Greener pastures are here! Recently eight new sub clover varieties have been released from Seed Force, and we’re excited to take a look. The new varieties cover all three sub-species of clover and will cater to different soil types and annual rainfall ranging from 325-1000mm. The new varieties also have improvements in seed yield, resistance to major pests and diseases, and – most importantly – higher forage yields and longer persistence.
Subterranean clover is native to the Mediterranean basin, (i.e. the western Atlantic coast of Europe and West Asia), making them well adapted to our area in southern Australia. They are an annual legume which will germinate in autumn and complete seed production in spring/early summer depending on the cultivar. They are reliable seed producers with most seed germinating the following autumn but with some remaining dormant to germinate in following seasons; this results in natural re-seeding even after poor seasons. Sub clover is high in energy and will provide good protein to meet all minimum livestock requirements. Plus, it’s a legume, meaning that it will also fix nitrogen throughout the season.
The different subspecies are all adapted to different soils and act a little differently. So, let’s take a look.
Firstly, ssp. subterraneum is suited to well-drained, moderately acid soils (pH Ca 4.5-6.5). There are four new varieties in this class that include seedling resistance to Red Legged Earth Mites.
The second species is ssp. yunninicum, which is also suited to moderately acid soils (pH Ca 4.5-6.5), however, is also well adapted to waterlogged or poorly drained soils and soils that hold their moisture.
Others: Monti – Napier
Finally, there is ssp. brachycalycinum. This type is best suited to well-drained, neutral- alkaline soils (pH Ca 6-8). The two new varieties in this species come with improved resistance to clover scorch and powdery mildew and suited to mid-late growing season lengths.
NEW: SF Tarlee – NEW SF Antillo
Others: Mawson – Mintaro – Lofty
Check out the graph below, showing what available varieties might be suited to your area. And if unsure, give us a call.