Lecture 9 - Grain Legumes Flashcards

(41 cards)

1
Q

legume family name

A

fabaceae

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2
Q

types of legumes

A

forages, pulses, grain, oil seeds, vegetables

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3
Q

why eat legumes

A

high protein, complex carbohydrate, source of iron zinc, vit b, folic acid, soluble fiber, gluten free
proteins are complementary to cereals (high in lysine)
low in sulfur containing amino acids

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4
Q

legume cereal ratio

A

3 cereal: 1 legume

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5
Q

common bean scientific name

A

phaseolus vulgaris L

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6
Q

are common beans self pollinated

A

yes

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7
Q

dry beans vs snap beans

A

dry beans = cultivated for mature seed
snap beans = selected for succulent, fiber free pods eaten at immature stage

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8
Q

2 centers of domestication for beans

A

Andean ( large seeded)
Mesoamerican: small and medium seeded

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9
Q

where is bean production primarily in Africa

A

highland areas or places with more moderate climate and higher rainfall

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10
Q

what beans types are most common in Africa

A

large seeded andean bush intercropped with corn

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11
Q

major pest of bean

A

bean fly

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12
Q

bean production constraints in the tropics

A

diverse environments
greater # of pests and disease
more problems with abiotic stress (heat, drought)
lack of infastructure

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13
Q

where is pigeon pea native to

A

Africa

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14
Q

what place grows 95% of worlds pigeon pea crop

A

india

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15
Q

pigeon pea is a major source of _____ to about 20% of world population

A

protein

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16
Q

______ is the most versatile legume with diversified uses such as food, feed, fodder, and fuel

A

pigeon pea

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17
Q

2 plant types of pigeon pea

A

dwarf and normal

18
Q

constraints to growing pigeon pea

A

no availability of quality seed or improved varieties
low harvest index
long crop duration
pests
poor agronomic practices

19
Q

what was the world first hybrid legume

A

hybrid pigeon pea

20
Q

benefits of hybrid pigeon pea

A

160-180 days maturity, high yield, disease resistant, high seed quality

21
Q

peanut (groundnut) scientific name

A

Arachis hypogaea

22
Q

_____ is the 4th world leading oilseed crop after oil palm, soybean, and rapeseed

23
Q

what area produces the most peanuts

24
Q

origin of peanut

A

near Bolivia, Uruguay, and Paraguay

25
where are peanuts native to
south america
26
2 subspecies of peanuts
hypogea and fasigiata
27
hypogea peanuts
dont flower on main stem alternate branching larger seed mature later high water requirement
28
fastigiata peanuts
produce flowers on main stem sequential branching smaller seed mature earlier lower water requirement
29
T/f: peanuts are perennial
f, they are annual
30
types of peanut varieties
bunch and runner
31
bunch peanut type
closely clustered nuts around base of plant
32
runner peanut type
nuts scattered along prostrate branches from base to tip
33
peanuts are ______ pollinated
self
34
what part of the flower in peanuts elongates to push peg into ground
the pedicel
35
peg
fertilized peanut ovary
36
factors affecting peanut maturity
weather, pest pressure, and fertility
37
what is the critical water stage for peanuts
40-110 days after planting. Cannot experience stress in last 30 days
38
how to determine when peanuts are ready to harvest
hull-scrape maturity test - based on color of mesocarp where the exocarp is removed and color changes from lighter to darker
39
when are peanut plants dug
when 70% of shells turn brown inside and peanuts are 25-50% dry
40
how dry should peanuts be for storage
less than 10%
41
Disease in peanuts
aflatoxin