tailieunhanh - Influence of soil chemical properties on relative abundance of arbuscular mycorrhiza in forested soils in Malaysia

The effect of soil chemical properties on the diversity and colonization of arbuscular mycorrhiza (AM) varies among ecosystems. This study was conducted to assess and compare the abundance of AM in a rehabilitated forest and a logged-over forest soil using the most probable number and spore number methods. | Research Article Turk J Agric For 36 (2012) 451-458 © TÜBİTAK doi: Influence of soil chemical properties on relative abundance of arbuscular mycorrhiza in forested soils in Malaysia Kian Huat ONG*, John Keen CHUBO, Jie Hung KING, Chia Shing LEE, Dennis Shan An SU, Philip SIPEN Faculty of Agricultural and Food Sciences, Universiti Putra Malaysia Bintulu Sarawak Campus, P. O. Box 396, 97008 Bintulu, Sarawak - MALAYSIA Received: ● Accepted: Abstract: The effect of soil chemical properties on the diversity and colonization of arbuscular mycorrhiza (AM) varies among ecosystems. This study was conducted to assess and compare the abundance of AM in a rehabilitated forest and a logged-over forest soil using the most probable number and spore number methods. Glomus () and Acaulospora () were found to be abundant in both sites, while Gigaspora was found only in the loggedover forest. The abundance of AM in the rehabilitated forest based on the spore count was significantly higher than in the logged-over forest by a 6-fold difference. Furthermore, root colonization in the rehabilitated forest was found to be almost 9-fold higher than in the logged-over forest. Such differences are linked to the soil chemical properties. The addition of organic matter during forest rehabilitation activity had created favorable conditions for AM sporulation. Soil P in both forests was positively related to the spore count (r > , P < ) while the most probable number (MPN) was negatively influenced by soil K (r = –, P < ). In conclusion, this study showed that soil chemical properties have a direct effect on the abundance of AM. Key words: Arbuscular mycorrhiza, logged-over forest, rehabilitated forest, soil nutrient Introduction Deforestation is widespread in the tropics. It was estimated that in the 1980s Malaysia lost approximately 250,000 ha of forest annually (McMorrow and Talip 2001). Between 1990 and

• Nông nghiệp
• Arbuscular mycorrhiza
• Logged over forest
• Rehabilitated forest
• Soil nutrient
• Soil chemical properties
• Chemical properties of soil Chaka
• Chemical properties
• Soil Chaka
• Chemical properties of soil in chaka block
• Soil fertility
• Effect of lime on soil chemical properties
• Organic on soil chemical properties
• Inorganic fertilizers on soil chemical properties and yield of chilli
• CM while total available N
• Treatments with organic manure
• Soil health
• Aonla plantation
• Physio chemical properties of soil
• Inter cropping systems
• Soil physico chemical properties
• Rhizobium on physico chemical properties
• Soil in field pea
• Field pea
• Physical analysis of soil
• Soil in Pea crop
• Soil properties and yield
• Integrated nitrogen management
• Yield of rice and chemical properties
• Chemical properties of sodic soil
• Sodic soil
• Physico chemical properties of soil
• Potassium etc
• Soil from different blocks
• Assessment of chemical properties
• Soil physicochemical properties
• Black gram
• Different levels of NPK
• Molybdenum on soil physico chemical properties
• Chemical properties of black gram
• Soil properties
• Climate change on soil chemical
• Biological properties
• Soil like pH
• Physical properties like porosity
• Soil heath card
• Soil testing kit
• Micro nutrients
• Soil chemical properties
• Inorganic nutrient sources
• Inorganic nutrient sources on physical
• Chemical properties of soil
• Poultry manure
• Phosphorus and soil properties
• Manure and fertilizers
• Soil physico chemical
• Rainfed groundnut growing alfisols
• Fertilizers on soil physico chemical
• Biochar etc
• Different level of N
• Biochar on soil physico chemical properties
• Yield attribute of black gram
• Levels of inorganic fertilizer
• Organic manure
• Bio fertilizer on physico chemical properties
• Soil in pea
• Nutrient uptake
• Acid soil of nagaland
• Properties of acid soil
• Chemical composition of maize
• NPK uptake
• Soil physic chemical properties
• Integrated nutrient management
• Chemiscal properties
• Illicium verum Hook
• Soil depths
• Soil organic carbon
• Physico chemical properties
• Available zinc status
• Relation to soil properties
• Red and lateritic Soils
• Coefficient of variance
• Ordinary kriging
• Important operation
• Soil morphology
• Physical properties
• Soil profile
• Soil horizons
• Kharif maize etc
• Organic manures on yield
• Kharif maize
• Eastern plain zone of Uttar Pradesh
• Yellow mustard
• NPK on physico chemical properties
• Yield attribute of yellow mustard
• Zinc with NPK
• Soil structure
• Soil physical
• Soil to improve the soil health
• Different geotextile in soil
• Long term effect
• Physical and chemical property of soil
• Soil properties in a Vertisol
• Inorganic nutrient management practises
• Fertilizer recommendations
• Udham Singh Nagar
• Soil properties in molisols