Abstract

A field study was conducted on two cultivars of potatoes ('Atlantic' and 'Frito-Lay 795') on four row covers (clear and white slitted, VisPore and spunbonded polyester) at Charleston, Missouri.. There were significant interactions in the sub-plot (row covers × varieties) and sub-subplot (varieties × flower treatments) for grade A numbers of potatoes. Total numbers of potatoes for 'Atlantic' and 'Frito-Lay 795' cultivars as influenced by flower removal and row cover treatments showed significant interactions of row covers × varieties and varieties × flower treatmants. Yield of cwt/acre of grade A potatoes for both cultivars as influenced by flower removal and row cover treatments showed a significant interaction between row covers × varieties. There are genetic differences among potato cultivars in response to flower removal. Cultivar response to row covers were also different based on genetic makeup. Clear and spunbonded polyester were superior to other types of row covers for grade A numbers and yield of potatoes.

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