Hilgardia
Hilgardia
Hilgardia
University of California
Hilgardia

Spiraled heads in lettuce: Malformation in Great Lakes lettuce strains apparently an inherited character producing united wrapper leaf margins

Author

F. W. Zink

Author Affiliations

F. W. Zink is Specialist in Vegetable Crops, University of California, Davis and Salinas.

Publication Information

Hilgardia 13(10):6-8. DOI:10.3733/ca.v013n10p6. October 1959.

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Abstract

Great Lakes lettuce, adapted to culture under a range of environmental conditions, normally produces a medium-large, globular, semi-exposed head. In some plantings, however, a percentage of the plant population develops conical-shaped heads, with the wrapper leaves or head leaves in a spiral-like fold. Market-stage plants of this type are generally referred to as spiraled heads. The shipper and retailer prefer a slightly oblate head with broad, flat butt, which can be packed evenly and firmly.

Zink F. 1959. Spiraled heads in lettuce: Malformation in Great Lakes lettuce strains apparently an inherited character producing united wrapper leaf margins. Hilgardia 13(10):6-8. DOI:10.3733/ca.v013n10p6
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