Title: Mycorrhizae Formation, Growth and Mineral Nutrient Uptake of Poncirus trifoliata in Response to P Application in Volcanic Ash Soil
Abstract:Mycorrhizae is well known to increase the uptake of P and other mineral nutrients of plants. But if available P levels in soil is too low or high, mycorrhizae formation is limited. This study was carr...Mycorrhizae is well known to increase the uptake of P and other mineral nutrients of plants. But if available P levels in soil is too low or high, mycorrhizae formation is limited. This study was carried out to determine the optimum level of available P for mycorrhizae formation of Poncirus trifoliata (trifoliate orange) seedling in volcanic ash soil. Eight levels of P in the range were applied with double superphosphate, and in each P level mycorrhizal fungi inoculated and uninnoculated treatments were included. The seedlings were grown in a greenhouse for 5 months and mycorrhizae formation, growth, and nutrient uptake were measured. As P application level increased, mycorrhizae formation increased at lower range of P application and the highest formation ratio of 43% was found at P level ( available P in soil). At further higher levels of P application, mycorrhizae formation was rather suppressed. Seedling growth was increased by the inoculation of mycorrhizal fungi, and maximum growth was found at P level where mycorrhizae formation was highest. The growth and mineral nutrient uptake of Poncirus trifoliata seedling represented a significant positive correlation with mycorrhizae formation at all P treatments.Read More
Publication Year: 2003
Publication Date: 2003-01-01
Language: en
Type: article
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