| Registro completo |
| Provedor de dados: |
27
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| País: |
Belgium
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| Título: |
The Newman method, modified for the estimation of the total thallus length of filamentous algae
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| Autores: |
Gillis, J.
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| Data: |
1987
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| Ano: |
1987
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| Palavras-chave: |
Algae
Measurement
Thallus
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| Resumo: |
Newman's (1966) method of total root length estimation is modified and adapted to measure total length of filamentous algae in culture (i.c. <i>Polysiphonia</i>). This method makes possible a measurement and an estimation of the growth of the algae in culture without disturbing them. The petri dishes are placed on a 1x1 mm grid and the filament/grid intersections are counted. Total filament length (T) is given by T = Pi N (LxW)/4(LxW), with N = the number of intersections, L = the length and W = width of area in which the thallus is situated. Total filament length of <i>Polysiphonia</i> in culture estimated by the Newman method is compared with camera lucida measurements. The correlation between the results obtained by the 2 techniques is very high (r = 0.97). The maximum deviation between the means of the total length obtained by the 2 methods was 7.2%: these means are not significantly different (Student t-test). The Newman estimation method required less time than direct measurement, and its results are not significantly different.
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| Tipo: |
Info:eu-repo/semantics/article
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| Idioma: |
Inglês
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| Identificador: |
http://www.vliz.be/nl/open-marien-archief?module=ref&refid=3254
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| Fonte: |
%3Ci%3ECryptogam.%2C+Algol.+8%282%29%3C%2Fi%3E%3A+107-112
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| Direitos: |
info:eu-repo/semantics/restrictedAccess
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