7/28/2019 Seed Production in Cucurbitaceous Crops
2/2
sprayings with insecticides and fungicides should be done to
control the insect pests and
diseases. Plants affected by virus should be removed regularly.
Three weedings should be
done, first before flowering, second at the time of flowering
and third at the time of
fruiting .Seeds are removed after cutting the fruits. The seeds
should be washed
immediately by clean water and dried properly.
RIDGE GOURD:
It is a cross pollinated crop and requires 400 and 800 meters
isolation distance for
certified and foundation seed production respectively. Off type
plants should be
removed, first before flowering, second at the time of flowering
and finally at the time of
fruiting. Heavy rouging should be done before and at the time of
flowering. Control
measures against insect pests and diseases should be adopted.
When the colour of fruitturn brown, they should be harvested and
kept in sun light for about a week for complete
drying. Seed can be extracted very easily only by removing the
tip of fruits. About 3 to 5
quintals of seed is obtained from one hectare.
ASH GOURD:
It is cross pollinated crop. Anthesis takes place between
5.45a.m. And 7.15 a.m.,
dehiscence starts from 3.15a.m. Stigma remains receptive 12
hours before and 36 hours
after anthesis. The staminate and pistillate flowers open at the
same time. About 800
meters isolation distance is required for foundation and
certified seed production
respectively. Rouging should be continued till harvesting and at
last time rouging should
be done, first before flowering , second at the time of
flowering and third at the time of
harvesting. Ripened fruits are harvested and seeds are taken out
from the fruits. Seeds arewashed, dried and stored at cool and dry
place.
[email protected]
24th November 2011
mailto:[email protected]:[email protected]
