Glandless acala cotton: More susceptible to insects
John H. Benedict, University of California
Thomas F. Leigh, University of California
Ward Tingey, Cornell University
Angus H. Hyer, USDA Cotton Research Station
California Agriculture 31(4):14-15. DOI: 10.3733/ca.v031n04p14.
Abstract Not Available – First paragraph follows:
Commercially grown Acala cottons (Gossypium hirsutum L.), like most other species of the genus Gossypium, have evolved an effective chemical resistance that deters most plant-feeding animals. The biologically toxic component is a group of related, secondary plant metabolites known as terpenoids. Gossypol, the best known of these terpenoids, is a polyphenolic yellow pigment closely associated with the epidermal glands present on all aerial plant parts as well as in the cottonseed. Most commercial cottonseed contains about 1 percent gossypol, depending on variety and environmental conditions. Expensive chemical and physical procedures are used to remove gossypol from cottonseed products destined for use as food for non-ruminant animals.
John H. Benedict is former Post Graduate Research Entomologist, Department of Entomology, University of California, Davis (now Assistant Professor, Department of Entomology, Texas A&M University, Corpus Christi); Thomas F. Leigh is Entomologist, Department of Entomology, University of California, Davis; Ward Tingey is Assistant Professor, Department of Entomology, Cornell University, Ithaca, New York; Angus H. Hyer is Research Agronomist, USDA Cotton Research Station, Shafter.