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.
Cabbage is a cool season crop that you can grow twice in a year. Some varieties of cabbage, such as Savoy, will take up to 88 days to form heads.If you are wondering when will cabbage make a head, you may simply need to wait longer or your plants may be stressed by improper culture or temperatures.abbage is a cool season crop that you can grow twice in a year. Some varieties of cabbage, such as Savoy, will take up to 88 days to form heads.