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Crop Science
  • Sweet Candy

  • 問題数 100 • 10/31/2023

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    問題一覧

  • 1

    In the philippines self sufficiency rice is...

    had been achieved before

  • 2

    Corn production in the Philippines is:

    manily used for animals feed manufacturing

  • 3

    High population growth rate could possibly mean:

    More people in urban area and greater demand for agricultural produce

  • 4

    Greater population with low productivity could lead to:

    General poverty among the people

  • 5

    Urbanization and industrialization always results into:

    Migration of rural production

  • 6

    Coconut industry should not be a dying industry, it should be maintained and improved, because

    it earns substantial dollar returns as an export crop

  • 7

    Modern crop agriculture would require:

    knowledge of all kinds and from all sources

  • 8

    The group of fertilizers used in integrated nutrient management which provides the long term requirement of the plants because the nutrients are slowly released.

    organic fertilizer

  • 9

    A management system utilizing a suitable technique to maintain the pest population at levels below those causing economic injury.

    integrated pest management

  • 10

    A principle of sustainable agriculture requiring no loss of farm animals as a result of over mechanization, and the various agricultural projects should minimize dependence on foreign loans

    economically viable

  • 11

    A principle of sustainable agriculture which requires that farming practices must focus on minimizing negative environmental impacts.

    ecologically sound

  • 12

    Biological diversity is the total variability within all the living organisms and the ecological complexes they inhabit. Which of the following is not a level of biodiversity?

    Human interference

  • 13

    It is defined as the spatial and temporal combination of crops in a given area and the management used to produce them

    Cropping pattern

  • 14

    It is growing of two crops in rapid sequence or succession, planting one after the harvest of the former.

    Sequential cropping

  • 15

    Biological diversity includes the following except

    soil

  • 16

    It is the successful management of the elements resources of agriculture to satisfy changing human and development needs while maintaining the natural resource base and avoiding environmental degradation

    Sustainable agriculture

  • 17

    The totality of genes, species, and ecosystems in a region

    biodiversity

  • 18

    The variation of genes within species or among crop cultivars

    Genetic diversity

  • 19

    An element of sustainable agriculture referring to farming policies and practices that respect the dignity and rights of individual.

    Socially just

  • 20

    A sequential cropping involving the cultivation of regrowth from the cut stalks of the previous crops

    Ratoon cropping

  • 21

    To avoid confusion in international conferences, crops are identified using their:

    Scientific names

  • 22

    The scientific name of "saging" or banana

    Musa sapientum

  • 23

    The family of crops belonging to the grass family belongs to the:

    Graminae

  • 24

    The scientific name of rice is:

    Oryza sativa L.

  • 25

    Global warming is due to the depletion of the:

    ozone layer

  • 26

    Which of the following practices are sustainable

    All of the above

  • 27

    The multiple cropping technology is quite difficult for farmers to adopt because of:

    All of the above

  • 28

    Which of the following is an optional requirement for seed germination?

    Light

  • 29

    Direction of tillage on rolling or hilly fields:

    Follow the general contour of the land

  • 30

    The lack of rain during the El Niño episodes is an example of

    Contingent drought

  • 31

    A woody plant that needs a support to be able to stand upright is an example of:

    Liana

  • 32

    If benefits from the farm, resources and power are distributed evenly so that the basic needs of all members of the society are met, agriculture is:

    Socially just and equitable

  • 33

    Which of the crops listed below requires more frequent irrigation?

    Onion

  • 34

    Plants with vegetable shoots that continue to grow until the plants senesce are:

    Indeterminate plants

  • 35

    The technology recommended in hilly land or sloping land is

    Sloping agricultural land technology

  • 36

    The most suitable material for germination test of very small seeds is:

    Petri dish lined with filter paper

  • 37

    Although many farmers are using improved technologies, few farmers are following the recommendation made by researchers and extension workers in their entirety because:

    Recommended technologies are not appropriate to their condition

  • 38

    This is the tillage system in which soil disturbance is reduced and some crop residues remain on the soil surface after operation.

    Conservation tillage

  • 39

    Senescence can be delayed by:

    All of the above

  • 40

    Which are the advantages of conservation tillage over Conventional tillage?

    Water conservation and reduced erosion

  • 41

    The multiple cropping index is generally higher with:

    Small farm size

  • 42

    A major strategy in sustainable agriculture is to restore agricultural diversity in time and space through:

    All of the above

  • 43

    Propagation that preserves the characteristics of the parent plant is:

    Asexual propagation

  • 44

    This consists of actively dividing non-organized tissues of undifferentiated cells often developing from injury (wounding) or tissue culture

    Callus

  • 45

    This is the holistic system of agriculture started by Rudolf Steiner that aims to connect nature and cosmic forces (“formative life energies”) to farming. Its followers believe that heavenly bodies (stars, etc.) influence the growth and development of plants

    Bio-dynamic farming

  • 46

    For rapid rate of multiplication, the method of propagation generally practice is:

