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Science > Improvement in Food Resources > Flashcards

Improvement in Food Resources Flashcards

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Biology 101 flashcards
1
Q

Crop Variety Improvement - Two ways

A

1. Hybridisation

  • Intervarietal
  • Interspecific
  • Intergeneric

2. Genetic Engineering

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2
Q

Hybridisation

A

Cross breeding between genetically dissimilar plants with suitable traits.

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3
Q

Genetic Engineering

A

Introducing a gene that provides desired characteristic.

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4
Q

Variety Improvement - Factors

[ Mention the 6 factors ]

A
  • Higher Yields
  • Improved Quality
  • Biotic & Abiotic resistance
  • Change in maturity duration
  • Wider adaptability
  • Desirable agronomic characteristics
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5
Q

Manure - Types

[ Based on biological material used ]

A
  • Compost - Decomposed farm waste.
  • Green Manure - Mulching of sun hemp.
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6
Q

Irrigation - Types

A
  • Dug wells
  • Tube wells
  • Canals
  • River lift system
  • Tanks
  • Check dams
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7
Q

Cropping Patterns - Types

A
  • Mixed Cropping
  • Inter-Cropping
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8
Q

Mixed Cropping

A

Growing two or more crops simultaneously on same land.

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9
Q

Crop Rotation

A

Growing different crops on a piece of land in pre-planned successions.

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10
Q

Name few Weeds

A

Xanthium, Parthenium

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11
Q

How do pests attack plants?

A
  • Cut the root, stem, leaves.
  • Suck the cell sap.
  • Bore into stem and fruits
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12
Q

Indian cow - Scientific Name

A

Bos indicus

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13
Q

Indian buffalo - Scientific Name

A

Bos bubalis

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14
Q

Foreign / Exotic breed cows

A

Jersey, Brown Swiss

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15
Q

Indian breed cows

A

Red Sindhi, Sahiwal

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16
Q

Surface Feeders

A

Catlas

17
Q

Middle - Zone Feeders

A

Rohus

18
Q

Bottom Feeders

A

Common Carp, Mrigal

19
Q

Weed Feeders

A

Grass Carp

20
Q

Composite fish culture - Demerits

A
  • Breed only in Monsoon
  • Lack of good quality fish seeds
21
Q

Composite fish culture - Define

A

Culturing of 5-6 types of fish in one pond depending on feeding habits.

22
Q

Indian Bee - Scientific Name

A

Apis cerana indica

23
Q

Rock Bee - Scientific Name

A

Apis dorsata

24
Q

Little Bee - Scientific Name

A

Apis florae

25
Q

Italian Bee - Scientific Name

A

Apis mellifera

Science (10 decks)

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