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Influence of CDEC on Growth, Maturity, and Yield of Head Lettuce

Published online by Cambridge University Press:  12 June 2017

F. W. Zink  and
H. Agamalian
F. W. Zink
Affiliation:
Department of Vegetable Crops, University of California, Davis
H. Agamalian
Affiliation:
Agricultural Extension Service, Monterey County
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Abstract and summary

Herbicidal rates (5 to 9 lb/A) of 2-chloroallyl diethyldithiocarbamate (CDEC) retarded emergence of head lettuce (Lactuca sativa L.) reduced both pre- and postthinning plant populations, caused injury symptoms in young plants, affected the subsequent rate of growth, date of maturity, weight of marketable heads, and yield. Decreased yields were attributed to a reduction in plant population, poor head solidity, and small head development. Reductions in yield were in proportion to dosage and of economic importance.

Type
Research Article
Information
Weeds , Volume 13 , Issue 1 , January 1965 , pp. 19 - 22
Copyright
Copyright © 1965 Weed Science Society of America 

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References

Literature Cited

1. Agamalian, H. 1962. Weed control in lettuce and cole crops. Proc. California Weed Conf. 14:17–19.Google Scholar
2. Anonymous. 1963. Weed control recommendations. California Agr. Ext. Mimeo AXT 17. p 9.Google Scholar
3. Ashton, Floyd M. 1959. Weed control in lettuce and cole crops. Proc. California Weed Conf. 11:32–33.Google Scholar
4. Duncan, D. B. 1955. Multiple range and multiple F tests. Biometrics 11:1–42.CrossRefGoogle Scholar
5. Pew, W. D. 1960. Weed control in lettuce. Univ. Arizona Expt. Sta. Rept. 189. p 18–20.Google Scholar
6. Whitaker Thomas, W., and Ryder, E. J. 1962. Lettuce and its production. U.S. Agr. Res. Service Handbook 221:1–49.Google Scholar
7. Zink, F. W. 1959. Development of spiral heads in Great Lakes lettuce. Proc. Am. Soc. Hort. Sci. 73:377–384.Google Scholar
8. Zink, F. W. and Yamaguchi, M. 1962. Studies on the growth rate and nutrient absorption of head lettuce. Hilgardia 32: 471–500.CrossRefGoogle Scholar