Cultivation
'Commelin' initially enjoyed considerable commercial success and over 500,000 had been sold by 1974. However, the tree had only been screened for non-aggressive or semi-aggressive isolates of the causal fungus of Dutch elm disease. When its low resistance to the new strain of the disease became apparent, sales plummeted, and only 500 were sold in 1990. Fortunately, neither 'Commelin' nor its equally vulnerable contemporary 'Groeneveld' had sold in great numbers beyond the Netherlands, although it was later used in hybridization experiments in the USA as female parent of several cultivars.
Read more about this topic: Ulmus 'Commelin'
Famous quotes containing the word cultivation:
“The cultivation of one set of faculties tends to the disuse of others. The loss of one faculty sharpens others; the blind are sensitive in touch. Has not the extreme cultivation of the commercial faculty permitted others as essential to national life, to be blighted by disease?”
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