questions: asking for choosing of varieties 
 answers: numerous hybrid and open-pollinated varieties are
available. hybrids usually produce higher yields,
but their seeds are relatively expensive and must
be purchased for every planting. open-pollinated
varieties have the advantage that their seeds may
be saved and used for future plantings.
the choice of variety depends on market preference
in a certain region, and is based on fruit
shape and color. generally, there are three types:
1) small, 10–20 cm long, 100–300 g, usually dark
green, very bitter; 2) long, 30–60 cm long, 200–
600 g, light green in color with medium size protuberances,
and only slightly bitter; and 3) triangular
fruit type, cone-shaped, 9–12 cm long, 300-600 g,
light to dark green with prominent tubercles, moderately
to strongly bitter . select a variety
that is well adapted to your growing conditions and
preferred by consumers. growers are encouraged
to compare the performances of different varieties
during different seasons to identify superior types.