First frost date and late frost date

first frost date and latest frost date

Girst frost date and late frost date

onset date and end date

onset date and ending date

Additional conditions imposed

appendant displacement; externally imposed displacement

artificial imposed dust Preliminary layer

externally imposed displacement

imposed change

Imposed Displacement

imposed load

imposed or enforced dormancy

imposed periodicity

imposed rest

imposed stress

vertical imposed load

10℃ temperatures date

14C Date Data BASE

a heavy date