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AGR 2470 > exam (tropical crops) > Flashcards

exam (tropical crops) Flashcards

1
Q

parthenocarpy definition

A

when a fruit has no seeds, developed without fertilization ie bananas

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2
Q

corm definition

A

underground storage organ in a plant like a tuber or yam

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3
Q

rhizome definition

A

underground horizontal root the has many shoots

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4
Q

banana and plantain origin

A

E asia and aus

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5
Q

banana/ plantain herbaceous, shrub or tree?

A

herbaceous

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6
Q

banana/plantain monocot or eudicot

A

mono

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7
Q

age of banana/plantain tree at flowering?

A

2-6 months

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8
Q

time for a bunch to develop?

A

up to 2 months, plantaition can last 5 - 25 years

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9
Q

how are bananas bred?

A

vegetative propagation

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10
Q

diseases that impact banana/plantains

A 
Sigatoka diseases (yellow, black)
Panama disease
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11
Q

banana scientific name

A

musa

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12
Q

tea origin

A

before 2737 BC, china

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13
Q

cacao origin

A

1000 BC, S america

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14
Q

coffee origin

A

850 AD Ethiopia

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15
Q

cacao scientific name

A

theobroma cacao

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16
Q

cacao herbaceous, shrub or tree?

A

small tree

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17
Q

cacao monocot or eudicot

A

eudicot

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18
Q

cacao plant weather requirements

A

warm temps, reg rainfall, high humidity. 70% of production is within 8 degrees of the equator

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19
Q

cacao reproduction

A

propagated by seed or cuttings

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20
Q

cacao time to produce fruit

A

3 months to 5-6 months

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21
Q

cacao light requirements?

A

shade trees get tallest, full sun shorter. optimal photosynthesis at 25% light
usually understory crops, grown beneath shade trees like coconuts or legume trees that provide N for the choc

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22
Q

diseases threatening cacao

A

black pod, pod weevil

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23
Q

effect of climate change on choc

A

bad. varying price, farmers can’t be confident about price, will be less willing to invest into plantation

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24
Q

coffee types

A

arabica (common) robusta (less common)

25
Q

coffee scientific name

A

coffee arabica, coffee canephora

26
Q

coffee herbaceous, shrub or tree?

A

small tree

27
Q

coffee propagation

A

self fertile, no pollination needed.

28
Q

coffee monocot or eudicot

29
Q

coffee threat (disease)

A

coffee leaf rust

30
Q

tea scientific name

A

camellia sinensis var. sinensis or var. assamica

31
Q

tea herbaceous, shrub or tree?

A

bush like trees

32
Q

tea repro

A

mostly rooted cuttings but can be propagated from seed

33
Q

tea monocot or eudicot

34
Q

repro for cassava, sweet potatoes, yams, aroids

A

vegetative propagation

35
Q

cassava scientific name

A

manihot esculenta

36
Q

cassava monocot or eudicot

37
Q

sweet potato scientific name

A

ipomea batatas

38
Q

sweet potato monocot or eudicot

39
Q

yam scientific name

A

dioscorea spp. ie D. rotunda

40
Q

yam monocot or eudicot

41
Q

aroids scientific name

A

taro-colocusia esculenta

42
Q

aroids monocot or eudicot

43
Q

all root and tuber crops herbaceous, shrub or tree?

A

shrubs grown as an annual

44
Q

cassava origin

A

s america at least 2700 BC

45
Q

yam vs sweet poatoto

A

yam is much larger with bark like skin

46
Q

rubber scientific name

A

hevea brasiliensis

47
Q

rubber origin

A

s america, documented in Mexico 600 BCE

48
Q

rubber threats

A

leaf blight

49
Q

rubber propagation

A

vegetative propagation, cuttings grafted onto wood stocks

50
Q

rubber herbaceous, shrub or tree?

51
Q

cotton scientific name

A

Gossypium hirsutum

52
Q

cotton monocot or eudicot

53
Q

cotton origins

A

first evidence in India and Pakistan from 6000 BC

54
Q

cotton propogation

A

grown from seed

55
Q

cotton herbaceous, shrub or tree?

56
Q

cotton threats

A

boll weevil

57
Q

rice scientific name

A

Oryza sativus

58
Q

rice origin

A

china, been grown up to 13 000 years

AGR 2470 (3 decks)

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