High yield & disease tolerance
Invitation produces excellent total DM yields with good dry rot tolerance and resistance to club root and powdery mildew. Invitation is not recommended as a second crop.
Total DM yield, dry rot tolerance and club root infection level.
*From 8 Southland trials, from 2006/07 to 2011/13. **From a Southland trial in 2008/09 under moderate to high dry rot pressure in a 2nd crop paddock. *** From a Southland trial in 2010/11 under moderate to high club root pressure in a 2nd crop paddock. NT = Not tested. Statistical significance lettering given for 5% LSD level, cultivars with same letter are not significantly different.= Provisional results. Domain was in 2 of the 8 trials.
Invitation is very late flowering, so the crop stays vegetative longer into spring than other cultivars. This minimises the chance of animal health problems associated with 'bolting' swede crops, as seen in spring 2014 in Southland. No issues were reported on Invitation swedes.
Swede flowering scores*
*Results from 2 trials in Southland sown 2008 and 2012. Statistical significance lettering given for 5% LSD level, cultivars with the same letter are not significantly different. Scored on a 1 - 9 basis. Where 1 = full flowering swede crop, 4 = stem elongation, green seed head appeared, 7, small degree of elongaton, 9 = no sign of stem elongation.
Good leaf yield
Invitation produces high leaf yields showing a significantly higher leaf percentage than other cultivars in trials. This lifts the overall protein level of the crop and is helpful when introducing swedes into an animal's diet, particularly for younger stock.
Bulb & leaf keeping
Invitation has shown high bulb keeping ability and leaf retention in trials, helping maintain its feed quality and quantity through to the end of winter.
Invitation swede is now available pelleted, to sow through a precision planter. This can increase DM yield by 10-15%, sometimes more, through equally spacing seed, giving every plant room to better reach its potential.
Where a 14 t DM/ha crop is expected, that adds up to an extra 1.4 t – 2.1 t DM/ha, with a conservative value of $490-735/ha (based on $0.35/kg DM).
Invitation swede is marketed by Barenbrug