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Utilizing a Disease Nursery to Evaluate Cotton Cultivar Reaction to Verticillium Wilt

Albert Y. Chambers and Tracy D. Bush


Sixteen cultivars which were recommended for grower use or appeared to have potential for production in Tennessee were planted each year during 1994-96 at the Milan Experiment Station at Milan to evaluate their reaction to Verticillium wilt. Plots were located on an area which has a history of Verticillium wilt injury and consistently had moderate to severe wilt damage when environmental conditions were favorable for disease development. The plot area, in a creek bottom (Falaya silt loam soil), had been planted for over 20 years in a highly-susceptible cultivar every other year, and evaluation for wilt reaction was made in alternate years. Seed of the cultivars were packaged and planted May 6-10 with a four-row, tractor-mounted cone planter to assure uniform seeding rates. Fungicide and insecticide granules were applied to the seed furrow for seedling disease and early-season insect control. Plots were planted no-till in 1995 and conventionally in 1994 and 1996.

Reprinted from Proceedings of the 1998 Beltwide Cotton Conferences pp. 164 - 165
©National Cotton Council, Memphis TN

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Document last modified Sunday, Dec 6 1998