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In the present study, statistical analyses were conducted of
the leaf width and corm diameter of Colchicum speciosum,
in order to be able to determine whether it is suitable for harvesting,
without uprooting the plant. C. speciosum samples (n = 213) were
collected randomly from the Hamsiköy district in the Eastern Black Sea
Region of Turkey. The leaf width and corm diameter of each plant was
measured. Data of 180 plants were used in correlation and regression
analyses, and data of 33 plants were used as a control group. The
correlation between leaf width and corm diameter was found to be 0.864.
A determination model created using leaf width and corm diameter showed
a determination coefficient (R2) of 0.778, and standard error
(Sy) 0.128. A paired t-test was conducted using Control data
in order to test the validity of the regression model. The results
indicated that there was no significant difference between the corm
diameter obtained through measurements and the estimated corm diameter
obtained using the created model at a reliability level of 95% (p <
0.05). According to the regression model created, the minimum leaf width
was estimated as 73 mm in a C. speciosum plant with a minimum
ripe corm diameter of 25 mm.
Key words:
Colchicum speciosum, corm diameter, leaf width, modeling. |
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