Name: ANA PAULA PEREIRA BIS
Publication date: 28/02/2018
Advisor:
Name |
Role |
|---|---|
| FÁBIO LUIZ PARTELLI | Advisor * |
Examining board:
| Name |
Role |
|---|---|
| ANTELMO RALPH FALQUETO | Internal Examiner * |
| FÁBIO LUIZ PARTELLI | Advisor * |
Summary: BIS, Ana Paula Pereira; M.Sc.; Universidade Federal do Espírito Santo; Fevereiro de 2018; Microclimatic characterization in conilon coffee plantations in different alignments: north-south and east-west; Advisor: Fábio Luiz Partelli.
Coffee is one of the most important agricultural commodities in the global market, because it is a drink consumed by at least half the world's population. However, this significant economic contribution made by coffee production may be affected if problems arising from global climate change are not studied. In this context, the first chapter "Microclimatic characterization of conilon coffee cultivated in the north-south alignment" aims to evaluate the climatic variables in order to quantify them and to point out possible effects on a north-south aligned crop. The experiment was carried out in four dates from December 2016 to September 2017. The variables irradiance, air temperature and vapor pressure deficit were quantified on the side of the plant facing east and west. Thermal images were obtained using an infrared camera to determine the coffee. There was no significant difference between the two sides for the evaluated factors that characterize the plant growth. The west side of the plant had higher values of irradiance, temperature and vapor pressure deficit in the afternoon, reaching an average difference of 5°C between the two sides at approximately 16 hours. Leaf temperature had similar behavior to air temperature, reaching an average difference of approximately 12°C between the two sides at 14 and 16 hours. The second chapter aimed to evaluate the influence of the east-west plantation alignment on the microclimatic aspects and plant growth in order to quantify the variables and to point out their possible effects on the coffee crop. Data collection was carried out in a full-fledged conilon coffee crop (Coffea canephora) at 2 years and 6 months of age at the beginning of the experiment, with a spacing of 3,0m x 1,0m, with a height of approximately 1,6 m. The experiment was carried out in four dates from December 2016 to September 2017. The variables irradiance, air temperature and vapor pressure deficit were quantified on the plant side facing north and south by means of external data loggers. Thermal images were obtained using an infrared camera to determine the coffee leaf temperature on both sides of the plant. The growth of the plant and leaf concentration on the sides of the plant facing
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north and south were evaluated. The northern side of the plant presented higher values of irradiance, temperature and vapor pressure deficit, reaching a difference of 4 °C between the two sides. The leaf temperature had a similar behavior to the air temperature, reaching a difference of approximately 11 °C between the two sides at noon. There was no significant difference between the two sides for the evaluated factors that characterize the plant growth.
