botany practical 3

Question 1

sustainable agriculture practices

Answer 1

1 - intercropping/crop rotation
2 - bio fertilizers - nitrogen fixing bacteria
3 - drop irrigation

Question 2

nitrogen fixing

Answer 2

rhizobia transforms atmospheric nitrogen to biologically usable compounds like NH3 (ammonia)

Question 3

what are bio fertilizers

Answer 3

RHIZOBIA

Question 4

3 part of cereals

Answer 4

culm
tiller
inflorescence

Question 5

culm

Answer 5

primary stem

Question 6

tiller

Answer 6

secondary stem (branches off)

Question 7

inflorescence

Answer 7

the little flowers that are attached

Question 8

examples of cereal family

Answer 8

corn rice wheat millet sugarcane

Question 9

root/stem crop examples

Answer 9

Potato, Cassava, Yam,
Sweet potato, taro, beet,
parsnip, carrot

Question 10

how to know if it is a stem or root

Answer 10

stem - has buds (like a potato)

roots has no buds - just tubes (like ginger)

Question 11

legume examples

Answer 11

soybean, chickpea, lentil, pea, bean, peanut, alfalfa

Question 12

legume roots

Answer 12

have rhizobia on it

Question 13

oil crop examples

Answer 13

canola, peanut, olive

Question 14

2 kinds of coffee

Answer 14

arabica and Robusta

Question 15

plant defence of coffee

Answer 15

precursor molecules
are bitter and toxic to many
plant predators.

Question 16

when is coffee toxic for humans

Answer 16

10,000 mg in a day