Comparison of methods for measuring the watermelon leaf area
The leaf area determination is very important in agronomic and physiologic studies, for supplying information on vegetal metabolism, and the techniques used should be simple, fast and accurate. This study aimed to compare different methods for measuring leaf area in the watermelon crop. For that, th...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
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Universidade Federal de Goiás
2012-06-01
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| Series: | Pesquisa Agropecuária Tropical |
| Subjects: | |
| Online Access: | https://www.revistas.ufg.br/pat/article/view/15764 |
| _version_ | 1818807518366793728 |
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| author | Marcelo Sobreira de Souza Samara Sibelle Vieira Alves Jeferson Luiz Dollabona Dombroski José Dijalma Batista de Freitas Edna Maria Mendes Aroucha |
| author_facet | Marcelo Sobreira de Souza Samara Sibelle Vieira Alves Jeferson Luiz Dollabona Dombroski José Dijalma Batista de Freitas Edna Maria Mendes Aroucha |
| author_sort | Marcelo Sobreira de Souza |
| collection | DOAJ |
| description | The leaf area determination is very important in agronomic and physiologic studies, for supplying information on vegetal metabolism, and the techniques used should be simple, fast and accurate. This study aimed to compare different methods for measuring leaf area in the watermelon crop. For that, the accuracy of four measuring methods was evaluated (experiment 1) and leaf area was compared by using the integration method provided by the LI-COR® model LI 3100 equipment, at 0, 30, 60, 90, and 120 minutes, after being determined with the aid of a scanner (experiment 2). For the experiment 1, a completely randomized design, with four treatments and 19 replications, was used. The treatments were equivalent to the Leaf area integrator AM 300, Leaf area integrator LI-COR® model LI 3100, Leaf discs, and Digital image analysis (scanner) methods, and were compared to the reference method (scanner), in accordance with the linear correlation coefficient (r). For the experiment 2, a randomized blocks design, with six treatments and ten replications (leaves), was used, with each leaf being considered a block and their average compared by using the Tukey test at 5%. Differences were observed for leaf area estimation according to the method employed. The leaf discs method was considered the most accurate one, for the watermelon crop, and the LI-COR® model 3100 is not recommended for this crop, particularly when readings are made at longer intervals. |
| first_indexed | 2024-12-18T19:26:56Z |
| format | Article |
| id | doaj.art-46a2fa74daa74dcab4bcd61c3e71a331 |
| institution | Directory Open Access Journal |
| issn | 1983-4063 |
| language | English |
| last_indexed | 2024-12-18T19:26:56Z |
| publishDate | 2012-06-01 |
| publisher | Universidade Federal de Goiás |
| record_format | Article |
| series | Pesquisa Agropecuária Tropical |
| spelling | doaj.art-46a2fa74daa74dcab4bcd61c3e71a3312022-12-21T20:55:51ZengUniversidade Federal de GoiásPesquisa Agropecuária Tropical1983-40632012-06-0142224124510.1590/S1983-40632012000200016Comparison of methods for measuring the watermelon leaf areaMarcelo Sobreira de Souza0Samara Sibelle Vieira Alves1Jeferson Luiz Dollabona Dombroski2José Dijalma Batista de Freitas3Edna Maria Mendes Aroucha4Universidade Federal Rural do Semiárido, Departamento de Ciências Ambientais e Tecnológicas, Mossoró, RN, Brasil.Universidade Federal Rural do Semiárido, Departamento de Ciências Ambientais e Tecnológicas, Mossoró, RN, Brasil.Universidade Federal Rural do Semiárido, Departamento de Ciências Vegetais, Mossoró, RN, Brasil.Universidade Federal Rural do Semiárido, Departamento de Ciências Ambientais e Tecnológicas, Mossoró, RN, Brasil.Universidade Federal Rural do Semiárido, Departamento de Agrotecnologia e Ciências Sociais, Mossoró, RN, Brasil.The leaf area determination is very important in agronomic and physiologic studies, for supplying information on vegetal metabolism, and the techniques used should be simple, fast and accurate. This study aimed to compare different methods for measuring leaf area in the watermelon crop. For that, the accuracy of four measuring methods was evaluated (experiment 1) and leaf area was compared by using the integration method provided by the LI-COR® model LI 3100 equipment, at 0, 30, 60, 90, and 120 minutes, after being determined with the aid of a scanner (experiment 2). For the experiment 1, a completely randomized design, with four treatments and 19 replications, was used. The treatments were equivalent to the Leaf area integrator AM 300, Leaf area integrator LI-COR® model LI 3100, Leaf discs, and Digital image analysis (scanner) methods, and were compared to the reference method (scanner), in accordance with the linear correlation coefficient (r). For the experiment 2, a randomized blocks design, with six treatments and ten replications (leaves), was used, with each leaf being considered a block and their average compared by using the Tukey test at 5%. Differences were observed for leaf area estimation according to the method employed. The leaf discs method was considered the most accurate one, for the watermelon crop, and the LI-COR® model 3100 is not recommended for this crop, particularly when readings are made at longer intervals.https://www.revistas.ufg.br/pat/article/view/15764Citrullus lanatus (Thunb.) Matsum & Nakaidestructive and nondestructive methodsdigital image |
| spellingShingle | Marcelo Sobreira de Souza Samara Sibelle Vieira Alves Jeferson Luiz Dollabona Dombroski José Dijalma Batista de Freitas Edna Maria Mendes Aroucha Comparison of methods for measuring the watermelon leaf area Pesquisa Agropecuária Tropical Citrullus lanatus (Thunb.) Matsum & Nakai destructive and nondestructive methods digital image |
| title | Comparison of methods for measuring the watermelon leaf area |
| title_full | Comparison of methods for measuring the watermelon leaf area |
| title_fullStr | Comparison of methods for measuring the watermelon leaf area |
| title_full_unstemmed | Comparison of methods for measuring the watermelon leaf area |
| title_short | Comparison of methods for measuring the watermelon leaf area |
| title_sort | comparison of methods for measuring the watermelon leaf area |
| topic | Citrullus lanatus (Thunb.) Matsum & Nakai destructive and nondestructive methods digital image |
| url | https://www.revistas.ufg.br/pat/article/view/15764 |
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