Non-destructive measurement of leaf area and leaf pigments in feijoa trees
ABSTRACT Leaf area (cm2 per leaf) and leaf pigment content are important traits that can be used to better understand a plants physiology. In this study, empirical non-destructive models for leaf area and leaf pigment based on the leaf dimensions, length (L) and width (W) in centimeters, and chlorop...
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Universidade Federal de Campina Grande
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| Series: | Revista Brasileira de Engenharia Agrícola e Ambiental |
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| author | Marcos R. Sachet Idemir Citadin Marieli T. Guerrezi Rafael H. Pertille Joel Donazzolo Rubens O. Nodari |
| author_facet | Marcos R. Sachet Idemir Citadin Marieli T. Guerrezi Rafael H. Pertille Joel Donazzolo Rubens O. Nodari |
| author_sort | Marcos R. Sachet |
| collection | DOAJ |
| description | ABSTRACT Leaf area (cm2 per leaf) and leaf pigment content are important traits that can be used to better understand a plants physiology. In this study, empirical non-destructive models for leaf area and leaf pigment based on the leaf dimensions, length (L) and width (W) in centimeters, and chlorophyll meter readings were developed for feijoa (Acca sellowiana). The experiment was carried out during January 2016 using five-year-old trees of 60 genotypes, grown under field conditions in the state of Paraná, Brazil. The proposed leaf area (LA) model was L A = 0 . 0022 L 3 + 0 . 1482 W 2 + 0 . 6159 L W + 0 . 1076 (R2 = 0.99). Three current leaf area models found in the literature were also assessed. All of the already created models were less accurate than the model proposed in this article. The proposed leaf pigment models were based on the Falker Chlorophyll Index for Chlorophyll a (A) and b (B), these were C h l a = 2 . 564 A + 13 . 098 B - 42 . 605 (R2 = 0.94), C h l b = 1 . 538 A + 3 . 287 B + 8 . 847 (R2 = 0.86) and C a r o t e n o i d s = 0 . 947 B + 8 . 943 (R2 = 0.88) expressed as µmol m-2 of leaf blade. In conclusion, the proposed models in this study were shown to be a reliable non-destructivel way of estimating A. sellowiana leaf area and leaf pigment. |
| format | Article |
| id | doaj-art-47eae6320e9849cbba86c8034ac2e688 |
| institution | OA Journals |
| issn | 1807-1929 |
| language | English |
| publisher | Universidade Federal de Campina Grande |
| record_format | Article |
| series | Revista Brasileira de Engenharia Agrícola e Ambiental |
| spelling | doaj-art-47eae6320e9849cbba86c8034ac2e6882025-08-20T02:17:46ZengUniversidade Federal de Campina GrandeRevista Brasileira de Engenharia Agrícola e Ambiental1807-1929231162010.1590/1807-1929/agriambi.v23n1p16-20S1415-43662019000100016Non-destructive measurement of leaf area and leaf pigments in feijoa treesMarcos R. SachetIdemir CitadinMarieli T. GuerreziRafael H. PertilleJoel DonazzoloRubens O. NodariABSTRACT Leaf area (cm2 per leaf) and leaf pigment content are important traits that can be used to better understand a plants physiology. In this study, empirical non-destructive models for leaf area and leaf pigment based on the leaf dimensions, length (L) and width (W) in centimeters, and chlorophyll meter readings were developed for feijoa (Acca sellowiana). The experiment was carried out during January 2016 using five-year-old trees of 60 genotypes, grown under field conditions in the state of Paraná, Brazil. The proposed leaf area (LA) model was L A = 0 . 0022 L 3 + 0 . 1482 W 2 + 0 . 6159 L W + 0 . 1076 (R2 = 0.99). Three current leaf area models found in the literature were also assessed. All of the already created models were less accurate than the model proposed in this article. The proposed leaf pigment models were based on the Falker Chlorophyll Index for Chlorophyll a (A) and b (B), these were C h l a = 2 . 564 A + 13 . 098 B - 42 . 605 (R2 = 0.94), C h l b = 1 . 538 A + 3 . 287 B + 8 . 847 (R2 = 0.86) and C a r o t e n o i d s = 0 . 947 B + 8 . 943 (R2 = 0.88) expressed as µmol m-2 of leaf blade. In conclusion, the proposed models in this study were shown to be a reliable non-destructivel way of estimating A. sellowiana leaf area and leaf pigment.http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-43662019000100016&lng=en&tlng=enestimativas indiretas‘pineapple’-guavaAcca sellowiana |
| spellingShingle | Marcos R. Sachet Idemir Citadin Marieli T. Guerrezi Rafael H. Pertille Joel Donazzolo Rubens O. Nodari Non-destructive measurement of leaf area and leaf pigments in feijoa trees Revista Brasileira de Engenharia Agrícola e Ambiental estimativas indiretas ‘pineapple’-guava Acca sellowiana |
| title | Non-destructive measurement of leaf area and leaf pigments in feijoa trees |
| title_full | Non-destructive measurement of leaf area and leaf pigments in feijoa trees |
| title_fullStr | Non-destructive measurement of leaf area and leaf pigments in feijoa trees |
| title_full_unstemmed | Non-destructive measurement of leaf area and leaf pigments in feijoa trees |
| title_short | Non-destructive measurement of leaf area and leaf pigments in feijoa trees |
| title_sort | non destructive measurement of leaf area and leaf pigments in feijoa trees |
| topic | estimativas indiretas ‘pineapple’-guava Acca sellowiana |
| url | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-43662019000100016&lng=en&tlng=en |
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