O Spad-502 Como Alternativa Para A Determinação Dos Teores De Clorofila Em Espécies Frutíferas
The relationship between the absolute chlorophyll content and the relative chlorophyll content (SPAD-502 values) was determined in four fruit trees species (cupuassu, araza, lemon, and annato). The absolute chlorophyll content was determined using a spectrophotometer after pigment extraction in 80%...
| Autor principal: | Jesus, Simone Verdes de |
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| Outros Autores: | Marenco, Ricardo Antonio |
| Grau: | Artigo |
| Idioma: | pt_BR |
| Publicado em: |
Acta Amazonica
2020
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| Assuntos: | |
| Acesso em linha: |
https://repositorio.inpa.gov.br/handle/1/13231 |
| Resumo: |
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The relationship between the absolute chlorophyll content and the relative chlorophyll content (SPAD-502 values) was determined in four fruit trees species (cupuassu, araza, lemon, and annato). The absolute chlorophyll content was determined using a spectrophotometer after pigment extraction in 80% acetone. Chlorophyll content (y) was related to SPAD values (x) as follows: y = 93.95e0.0356x, r² = 0.80 for annato; y =125.41e0.0205x, r² = 0.67 for cupuassu; y =67.58e0.0374x, r² = 0.80 for lemon and y =66.96e0.0365x, r² = 0.92 for araza. |