Seed
Dormancy:
Main problem has been potato where freshly harvested tubers fail to
sprout before the termination of rest period.
Ø Chemical which have been reported to
break the rest period are GA, ethylene
cholorhydrin and thiourea.
Ø The treatment which has been used for
breaking of dormancy in potato comprise the vapour treatment with ethylene
chlorhydrin ( 1 liter per 20 q) followed by dipping in thiourea (1% sol.) for
1h finally in GA (1 mg/l) for 2 seconds.
Ø Lettuce is another vegetable in which
treatment with GA has been reported to break seed dormancy induced by high
temperatures
Comments
Post a Comment