Agriculture Mcqs

HORTICULTURE MCQS

Part 1

20. controlled inhibition of seed is termed as:

a         Priming

b         Soaking

c         Chilling

d         None of above

21.  Celery and lettuce at high temperature become

a         Photo dormant

b         Thermo dormant

c         Ecodormant

d         Non dormant

22.  Excessive soil moisture, late in the season cause

a         Decrease in TSS decrease in dry matter

b         Increase in TSS decrease in dry matter

c         Decrease in TSS increase in dry matter

d         None of above

23.  Most of following category crops are shallow rooted

a         Summer

b         Winter

c         Off season

d         All of above

24.  Deep rooted vegetables require:

a         Less frequent irrigation

b         More water at each irrigation

c         Both a & b

d         None of above

25.  Fruit of following vegetables is edible:

a         Summer

b         Winter

c         Cruciferous

d         All of above

26.  Mulches are mainly used to reduce

a         Transpiration

b         Evaporation

c         Evapotranspiration

d         All of above

       

27.  What type of mulches reduce soil temperature?

a         Organic mulch

b         Gray polythene

c         Black polythene

d         Transparent polythene

28.  For hybrid seed production _______ flowers are completely suppressed on female plants.

a         Staminate

b         Pistillate

c         Staminode

d         Alternate

29.  Recommended cucumber cultivars under tunnel production technology are:

a         Monoecious

b         Gynoecious

c         Andromonoecious

d         Gynomonoecious

30.  Flowering in water melon is unaffected by light duration as it is:

a         Short day long night plant

b         Long day short night plant

c         Day neutral plant

d         None of the above

31.  Nature of pollination in cucurbits is:

a         Highly cross pollinated

b         Oftenly cross pollinated

c         Highly self pollinated

d         None of above

32.  Ginger is commonly cultivated as:

a         Annual

b         Biennial

c         Perennial

d         Biannual

33.  Cross pollination is essential in following type of vegetables

a         Monoecious

b         Dioecious

c         Gynoecious

d         Perigynous

34.  Cross pollination in plants bearing bisexual flowers is due to

a         Dichogamy

b         Herkogamy

c         Heterostyly

d         All of above

35.  In anemophilous plants, pollens are disseminated by means of:

a         Insects

b         Water

c         Wind

d         Gravity

36.  In pollen development Gametocytes induces a problem of:

a         Sterility

b         Viability

c         Fertility

d         Mobility

37.  Production of seeds without fertilization is termed as:

a         Parthenocarpy

b         Parthenogenesis

c         Gametogenesis

d         All of above

38.  Most of the hybrid watermelon and cucumber are:

a         Triproid

b         Diploids

c         Aneuploids

d         Colchiploids

39.  Removal of off type plants from a seed field is termed as:

a         Weeding

b         Rouging

c         Hoeing

d         All of above

40.  The most important seed component affecting seed /viability during storage is:

a         Temperature

b         Humidity

c         Moisture

d         Food reserves

41.  Potato is generally propagated through

a         Seed potato

b         Potato seed

c         True Potato Seed

d         All of above

42.  Isolation during seed production is done by:

a         Types (Varieties)

b         Plantation at a distance

c         Zoning

d         All of above

43.  The most common pollinator insect in Pakistan is

a         Syrphid fly

b         Bumble bees

c         Honey bees

d         House fly

44.  Seed production in biennial vegetables is mostly done by:

a         Seed to seed method

b         In situ method

c         Replanting method

d         All of above

45.  Male sterility is not due to

a         Genetic factor

b         Genome factor

c         Cytogenetic factor

d         Nutritional factor

46.  Hybrid vigor in vegetables is manifested by

a         High yield

b         Uniformity in size

c         Uniformityin maturity

d         All of above

47.  Water melon for seed should be harvested when

a         Tendrils wither

b         Skin color is green

c         Skin color is pale yellow

d         Vines dry out

48.  In Pakistan, vegetables for seed production are harvested by:

a         Manual method

b         Machines

c         Combine harvesters

d         All of above

49.  During storage of vegetable seeds, seed moisture should be

a         Equal to 10%

b         Greater than 10%

c         None of above

50.  The poorest seed storage capacity is in:    

a         Okra

b         Peas

c         Cucurbits

d         Onion

51   Nitrates are absorbed at pH below ___:

a         5

b         6

c         7

d         8

52.  Hormones which control apical dominance are:

a         Auxins

b         Cytokinins

c         Gibberellins

d         Polyamines

53.  Tetraploid watermelon must be pollinated by ____ plants to produce a seedless watermelon

a         Triploid

b         Aneuploid

c         Diploid

d         Tetraploid

54.  Which vegetable cannot be grown as an off season vegetable:

a         Tomato

b         Potato

c         Chillies

d         Cucumber

55.  Lower temperature than normal convert male flowers into perfect flowers in ________:

a         Date palm

b         Mango

c         Papaya

d         Citrus

56.  Tomato is a _________ crop.

a         Self pollinated

b         Insect pollinated

c         Oftenly cross pollinated

d         Wind pollinated

57.  Turmeric is propagated by:

a         Corms

b         Seed

c         Rhizome

d         Bulb

58.  Sweet potato is propagated by:

a         Stem cuttings

b         Tubers

c         Roots

d         a & b

59.  Self pollination is a form of:

a         Inbreeding

b         Out breeding

c         Random mating

d         None of these

60.  Cross pollination is associated with:

a         Cleistogamy

b         Chasmogamy

c         Dichogamy

d         Apogamy

61.  Completion of pollination and fertilization in unopened flower bud is termed as

a         Chasmogamy

b         Apogamy