ISHS Acta Horticulturae 198: Symposium on the Timing of Field Production of Vegetables
FIELD AND LABORATORY RESPONSE OF SWEET CORN AND COWPEA TO A HYDROPHILIC POLYMER SEED COATING |
| Authors: | L. Baxter, L. Waters Jr |
| Abstract:
Four levels (1.1, 2.3, 4.6, and 9.1 g/kg seed) of the hydrophilic polymer Waterlock B100 were used as seed coatings to determine the optimum level for enhancing the establishment of sweet corn and cowpea on two soil types in Minnesota. Establishment of sweet corn was enhanced by the 2.3 and 4.6 g treatments, but at all levels, the polymer coating had a deleterious effect on cowpea establishment. The 4.6 g treatment was used in a second study to determine the effects of the polymer on the rates of imbibition, respiration, and germination of sweet corn at matric potentials (  m) of -0.01, -0.40, -1.0, and -1.5 MPa.
The seed coating was beneficial at -0.01 MPa, but at lower the polymer coating retarded seed germination.
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