Name: IGOR DAMASCENO PIRES PEREIRA
Publication date: 15/06/2022
Advisor:
Name |
Role |
|---|---|
| ANTELMO RALPH FALQUETO | Advisor * |
Examining board:
| Name |
Role |
|---|---|
| ANDREIA BARCELOS PASSOS LIMA GONTIJO | Internal Examiner * |
| ANTELMO RALPH FALQUETO | Advisor * |
Summary: In Espírito Santo, coffee farming is well developed, being present in about 80% of the
municipalities in Espírito Santo, generating a wide distribution of employment and
income for more than half of the municipalities in the state. However, the climate
change scenario, with high temperatures and low precipitation for specific times of
the year, almost always reflects the physiological impairment of coffee trees. This
problem opens precedents for new research and strategies aimed at understanding
the physiological processes of coffee plants under such conditions. The use of
perennial species that can be intercropped with coffee trees in Agroforestry Systems
in these cases is an advantageous alternative, as it aims to minimize adverse effects
on the crop, evidencing a need to redirect coffee cultivation in terms of its techniques.
Given the problem, this study proposes to evaluate the physiological responses of
sixteen clones of Coffea canephora under two conditions: intercropping with Hevea
brasiliensis (CO) and non-intercropping (NC). The experiment was carried out at
Fazenda Experimental de Sooretama (FES), in the municipality of Sooretama - ES,
between October 2018 and September 2019 and in both treatments (CO and NC) the
fluorescence of chlorophyll a (JIP test), variation of leaf nutrients and productivity for
the sixteen clones was evaluated. The data were submitted to analysis of variance
(ANOVA) and the means were compared by the Scott-Knott and Tukey test, at the
5% probability level, with the SISVAR 5.6 software. The shading provided by the
consortium with Hevea brasiliensis and the exposure of the clones to full sun
modulate the physiology of the coffee plants is corroborated by the results obtained
for chlorophyll fluorescence, leaf chemical analysis and clone productivity in both
treatments and in shading condition the clones have higher photosynthetic
performance, as well as higher productivity.
