Udai. R. Bishnoi and Gaganpreet Kaur. Alabama A & M University, Dept. of Plant and Soil Science, 4900, Meridian Street,, P.O. Box 1208, Normal,, AL 35762
Problem of stand establishment in winter canola (Brassica napus L.) has been very widely reported and is due to its small seed size, planting depths, soil types, and other stresses. To alleviate this problem polymer coating of canola seed with fungicide and insecticide were tested. Three polymers [DiscoClear (DC), CelGard (CP), and Spectrum 511 (SP)] at three concentrations (0.33%, 0.66%, and 0.99%) alone and centricoated with Helix (H) and Apron (A) were tested on seed of two adapted cultivars 'Jetton’ and ‘Abilene’ at 0.75", and 1.5" planting depth in three soil types. Results from sandy loam soil showed that CP alone with each concentration gave significantly higher seedling emergence at 0.75” and in combination with helix at 1.5” planting depth for Abilene and at both planting depths in Jetton. Coating with SP gave significantly higher emergence at 0.66 and 0.99% concentration with helix at 1.5” depth in both the varieties. Canola seed coated at each concentration with DC gave significantly higher emergence with helix in both varieties and at both planting depths. Similar differences in seedling emergence from various polymer concentration and pesticides were observed among seeds of both canola varieties when planted in clay loam and silt loam soils.
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