    Micropropagation

  • 47

    LEISA is a farming practice or philosophy in which most of the inputs used originate from the farm. Deliberate action is taken to ensure sustainability. However, it is open for a combination of organic and inorganic fertilizers. LEISA means:

    Low-external-input and sustainable agriculture

  • 48

    It is considered as the mature or ripened ovary

    Fruit

  • 49

    It is the mature or ripened ovule

    seed

  • 50

    The scientific name of horse raddish tree is

    Moringa oleifera

  • 51

    'Loren B. Legarda' is one of the hybrids of

    Gumamela

  • 52

    Which of the following is mot a major part of the seed embryo?

    seedcoat

  • 53

    A portion of the axis of a plant embryo or seedling above the cotyledonary node which determines kind of germination that a seed will have:

    epicotyl

  • 54

    The deteriorative process that ends the functional life of an organ or organism is

    senescences

  • 55

    An aquatic fern growing in association with nitrogen fixing blue-green algae

    azolla

  • 56

    A group of fertilizers of microbial origin

    biofertilizers

  • 57

    The association between plant roots and fungi which promotes absorption of nutrients by plants

    micorrhiza

  • 58

    Strictly speaking, it refers to a plant grown anywhere outside its natural range

    exotic

  • 59

    The enlarged fleshy underground part of the following crops are generally classified as stems except

    cassava

  • 60

    Mitosis and meiosis always differ in regard to the presence of

    chromatids

  • 61

    The process of removing excess of water from the soil is

    drainage

  • 62

    Land preparation should be started at least 15 days before planting to

    kill the weeds

  • 63

    A class of seed whose life span is prolonged with low seed moisture and temperature. They are called “drying – tolerant “ seeds

    orthodox seeds

  • 64

    It is the result of the union of male and female gametes which results in the formation of seeds and the creation of individuals with new genotype. This usually results in the increased vigor of growth of a hybrid progeny in relation to the average of the parent known as:

    heterosis

  • 65

    Seed germination is affected by light quality as mediated by a phyto-chrome system. The kind of light that acts as an enzyme which initiates germination is:

    red light

  • 66

    It is a product of two parents and thus, new seeds must always be produced for planting the next season through cross-pollination.

    hybrid rice

  • 67

    Plants that could not withdstand chilling or low temperature

    tropical crops

  • 68

    The amount of irrigation water to apply is not affected by

    season

  • 69

    The ancient Japanese art of dwarfing trees

    bonsai

  • 70

    The following are the major features of perishable crops except

    annual crop

  • 71

    Fruit which develops from a flower with a single pistil

    simple

  • 72

    Fruit which develops from a flower with many separate ovaries

    aggregate

  • 73

    Fruit which develops from an inflorescence

    multiple

  • 74

    The growing of plants in aerated water containing all the essential mineral nutrients

    hydrophonics

  • 75

    The atmospheric environment in which organisms live is termed as

    microclimate

  • 76

    It is a class of seeds intended for farmers’ use after several tests and selections since they do not segregate anymore

    Certified seeds

  • 77

    Microgametogenesis is a reproductive process in plants which results in the production of

    pollen grains

  • 78

    The White or Irish potato tuber is considered a stem because

    it has nodes and internodes

  • 79

    It is considered as the "cradle of civilization"

    Southwestern Asia

  • 80

    The largest producer of banana

    Southern Mindanao

  • 81

    The largest regional producer of tomato

    Ilocos Region

  • 82

    A fruit that is soft and fleshy throughout and usually has many seeds

    berry

  • 83

    A dry fruit that splits along mang sides or pores

    capsule

  • 84

    A single-seeded fruit where seed is attached to the fruit wall at the base only

    achene

  • 85

    Aubergine is another uncommon name for

    Solanum melongena

  • 86

    The following are examples of qualitative traits, except

    height

  • 87

    Plants that require short darkness to flower are

    long day plants

  • 88

    Plants that require long darkness to flowers are

    short day plants

  • 89

    Gumbi, Gombo, and Gobo are another names for

    lady's finger

  • 90

    The following are the main categories of pruning trees except

    heavy prunning

  • 91

    The competition among different parts of a plant for water, nutrients, light and others is known as

    interplant competition

  • 92

    The stage in the life cycle of a seed when development is complete and the biological component necessary for all the physiological processes are active or ready to be achieved

    physiological maturity

  • 93

    The primary factor to consider in determining the kind of feetilizer to apply is

    the nutrient element found

  • 94

    The dry dehiscent fruit of peanut is classified as

    legume or pod

  • 95

    In a cron embryo, the embryonic shoot is enclosed by a sheath called the

    coleoptile

  • 96

    The usual solution to waterlogged condition are the following, except

    providing crop with trellis

  • 97

    Crops that could be propagated by crown, suckers and slips

    pineapple

  • 98

    The basic unit of plant classification is the

    species

  • 99

    Dicots are flowering plants having the following characteristics, except

    flower parts in 3's or their multiples

  • 100

    The following are salient characteristics of a juvenile plant, except

    morphological characteristics entirely different from that of an adult