Yields
Crop yield is the most effective method of assessing
economic benefits of production systems. The
objective of planting any crop is to get the highest
yield and the highest quality. In this experiment,
strawberry harvesting stages lasted between
30–39 days, depending on cultivar. Basic statistical
properties of the investigated cultivars are presented
in Table 3. Mean fruit weight ranged from
14.86 g for cv. Clery to 22.06 g for cv. Asia. It is necessary
to emphasize that all healthy fruits during
harvest were collected regardless of their weight.
Because of the great variation in size of sample
population up to 846 fruits between cvs Clery
and Asia it is necessary to compare coefficient of
variation (CV) instead of other parameters of variability.
All variants showed relatively high CV (Table
3), but the highest variability was recorded for
cv. Clery (56.69%), while the best homogeneity was
recorded for cv. Asia (52.11%). Shape parameters,
kurtosis and skewness, recorded values that indicated
normal distribution (Table 3).
In addition to cultivar and planting date, harvest
dynamics was directly affected by other factors such
as mulch type, temperature and humidity at the time
of ripening, irrigation, protection from disease and
pests (Duralija et al. 2004), and this was the reason
for considerable variations between different years
(Stapleton et al. 2001). It is well known that the