Preliminary spatial study of endomycorrhizal fungi in root-plants of dried areas in Buleleng, Bali [Indonesia]
2011
Proborini, M.W., Udayana Univ., Bali (Indonesia). Dept. of Biology
Plants growing in poor soil areas are commonly associated with endomycorrhizal fungi as a mutualism symbiotic. The fungi takes a role on enhancement of the uptake of soil mineral nutrients particularly phosphorus, thereby enhancing host plant vigor. Some Bali areas, particularly Buleleng area have poor soil conditions and few studies on the endomyorrhizal fungi have been undertaken. This study sought to observe the occurrence and percentage of indigenous endomycorrhizal fungi associated with plants commonly planted in two villages, West Tianyar and Penjarakan. The study was undertaken during August 2010. The root infection in 14 plants categorized as crop and associated-shaded plants were observed by means of Grid-line Intersect method. The number of spores was counted by wet sieving and decanting method. The results showed 12 root plant species had endomycorrhizal infection. The colonization is presented as vesicle, external hyphae and spore forms. The vesicle forms were not found during the examination. The percentage of infected roots varied from 24.7% to 64.3% of samples taken from Penjarakan and 21%-45.67% from Tianyar. The number of spores also varied from 12-35 spores/100g of soil. The number of spores found in Tianyar was higher than those at Penjarkan. Such variation could be attributed to soil texture, where Tianyar soil is sandy silt and Penjarakan is dried-clay loam.
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