Skip to main content Accessibility help
×
Home

Competition of Florida Beggarweed and Sicklepod with Peanuts II. Effects of Cultivation, Weeds, and SADH

  • Gale A. Buchanan (a1), Ellis W. Hauser (a2), W. J. Ethredge (a3) and S. R. Cecil (a4)

Abstract

When peanuts (Arachis hypogaea L.) were not kept weed-free, a single cultivation 4 weeks after emergence increased yields substantially over those of non-cultivated peanuts. Cultivation had no effect, however, when peanuts were maintained weed-free for 4 or 8 weeks. The length of the weed-free periods, cultivation, and the presence or absence of peanuts all strongly influenced the density of the sicklepod (Cassia obtusifolia L.) plants which grew above the canopy of peanut foliage. Peanut foliage, which was released from weed-free maintenance at 8 weeks but then competed with sicklepod until harvest, reduced the green weight of sicklepod 95 to 98% thus illustrating the competitive capacity of the peanut plant. Moderate stands of Florida beggarweed [Desmodium tortuosum (Sw.) DC] did not markedly affect yield of peanuts. Application of a growth regulator, succinic acid, 2,2-dimethylhydrazide (SADH), did not influence weed competition or yield of in-shell peanuts consistently at any of the three locations. Quality analyses showed that treatment variables did not modify the taste of peanuts; however, in some experiments, components of the market grade of in-shell peanuts were changed by SADH, cultivation, length of the weed-free period, and cultivation X length of the weed-free period.

Copyright

References

Hide All
1. Brown, R.H. and Ethredge, W.J. 1974. Effects of succinic acid 2,2-dimethylhydrazide on yield and other characteristics of peanut cultivars. Peanut Sci. 1:2023.
2. Buchanan, G.A. and Burns, E.R. 1970. Influence of weed competition on cotton. Weed Sci. 18:149154.
3. Burnside, O.C. and Wicks, G.A. 1967. The effect of weed removal treatments on sorghum growth. Weeds 15:204207.
4. Dawson, J.H. 1964. Competition between irrigated field beans and annual weeds. Weeds 12:206208.
5. Dawson, J.H. 1965. Competition between irrigated sugar beets and annual weeds. Weeds 13:245249.
6. Hauser, E.W. and Buchanan, G.A. 1974. Control of Florida beggarweed and sicklepod in peanuts with dinoseb. Peanut Sci. 2:4044.
7. Hauser, E.W., Buchanan, G.A., and Ethredge, W.J. 1975. Competition of Florida beggarweed and sicklepod with peanuts. I. Weed-free maintenance and weed competition. Weed Sci. 23:368372.
8. Hauser, E.W., Cecil, S.R., and Dowler, C.C. 1973. Systems of weed control for peanuts. Weed Sci. 21:176180.
9. Hauser, E.W., Santelmann, P.W., Buchanan, G.A., and Rud, O.E. 1973. Controlling weeds in peanuts–Culture and uses. American Peanut Research and Education Association, Inc., Stone Printing Company, Roanoke, VA. 684 pp.
10. Hill, L.V. and Santelmann, P.W. 1969. Competitive effects of annual weeds on Spanish peanuts. Weed Sci. 17:12.
11. Smith, R.J. 1974. Competition of barnyardgrass with rice cultivars. Weed Sci. 22:423426.
12. Vester, Reafield, Buchanan, G.A., and Rodgers, E.G. 1974. Response of peanuts and broadleaf weeds to postemergence herbicide treatments. Proc. S. Weed Sci. Soc. 51.

Competition of Florida Beggarweed and Sicklepod with Peanuts II. Effects of Cultivation, Weeds, and SADH

  • Gale A. Buchanan (a1), Ellis W. Hauser (a2), W. J. Ethredge (a3) and S. R. Cecil (a4)

Metrics

Full text views

Total number of HTML views: 0
Total number of PDF views: 0 *
Loading metrics...

Abstract views

Total abstract views: 0 *
Loading metrics...

* Views captured on Cambridge Core between <date>. This data will be updated every 24 hours.

Usage data cannot currently be displayed