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Fungi and Insects Associated With Deterioration of White Clover Taproots 1
Author(s) -
Kilpatrick R. A.,
Dunn G. M.
Publication year - 1961
Publication title -
crop science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.76
H-Index - 147
eISSN - 1435-0653
pISSN - 0011-183X
DOI - 10.2135/cropsci1961.0011183x000100020017x
Subject(s) - agricultural experiment station , white (mutation) , library science , crop , citation , agriculture , biology , horticulture , agronomy , computer science , ecology , biochemistry , gene
most important pasture legumes in the Northeast, but it persists poorly. Yield is usually good the first harvest season, but often decreases rapidly during the second or the third. This decrease may be closely associated with death of the taproot, which occurs within 2 or 3 years after seeding (3, 21). Factors which may affect persistence are diseases (7, 11, 21), inadequate fertilization (2), insects (4, 7, 9, poor management (1, 10, 22), and plant type (3, 6, 16). Westbrooks and Tesar (21) reported that taproots began dying by the latter part of the first production year, and they were unable to find live taproots after July of the second harvest season. Jeffers (10) was unable to find taproots in a 3-year-old stand. Several workers (8, 15) stated that root rots were the most important dover diseases. The objectives of this investigation were (1) to study the kind and relative prevalence of fungi associated with diseased taproots, and (2) to determine longevity of taproots and the relationship of root rots to stand maintenance. Preliminary results were reported earlier (13).