Crown gall causes stunting of growth. Both loss of yield and stunting of growth may occur when seedlings or young cuttings are infected in the early stages of plant growth. The lack of vigor, reduction in foliage, and water stress are associated with chronically diseased root systems.
1. In probability theory, a probability density function (pdf), or density of a continuous random variable, is a function that describes the relative likelihood for this random variable to take on a given value.
1. (Statistics) statistics the function of the distribution of a sample corresponding to the probability density function of the underlying population and tending to it as the sample size increases, the set of relative frequencies of sample points falling within given intervals of the range of the random variable. n.