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Effect of preharvest desiccants on Group IV Glycine max seed viability

Published online by Cambridge University Press:  20 January 2017

Andrew C. Bennett  and
David R. Shaw
Andrew C. Bennett
Affiliation:
Department of Plant and Soil Sciences, Mississippi State University, Mississippi State, MS 39762
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Abstract

The effect of two commonly used desiccant tank mixtures on Glycine max seed production and viability when applied at G. max growth stages R5 to R8 (R5 = beginning pod fill, R6 = full green pod, R7 = beginning maturity, R8 = full maturity) was evaluated. Two mid-Group IV G. max cultivars, one conventional (‘Northrup King 4260’) and one glyphosate-tolerant (‘Asgrow 4701RR’), were evaluated. Tank mixtures containing either glyphosate + sodium chlorate or paraquat + sodium chlorate + surfactant reduced yield, seed weight, and subsequent germination, emergence, and seedling growth when applied at R5 or R6 to either G. max cultivar. Glyphosate + sodium chlorate applied at R7 reduced germination of the glyphosate-tolerant cultivar. When applied at R6 or R7, glyphosate + sodium chlorate reduced the next generation's seedling length compared to paraquat + sodium chlorate. Glyphosate + sodium chlorate increased the number of abnormal seedlings produced in the conventional cultivar compared to paraquat + sodium chlorate. These results indicate that preharvest desiccant applications should not be made prior to G. max maturity (R7).

Keywords

Glyphosateparaquatsodium chlorateGlycine max (L.) Merr. ‘AG 4701RR,’ ‘NK 4260,’ soybeanEarly maturationharvest aid
Type
Research Article
Information
Weed Science , Volume 48 , Issue 4 , August 2000 , pp. 426 - 430
Copyright
Copyright © Weed Science Society of America 

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References

Literature Cited

Anonymous. 1998. Weed control guidelines for Mississippi. Mississippi State, MS: Mississippi State University Extension Service. Pub. 1532.Google Scholar
Association of Official Seed Analysts. 1988. Rules for testing seeds. J. Seed Technol. 12:1–122.Google Scholar
Azlin, W. R. and McWhorter, C. G. 1981. Preharvest effects of applying glyphosate to soybeans (Glycine max). Weed Sci. 29:123–127.Google Scholar
Baur, J. R., Miller, F. R., and Bovey, R. W. 1977. Effect of preharvest desiccation with glyphosate on grain sorghum seed. Agron. J. 69:1015–1018.Google Scholar
Bovey, R. W., Miller, F. R., and Baur, J. R. 1975. Preharvest desiccation of grain sorghum with glyphosate. Agron J. 67:618–621.Google Scholar
Buehring, N. W., Hancock, F. G., Roberts, G. M., and Reginelli, D. B. 1994. Early maturity soybeans in Mississippi. Pages 115–122 In Proceedings of the Southern Soybean Conference. St. Louis, MO: American Soybean Association.Google Scholar
Cathey, G. W. and Barry, H. R. 1977. Evaluation of glyphosate as a harvest-aid chemical on cotton. Agron. J. 69:11–14.Google Scholar
Cerkauskas, R. F., Dhingra, O. D., Sinclair, J. B., and Foor, S. R. 1982. Effect of three desiccant herbicides on soybean (Glycine max) seed quality. Weed Sci. 30:484–490.Google Scholar
Delannay, X., Bauman, T. T., Beighley, D. H., et al. 1995. Yield evaluation of a glyphosate-tolerant soybean line after treatment with glyphosate. Crop Sci. 35:1461–1467.Google Scholar
Ellis, J. M., Shaw, D. R., and Barrentine, W. L. 1998. Herbicide combinations for preharvest weed desiccation in early maturing soybean (Glycine max). Weed Technol. 12:157–165.Google Scholar
Fehr, W. R., Caviness, C. E., Burmood, D. T., Pennington, J. S. 1971. Stage of development descriptions for soybeans, Glycine max (L.) Merrill. Crop Sci. 11 (6): 929–931.Google Scholar
Gabe, H. L. 1994. Indeterminate short season soybeans for the South: Some breeding and agronomic considerations. Pages 125–130 In Proceedings of the Southern Soybean Conference. St. Louis, MO: American Soybean Association.Google Scholar
Oliver, L. R. 1993. Weed control concerns and cost effective strategies. Pages 129–133 In Proceedings of the Southern Soybean Conference. St. Louis, MO: American Soybean Association.Google Scholar
Rabb, J. L. and Ryan, S. M. 1993. Cultural practices for early-maturing soybean production. Pages 124–128 In Proceedings of the Southern Soybean Conference. St. Louis, MO: American Soybean Association.Google Scholar
Ratnayake, S. and Shaw, D. R. 1992 Effects of harvest-aid herbicides on soybean (Glycine max) seed yield and quality. Weed Technol. 6:339–344.Google Scholar
Whigham, D. K. and Stoller, E. W. 1979. Soybean desiccation by paraquat, glyphosate, and ametryn to accelerate harvest. Agron. J. 71:630–634.Google Scholar