The phrase "a range of variety" is not correct and is somewhat redundant in written English.
You can use it when trying to express diversity or multiple options, but it would be clearer to choose one term.
Example: "The store offers a range of products, catering to a variety of customer needs."
Alternatives: "a variety of options" or "a range of choices."
Unlike formal research, which looks for seed varieties that can work across different climates and soil types, farmers are constantly selecting for diversity, conserving a range of varieties and choosing them not just for their yields but also for their taste or because they are particularly resistant to disease or drought.
Border carnations include a range of varieties and hybrids, 30 to 75 cm (1 to 2.5 feet) tall; the flowers, in a wide range of colours, are usually less than 5 cm (2 inches) in diameter and are borne on wiry, stiffly erect stems.
They come in a range of varieties for use in any kind of cuisine, from Chinese to Italian to Mexican.
In the present study a range of varieties of each cereal species was used.
Similar results were obtained for a range of varieties by Zhu, Cai, Ke, and Corke (2010).
This is possible since many of the EST libraries made so far for common bean represent a range of varieties from Andean snap beans (Early Gallatin) to Mesoamerican dry beans (Negro Jamapa).
Frey (9/11) suggested that it was unsure whether a range of varieties would be genetically modified but that it was more likely that the Golden Rice variety would be simply crossed with the local adapted varieties and that, by backcrossing, the unique genes of Golden Rice would be retained while eliminating most of the foreign genome.
Your florist will be able to suggest a range of varieties to make up your bouquet.
And just like the wines of Virginia, Texas is a state whose grape-growing and winemaking potential span a range of grape varieties and styles.
However, an allelic variant of the SUB1A gene exists, SUB1A-2, whish is present in a range of rice varieties (Fukao et al., 2006; Singh et al., 2010).
