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Reaction of Triticum Species to DDT 1
Author(s) -
Briggle L. W.
Publication year - 1964
Publication title -
crop science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.76
H-Index - 147
eISSN - 1435-0653
pISSN - 0011-183X
DOI - 10.2135/cropsci1964.0011183x000400050005x
Subject(s) - citation , library science , division (mathematics) , biology , crop , proofreading , agricultural science , agronomy , computer science , mathematics , arithmetic , biochemistry , polymerase , gene
THE use of agricultural chemicals for control of insects, bacterial and fungus diseases, and weeds in crop production is of comparativley recent origin. Within the past decade the application of insecticides, fungicides, and herbicides accelerated at a rapid rate. Occasionally some injury to crop plants occurred, particularly when recommendations for application were not adhered to. In addition, a few cases of genetic susceptibility to a specific chemical were noted. Wester and Weigel (4) sprayed insecticides on bush lima beans grown in the field in 1947 and 1948. They reported severe injury by l,l,l-trichloro-2,2-bis(^-chlorophenyl) ethane (DDT) to one variety and no damage to another. Hayes (2) and Griffiths and and Hayes (1) in 1959, and Wiebe and Hayes (5) in I960 demonstrated varietal reaction to DDT in barley. Seedlings of some varieties died after foliar application of DDT while others were unharmed. Varietal differences were controlled by a single gene with susceptibility dominant to resistance. Resistance to DDT in barley did not seem to be associated with any gross morphologic factor, and there was no evidence of selective advantages or disadvantages for the gene during evolution of cultivated barleys. Wiebe and Hayes (5) found that only about 5% of the United States and Canadian commercial barley varie-