Influencia de elementos meteorológicos no lancamento foliar do cacaueiro
This paper is concerned with an evaluation of the influence of meteorologic factors which jointly strongly influence the flushing of the cacao tree (Theobroma cacao L.). Fifty trees were chosen from a plot of 200 hybrid cacao trees. The number of developing leaves per plant was counted weekly from 10 labeled branches during 36 months. The combined effect of energy and water was determined including a corrected factor of water deficit (ETR/ETO) in the degree-day expression. Thus, a new function was obtained and termed corrected degree day (CDD). The results show that a relationship between meteorologic factors and flushing can be evidenced mainly through the CDD, although both stored water in the soil and solar radiation also exert an influence on the leaf flush. It is, however, observed that CDD individually represents the correlation about 80 percent and the most representative CDD is that observed three weeks before the leaf flush occurs
| Main Authors: | , , , |
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| Format: | biblioteca |
| Published: |
Jul-
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| Subjects: | THEOBROMA CACAO, HIBRIDOS, BROTACION, DAÑOS, FACTORES AMBIENTALES, TEMPERATURA, EVAPOTRANSPIRACION, CONTENIDO DE AGUA EN EL SUELO, LUZ DEL DIA, MODELO AGROCLIMATICO, |
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