6.1 study of root disease resistant White of the original species of timber saplings. To find out the root causes that are resistant to destruction of the white root disease. 6.2 study genetic origins of rubber with white root disease resistance using the RAPD technique.6.3 education, fragmentation of root disease caused by a soil depth of white. Symptoms of root disease study 6.4 white timber and proven disease.6.6 in order to study and compare to find the relationship of histology and morphology of fungal genotype microporus R.
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