What is 'Covariance'. Covariance is a measure of the degree to which returns on two risky assets move in tandem. A positive covariance means that asset returns move together, while a negative covariance means returns move inversely.
23 September 2016. The heaviest red cabbage weighs 23.2 kg (51.15 lb) and was grown by David Thomas (UK), as verified at the UK National Giant Vegetables Championship in Malvern, UK, on 23 September 2016. David also holds the current record for Heaviest parsnip and Heaviest cucumber.
The number of days indicates the time it takes for a mature cabbage head to form under ideal conditions. For example, the variety called Cheers takes 75 days to mature while another green cabbage called Early Jersey Wakefield is ready for harvest about 63 days after planting.