Differences in chlorophyll content in leaves of sugar beet
2001
Pulkrabek, J. | Jozefyova, L. | Famera, O. | Sroller, J. | Stepanek, P. (Ceska Zemedelska Univ., Prague-Suchdol (Czech Republic))
The measured chlorophyll units show the relative amount of chlorophyll present in leaves of plants. The assessment of individual values of chlorophyll content showed a correlation between individual times of measurements and between the total average chlorophyll content. The assessment of relationship between yield and chlorophyll content showed no stronger correlation. The statistical assessment showed no correlation between chlorophyll content and the efficiency type (sugar, normal and yield type) of variety. The trials confirmed different chlorophyll content in the surveyed varieties and, accordingly, the need for their classification into groups. The varieties were classified into groups by the index of chlorophyll content in sugar beet leaves in the whole course of vegetation. The values of percentage of index of chlorophyll content 102.5 %, 97.5-102.5 % and 97.5 % were considered high, average and low, respectively. The above mentioned findings may be used for the creation of methodics for optimisation of nitrogen nutrition of sugar beet.
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