Variety traits
Trifolium subterraneum L.
A critical parameter for annual subterranean clover, which determines the plant's ability to complete its life cycle before the onset of summer drought. It is measured by the number of days to flowering or by growing degree-days, which is essential for ensuring successful seed production.
In the reference 3 varieties crop Subterranean clover, where this is mentioned in the description.
For subterranean clover, the indicators of flowering time and growth season duration are used instead of the general concept of a vegetation period. Plant development is highly dependent on temperature and photoperiod; therefore, using growing degree-days to assess developmental phases is more accurate than calculating calendar days, which range from 80 to over 170 days for different cultivars.
The selection of a cultivar based on the duration of the vegetation period determines the crop's survival in a particular region. In arid zones, early-maturing cultivars are mandatory, as they must form seeds before moisture is depleted, whereas in areas with a prolonged spring, late-maturing cultivars are preferred to ensure maximum biomass yield.
Since the life cycle of an annual ends with seed formation, a mismatch between the cultivar and the season length leads to the loss of the stand in subsequent years. The practice of mixing cultivars with different maturity dates is used as a risk management strategy and a means to extend the period of forage availability depending on the season's weather conditions.
General information about the subject — on the page Vegetation period.
Selection based on the description text, not on official evaluation: these data are absent from registers. For specific variety details, please refer to its profile.
Trifolium subterraneum L. · Subterranean clover
Seed Technology & Marketing Pty Ltd
Trifolium subterraneum L. · Subterranean clover
NEW SOUTH WALES, DEP.AGR.
Trifolium subterraneum L. · Subterranean clover
NEW SOUTH WALES, DEP.AGR.