diffenbachia is

Correct : D. Dumb cane

18. The genus name for croton

Correct : C. Codiaeium

19. When indoor plants are over watered:

Correct : C. Their leaves turn yellow

20. The night temperature of indoor plants should be _________ºF cooler than day time temperature

Correct : D. 10-15

21. Charcoal is used in a terrarium for its

Correct : D. None of the above

22. The use of high nitrogen fertilizers in terrarium soil results in the release of

Correct : B. Ammonia gas

23. Plants tend to grow towards light sources. It is known as

Correct : D. Phototropism

24. Moisture is lost through small openings on the underside of the leaves known as:

Correct : C. Stomata

25. The larger, center most of the plants used in bonsai is cut off:

Correct : B. To cause root branching

26. Site of attraction that holds attention of viewer in a landscape is called;

Correct : C. Focal point

27. Most famous fragrant plant in summer is;

Correct : A. Jasminum sambac

28. Lilium longiflorum, an important holiday potted plant, is commonly known as:

Correct : C. Easter Lily

29. Pansy is very popular winter annual for its

Correct : D. Mixed coloured flower bedding plant

30. Use of a pipe covered by a rope for providing support to some indoor plants like Scindapsus, is termed as:

Correct : B. Totem

31. An open frame work, designed to offer shady resting place is called;

Correct : B. Arbor

32. A line of demarcation that creates visual interest in a landscape by separating one segment from another is called

Correct : A. Edging

33. In landscape shape of tree is called

Correct : B. Form

34. Water gardening is also called,

Correct : A. Equascape

35. Landscape, in which rocks and grasses are used instead of flowers is called

Correct : B. Japanese gardening

36. Which of the statement is true?

Correct : D. Verbena is used as bedding plant

37. Which of the plant is used for is foliage beauty?

Correct : A. Kochia

38. Which annual flower is used ground cover?

Correct : D. Musemberanthemum

39. Which of the statement is true?

Correct : D. Warm season grasses usually respond better to close mowing.

40. An example of a specialty cut flower used in a floral arrangement is a(n):

Correct : C. Orchid

41. Which of the following plant require very light pruning?

Correct : A. Nerium Odorum

42. Which tree bears fragrant flowers?

Correct : D. None of the above

43. Which following creeper bears white flowers?

Correct : B. Plumbago

44. Pinus roxburghii is very healthy growing in;

Correct : D. None of the above zones

45. Low-lying plant that covers some area in the landscape is called;

Correct : B. Ground cover

46. Plants which shed there leaves in autumn are called;

Correct : C. Deciduous

47. is a common disease found on roses grown for cut flowers.

Correct : D. Botrytis

48. Plants for the marginal areas of pond are called

Correct : A. Bog plants

49. Type of contained water feature is

Correct : C. Pond

50. _______________ is used for daily movement in the landscape

Correct : A. Functional path

51. when all the parts of the design suggest a single impression it is called

Correct : D. Unity

52. In Punjab pruning of roses is managed during

Correct : B. Winter

53. Which of the following roses bear clustered flowers?

Correct : D. All of the above

54. The new growth of a Dieffenbachia is weak and spindly, with large gaps between the leaves. The problem is probably:

Correct : D. Lack of light

55. Cuttings of potted chrysanthemums are planted at an angle to encourage:

Correct : A. Increased branching

56. The common name for Zebrina pendula is:

Correct : C. Wandering Jew

57. Which of the following flower types is not suitable for pressing?

Correct : A. Daffodil

58. The most important environmental factor regulating flower initiation in bulbous species is:

Correct : B. Temperature

59. Plant propagation is important because of the reason:

Correct : A. Selected plants chosen to maintain their traits

60. Successful Plant Propagation involves the:

Correct : D. All of these

61. Any detached plant part which, when placed under favorable conditions will produce a new plant identical to the parent plant is called a:

Correct : A. Cutting

62. Which type of cutting is taken in the dormant season when tissues are fully matured and lignified.

Correct : C. Hardwood

63. Colchicine is chemically:

Correct : D. Alkaloid

64. Quinine alkaloids are present in

Correct : D. Cinchona bark

65. This mineral is exposed to high heat and expanded. It is often used as a propagation media.

Correct : B. Vermiculite

66. What are two of the most important qualities for selecting a rooting media?

Correct : C. Water holding capacity and Air holding capacity

67. Which of these four plants which are propagated from herbaceous cuttings.

Correct : A. Carnation, Chrysanthemum, Coleus and Geranium.

68. Why is it important to select cutting free of berries and flowers?

Correct : D. Because they consume much of the food stored and produced by the cutting.

69. Why is it important to transport cutting from the field to the propagation area in a plastic bag?

Correct : B. To help maintain the moisture level of the cutting stock.

70. What is the optimum length for most of cuttings?

Correct : C. 6 to 8 inches

71. The bottom leaves from the cutting should be removed before "sticking" the cutting for which of the following reasons.

Correct : C. Neither A nor B

72. When taking the cutting from the stock plant, at what angle should the cut be made?

Correct : B. 45-degrees

73. When sticking a hard wood cutting, how many nodes should be under the rooting medium?

Correct : A. At least 1

74. Why are rooting hormones applied to cuttings?

Correct : B. To promote the production of a new root system.

75. Why must a hole or furrow be made in the growing media before sticking the cutting?

Correct : A. To prevent the rooting hormone from getting knocked off the end of the cutting.

76. How many seconds should a cutting be held in a liquid IBA rooting hormone?

Correct : B. 5

77. How far should cuttings be inserted into the rooting media?

Correct : C. 1 to 2 inch

78. It is important to firm the soil around the base of the cutting due to following reasons:

Correct : D. Both A and B

79. Why is it important to evenly space the cuttings in the rooting medium?

Correct : C. To make the best use of the propagation space.

80. What portion of the stem of a cutting should be coated with rooting hormone?

Correct : C. The portion of the stem that will be under the media.

81. What is the final step of preparing cuttings?

Correct : D. Watering-in and placing the cuttings on a mist bed.

82. Why must any left over rooting hormone be discarded after use?

Correct : A. To eliminate the possibility of contaminating the entire supply of rooting

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

Correct : B. To conserve propagation space.

84. What type of cutting does not become woody?

Correct : D. Herbaceous

85. Sodium hypochlorite is used:

Correct : D. To sterilize cutting tools.

86. Secondary dormancy is due to:

Correct : C. Light Requirement

87. Cutting most oftenly used in fruit plants are:

Correct : C. Semi hard wood cutting

88. Which of the following fertilizer carries 46% nitrogen

Correct : A. Urea

89. Red top is the variety of

Correct : A. Tomato

90. Alternate bearing in mangoes is due to

Correct : D. All of these

91. Windproof shelterbelts are

Correct : A. Very dense

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

Correct : A. Obstruction

93. Roses can successfully be cultivated at a temperature

Correct : B. 21°C

94. Tulip is an example of

Correct : B. Bulb

95. Ground cover includes of plants

Correct : D. All of these

96. Which of these shrub produce fragrant flowers

Correct : D. All of these

97. The danger signs of too little water are

Correct : D. All of these

98. For potting plants the pH should be_____

Correct : A. 5-6

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

Correct : A. Hybrid Tea

100. Chrysanthemums are propagated through

Correct : D. All of these