Passion fruit

Question 1

Family

Nutritiional value

Answer 1

Passifloraceace
provitamin A
Niacin(vit-B3)
Riboflavin(Vit B2)
Ascorbic acid(Vit C)

Question 2

Botany
Characteristics
Vines

Answer 2

Herbbaceous or woody vine with auxiliary tendril

Vigorous perennial, medium to large toothed leaves.

Question 3

Flowers

Answer 3

Solitary showy flower.
Tubular calyx tube, 
Surrounded by a thread-like crown in the center.
Three horizontal styles.
Five sepals, 
5 white petals, 
Five stamen 
Stamen unite into a elongated stalk bearing the ovary

Question 4

difference between the druits pollinated by hand and natural pollination?
Most effective time for pollination is after the styles have completely………………

Answer 4

Fruit set is about
 70% by natural pollination
 100% by hand pollination.
Hand-pollinated fruit are larger, heavier and higher in juice content
2.recurved

Question 5

Growth and development

Altitude

Answer 5

After 4-10 flowers have set fruit further setting ceases. flowers buds are produced on new growth. Fruit set resumes when previous fruit matures
grows well in cooler regions from elevations 800-1500 m

Question 6

Difference between purple and yellow passion fruit

Answer 6

purple passion fruit economic life time is 3-4 years
elevation of 800 masl
it has green tendrils
Purple passion-fruit can be kept for up to 4-5 weeks at 5oC and 80-90% humidity.

yellow passion fruit

economic life time is 8 years
altittude is 1200-1500m
Yellow-can only be stored for 1 week at
5- 7.5oC.

Question 7

Climate

Answer 7

purple
18-30 degree celsius at day
4.5-13 at night
matures vines withstands light frost
injured at minus 1-2 degree celsius
yellow
shows more vigor
wider ecological adaptibility than purple

Question 8

Rainfall & Soil

Answer 8

A well distributed rainfall is needed.
Tolerates a wide range of soil types.
Vines are susceptible to poor drainage & water logging.
Soil pH may range from 5.5-5.8

Question 9

Propagation

Answer 9

Propagated from seeds, cuttings, air layering or grafting onto seedling rootstock.
Growers plant selected seeds or use purple passion-fruit vines grafted on to Fusariun-resistant lines of the yellow passion-fruit.

Question 10

Seeds

Answer 10

Wash, shade dry, sow or store at 10-13oC.
Give better than 85% germination if stored
for 3mths at room temperature

Seeds germinate in 2 weeks

Question 11

Transplanting and spacing

Answer 11

transplant at 2-4 leaf stages into plastic bags
grow in semi shade for 1-2 months
gradually expose the plants to sun for 1-2 months
field transplant at 25-50 cm
warm areas- starrt with 2.5m
afeter harvest thin every vines at permanent spacing of 5m

Question 12

Trellis selection

Answer 12

Most commonly used trellises are the;
‘Grape trellis’ / ‘fence’ trellis
‘T trellis’ / ‘Cross’ trellis.

Question 13

Pruning

Answer 13

1. Light selective prune (end of the production cycle)
2. Remove all vines that reach the ground.
3. Don’t throw long vines over the trellis.
4. Vines entangled on the top may be removed,
5. Leave pruned vines to dry in place.

Question 14

Diseases

Answer 14

Alternaria brow spots
Purple- Fusarium.
Purple- Phytophthora blight. 
Passion-fruit woodness virus (PWV). 
Almost universal, aphid transmitted (Myzus persicae).

Question 15

Post-harvest treatment

Answer 15

Purple passion-fruit can be kept for up to 4-5 weeks at 5oC and 80-90% humidity.
Yellow-can only be stored for 1 week at
5- 7.5oC.
Ethylene can be used to enhance skin-colour without affecting soluble solids or juice ph.