An important Cucurbita , in this ppt its complete seed production technology was given , but sowing periods were different from place to place ,so its mainly accordingly in Maharashtra .I hope it may useful to some one , thank you.

1. WELCOME
Presented by :- SATTARU.DILEEP ( reg:- 2017AGAL56)
:- G.UDAY SWAROOP ( reg :- 2017AGAL58)

2. SEED PRODUCTION TECHNOLOGY
OF
BITTER GOURD

3. CONTENTS :-
• LAND REQUIREMENT
• ISOLATION REQUIRED
• TIME OF SOWING
• SEED RATE
• SEED TREATMENT
• MANURING
• IRRIGATION
• ROUGHING
• HARVESTING
• PROCESSING
• SEED YIELD

4. LAND REQUIREMENT:
The selected land should be free of volunteer plants .
Generally the soil should be well-drained and aerated.
The field selected for seed production must not have been sown
with bitter gourd in the previous season.

5. ISOLATION REQUIRED TO AVOID GENETIC
CONTAMINATION:-
The quality seed must be genetically and physically pure .
Genetic purity can be maintained by preventing cross
pollination with undesirable varieties. This is achieved by
isolating the seed crop.
Bitter gourd is highly cross pollinated crop , flower is
monoecious in nature . Hence it require 500 m (1500 feet )
away from another variety of bitter gourd.

6. - The seeds are sown either on one side or both
sides of the channels .
- In case of early sowing ,sprouted seeds are sown
on ridges .
- Two to three seeds may be sown on each hill and
subsequently thinned out.

7. - The seed is sown by dibbling method at a spacing of
120 x 90 cm .
- Generally 3 to 4 seeds are sown in a pit at 2.5 to 3.0 cm
depth.
- The seeds are soaked in the water for over night before
sowing for better germination .
- In flat bed layout seeds are dibbled at the spacing 1x1 m

8. TIME OF SOWING AND SEED RATE : -
• The seed is sown from January to march for
summer season crop .
• June –July for rainy season crop in the plains .
• March-June in the hills .
• SEED RATE :- 4 to 5 kg/ha.

9. SEED TREATMENT :-
 Prior to storage , seeds are treated with fungicide
to reduce fungal pathogens attack . Seeds are
mixed with Carbendazim 4g/kg .

10. MANURING / FERTILISER APPLICATION :-
25-50 tonnes of farmyard manure at the time of field
preparation is supplied .
A mixture of 125 kg ammonium sulphate and CAN -
CALCIUM AMMONIUM NITRATE , 300 kg superphosphate,100
kg sulphate of potash should be mixed at 500 gm per pit ,
while preparing the pit for sowing.
Top dress 125 kg ammonium sulphate or calcium nitrate at
the time of flowering .

11. IRRIGATION & INTERCULTURING:-
The number of irrigation depends upon the number of rain
fall days.
Crop normally require irrigation about 8-10 days .
Beds should be kept free of weeds , especially in the early
stages.
Later on , rapidly spreading vines supress the weeds.

12. ROGUING :-
Roguing refers to the act of identifying and removing plants
with undesirable characteristics from agricultural fields.
Rogues are removed from the fields to preserve the quality
of the crop being grown.
Roguing is more effective if done prior to flowering.

13. • Roguing during vegetative phase :-
During vegetative phase, first 30-35 days rouging is attempted
based on plant characters like height of plant, leaf shape, size.
• Roguing during fruit formation phase:-
At this phase, the rogues are removed based on fruit characteristics
like length of fruit, size, shape .
• Roguing during fruit harvest phase :-
Roguing is done prior to harvest based on fruit colour and pests and
diseases infection.

14. HARVESTING AND EXTRACTION OF SEED:-
The seed crop is reedy for harvest when the
fruits have turned pale yellow or gold .
• Fruits selected to extract seed

15. Optimum stage of harvest Damage caused due to
delayed harvest

16. Separation of seeds
Split open the fruits longitudinally and collect the seeds along with
pulp. Crush the pulp with hands and wash with excess quantity of
water to remove the pulp. The extracted seeds are to be dried
properly.

17. Seed cleaning and processing
After proper drying
seeds have to be
processed. By removing
the ill filled and small
size seeds, vigour and
viability are improved.
Good quality seeds Ill filled seeds

18. Seed yield
 Average seed yield various from 200 to 300 kg/ha.

19. THANK YOU