1. A change in the chemistry of a gene that is perpetuated in subsequent divisions of the cell in which it occurs; a change in the sequence of base pairs in the chromosomal molecule. 2. De Vries, term for the sudden production of a species, as distinguished from variation. [L. muto, pp.
Sugar or snow peas are grown for their flat, green pods. Peas are a cool-season crop that must mature before the weather gets warm. The ideal growing temperature for peas is 55Â°F to 70Â°F. Sow peas in the garden 6 weeks before the average last frost date in spring or as soon as the soil can be worked.How to plant and spacing.lanting time. Peas are a cool-season crop that must mature before the weather gets warm. The ideal growing temperature for peas is 55Â°F to 70Â°F. Sow peas in the garden 6 weeks before the average last frost date in spring or as soon as the soil can be worked.
Peas can be grown as a spring or fall crop in most zones warmer than zone 2, and can be grown as a winter crop in frost-free climates. Fall plantings should be done 10 to 12 weeks before first fall frost. Peas require 55 to 80 days for maturity and fall crops will not mature after frost. Harvest shelling peas when pods are plump and full, and peas tender. Harvest snow peas while pods are flat, with only a hint of the pea within.