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Selection of a rapidly maturing population of Globodera rostochiensis by continuous cultivation of early potatoes in Ayrshire, Scotland
Author(s) -
HOMINICK W. M.
Publication year - 1982
Publication title -
annals of applied biology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.677
H-Index - 80
eISSN - 1744-7348
pISSN - 0003-4746
DOI - 10.1111/j.1744-7348.1982.tb01948.x
Subject(s) - biology , globodera rostochiensis , selection (genetic algorithm) , population , potato cyst nematode , agronomy , ecology , demography , nematode , artificial intelligence , computer science , sociology
SUMMARY Development of three G. rostochiensis populations was compared after 2, 3, 4, 5 and 13 wk at 12 and 15 °C on cv. Pentland Crown. The Jameston Farm (JF) and Skelmorlie populations originated from Ayrshire, Scotland, the former where early potatoes are grown annually, the latter from a farm where potatoes are grown in a conventional manner. The Feltwell population was originally from Norfolk, England. At 12 °C, nematodes from the JF population penetrated roots and developed more quickly than nematodes from the other populations. The JF population also produced the most cysts, which were the largest and contained most embryonated eggs. At 15 °C, differences between the populations were less marked, but JF nematodes invaded roots quickest and produced cysts with most eggs. These results are consistent with the hypothesis that the annual practice of early planting and harvesting to control losses caused by G. rostochiensis in Ayrshire is selecting a nematode population adapted genetically to the procedure.