The correction of boron deficiency in cacao in Ecuador
Boron deficiency has been shown to exist on certain soils in Ecuador, cacao showing leaf symptoms and giving low yields. The effect of three levels of boron supplied as a monthly foliar spray of Solubor has been studied. Boron treatments led to an increase in the dry weight of the leaf and to increased contents of nitrogen and boron as a percentage of dry weight. The expression of leaf symptoms was reduced. Pollen germination, growth of the pollen tube, fruit set and persistence of the fruit were all increase. An increase in yield of the trees was found only with artificial pollination. Natural pollination on the site appears to be low, the result, it is thought, of a shortage of insect pollinators
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1970
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| Subjects: | DEFICIENCIA DE MINERALES, THEOBROMA CACAO, BORO, ENFERMEDADES CARENCIALES, SINTOMAS, APLICACION FOLIAR, POLINIZACION, GERMINACION, PESO SECO, FERTILIZANTES, RENDIMIENTO, ECUADOR, |
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KOHA-OAI-BVE:671182022-02-01T12:31:34ZThe correction of boron deficiency in cacao in Ecuador 93896 Mestanza, S. 85451 Laínez C, J. 1970Boron deficiency has been shown to exist on certain soils in Ecuador, cacao showing leaf symptoms and giving low yields. The effect of three levels of boron supplied as a monthly foliar spray of Solubor has been studied. Boron treatments led to an increase in the dry weight of the leaf and to increased contents of nitrogen and boron as a percentage of dry weight. The expression of leaf symptoms was reduced. Pollen germination, growth of the pollen tube, fruit set and persistence of the fruit were all increase. An increase in yield of the trees was found only with artificial pollination. Natural pollination on the site appears to be low, the result, it is thought, of a shortage of insect pollinatorsBoron deficiency has been shown to exist on certain soils in Ecuador, cacao showing leaf symptoms and giving low yields. The effect of three levels of boron supplied as a monthly foliar spray of Solubor has been studied. Boron treatments led to an increase in the dry weight of the leaf and to increased contents of nitrogen and boron as a percentage of dry weight. The expression of leaf symptoms was reduced. Pollen germination, growth of the pollen tube, fruit set and persistence of the fruit were all increase. An increase in yield of the trees was found only with artificial pollination. Natural pollination on the site appears to be low, the result, it is thought, of a shortage of insect pollinatorsDEFICIENCIA DE MINERALESTHEOBROMA CACAOBOROENFERMEDADES CARENCIALESSINTOMASAPLICACION FOLIARPOLINIZACIONGERMINACIONPESO SECOFERTILIZANTESRENDIMIENTOECUADORTropical Agriculture (Trinidad y Tobago) |
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IICA |
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Costa Rica |
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CR |
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Bibliográfico |
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cat-sibiica |
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biblioteca |
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America Central |
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Sistema de Bibliotecas IICA/CATIE |
| topic |
DEFICIENCIA DE MINERALES THEOBROMA CACAO BORO ENFERMEDADES CARENCIALES SINTOMAS APLICACION FOLIAR POLINIZACION GERMINACION PESO SECO FERTILIZANTES RENDIMIENTO ECUADOR DEFICIENCIA DE MINERALES THEOBROMA CACAO BORO ENFERMEDADES CARENCIALES SINTOMAS APLICACION FOLIAR POLINIZACION GERMINACION PESO SECO FERTILIZANTES RENDIMIENTO ECUADOR |
| spellingShingle |
DEFICIENCIA DE MINERALES THEOBROMA CACAO BORO ENFERMEDADES CARENCIALES SINTOMAS APLICACION FOLIAR POLINIZACION GERMINACION PESO SECO FERTILIZANTES RENDIMIENTO ECUADOR DEFICIENCIA DE MINERALES THEOBROMA CACAO BORO ENFERMEDADES CARENCIALES SINTOMAS APLICACION FOLIAR POLINIZACION GERMINACION PESO SECO FERTILIZANTES RENDIMIENTO ECUADOR 93896 Mestanza, S. 85451 Laínez C, J. The correction of boron deficiency in cacao in Ecuador |
| description |
Boron deficiency has been shown to exist on certain soils in Ecuador, cacao showing leaf symptoms and giving low yields. The effect of three levels of boron supplied as a monthly foliar spray of Solubor has been studied. Boron treatments led to an increase in the dry weight of the leaf and to increased contents of nitrogen and boron as a percentage of dry weight. The expression of leaf symptoms was reduced. Pollen germination, growth of the pollen tube, fruit set and persistence of the fruit were all increase. An increase in yield of the trees was found only with artificial pollination. Natural pollination on the site appears to be low, the result, it is thought, of a shortage of insect pollinators |
| format |
|
| topic_facet |
DEFICIENCIA DE MINERALES THEOBROMA CACAO BORO ENFERMEDADES CARENCIALES SINTOMAS APLICACION FOLIAR POLINIZACION GERMINACION PESO SECO FERTILIZANTES RENDIMIENTO ECUADOR |
| author |
93896 Mestanza, S. 85451 Laínez C, J. |
| author_facet |
93896 Mestanza, S. 85451 Laínez C, J. |
| author_sort |
93896 Mestanza, S. |
| title |
The correction of boron deficiency in cacao in Ecuador |
| title_short |
The correction of boron deficiency in cacao in Ecuador |
| title_full |
The correction of boron deficiency in cacao in Ecuador |
| title_fullStr |
The correction of boron deficiency in cacao in Ecuador |
| title_full_unstemmed |
The correction of boron deficiency in cacao in Ecuador |
| title_sort |
correction of boron deficiency in cacao in ecuador |
| publishDate |
1970 |
| work_keys_str_mv |
AT 93896mestanzas thecorrectionofborondeficiencyincacaoinecuador AT 85451lainezcj thecorrectionofborondeficiencyincacaoinecuador AT 93896mestanzas correctionofborondeficiencyincacaoinecuador AT 85451lainezcj correctionofborondeficiencyincacaoinecuador |
| _version_ |
1756056932476518400 |