Mycorrhizal dependency of three shade trees: Gliricidia maculata Hbr., Moghania macrophylla (Willd.) OK. and Sesbania grandiflora L.
Relative mycorrhizal dependency of shade trees of coffee and cocoa had been studied in a pot experiment. Crop treatments consisted of three shade trees: Gliricidia, Moghania and Sesbania. Nine combination treatments of P sources \{TSP and rock phosphate (RP)\} and inocula (rhizobium and mycorrhiza) were tested. Growth of Gliricidia and Moghania were more dependent on mycorrhizal symbiosis compared to that of Sesbania. In general, relative mycorrhizal dependency of plant applied either with RP or with rhizobium was higher than those with TSP or uninoculated. The results also showed that Sesbania did not respond either to readily available P source or to sparingly soluble P source. The study concluded that Sesbania could be used successfully as shade trees for areas with marginal soils.
| Main Authors: | , |
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| Format: | biblioteca |
| Published: |
1994
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| Subjects: | COFFEA, THEOBROMA CACAO, ARBOLES DE SOMBRA, GLIRICIDIA MACULATA, MOGHANIA MACROPHYLLA, SESBANIA GRANDIFLORA, MICORRIZAS ARBUSCULARES VESICULARES, SIMBIOSIS, FOSFATO MINERAL, |
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| Summary: | Relative mycorrhizal dependency of shade trees of coffee and cocoa had been studied in a pot experiment. Crop treatments consisted of three shade trees: Gliricidia, Moghania and Sesbania. Nine combination treatments of P sources \{TSP and rock phosphate (RP)\} and inocula (rhizobium and mycorrhiza) were tested. Growth of Gliricidia and Moghania were more dependent on mycorrhizal symbiosis compared to that of Sesbania. In general, relative mycorrhizal dependency of plant applied either with RP or with rhizobium was higher than those with TSP or uninoculated. The results also showed that Sesbania did not respond either to readily available P source or to sparingly soluble P source. The study concluded that Sesbania could be used successfully as shade trees for areas with marginal soils. |
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