A preliminary report on experiments of hand pollination and fertilizers in cacao
Two experiments were conducted in Turrialba with 14-year-old cuttings of UF-667 clone to test a combination of heavy hand pollination and the use of fertilizers. No response to fertilizers with and without pollination was obtained. Hand pollination increased yields significantly, at least 4 times as much as open pollination. However, heavily hand-pollinated trees did not flower during the November-January peak, while open-pollinated trees flowered normally. In the subsequent April-June cycle of flowering, the hand-pollinated trees with fertilizers began flowering earlier than hand-pollinated ones without fertilizers, indicating some response to fertilizers. Cherelle wilt and infection with Phytophthora palmivora were more prevalent in the hand-pollinated plots, but not significantly different from the checks
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Tafo (Ghana)
1971
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Subjects: | THEOBROMA CACAO, POLINIZACION, FERTILIZANTES NPK, OLIGOELEMENTOS, FLORACION, MARCHITEZ, PHYTOPHTHORA PALMIVORA, POLINIZACION MANUAL, COSTA RICA, |
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KOHA-OAI-BVE:671512020-02-07T06:33:08ZA preliminary report on experiments of hand pollination and fertilizers in cacaoProceedings 120614 Soria V, J. 5331 Cocoa Research Institute, Tafo (Ghana) 3. International Cocoa Research Conference Accra (Ghana) 23-29 Nov 1969 Tafo (Ghana)1971Two experiments were conducted in Turrialba with 14-year-old cuttings of UF-667 clone to test a combination of heavy hand pollination and the use of fertilizers. No response to fertilizers with and without pollination was obtained. Hand pollination increased yields significantly, at least 4 times as much as open pollination. However, heavily hand-pollinated trees did not flower during the November-January peak, while open-pollinated trees flowered normally. In the subsequent April-June cycle of flowering, the hand-pollinated trees with fertilizers began flowering earlier than hand-pollinated ones without fertilizers, indicating some response to fertilizers. Cherelle wilt and infection with Phytophthora palmivora were more prevalent in the hand-pollinated plots, but not significantly different from the checksTwo experiments were conducted in Turrialba with 14-year-old cuttings of UF-667 clone to test a combination of heavy hand pollination and the use of fertilizers. No response to fertilizers with and without pollination was obtained. Hand pollination increased yields significantly, at least 4 times as much as open pollination. However, heavily hand-pollinated trees did not flower during the November-January peak, while open-pollinated trees flowered normally. In the subsequent April-June cycle of flowering, the hand-pollinated trees with fertilizers began flowering earlier than hand-pollinated ones without fertilizers, indicating some response to fertilizers. Cherelle wilt and infection with Phytophthora palmivora were more prevalent in the hand-pollinated plots, but not significantly different from the checksTHEOBROMA CACAOPOLINIZACIONFERTILIZANTES NPKOLIGOELEMENTOSFLORACIONMARCHITEZPHYTOPHTHORA PALMIVORAPOLINIZACION MANUALCOSTA RICA |
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THEOBROMA CACAO POLINIZACION FERTILIZANTES NPK OLIGOELEMENTOS FLORACION MARCHITEZ PHYTOPHTHORA PALMIVORA POLINIZACION MANUAL COSTA RICA THEOBROMA CACAO POLINIZACION FERTILIZANTES NPK OLIGOELEMENTOS FLORACION MARCHITEZ PHYTOPHTHORA PALMIVORA POLINIZACION MANUAL COSTA RICA |
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THEOBROMA CACAO POLINIZACION FERTILIZANTES NPK OLIGOELEMENTOS FLORACION MARCHITEZ PHYTOPHTHORA PALMIVORA POLINIZACION MANUAL COSTA RICA THEOBROMA CACAO POLINIZACION FERTILIZANTES NPK OLIGOELEMENTOS FLORACION MARCHITEZ PHYTOPHTHORA PALMIVORA POLINIZACION MANUAL COSTA RICA 120614 Soria V, J. 5331 Cocoa Research Institute, Tafo (Ghana) 3. International Cocoa Research Conference Accra (Ghana) 23-29 Nov 1969 A preliminary report on experiments of hand pollination and fertilizers in cacao |
description |
Two experiments were conducted in Turrialba with 14-year-old cuttings of UF-667 clone to test a combination of heavy hand pollination and the use of fertilizers. No response to fertilizers with and without pollination was obtained. Hand pollination increased yields significantly, at least 4 times as much as open pollination. However, heavily hand-pollinated trees did not flower during the November-January peak, while open-pollinated trees flowered normally. In the subsequent April-June cycle of flowering, the hand-pollinated trees with fertilizers began flowering earlier than hand-pollinated ones without fertilizers, indicating some response to fertilizers. Cherelle wilt and infection with Phytophthora palmivora were more prevalent in the hand-pollinated plots, but not significantly different from the checks |
format |
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topic_facet |
THEOBROMA CACAO POLINIZACION FERTILIZANTES NPK OLIGOELEMENTOS FLORACION MARCHITEZ PHYTOPHTHORA PALMIVORA POLINIZACION MANUAL COSTA RICA |
author |
120614 Soria V, J. 5331 Cocoa Research Institute, Tafo (Ghana) 3. International Cocoa Research Conference Accra (Ghana) 23-29 Nov 1969 |
author_facet |
120614 Soria V, J. 5331 Cocoa Research Institute, Tafo (Ghana) 3. International Cocoa Research Conference Accra (Ghana) 23-29 Nov 1969 |
author_sort |
120614 Soria V, J. |
title |
A preliminary report on experiments of hand pollination and fertilizers in cacao |
title_short |
A preliminary report on experiments of hand pollination and fertilizers in cacao |
title_full |
A preliminary report on experiments of hand pollination and fertilizers in cacao |
title_fullStr |
A preliminary report on experiments of hand pollination and fertilizers in cacao |
title_full_unstemmed |
A preliminary report on experiments of hand pollination and fertilizers in cacao |
title_sort |
preliminary report on experiments of hand pollination and fertilizers in cacao |
publisher |
Tafo (Ghana) |
publishDate |
1971 |
work_keys_str_mv |
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_version_ |
1756056936975958016 |