An Effect of Soil Compaction on the Incidence of Potato Coiled Sprout

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Abstract
SUMMARY: The incidence of coiled sprout in ‘Majestic’ potatoes was increased by chitting the seed, planting deeply and compacting the soil.Stem bases of plants from unchitted seed produced coiled stems only in rolled soil and then only few. Coils were most abundant with plants from chitted seed in rolled soil. Rolling the soil increased the incidence of coiling and fasciation more than did chitting.Chitted seed planted 1 in. deep produced very few coils even in rolled soil. Not all coils showed lesions but Verticillium nubilum Pethybr. was frequently isolated from lesions.